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The "Condition-First" Revolution: Why your Summer Line Failed you Last Winter

2/9/2026

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Close-up of a fly fisherman on a snowy riverbank holding a rod with ice-frozen guides, featuring RIO Premier Glacial Gold fly line and Simms G3 Guide Waders for winter conditions

The "Conditions-First" Revolution: Why Your Summer Line Failed You Last Winter

It’s a scenario every Bow River angler knows too well.

You’re standing at Policeman’s Flats in February. The air temp is -5°C, but the water is open. You spot a rising fish in a soft seam, you go to make the cast, and your line hits the water looking like a slinky. Instead of a straight layout, you have a series of tight coils that immediately drag your fly out of the zone.

You didn't miss that fish because of your cast. You missed it because of your core.

For years, we’ve tried to force our "all-around" summer lines to perform in freezing conditions. But in 2026, the industry has finally caught up. We are seeing a massive shift toward "Conditions-First" Engineering—gear built specifically for the extreme variances of waters like the Bow.

If you are tired of fighting your gear, here is why you need to upgrade your winter kit this season.


1. The Science of the "Coil"

Standard trout lines are built with cores designed for 15°C to 25°C days. When that core hits near-freezing water, the material constricts and stiffens, retaining the "memory" of being on your reel.

The Solution: RIO Premier Glacial Gold

This is one of the most searched pieces of gear for 2026, and for good reason. It features RIO's new PolarFlex coating. Unlike standard PVC which hardens, this coating remains incredibly supple even in sub-zero temps.

  • Why it matters on the Bow: A supple line means a straighter layout. A straighter layout means a better dead-drift. It’s that simple. If you are nymphing the winter lows, you need a direct connection to your fly, not a slinky of slack.

2. Waders That Actually Breathe in Winter

We all know the clammy feeling of hiking to a spot in heavy neoprene, sweating, and then freezing as soon as you stop moving.

Simms has tackled this in 2026 with the updated G3 Guide Wader. The buzz this year isn't just about durability; it's about their new 4-layer GORE-TEX Pro Shell lamination.

  • The Upgrade: It offers a 33% increase in breathability over previous models. This is critical for winter wading. Keeping your base layers dry from sweat is the only way to stay warm when you are standing thigh-deep in 2°C water for three hours.

3. The "Micro-Game" Accessories

"Conditions-First" isn't just about big ticket items; it's about the terminal tackle adjustments.

  • Ceramic Guide Ice-Off Paste: If you aren't coating your guides before you leave the truck, you're already behind. The new environmentally safe pastes for 2026 last longer and prevent that dreaded ice-buildup in your rod tip.
  • Low-Vis Fluorocarbon: In winter, the water clarity on the Bow is extreme. Fish have time to inspect everything. The new 2026 fluorocarbons are focusing on "knotted strength" at smaller diameters (6X and 7X), allowing you to fish lighter than ever without fearing the break-off.

The Bottom Line

Fishing the Bow River in winter is technical enough without your gear working against you. 2026 is the year to stop "making do" with your summer setup.

Book a Spring 2026 Float Trip
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February Chinook - Why now is the time to master the Bow River

2/2/2026

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The February Chinook: Why Now is the Time to Master the Bow River

As we move into February 2026, the Bow River is offering a unique window of opportunity for anglers who aren't afraid of a little frost. While most are hunkered down waiting for spring, the "Blue Ribbon" stretch through Calgary is wide open and fishing surprisingly well thanks to the recent Chinook winds.

If you want to beat the summer rush and sharpen your skills, here is the current state of the river and why you should be on the water this week.


Current River Conditions (February 2, 2026)

The Bow is currently in its prime winter shape. Flows are holding steady at a "skinny" 30-40 cms, making the river highly readable. The water is crystal clear, but ice shelves are still present along the banks—exercise extreme caution and avoid standing on shelf ice that could break away.

  • Water Temps: Hovering between 0°C and 4°C.
  • Fish Behavior: Trout are stacked in slow, deep "troughs" and soft seams. They are conserving energy, so they won't move far for a meal—accuracy and depth are everything right now.

Mastering the Winter Midge Hatch

Believe it or not, dry fly season hasn't ended; it's just gotten smaller. On calm, overcast afternoons when the temperature creeps toward +5°C, keep your eyes peeled for midges.

  • The Technique: Look for subtle "sipping" rises in the soft slicks.
  • The Fly: A #18-22 Griffith’s Gnat or a Zebra Midge pupa.

Nymphing: Low, Slow, and Deep

If you aren't seeing heads, you need to go to the basement. Nymphing remains the most consistent way to put fish in the net in February.

  • The Rig: A "heavy-light" combo is working best. Run a heavy tungsten bead nymph, like Will’s Chai Tea Jig, to get down fast, followed by a smaller Perdigon or San Juan Worm as your trailer.
  • The Drift: You need a dead drift. Because the water is so slow, any hint of "drag" on your line will result in a refusal. Use an 11-foot rod if possible to better manipulate your line and achieve a longer, more natural drift.

Trending Gear for 2026

The 2026 gear season has officially kicked off, and eco-conscious tech is leading the charge. The Guideline Nova Reel has been the talk of the fly shops this winter—its recycled aluminum construction and smooth carbon drag are perfect for the delicate 6X tippets required for winter midges. Additionally, the Simms G3 Guide Waders remain the gold standard for staying dry and warm during these February Chinook sessions.


Secure Your Summer 2026 Float Trip

While winter fishing is a great way to stay sharp, the prime summer dates for July and August 2026 are already filling up fast. This is the "Hopper" window—when the big Browns come out to play and the river is at its most electric.

Why book now?
1. Prime Dates: The best weekend slots for the Golden Stonefly and Hopper hatches are the first to go.
2. Expert Guides: Our team knows the 2026 flow patterns better than anyone.
3. Peace of Mind: Lock in your 2026 dates before the spring rush for bookings.

Book Your 2026 Bow River Float Trip Today
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The Winter Chinook Cure: How to Fish the Bow River in January - Fly Fishing Bow River

1/26/2026

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The Winter "Chinook" Cure: How to Fish the Bow River in January (And Why You Should)

If you live in Calgary, you know the feeling. The temperature swings from a bone-chilling -20°C to a balmy +6°C in a matter of hours. That warm "Chinook" wind doesn't just melt the ice on your driveway; it wakes up the trout.

At Fly Fishing Bow River, we see January not as the off-season, but as the "technical season." The crowds are gone, the water is crystal clear, and the fish are holding in predictable winter runs.

If you are itching to get a bend in the rod before spring, here is what you need to know about fishing the Bow right now.


1. The Water is Low (and That’s a Good Thing)

Currently, the Bow is flowing at a winter baseline of roughly 30-40 cms (cubic meters per second). For the uninitiated, this means the river is "skinny."

  • Where the fish are: Trout have moved out of the fast heavy riffles. They are stacking up in the slow, deep pools and "frog water" (water that looks almost still). They want to conserve energy.
  • The Strategy: You don't need to cover miles of water. Find a deep bucket or a slow seam, and dissect it. If you catch one fish, don't move. There are likely twenty more sitting right next to it.

2. The Magic of the Midge

You might think dry fly fishing is months away, but you’d be wrong. On these warm January afternoons, we are seeing significant midge hatches.

When the air temp hits that 5°C mark, look for clusters of tiny insects on the surface. You'll see noses breaking the water in the soft slicks near the banks.

  • The Rig: A Griffith’s Gnat (size #18-20) is your best friend here. If you can’t see it on the water, run it as a "dropper" behind a larger, more visible fly.
  • Pro Tip: Winter fish are spooky. You need to downsize your tippet to 5X or even 6X fluorocarbon. If you are drag-free, they will eat.

3. Nymphing: Low and Slow

If the fish aren't looking up, you need to go down. Winter nymphing is a game of inches. The water is cold, so the trout are lethargic—they won't chase a fly. You have to hit them on the nose.

  • The Flies: Red or pink San Juan Worms (the "Calgary staple"), small Zebra Midges, and Pheasant Tails with a bit of flash.
  • The Depth: Set your indicator deep. If you aren't tapping the bottom occasionally, you aren't fishing.

Why You Should Book Your Summer Dates Now

While catching a 20-inch Brown Trout in a snowstorm is a badge of honor, it also reminds us of what’s coming: The Golden Stoneflies of July.

We are currently seeing a massive spike in bookings for the Summer 2026 season. Anglers who are out wading now are already locking in their float trips for the prime "Hopper" window.

Don't wait for the runoff. If you want to experience the Bow River at its absolute peak, you need to plan ahead.

Ready to Float?

Get off the couch and enjoy the Chinook, but remember to secure your spot for the summer.

Click here to contact us and book your Summer 2026 guide today.

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Not All Hair is Created Equal ; A Guide to Selecting Deer Hair for Fly Tying

1/24/2026

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Not All Hair is Created Equal: A Guide to Selecting Deer Hair for Fly Tying

If you’ve ever tried to spin a Muddler head using stiff bucktail, or tied a dry fly wing that flared out like a dandelion because you used belly hair, you know the struggle.

One of the most common questions we get at Thursday Night Live Fly Tying is: "Why does my deer hair look different than the tutorial?"

The answer is almost always the material itself. Deer hair is not a single product; it’s a spectrum. The texture, hollowness, and flare depend entirely on where the hair was harvested from the animal. To get your flies looking professional and fishing correctly, you need to match the hair to the application.

Here is your breakdown of the different types of deer hair for fly tying and how to choose the right patch for the job.


1. Bucktail: The Streamer Staple

Bucktail is likely the first hair most tiers buy. It comes from the tail of the deer and is distinct because it is solid (or semi-solid), long, and crinkly.

  • Characteristics: It does not flare or spin well because the fibers are not hollow. It is durable and maintains its silhouette in the water.
  • Best Uses: This is your go-to for streamers like Clouser Minnows and Lefty’s Deceivers. It provides the long, baitfish profile that predators love without the bulk of spun hair.

2. Deer Belly Hair: The Spinner’s Choice

If you want to tie big, buoyant bass bugs or dense heads, you need Deer Belly Hair. This hair comes from the underside of the whitetail deer. It is coarse, incredibly hollow, and typically white (which means it takes dyed colors vividly—think bright chartreuse or hot orange).

  • Characteristics: Because it is so hollow, it crushes easily under thread tension, causing it to flare outward aggressively.
  • Best Uses: Spinning hair for Bass Poppers, Divers, and large Muddler Minnows. If you are looking to pack hair tight for a "shaved" head, this is what you want.

3. Coastal Deer Hair (Comparadun Hair)

For the dry fly purist, this is the holy grail. Coastal deer (or specific patches labeled "Comparadun") have hair that is short, fine, and has short dark tips.

  • Characteristics: It is less hollow than belly hair, meaning it won’t flare into a messy ball when you tie it in. It stays grouped together, creating a perfect upright fan.
  • Best Uses: Comparaduns, Sparkle Duns, and wings for Humpies. If you are fishing the Bow River for picky rainbows, a sparse Comparadun tied with this fine hair is often the ticket.

4. Standard Body Hair: The Workhorse

This is often just labeled "Deer Hair" in shops. It comes from the flanks of the deer. It is a middle-ground material—it spins reasonably well but is finer than belly hair.

  • Best Uses: Elk Hair Caddis variants (though Elk is stiffer), Stimulators, and smaller Muddler heads where you don't want the massive bulk of belly hair.

The Bottom Line

Don’t fight your materials. If you are struggling to get a fly to look right, check your package. You can't force bucktail to spin, and you can't force belly hair to make a neat dry fly wing.

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November 13th, 2025

11/13/2025

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Calgary Fly Fishing • Bow River

Why Is Fly Fishing So Addicting?

A curious (and slightly cheeky) meditation from the banks of Calgary’s Bow River.

You rarely hear, “I tried fly fishing once, not for me.” In Calgary—home to the legendary Bow River—you either never start or you never stop. Call it what you want: a sport, an art form, or mindfulness with better hats. Whatever it is, Calgary fly fishing has a way of getting under your skin and setting up camp.

The River Where Failure Feels Like Success

On the Bow, you can fish all day, miss every trout, and still drive home grinning. We romanticize the drift that almost fooled a brown, the cast that unfurled like poetry. Golfers rage; anglers reflect. Maybe it’s delusion. Maybe it’s enlightenment. Maybe it’s why guided fly fishing in Calgary keeps growing—because even the “skunks” feel meaningful.

Rhythm, Presence, and the Loop of a Perfect Cast

Fly casting is meditation disguised as sport. You’re trying to deliver a whisper to a wild animal using physics, patience, and a feathered lie. For a few seconds, your to-do list dissolves into a clean loop. On a blue-green run below downtown, Bow River fly fishing turns time into water and worry into line speed.

The Puzzle We Don’t Want to Solve

Humans love riddles. Trout write the best ones. Is it the wrong fly? Micro-drag? Are you breathing too loudly? The Bow changes the rules hourly. When you finally crack the code—hello dopamine—the river shuffles the deck. That “maybe” before the take? That’s the hook you can’t shake.

Humility, Trout, and a Bit of Philosophy

The river doesn’t care about your waders or your follower count. It rewards attention, not ego. Somewhere between wind knots and miracle mends, you realize this isn’t only about catching fish—it’s about catching yourself paying attention. For many of us, Calgary fly fishing guides aren’t just teachers; they’re river philosophers with oars.

So why is fly fishing so addicting? Because it’s church without walls, art without galleries, therapy that occasionally bites back. And the Bow River is one of the best sanctuaries on earth.

Quick Answers

Is Calgary good for fly fishing?
Yes—Calgary’s Bow River is a world-class wild trout fishery with year-round opportunities and strong brown and rainbow trout populations.
Do I need a guide for the Bow River?
You can DIY, but hiring a Calgary fly fishing guide shortens the learning curve, improves safety, and boosts your odds when conditions get tricky.

Written by Fly Fishing Bow River Outfitters

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5 tips to avoid heat stroke on your fly fishing adventure

8/1/2025

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5 Tips to Avoid Heat Stroke on a Fly Fishing Adventure

Summer fly fishing in Alberta is spectacular – picture casting to big trout under bright blue skies. But those sunny days and high temperatures can sneak up on you. Whether you’re floating down the Bow River or hiking into a backcountry stream, fly fishing in summer heat requires some extra precautions to keep your body and mind in the game.

1. Stay Hydrated and Drink Often

It sounds obvious, but the number one defense against heat-related illness is hydration. You lose a lot of fluid casting and rowing under the sun, and if you're not drinking water regularly, your body can’t cool itself. Guides: remind your clients to sip throughout the day—not just at lunch. Clients: bring a refillable water bottle and use it. Drink water early and often—even before you feel thirsty.

2. Dress for the Sun: UPF Clothing and Gear

A custom UPF 50+ hooded sunshirt from Fly Fishing Bow River Outfitters keeps the sun off on a summer float trip. One of the best ways to beat the heat is to wear the right clothing. Long sleeves may seem counterintuitive in the heat, but breathable, light-colored fabrics with built-in sun protection are your best friend. A buff, wide-brimmed hat, and polarized sunglasses complete the setup. And if you haven’t tried our custom UPF 50 hooded sunshirts—now’s the time. They’re designed by guides, for guides and clients alike.

3. Slather on the Sunscreen (and Reapply)

Even with great sun shirts and hats, any exposed skin needs sunscreen – and plenty of it. Sunburn isn’t just a minor annoyance; it actually affects your body’s ability to cool itself. Use a broad-spectrum SPF 30 or higher and reapply every two hours. Don’t forget your ears, neck, and hands—especially if you’re rowing or stripping line all day.

4. Take a Midday Break and Pace Yourself

When the summer sun is directly overhead, it’s time to dial things back. The sun’s rays are strongest in the middle of the day (roughly 10am to 4pm), so consider planning your trip to start early or fish into the evening. Take shady bank breaks or pause for a cold drink in the truck. A slower pace not only conserves energy—it also keeps you more alert and responsive to fishy windows.

5. Know the Signs and Look Out for Each Other

Guides and anglers are a team on the water, and part of that teamwork is watching for signs of heat stress in yourself and others. Heat illness often starts subtly—headache, dizziness, confusion, nausea. Don’t ignore these signs. Speak up early, find shade, and cool down. Bring an extra towel or cooling bandana. For guides: check in with your guests, especially if they’re older or new to long days in the sun.

Conclusion

A fly fishing adventure on a gorgeous summer day should be about making great memories – not recovering from heat stroke. By staying hydrated, dressing smart, using sun protection, pacing your day, and practicing good guide/client teamwork, you’ll stay safe and focused on what matters most—chasing trout and enjoying the river.

Sources

  • Tim Allard, Bass Pro Shops 1Source
  • Randy Zellers, Arkansas Game & Fish Commission
  • North 40 Outfitters
  • Mayo Clinic Health System
  • Latti Associates
  • Anderson’s Lodge
  • U.S. Dermatology Partners
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Late July 2025 Fly-Fishing Report – Bow River & Southern Alberta Streams

7/28/2025

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July 2025 Fishing Report: Bow River & Southern Alberta Streams

Bow River (Glenmore to Carseland) – July Recap

July 2025 has delivered record rainfall to Southern Alberta, significantly impacting fly fishing conditions along the Bow River. Mid-month saw torrential rains causing dramatic spikes in river flows, transforming typically clear waters into muddy torrents and forcing the cancellation of many guided trips. However, as we approach the end of July, conditions are improving daily, with clarity steadily returning and fishing opportunities increasing.

Anglers should currently focus on fishing the banks, where trout have been pushed by the higher flows. Dark-colored streamers and large nymph patterns like stoneflies and San Juan worms have been productive even in murky conditions. As visibility improves, expect excellent dry-fly action with caddis, PMDs, golden stoneflies, and terrestrials such as hoppers becoming prominent.

Southern Alberta Streams – High but Clearing

Streams in the Southern Alberta foothills, including the Oldman, Highwood, Castle, and Livingstone rivers, were similarly affected by heavy mid-July rainfall. These rivers remain slightly elevated and off-color but are gradually clearing. The abundant moisture this summer ensures healthy stream flows and cool temperatures for trout, setting the stage for exceptional August fishing conditions.

Current successful tactics include nymphing deep pools with stonefly and caddis larvae, streamer fishing along banks, and surface action with foam attractor patterns as clarity returns. Watch for consistent insect hatches, particularly Golden Stoneflies, Yellow Sallies, Green Drakes, and abundant terrestrial insects.

The Importance of Trip Cancellation Insurance for Anglers

This summer’s unpredictable weather highlights the importance of trip cancellation insurance for outdoor enthusiasts. Travelers planning fly fishing or outdoor adventures should strongly consider insurance coverage that protects against weather-related cancellations and disruptions. Coverage ensures you can recover expenses and reschedule trips without bearing the full financial burden if severe weather interferes with your plans.

August 2025 Outlook: Excellent Fishing Ahead

Despite July's challenging conditions, the outlook for August is highly promising. The abundant rainfall has ensured strong, cold water flows across Southern Alberta's trout waters. Anglers can anticipate excellent hopper fishing along the Bow River, steady dry-fly activity with caddis and PMDs, and great streamer action for larger trout.

Southern Alberta’s smaller streams are poised for outstanding late-summer fishing as well, with dropping water levels, clearing conditions, and aggressive trout. Anglers should prepare for prime hopper-dropper fishing and outstanding dry-fly opportunities as rivers stabilize and fish resume active feeding patterns.

Overall, August 2025 is shaping up to be an excellent month for fly fishing in Southern Alberta. Stay flexible, and have patience as we work through this wet July together! We look forward to getting everyone back on the rivers ASAP!

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Streamer Fishing for Trout: How to Choose Flies, Colors, and Find Big Fish

7/20/2025

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The Weight of the Strip: Reflections on Streamer Fishing for Trout

Streamer fishing for trout feels like an entirely different relationship with the river. It is not about matching the hatch or waiting for a perfect drift. It is louder, heavier, and more deliberate. You are not just offering a trout something to eat. You are presenting a decision.

As a guide on the Bow River, I see it every time I take clients out and we commit to throwing big streamer flies. At first, there is excitement in their eyes. The casts feel powerful, the patterns pulse in the water, and the river feels alive with possibility. But as the hours pass without a grab, I see the change. They begin to wrestle with the consequences of streamer fishing. This is not a numbers game. There are no steady nymph rigs bouncing along the bottom, no gentle sips on the surface. There can be hours of silence.

And then, without warning, the water erupts. The rod folds, and there is that unmistakable jolt of life tearing through the line. It is in that instant—the surge, the chaos, the violence—that every client lights up. That one moment, even when rare, erases all the empty casts. It reminds us why we choose to fish streamers despite the risk.

Every Method Has a Consequence

Streamer fishing carries a tradeoff. If you fish nymphs, you will almost always connect with more trout. You can build numbers, but you trade away the raw electricity that comes from a streamer eat. If you choose to fish streamers, you might not see many fish, but the reward is a moment so intense it stays with you long after the day ends. On the Bow River or anywhere trout swim, each method asks you to choose which price you are willing to pay.

Streamer Fly Color Choices: Water and Sky Matter

Understanding how trout see is as important as the retrieve itself. Water clarity, light, and sky conditions shape what streamer patterns will trigger a response.

  • Bright skies and clear water: Trout see everything. Natural streamer colors like olive, tan, and black blend in and keep fish from spooking.
  • Cloudy days or tea-stained flows: Contrast becomes critical. White, yellow, and chartreuse patterns stand out and catch the eye.
  • Heavy overcast or murky water: Dark flies dominate. Black and purple throw bold silhouettes that trout can feel as much as see.

The Search for Moments, Not Numbers

Streamer fishing is not for everyone. It can feel like work, with long stretches of casting heavy rods and stripping large flies through endless water. But for clients who choose it, even knowing the consequences, there is a shared understanding that what we are chasing is not volume. It is a flash, a jolt, and a few seconds where the river reminds us how alive it really is.

Streamer fly fishing for brown trout on the Bow River
Streamer fishing for big browns on the Bow River—rare moments worth the wait.
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Late June 2025 Fishing Report – Bow River & Southern Alberta Streams

6/30/2025

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As we wrap up June, southern Alberta anglers have experienced a rollercoaster of conditions. Early summer hatches were in full swing, but mid-month brought torrential rains that briefly blew out many rivers. Now, as water levels recede, the Bow River is cleaning up nicely and trout are feeding aggressively again – especially with stonefly season upon us. Below we recap how June fished on the Lower Bow River (Calgary to Carseland) and provide an update on foothills streams in southern Alberta (Highwood, Sheep, Oldman, etc.), which remain elevated and colored from the mid-June rain/snow event.
June started with spring runoff raising the Bow’s flow, but initially it wasn’t as severe or dirty as some years. The river rose from roughly 70 m³/s in early May to around 225 m³/s by mid-June , yet clarity remained decent through these gradual increases. In fact, thanks to a lower mountain snowpack this year, the Bow “never really got high & dirty like years past” during early runoff . Anglers enjoyed consistent fishing on many days despite fluctuating flows – trout were still feeding and could be caught on streamers, nymphs, and even dries whenever the water had a bit of stability . High water often pushed fish tight to the banks, where they remained willing to chase flies presented along the edges .


Everything changed around June 21–22, when a torrential rain storm dumped enormous moisture on the region. Up to 100 mm of rain fell around Calgary with nearly double that in the foothills to the west . This rain-on-snow event in the foothills (where ~10–20 cm of late spring snow also fell at higher elevations) caused a sudden high-water event on the Bow and its tributaries . The Elbow River (which joins the Bow in Calgary) rose rapidly, carrying loads of mud and turning the lower Bow into a chocolate-colored torrent. It appears the foothills snowpack sitting on loose soil contributed to the turbidity – as that snow rapidly melted under heavy rain, it likely picked up tons of sediment. (Such rain-on-snow events are known to cause significant soil erosion and sediment runoff .) In this case the Bow’s downstream tributaries like the Elbow delivered the mud; areas upstream in the mountains got far less precipitation and stayed clearer. The result was a blown-out Bow River from Calgary through Carseland for several days. Many guide trips were canceled for safety and poor visibility, and anglers had to wait it out until flows crested and began to fall.


By the final week of June, the Bow River has stabilized and is recovering quickly. Flows are dropping back toward seasonal levels and water clarity is improving each day. With the river “getting back to normal,” the fishing has bounced back nicely. In fact, lots of bugs were already around during the high water (caddis, mayflies, stoneflies) just waiting for a break in the flows – now the trout can finally see them again! Golden Stoneflies, in particular, are the headline hatch right now. These large summer stoneflies have been popping on the lower Bow for some time, and their emergence is progressing upstream into Calgary . Trout that hunkered down through the muddy spell are now gorging on stoneflies as the hatch intensifies. Anglers are reporting more fish looking up for big dries, especially in sections downstream of the city where the hatch started earlier. Smaller hatches of caddis and PMDs (pale morning duns) are still ongoing each day, but those take a backseat to the big Stoneflies for the moment – the trout know a hefty stonefly is a more filling meal. Early morning and late evening tend to be peak time for stonefly activity (when the adults skitter and lay eggs) , so plan to fish the cool hours if you’re targeting that dry-fly action. During midday, you may see fewer rises, but come late afternoon caddis and PMDs will spur rising fish again near riffles and banks .


For tactics, June’s turbulence reinforced a few lessons. When flows were high and off-color, streamer fishing was the ticket to find aggressive trout hugging the banks. Large, dark streamers (black, olive or brown) produced some terrific fish even in the dirtiest water . Many Bow anglers threw double-streamer setups – for example, a flashy baitfish pattern trailed by a darker bugger or leech – to maximize attraction in the murk . Now that clarity is improving, streamer bites can be more hit-or-miss, but don’t be afraid to keep tossing them, especially under cloud cover. As levels fall, fish will start moving out of the flooded shorelines into riffles and seams again . So, shift your focus back to those spots where sediment is clearing and fish can ambush food.


Dry flies are back in play too. With caddis and mayflies hatching daily, fish are rising most consistently in the afternoons and evenings once the water warms a bit . A tandem dry fly rig can be very effective – for instance, a bushy stonefly or grasshopper pattern as an indicator, with a smaller caddis or PMD dry/emerger tied behind. This covers both the “big bite” and the smaller naturals. If fish are visibly up for stoneflies, you can also skip the dropper and throw a single high-floating foam stonefly imitation. Patterns like Stimulators, Chubby Chernobyls or other golden stone dries are great choices. Just use a stout leader (2X or 3X) to turn over those big bugs and handle fierce strikes. When trout seem picky, downsize to a low-riding stonefly pattern or even try an egg-laying female imitation skittered on the surface – sometimes a subtler presentation draws more eats from pressured fish .


Finally, nymphing remains a reliable fallback on the Bow, especially as it transitions out of runoff. In high water, a big stonefly nymph or dark leech with plenty of weight was crucial to get down in the fast, deep flows . Post-spike, you can lighten up a bit, but you still want to dredge the runs and drop-offs where fish hang mid-column. Fish the “walking pace” water – medium-speed riffles and seams, and adjust your weight/tippet until your flies occasionally tick bottom . Productive nymphs lately include stonefly patterns (Pat’s Rubber Legs, Jimmy Legs, etc.), large prince nymphs, and caddis pupa imitations. With water clarity improving to a few feet, even size 14–16 mayfly nymphs (PMD, pheasant tails) can start to work again for picky feeders.


All in all, June on the Bow tested anglers with big flow swings, but the river is shaping up for excellent summer fishing. The quick surge of runoff helped flush out silt and refresh the system without causing major flood damage – a silver lining. Now we have healthy flows, cooling water, and abundant hatches heading into July. Make sure to check the daily flow rates (as dam releases and weather can change conditions overnight) and approach the river with some flexibility . One day the fish might still hug the banks; the next they could be back in mid-river riffles. By staying adaptable with your flies and tactics, you’ll capitalize on the Bow’s improving conditions. The stage is set for the stonefly extravaganza to continue, backed by caddis at dusk and morning mayfly spinner falls – truly a fun time to fish the Bow!
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The Day the Bow River Rose: Remembering the 2013 Calgary Flood That Reshaped a World-Class Fishery

6/20/2025

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When the Bow River Rose:

The Flood That Changed a Fishery 
Calm Before the Storm In mid-June 2013, the Bow River flowed cold and clear through southern Alberta, unsuspecting of the fury that was about to unfold. Snow still clung to the Rocky Mountain peaks; an unusually deep late-season snowpack remained in the high country due to a cool spring and even a late May snowstorm . The day before the flood, river flow levels were unremarkable – around a few hundred cubic metres per second, typical for early summer. Fly fishermen wading the Bow’s gentle runs had no idea that within 48 hours, their beloved river would transform into a raging torrent. It was the calm before a historic storm, with Mother Nature quietly assembling the perfect conditions for disaster: waterlogged ground, lingering mountain snow, and a weather system poised to deliver a deluge. 

The Perfect Storm:

Rain on Snow
On June 19, 2013, dark clouds unleashed a meteorological onslaught over southern Alberta. A stationary high-pressure system to the north forced a moist Pacific low to dump relentless rain on the eastern slopes of the Rockies . In just two days, over 200 mm of rain fell across a vast area – nearly an entire year’s worth of precipitation for this semi-arid region. Some places saw astonishing totals: the town of Canmore recorded 220 mm in 36 hours, and a weather station near High River measured 325 mm in less than 48 hours . Importantly, this wasn’t just rain running off bare ground – it was rain falling on snow. The warm downpour melted the alpine snowpack, turning snow into liquid and multiplying the runoff. The normally thirsty soil was already saturated from prior spring storms, so almost every drop of this rainfall (and melted snow) rushed directly into creeks and rivers. Heavy snow loads remained in the Front Range mountains, so the rain-on-snow effect supercharged the floodwaters . Small mountain streams became brown, boiling rapids overnight. By June 20, tributaries like the Kananaskis, Ghost, Highwood, Sheep, and Elbow were all spilling over their banks . The stage was set for the Bow River – Calgary’s blue-ribbon trout stream – to receive the largest inflow in recorded memory.

Bow River Unleashed:

As the rain pounded down, the Bow River swelled at a rate that defied belief. On the morning of June 20, what had been a fairly placid flow turned into a surging wall of water. In less than 12 hours, the Bow at Calgary rose from roughly 200 m³/s to well over 1,000 m³/s and kept climbing . By the night of June 20, the river had burst over its banks, forcing emergency actions across the region. Authorities issued flood warnings and activated emergency plans as the water raced toward Calgary . On June 21, the Bow River reached its peak flow through the city, gushing at approximately 2,400 m³/s – about eight times its normal rate . (For comparison, this was roughly triple the peak flow of a large 2005 flood a few years prior.) The smaller Elbow River, joining the Bow in downtown Calgary, also exploded to 1,240 m³/s (twelve times its usual flow) , adding to the inundation. Together, these rivers turned low-lying parts of the city into a temporary lake.
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City streets became canals as the Bow River roared through neighbourhoods. Around 80,000 people were urgently evacuated from their homes in Calgary alone , and dozens of communities throughout southern Alberta declared states of emergency . Bridges were overtopped or washed out; power outages plunged parts of the city into darkness. The normally sedate Bow, beloved by anglers for its clear flows, had become a churning, chocolate-brown monster carrying trees, debris, and even pieces of houses in its current. Eyewitnesses along the banks on June 21 described the river as “unrecognizable” – an alien force of nature surging past downtown. At its peak, the Bow ran higher than anyone had seen in several generations, exceeding any flood since 1897 . It was truly a once-in-a-century event, the largest flood in Calgary’s modern history with water levels nearing those of legendary floods from the late 1800s .


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A Region Forever Changed

When the floodwaters finally began to recede after June 22, they left behind a trail of destruction and a landscape forever altered. The 2013 flood was the most costly natural disaster in Canadian history at the time, causing an estimated $5–6 billion in damages across southern Alberta . Whole towns like High River were underwater. In Calgary, 26 neighborhoods were badly flooded . Streets and parks were buried in silt and debris; familiar landmarks were damaged or gone. Tragically, five people lost their lives to the flooding . For those who experienced it, the flood was a life-altering event, a moment when nature’s power humbled an entire region.
For the Bow River itself, the flood was a geomorphic reset. The river scoured its banks and bed with immense force, eroding away entire sections of riverbank and redistributing thousands of tonnes of gravel and sand. Long-time anglers returned to find that their favorite back eddies and side channels simply no longer existed. The river’s architecture was significantly changed – channels shifted, islands and gravel bars moved or disappeared . In Calgary’s iconic Bow River reach, some deep fishing holes were filled in by sediment, while new deep pools were carved elsewhere by the raging current. Tree-lined banks were stripped bare in places, while in other spots the flood deposited new logjams and timber. The Bow’s confluence with smaller tributaries like Fish Creek and the Highwood was completely reshaped by walls of water and debris. It was as if the river had torn up its old blueprint and drawn a new map overnight.

Importantly, not all of these changes were negative for the river’s ecology. While it was heart-wrenching to see beloved river spots altered, floods are a natural process of renewal. Biologists noted that floodwaters, despite wreaking havoc, also created new habitats – for instance, the river carved out fresh side channels and ponds that could become nurseries for juvenile fish . “The changes are all part of the natural process of the river’s own maintenance,” observed Lesley Peterson, a Trout Unlimited biologist, in the months after the deluge . Floods, though destructive, rejuvenate rivers by flushing out accumulated silt, redistributing nutrients, and creating dynamic new environments. In many ways, the Bow River in 2013 was behaving as it always has over centuries – bursting its seams, then gradually healing and finding a new equilibrium. But how would the river’s famous trout fishery fare in the wake of such a cataclysm?



Under the raging floodwaters, the Bow River’s trout were in for the fight of their lives. This river is home to wild populations of brown and rainbow trout (a world-class sport fishery), and these fish had never experienced flows of this magnitude. As the currents sped up and the river volume multiplied, many fish were swept far downstream or into areas they’d never ventured. Some trout likely didn’t survive the violent ride; others were left stranded in atypical places as waters receded. In the days following the flood, observers found live trout flopping in isolated pools and puddles on what had been dry land – side channels and even farmer’s fields that the Bow had temporarily overtaken. The situation looked dire for the fishery. Anecdotal reports suggested a sharp drop in trout numbers, especially rainbow trout, which seemed hardest hit by the flood’s impacts . Rainbows spawn in spring, so the timing was unfortunate – many young rainbow fry may have been simply washed away. Brown trout, which spawn in fall and tend to be a bit larger/older by spring, were thought to have fared slightly better, but they too were displaced and stressed. Long-time fishing guides noted that immediately after the flood, catching trout – especially rainbows – became noticeably more difficult, fueling concern that the Bow’s prized fish population had been decimated.

Yet even amidst this turmoil, there were stories of hope and heroism. As soon as it was safe to approach the river, volunteer crews led by Trout Unlimited Canada (and supported by Alberta biologists and countless local anglers) mobilized for fish rescue operations. They trudged through mud and debris along the Bow’s floodplain, netting stranded trout from residual ponds and channels. Over the week after the flood, these volunteers rescued thousands of fish that would have perished in isolation had they not been returned to the main river . It was an inspiring sight: lines of volunteers passing buckets of wriggling trout, releasing them back into the Bow’s flowing sections. Each rescued fish was a small victory, a sign that the community was determined to help the river recover. “It was heartbreaking and heartwarming at the same time,” one volunteer recounted – heartbreaking to see fish in distress, but heartwarming to see so many people come to their aid. More than 5,000 trout were saved in these efforts , including some trophy-sized browns that had been caught in side ponds. This collective action showed the deep connection Calgarians and Albertans have with the Bow River and its trout – in its darkest hour, they rallied to give back to the river that had given them so much joy.


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Resilience and Recovery:

In the weeks and months after the flood, fisheries biologists kept a close eye on the Bow. They knew that trout populations might take time to rebound, but they were cautiously optimistic. After all, this wasn’t the Bow’s first flood – in 2005, a significant (though smaller) flood hit the river, and data showed that trout numbers bounced back within two years . Rivers and fish are often more resilient than we expect. True to form, by the summer of 2014 there were encouraging signs. Anglers were still catching trout in the Bow, and while catches were lower in some spots, the fish that were caught appeared healthy. Biologists conducting electrofishing surveys observed plenty of young-of-the-year trout in the shallows, indicating that rainbow and brown trout had successfully spawned after the flood and new generations were on the way. In fact, long-term datasets later showed that juvenile trout remained consistently abundant even after 2013 – it was mainly the larger, older trout that had declined in numbers . This meant the building blocks for recovery (the young fish) were in place, as long as they could grow and survive to adulthood.
Over the next few years, the Bow River fishery showed remarkable resilience. Anglers reported that brown trout – which had been almost “unicorns” (rare) immediately after the flood – started to make a strong comeback by 2015 and 2016. Some even noted an increase in large browns, possibly because those hardy fish found refuges during the flood and then had less competition afterward. Rainbow trout numbers, on the other hand, remained a concern. A later scientific analysis confirmed a worrying long-term decline in Bow River rainbows (nearly 50% drop in adult population between 2003 and 2013) . The flood likely contributed to this decline, but it wasn’t the sole factor – other stressors like angling pressure, water management, and the emergence of whirling disease in 2016 also affected the rainbow trout . In response, Alberta’s government and stakeholders launched recovery initiatives, including stricter fishing regulations (the Bow went to catch-and-release only for trout in 2017) and research into cumulative effects on the fishery . These efforts aim to ensure the Bow’s trout have the best chance to thrive in the long run.
Meanwhile, the river itself has healed impressively. The Bow gradually retreated to its pre-flood clarity and flow patterns, albeit in its newly altered channels. Within a year, vegetation started reclaiming the scoured banks; grasses and willows sprouted in the fresh silt deposits, stabilizing the shoreline. Aquatic insects – the mayflies, caddis, and stoneflies so crucial to a trout’s diet – recolonized the gravel beds, and robust hatches resumed, providing a buffet for hungry fish. By 2014 and 2015, anglers could once again witness the evening spectacle of rising trout sipping bugs off the surface. The Bow River, though changed, was very much alive. In fact, some aspects of the fishing even improved: certain runs that had previously been shallow became deeper and more hospitable to fish, yielding surprising new “hot spots” for catching trout. “With the changes in the river, it’s a good opportunity to discover new places to fish along the Bow,” Peterson noted, emphasizing the river’s natural dynamism . Fly-fishers had to adapt to the Bow’s new layout – learning the redesigned riffles, pools, and eddies – but that challenge brought a sense of discovery. The unpredictability of a river is part of its appeal, after all. As Peterson said, “Rivers are naturally dynamic, so to be a good angler you have to work with the river. You can’t expect things to stay the same” . The Bow’s 2013 flood was a dramatic lesson in this truth.

The Bow River Today: A Testament to ResilienceIt’s now been years since that epic flood, and the Bow River has reclaimed its status as one of the world’s great trout streams. If you visit the Bow today, you might hardly guess the violence that once tore through it – except, perhaps, for a newly cut side channel here, or a bank of younger trees there that replaced ones swept away. The river’s trout populations have stabilized and even shown signs of increase in some stretches. Surveys in the downtown Calgary reach still find on the order of 2,500 trout per mile – an astonishing density for an urban river . In the Bow’s classic blue-ribbon section (stretching downstream of Calgary through the prairies), anglers continue to land plump brown trout over 20 inches and feisty rainbows that leap clear of the water. The fish bear a few scars of their trials – one can occasionally spot a healed hook scar on a big rainbow’s jaw, a testament to it having been caught and released multiple times in its life – but they are thriving and wild, descendants of the survivors of 2013. These trout have proven their resilience through floods, droughts, and disease outbreaks. They endure, as long as we safeguard their habitat.
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The legacy of the 2013 flood on the Bow River is twofold. On one hand, it was a sobering reminder of nature’s power, illustrating how quickly decades of human structures (and even some ecological balances) can be upended. It prompted massive investments in flood mitigation and river management to protect communities – new berms, higher dams, floodplains returned to nature – all in hopes of coexisting more safely with the river’s moods. But on the other hand, the flood also highlighted the remarkable resilience of natural systems. Within the chaos was a renewal: the Bow River cleansed and revitalized itself in many ways. Anglers who read the river’s currents today find a mosaic of habitats that likely benefit the ecosystem: deeper holes for fish to hide in during hot summers, newly deposited gravel beds that create spawning grounds for trout and mountain whitefish, and log structures that provide cover. The Bow’s trout, for their part, adapted to the post-flood river and carried on – feeding, growing, spawning the next generation. By 2018, biologists noted strong numbers of young trout, indicating the fishery was replenishing itself despite the setback . Ongoing studies are addressing the remaining challenges (such as ensuring enough big fish survive to older ages), but the river today is still rich with life.

Perhaps most importantly, the 2013 flood instilled a deeper appreciation in the people who know the Bow River. Every time a fly-fisherman steps into the Bow now, there’s a quiet awareness of what the river went through – and a sense of respect. The flood of 2013 made people fall in love with the Bow all over again, in a more profound way: not just as a trout playground, but as a powerful living entity with cycles of wrath and renewal. Anglers swap stories of how their favorite spot “used to be over there before the flood,” then note how they discovered an even better spot later on. There’s a reverence for those trout that survived the flood, and for the river that has carried on.

In the end, the Bow River flood of 2013 was a story of loss and destruction, but also a story of resilience and hope. It changed the river forever – and yet the spirit of the Bow remains. The wild trout still rise eagerly to a well-presented fly on a summer evening, against the backdrop of Calgary’s skyline and the Rocky Mountain sunset. Those trout are living proof that nature can recover when given a chance. As anglers, conservationists, and residents, we are humbled by how quickly things can change, but also encouraged by how well the Bow River has healed. The events of that June will never be forgotten by those who witnessed them. Yet today, when you stand by the Bow and cast your line, you can once again feel that familiar pulse of a healthy river, a river that, despite everything, continues to flow strong and clear, nourishing life and memories for generations to come.

Sources: The factual information and data in this story are supported by official reports and expert observations. Heavy rainfall (200–350 mm) on June 19–21, 2013 combined with alpine snowmelt to trigger the flood . The Bow River’s flow through Calgary peaked around 2,400 m³/s (eight times normal) during the flood , leading to the evacuation of roughly 80,000 people . The flood was the largest since 1897 and caused an estimated $6 billion in damage across southern Alberta . Biologists note that the flood significantly altered river habitat, scouring some areas and creating new ones, but overall fish habitat effects were not entirely negative . Trout Unlimited volunteers rescued thousands of stranded fish from pools as waters receded . Evidence suggests rainbow trout were hit hardest by the flood , though previous floods (like 2005) saw trout populations rebound within a couple of years . In the aftermath, the Bow River remains a productive fishery with about 2,500 trout per mile in the Calgary stretch and a dynamic, resilient ecosystem . The Bow River’s story exemplifies how a wild river and its inhabitants can recover and even thrive after an extreme disturbance, given time and wise stewardship.  

Photo : The Scotiabank Saddledome and surrounding areas in Calgary are submerged by floodwaters on June 21, 2013. Stuart Dryden/Postmedia file
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