Flow report
Wyoming streamflow
Live discharge, gauge height, water temperature, and percent-of-normal readings from every USGS streamgauge in Wyoming. Built for paddlers, anglers, water managers, and flood researchers.
USGS gauges
76
State percent normal
109%
Paddle runs
15
Updated
Jul 21
Open the Wyoming flow layer on the map
Every USGS streamgauge filtered to Wyoming.
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July
21
2026
Flow briefing
Streamflow levels across Wyoming are currently 109% of normal, with the Snake River Ab Reservoir Nr Alpine Wy reporting the highest discharge in the state at 7,500 cfs and a gauge stage of 6.09 ft.
Meanwhile, the Fivemile Creek Near Shoshoni is seeing a spike today — up 13% since yesterday and currently running near peak.
Tap any gauge below for the full hydrograph, paired weather forecast, and historical context. Use the rivers panel to jump into Wyoming's named rivers.
Active weather warnings for Wyoming
# Wyoming Storm Center Report
A Flood Watch remains in effect across much of Wyoming from July 21 through July 23, with the greatest flooding risk Wednesday afternoon through evening. Slow-moving showers and thunderstorms are expected to produce locally heavy rainfall that could trigger flooding in rivers, creeks, streams, and low-lying areas. The watch encompasses numerous regions including areas around Casper, Lander, Cody, Jackson Hole, Rock Springs, and Green River, as well as portions of the Wind River Basin, Bighorn Mountains, and Yellowstone National Park. Residents in these areas should monitor weather conditions closely, avoid flooded roadways, and be prepared for potential flash flooding. For additional safety information, visit weather.gov/safety/flood.
A Flood Watch remains in effect across much of Wyoming from July 21 through July 23, with the greatest flooding risk Wednesday afternoon through evening. Slow-moving showers and thunderstorms are expected to produce locally heavy rainfall that could trigger flooding in rivers, creeks, streams, and low-lying areas. The watch encompasses numerous regions including areas around Casper, Lander, Cody, Jackson Hole, Rock Springs, and Green River, as well as portions of the Wind River Basin, Bighorn Mountains, and Yellowstone National Park. Residents in these areas should monitor weather conditions closely, avoid flooded roadways, and be prepared for potential flash flooding. For additional safety information, visit weather.gov/safety/flood.
Wyoming at a glance
State-wide streamflow overview
The Wyoming flow picture in four data points -- where the state sits versus historical norms, what's flowing hardest, and what's spiking fastest.
Percent of normal
109%
100% is the historical norm. Below 70% indicates drought; above 130% can flag elevated flood risk.
Highest discharge
Snake River Ab Reservoir Nr Alpine Wy
7,500 cfs
Gauge stage 6.09 ft
Biggest 24h spike
Fivemile Creek Near Shoshoni
+13%
Now 280 cfs
Network coverage
Gauges + rivers tracked
76 + 0
USGS gauges feeding 0 named rivers in Wyoming.
Full streamgauge inventory
Wyoming USGS streamgauges
Every USGS gauge Snoflo tracks in Wyoming. Sortable, quickly filterable. Numeric columns heat-mapped from light to deep. Tap any gauge for its full hydrograph and forecast.
| Streamgage | Streamflow | Gage height | Water temp | Air temp | Elevation | Watershed |
|---|---|---|---|---|---|---|
|
Snake River Ab Reservoir Nr Alpine Wy, Wy
9 hours ago · USGS 13022500 |
7,300 cfs | 6.02 ft | 70°F | 61°F | 5,696 ft | Greys-Hobock |
|
Snake River Bl Flat Creek Nr Jackson Wy, Wy
9 hours ago · USGS 13018750 |
7,280 cfs | 4.58 ft | 69°F | 59°F | 5,930 ft | Greys-Hobock |
|
Snake River At Moose, Wy
9 hours ago · USGS 13013650 |
6,300 cfs | 11.46 ft | 67°F | 54°F | 6,443 ft | Snake Headwaters |
|
Snake River Nr Moran Wy, Wy
8 hours ago · USGS 13011000 |
4,990 cfs | 7.26 ft | 67°F | 57°F | 6,732 ft | Snake Headwaters |
|
Yellowstone River At Yellowstone Lk Outlet Ynp, Wy
9 hours ago · USGS 06186500 |
2,550 cfs | 4.84 ft | · | 48°F | 7,731 ft | Yellowstone Headwaters |
|
North Platte River At Orin, Wy
8 hours ago · USGS 06652000 |
2,100 cfs | 4.66 ft | · | 63°F | 4,651 ft | Glendo Reservoir |
|
North Platte River Below Whalen Diversion Dam, Wy
9 hours ago · USGS 06657000 |
1,610 cfs | 6.49 ft | · | 67°F | 4,265 ft | Glendo Reservoir |
|
Green River Near La Barge, Wy
9 hours ago · USGS 09209400 |
1,450 cfs | 5.65 ft | 32°F | 59°F | 6,531 ft | Upper Green |
|
North Fork Shoshone River At Wapiti, Wy
9 hours ago · USGS 06279940 |
1,070 cfs | 4.38 ft | · | 56°F | 5,564 ft | North Fork Shoshone |
|
Green River At Warren Bridge, Wy
9 hours ago · USGS 09188500 |
954 cfs | 2.51 ft | · | 55°F | 7,477 ft | Upper Green |
|
Bighorn River At Kane, Wy
9 hours ago · USGS 06279500 |
946 cfs | 2.03 ft | · | 66°F | 3,642 ft | Big Horn Lake |
|
Wind River Above Red Creek, Wy
9 hours ago · USGS 06220800 |
867 cfs | 3.94 ft | · | 54°F | 6,406 ft | Upper Wind |
|
Bighorn River At Basin, Wy
9 hours ago · USGS 06274300 |
783 cfs | 3.08 ft | · | 65°F | 3,831 ft | Upper Bighorn |
|
Bull Lake Creek Above Bull Lake, Wy
9 hours ago · USGS 06224000 |
773 cfs | 4.13 ft | 48°F | 60°F | 5,889 ft | Upper Wind |
|
New Fork River Near Big Piney, Wy
9 hours ago · USGS 09205000 |
718 cfs | 3.05 ft | 114°F | 57°F | 6,807 ft | Upper Green |
|
Green River Below Fontenelle Reservoir, Wy
9 hours ago · USGS 09211200 |
708 cfs | 11.23 ft | 61°F | 64°F | 6,401 ft | Upper Green-Slate |
|
Buffalo Fork Ab Lava Creek Nr Moran Wy, Wy
9 hours ago · USGS 13011900 |
655 cfs | 2.04 ft | 62°F | 53°F | 6,788 ft | Snake Headwaters |
|
South Fork Shoshone River Ab Buffalo Bill Res, Wy
9 hours ago · USGS 06281000 |
650 cfs | 5.25 ft | · | 60°F | 5,414 ft | South Fork Shoshone |
|
Shoshone River Near Lovell, Wy
9 hours ago · USGS 06285100 |
586 cfs | 4.89 ft | 70°F | 63°F | 3,853 ft | Shoshone |
|
Lamar River Nr Tower Falls Ranger Station Ynp, Wy
9 hours ago · USGS 06188000 |
505 cfs | 1.74 ft | 67°F | 51°F | 6,021 ft | Yellowstone Headwaters |
|
Dinwoody Creek Above Lakes, Wy
9 hours ago · USGS 06221400 |
484 cfs | 3.57 ft | · | 56°F | 6,526 ft | Upper Wind |
|
Green River Near Green River, Wy
9 hours ago · USGS 09217000 |
454 cfs | · | 75°F | 64°F | 6,070 ft | Bitter |
|
Gros Ventre River At Kelly Wy, Wy
9 hours ago · USGS 13014500 |
428 cfs | 4.56 ft | 63°F | 57°F | 6,650 ft | Gros Ventre |
|
Snake River Ab Jackson Lake At Flagg Ranch Wy, Wy
9 hours ago · USGS 13010065 |
418 cfs | 2.72 ft | 69°F | 55°F | 6,818 ft | Snake Headwaters |
|
Fish Creek At Wilson, Wy
9 hours ago · USGS 13016450 |
412 cfs | 3.38 ft | 59°F | 56°F | 6,162 ft | Greys-Hobock |
|
Greys River Ab Reservoir Nr Alpine Wy, Wy
9 hours ago · USGS 13023000 |
403 cfs | 1.63 ft | · | 58°F | 5,704 ft | Greys-Hobock |
|
Wind River Near Kinnear, Wy
9 hours ago · USGS 06227600 |
378 cfs | 3.53 ft | 35°F | 64°F | 5,287 ft | Upper Wind |
|
Wind River Ab Boysen Reservoir, Wy
9 hours ago · USGS 06236100 |
356 cfs | 2.19 ft | 77°F | 69°F | 4,772 ft | Upper Wind |
|
Pine Creek Above Fremont Lake, Wy
8 hours ago · USGS 09196500 |
322 cfs | 3.68 ft | 62°F | 61°F | 7,460 ft | New Fork |
|
Salt River Ab Reservoir Nr Etna Wy, Wy
9 hours ago · USGS 13027500 |
322 cfs | 1.71 ft | · | 56°F | 5,694 ft | Salt |
|
Fivemile Creek Near Shoshoni, Wy
9 hours ago · USGS 06253000 |
248 cfs | 3.12 ft | 71°F | 68°F | 4,766 ft | Lower Wind |
|
Little Wind River Near Riverton, Wy
9 hours ago · USGS 06235500 |
235 cfs | 2.27 ft | · | 64°F | 4,913 ft | Little Wind |
|
Flat Creek Bel Cache Creek, Wy
10 hours ago · USGS 13018350 |
220 cfs | 2.49 ft | 71°F | 55°F | 6,130 ft | Greys-Hobock |
|
Firehole River Near West Yellowstone Mt, Wy
9 hours ago · USGS 06036905 |
208 cfs | 2.93 ft | 78°F | 47°F | 7,070 ft | Madison |
|
Sf L Wind Riv Ab Washakie Res, Wy
9 hours ago · USGS 06228350 |
160 cfs | 3.36 ft | · | 60°F | 6,406 ft | Little Wind |
|
Blacks Fork Near Millburne, Wy
9 hours ago · USGS 09218500 |
159 cfs | 2.91 ft | · | 53°F | 8,509 ft | Blacks Fork |
|
Wind River Near Dubois, Wy
9 hours ago · USGS 06218500 |
146 cfs | 2.62 ft | · | 53°F | 7,204 ft | Upper Wind |
|
Gros Ventre River At Zenith Wy, Wy
9 hours ago · USGS 13015000 |
129 cfs | 18.29 ft | · | 55°F | 6,318 ft | Gros Ventre |
|
Smiths Fork Near Border, Wy
9 hours ago · USGS 10032000 |
119 cfs | 1.36 ft | · | 63°F | 6,710 ft | Central Bear |
|
Big Sandy River Near Farson, Wy
9 hours ago · USGS 09213500 |
103 cfs | 3.95 ft | · | 63°F | 6,774 ft | Big Sandy |
|
Bear River Below Smiths Fork, Wy
9 hours ago · USGS 10038000 |
97 cfs | 2.46 ft | · | 56°F | 6,134 ft | Central Bear |
|
Gibbon River At Madison Jct, Wy
9 hours ago · USGS 06037100 |
90 cfs | 4.71 ft | 72°F | 50°F | 6,801 ft | Madison |
|
N Platte Riv Ab Seminoe Reservoir, Wy
8 hours ago · USGS 06630000 |
88 cfs | 2.31 ft | · | 64°F | 6,416 ft | Upper North Platte |
|
Pacific Creek At Moran Wy, Wy
9 hours ago · USGS 13011500 |
83 cfs | 4.47 ft | 64°F | 56°F | 6,734 ft | Snake Headwaters |
|
Bear River At Evanston, Wy
9 hours ago · USGS 10016900 |
75 cfs | 1.05 ft | · | 56°F | 6,740 ft | Upper Bear |
|
Bear River Below Reservoir, Wy
9 hours ago · USGS 10020300 |
70 cfs | 3.05 ft | · | 59°F | 6,409 ft | Upper Bear |
|
Granite C Ab Granite C Supplemental, Wy
9 hours ago · USGS 13016305 |
65 cfs | 4.15 ft | · | 58°F | 6,404 ft | Greys-Hobock |
|
Clear Creek Near Buffalo, Wy
9 hours ago · USGS 06318500 |
58 cfs | 1.90 ft | · | 64°F | 5,204 ft | Clear |
|
Bear River Above Reservoir, Wy
9 hours ago · USGS 10020100 |
55 cfs | 1.07 ft | · | 59°F | 6,465 ft | Upper Bear |
|
Wind River At Riverton, Wy
9 hours ago · USGS 06228000 |
48 cfs | 2.29 ft | · | 64°F | 4,914 ft | Upper Wind |
|
East Fork Of Smiths Fork Near Robertson, Wy
9 hours ago · USGS 09220000 |
39 cfs | 4.06 ft | · | 63°F | 8,475 ft | Blacks Fork |
|
Hams Fork Below Pole Creek, Wy
9 hours ago · USGS 09223000 |
35 cfs | 2.94 ft | · | 58°F | 7,462 ft | Blacks Fork |
|
Encampment River Ab Hog Park Cr, Wy
9 hours ago · USGS 06623800 |
34 cfs | 1.17 ft | 60°F | 51°F | 8,293 ft | Upper North Platte |
|
Fontenelle C Nr Herschler Ranch, Wy
9 hours ago · USGS 09210500 |
30 cfs | 5.21 ft | · | 60°F | 6,935 ft | Upper Green |
|
Laramie River Near Fort Laramie, Wy
9 hours ago · USGS 06670500 |
30 cfs | 2.17 ft | 46°F | 66°F | 4,226 ft | Middle North Platte-Scotts Bluff |
|
Crow C Nr Fairview Wyo, Wy
8 hours ago · USGS 13025500 |
28 cfs | 2.06 ft | · | 56°F | 6,216 ft | Salt |
|
Rock Creek Ab King Canyon Canal, Wy
9 hours ago · USGS 06632400 |
26 cfs | 1.23 ft | · | 61°F | 7,795 ft | Medicine Bow |
|
Boiling River At Mammoth, Wy
9 hours ago · USGS 06190540 |
22 cfs | 1.10 ft | 129°F | 56°F | 5,672 ft | Yellowstone Headwaters |
|
Cache Creek Near Jackson, Wy
9 hours ago · USGS 13018300 |
15 cfs | 3.59 ft | 50°F | 60°F | 6,774 ft | Greys-Hobock |
|
Sweetwater River Near Sweetwater Station, Wy
9 hours ago · USGS 06638090 |
15 cfs | 1.44 ft | · | 63°F | 6,593 ft | Sweetwater |
|
Encampment River At Mouth, Wy
9 hours ago · USGS 06625000 |
10 cfs | 1.37 ft | · | 57°F | 6,973 ft | Upper North Platte |
|
Henrys Fork Near Manila, Wy
9 hours ago · USGS 09229500 |
10 cfs | 6.06 ft | · | 58°F | 6,071 ft | Upper Green-Flaming Gorge Reservoir |
|
North Brush Creek Near Saratoga, Wy
9 hours ago · USGS 06622700 |
8 cfs | 1.91 ft | · | 58°F | 8,074 ft | Upper North Platte |
|
Laramie River At Laramie, Wy
9 hours ago · USGS 06660000 |
7 cfs | 3.30 ft | · | 57°F | 7,128 ft | Upper Laramie |
|
Little Snake River Near Dixon, Wy
9 hours ago · USGS 09257000 |
7 cfs | 2.07 ft | · | 56°F | 6,342 ft | Little Snake |
|
Powder River At Arvada, Wy
9 hours ago · USGS 06317000 |
7 cfs | 1.46 ft | · | 63°F | 3,622 ft | Upper Powder |
|
Muddy Creek Below Young Draw, Wy
9 hours ago · USGS 09258980 |
5 cfs | 2.31 ft | 74°F | 59°F | 6,273 ft | Muddy |
|
Middle Fork Powder River Near Barnum, Wy
9 hours ago · USGS 06309200 |
4 cfs | 4.93 ft | · | 56°F | 7,233 ft | Middle Fork Powder |
|
Medicine Bow R Ab Seminoe Reservoir, Wy
8 hours ago · USGS 06635000 |
3 cfs | 1.77 ft | · | 59°F | 6,430 ft | Medicine Bow |
|
Tantalus Creek At Norris Junction, Wy
9 hours ago · USGS 06036940 |
3 cfs | 1.44 ft | 83°F | 49°F | 7,547 ft | Madison |
|
L Medicine Bow R At Boles Spring, Wy
9 hours ago · USGS 06634620 |
1 cfs | · | · | 58°F | 6,570 ft | Little Medicine Bow |
|
Bear River Below Pixley Dam, Wy
9 hours ago · USGS 10028500 |
1 cfs | · | · | 58°F | 6,182 ft | Central Bear |
|
Deer Creek In Canyon, Wy
9 hours ago · USGS 06646000 |
1 cfs | 1.67 ft | · | 67°F | 5,651 ft | Middle North Platte-Casper |
|
Belle Fourche River Below Moorcroft, Wy
9 hours ago · USGS 06426500 |
0 cfs | · | · | 61°F | 4,101 ft | Upper Belle Fourche |
|
Cheyenne River Near Spencer, Wy
9 hours ago · USGS 06386500 |
0 cfs | 3.39 ft | · | 66°F | 3,582 ft | Angostura Reservoir |
|
Blacks Fork Near Little America, Wy
9 hours ago · USGS 09224700 |
0 cfs | 2.61 ft | · | 65°F | 6,136 ft | Blacks Fork |
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Whitewater & paddle
Wyoming river runs
Paddleable river sections in Wyoming keyed to USGS gauges, with live streamflow and whitewater class.
| River run | Status | Streamflow | Air temp | Class |
|---|---|---|---|---|
| 1st Gorge Lime | · | · | 40°F | IV+ TO V |
| Alpine Canyon (West Table To Sheep Gulch) | Runnable | 817 cfs | 48°F | III- TO III+ |
| Astoria To West Table | Runnable | 817 cfs | 48°F | I TO II |
| Canyon | · | 26 cfs | 70°F | I |
| Cave Falls Run | Runnable | 265 cfs | 51°F | III TO III+ |
| Granite Creek | Too High | 67 cfs | 46°F | II TO III |
| Hoback Canyon | · | · | 38°F | II TO III+ |
| Lower Greys (Squaw Creek To Bridge Campground) | Runnable | 350 cfs | 47°F | III+ TO V- |
| Narrows | Runnable | 890 cfs | 44°F | III- TO III+ |
| Northgate Canyon | Runnable | 142 cfs | 61°F | III- TO III+ |
| Upper Boxelder Canyon | Runnable | 215 cfs | 74°F | V |
| Upper Greys (Lynx Creek To Little Greys) | Runnable | 350 cfs | 47°F | II TO IV+ |
| Upper Greys (Murphy Creek Bridge To Lynx Creek Campground) | Runnable | 350 cfs | 47°F | II TO II+ |
| Upper Greys (Murphy Creek Bridge To Lynx Creek Campground) | Runnable | 350 cfs | 47°F | II TO II+ |
| Wedding Of The Waters | Too High | 4,350 cfs | 89°F | I |
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Flow report FAQ
About Wyoming streamflow
Where does the Wyoming streamflow data come from?
The U.S. Geological Survey National Water Information System. USGS streamgauges report continuously (every 15 minutes) and the data is the canonical real-time record for U.S. rivers. Snoflo pulls the latest readings and joins them to a 7-day NOAA weather forecast for each station.
What is cfs?
Cubic feet per second — the standard unit for streamflow. One cfs is about 7.5 gallons per second. Small creeks run at single-digit cfs; the Mississippi at hundreds of thousands.
What does Gauge Height mean?
The water level at the gauge in feet above the reference datum. Used together with discharge to track river state. Flood stage and runnable levels are typically expressed in gauge height (e.g., "flood at 16 ft").
How fresh is the Wyoming data?
USGS streamgauges report every 15 minutes; Snoflo re-pulls throughout the day. The AI briefing regenerates daily.
Can I get a flow alert for a Wyoming gauge?
Yes. Save any USGS gauge as a favorite in the Snoflo iOS app, set a discharge or stage threshold (e.g. "alert me when discharge crosses 2,000 cfs"), and you'll get a push the moment it crosses.
Is this a substitute for an NWS flood warning?
No. Snoflo is informational. For flood life-safety decisions always follow guidance from your local NWS forecast office and state emergency management. Snoflo data is one input among several.
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