Wyoming fishing reports
59 reports for Wyoming — what's biting, water temps, and where to focus.
Snake and Yellowstone hit peak runoff — edge-water cutthroat are the play
The USGS gauge at site 06192500 recorded 8,020 cfs and 46°F early on May 17 — classic peak-runoff signals that tell Yellowstone and Snake River anglers to abandon mid-river wading and work the slower margins. Water this cold and fast pushes trout into slack-water edges, behind boulders, and along undercut banks where they can hold without burning calories. Hatch Magazine's recent piece on Yellowstone caddis emergences is worth bookmarking now: salmonfly and early caddis activity will ramp up once flows ease and surface temps climb past 50°F, likely another two to three weeks out. Flylords Mag notes the Rockies entered spring with below-average snowpack, suggesting this runoff pulse could recede faster than typical — tightening the window but also potentially accelerating the season. Heavy beadhead nymphs and streamers stripped tight to the bank are the play right now. Anglers accessing backcountry water should note that Outdoor Hub is reporting a recent grizzly attack in Yellowstone National Park; carry bear spray.
Wyoming rivers entering May runoff — streamers and nymphs near the banks
Flylords Mag reported this week that nearly half the United States — the Rockies among the hardest-hit zones — is experiencing severe drought, a signal that Wyoming's spring snowpack has trailed historical averages. USGS gauge 06259000 returned no real-time readings at report time, so confirmed flow and temperature data for the Wind River and North Platte drainages are unavailable. Working from seasonal patterns and the regional drought picture, rivers in this corridor are likely in the midst of their May runoff pulse — potentially compressed relative to a high-snow year. Trout will be stacked in slower, oxygenated water: behind boulders, along undercut banks, and in the seams at the edge of fast current. Caddis emergences are typical across Wyoming's mountain rivers in this window, and Hatch Magazine's close coverage of Yellowstone-area hatches signals that insects are beginning to move. Verify flows before wading and plan for off-color water.
Caddis hatches fire on Yellowstone and Teton waters ahead of peak runoff
At 50°F water and 9,130 cfs on the Yellowstone drainage (USGS gauge 06192500, May 12), these western Wyoming rivers sit in a narrow productive window before peak snowmelt locks anglers out for weeks. Flylords Mag captures the mid-May mood across mountain trout country precisely: 'there's this frenzied energy in the air, this mad dash in trout towns all over the country — get to the rivers and fish them hard before runoff hits.' The Mother's Day Caddis hatch is at or near its peak right now, and Hatch Magazine's feature on caddis emergences references the Yellowstone hatch calendar directly — a reminder that mid-May is when caddis activity defines the bite on these waters. Cutthroat, brown, and rainbow trout are all feeding actively at 50°F. Target the softer seams and bankside slack water as main-channel flows run elevated; soft-hackle wets and emerging caddis patterns fished in the film are the technique of the moment.
Pre-runoff window narrows on Yellowstone and Snake as spring flows build
Water temp logged 52°F on the Yellowstone drainage at USGS gauge 06192500 early Tuesday, with flow running at 7,150 cfs — strong spring runoff signaling the pre-peak window is open but closing. Flylords Mag frames the moment precisely: "The Mother's Day Caddis Hatch is the unofficial kickoff of the best of pre-runoff fishing, when every day might be your last on the creek for as long as a month, depending on how the snow melts." On the main Yellowstone and Snake, these flows push cutthroat and brown trout tight to bank seams, slack-water pockets, and tributary mouths. Hatch Magazine's coverage of caddis emergences — explicitly referencing the Yellowstone Hatches context — suggests bug activity is beginning to fire even as mainstem conditions get big and fast. Heavy nymphing with stonefly patterns, streamers swung along grassy cutbanks, and any afternoon caddis window are the plays right now.
Cutthroats hold in the margins as Yellowstone and Snake surge into peak runoff
USGS gauge 06192500 put the Yellowstone River at 7,840 cfs and 55°F on May 11 — a full-bore runoff push that's turning main-stem fishing into a patience game. Flylords Mag frames the moment well this week: 'get to the rivers and fish them hard, before runoff hits and we're confined to lakes until the end of June,' calling the Mother's Day Caddis Hatch the unofficial last call before big water locks down access. That window has effectively closed on the main Yellowstone and Snake River corridors. However, 55°F is genuinely good trout water; the fight is clarity, not temperature. Hatch Magazine's current caddis-emergence coverage — drawing on John Juracek's research in 'Fishing Yellowstone Hatches' — suggests that bug life is active for anglers who can find spring creeks, side channels, or tributary streams with manageable visibility. Tuck away the big-water gear for main-stem inside seams and save dry-dropper setups for tributary pocket water.
North Platte tailwaters anchor the bite as Wind River runoff begins
Flylords Mag captures the mid-May mood across Western trout country precisely: 'There's this frenzied energy in the air, this mad dash in trout towns all over the country — get to the rivers, and fish them hard, before runoff hits.' That window is now open — and narrowing — on Wyoming's Wind River and North Platte drainages. USGS gauge 06259000 returned no live reading at press time, so current flows are unconfirmed; verify conditions at USGS WaterWatch before committing to any freestone reach. The tailwater sections of the North Platte, buffered by reservoir releases, remain the most reliable anchors when freestone tributaries blow out with snowmelt. Hatch Magazine notes caddis emergences are building across western fisheries, a pattern consistent with what North Platte canyon anglers typically find in May. Nymphing caddis pupae and small midges is the core technique when visibility tightens on rising water. No region-specific charter or shop intel was available this cycle; conditions below are grounded in seasonal norms.
Tetons Cutthroat Season Builds as Late-May Yellowstone Opening Approaches
Hatch Magazine's coverage of Yellowstone caddis emergences is the strongest regional signal available in current feeds — no Wyoming gauge readings or on-the-water dispatches appeared this week. The seasonal picture is consistent regardless: mid-May on the Yellowstone plateau and in the Teton Range is peak snowmelt runoff, with the Snake River and its tributaries typically running high and off-color. Wade access is limited right now, and weighted nymphs fished tight to slower seams are the practical option for any windows the conditions offer. Caddis hatches in this corridor traditionally begin firing in the final weeks of May, per Hatch Magazine's Yellowstone hatch framing; Flylab contributor John Juracek writes about encountering prime conditions on the Madison in June — a calendar that tracks with the post-runoff window most Yellowstone-area anglers plan around. Most Yellowstone National Park trout waters typically reopen the final Saturday of May — verify current NPS regulations before any trip.
Cutthroat and browns active ahead of peak runoff on Yellowstone and upper Snake
Water temperature at 55°F and flows running at 6,400 cfs (USGS gauge 06192500) mark a textbook pre-runoff window across the Yellowstone and upper Snake drainages. At 55°F, cutthroat and brown trout are feeding actively ahead of the snowmelt surge that typically pushes flows higher through late May. Hatch Magazine's fly fishing caddis emergence feature — built on John Juracek's Yellowstone hatch research — points to early caddis and stonefly activity beginning to build on these rivers right now, making subsurface nymph presentations the primary approach with attractor dries worth testing during calm midday windows. MidCurrent's recent tying roundup covering patterns from the subsurface film to open water offers a useful fly-box checklist: midge clusters, BWOs, and emerging caddis pupae in sizes 16–18 are the building blocks for the weeks ahead. At 6,400 cfs, wade access is demanding on main channels — a drift boat opens significantly more productive water, particularly the slower edge seams where fish stack in elevated flows.
North Platte tailwaters offer the best window as Wind River snowmelt ramps
MidCurrent's nymph tying roundup this week identified midge and jig-nymph patterns as the go-to for clear, pressured tailrace water — language that maps directly onto Wyoming's North Platte tailwater fisheries, where subsurface techniques are the reliable early-May play while freestone Wind River drainages manage their annual snowmelt surge. USGS gauge 06259000 returned no reading at this report's publication, so current North Platte flow and temperature remain unconfirmed; pull the latest figures before heading out. Hatch Magazine's recent deep-dive on caddis emergences is a timely prompt: once water temps climb into the mid-50s°F range on Wyoming tailwaters, the first caddis flights typically begin, and May is historically when they arrive. That emergence window — running alongside lingering midge and BWO activity — is the signal to watch for right now. Until it fires consistently, smaller nymphs fished through the seams and slower tailouts offer the most dependable action. Verify access and open seasons through state resources before heading out.
Snake River Cutthroat Running High as Teton Snowmelt Peaks
USGS gauge 06192500 measured 5,750 cfs and 48°F on the Snake River at Moran early this morning — classic mid-May runoff territory for the Teton country. Flows are elevated well above base levels as high-country snowpack breaks down into the drainage, pushing fast, cold water through the main stem. No local tackle shop or charter reports surfaced in this week's intel feeds to pin down exactly what's biting where, but at 48°F and flows this robust, Snake River fine-spotted cutthroat will be holding tight to the softer water: behind large boulders, along undercut banks, and in any braided side channel offering relief from the main current push. Hatch Magazine notes that caddis emergence timing is foundational to Yellowstone-watershed trout success; early caddis and midge patterns are seasonally on point as water temperatures creep toward the 50°F mark. Pack a sturdy wading staff and fish the margins.
Spring Runoff Builds on Yellowstone & Snake
USGS gauge 06192500 recorded 4,150 cfs and 50°F water on the Yellowstone drainage at the May 7 morning read — an early-runoff snapshot that puts fly anglers squarely in the pre-peak window. Hatch Magazine notes that caddis emergences rank among the most consequential early-season events on Yellowstone-area waters, with hatch knowledge directly driving surface-fishing success. Flylab (Substack) contributor John Juracek, reflecting on Madison River conditions adjacent to Yellowstone, observes that spring-fed drainages can hold quality dry-fly fishing before main-stem flows color up entirely. At 50°F, cutthroat and brown trout are feeding actively in current seams and soft edges. Nymphing sub-surface caddis and midge patterns is the most reliable approach right now, with afternoon caddis emerger dries worth rigging as a second weapon during the 1–4 p.m. warming window. Anglers should expect progressively off-color water in main-stem reaches as snowpack melt intensifies. Species activity levels below reflect seasonal norms for early May; no local guide or shop intel confirmed specific bite conditions this cycle.
Peak Runoff on Tap: Wind River & North Platte Trout Push to Edge Water
Hatch Magazine's recent deep-dive on caddis emergences — noting that even in runoff years, caddis activity accelerates once water temps breach the mid-40s°F threshold — is the most relevant signal in this week's angler-intel feeds for Wyoming's Wind River and North Platte drainages. USGS gauge 06259000 returned no flow or temperature readings at report time, leaving current conditions unconfirmed. Early May sits squarely in Wyoming's peak runoff window, when snowmelt from the Wind River Range typically colors main-stem flows and pushes trout into slower edge water and tributary mouths. Field & Stream's early-season spring primer cautions that cold, off-color water steers fish away from mid-channel riffles and toward deeper, slower lies — consistent with typical North Platte tailwater behavior at this stage. No Wyoming-specific shop or charter reports were available this cycle; species statuses below reflect seasonal defaults rather than confirmed angler reports. Confirm river conditions locally before committing to a wade or float trip.