Wyoming River Levels & Streamflow
As of Aug 2, 2026, Wyoming rivers are running at 114% of normal across 76 USGS gauges — the highest is 6,960 cfs on the Snake River Ab Reservoir Nr Alpine Wy. Live discharge, gauge height, and percent-of-normal for every USGS streamgauge in Wyoming.
Streamflow levels across Wyoming are currently 114% of normal, with the Snake River Ab Reservoir Nr Alpine Wy reporting the highest discharge in the state at 6,960 cfs and a gauge stage of 5.69 ft.
Meanwhile, the Green River Below Fontenelle Reservoir 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 is currently experiencing a critical combination of extreme heat and dangerous fire conditions across multiple regions. Red Flag Warnings remain in effect through August 3rd for central, north-central, southwest, and west-central Wyoming, affecting counties including Fremont, Natrona, Big Horn, Hot Springs, Johnson, Park, Washakie, Sweetwater, Uinta, Lincoln, and Sublette. Residents in Casper, Riverton, Lander, and surrounding areas should prepare for temperatures reaching 95-105°F with critically low humidity levels (5-15%) and gusty winds up to 35 mph—conditions that will cause any fires to spread rapidly and unpredictably. Heat Advisories are in effect through this evening, with heat-related illness risks elevated. Outdoor burning is strongly discouraged, and residents should take precautions against extreme heat while remaining vigilant for potential wildfires in their communities.
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
100% is the historical norm. Below 70% indicates drought; above 130% can flag elevated flood risk.
Highest discharge
Gauge stage 5.69 ft
Biggest 24h spike
Now 725 cfs
Network coverage
USGS gauges feeding 0 named rivers in Wyoming.
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
12 hours ago · USGS 13022500 |
6,840 cfs | 5.64 ft | 67°F | 53°F | 5,696 ft | Greys-Hobock |
|
Snake River Bl Flat Creek Nr Jackson Wy, Wy
12 hours ago · USGS 13018750 |
6,360 cfs | 4.26 ft | 66°F | 53°F | 5,930 ft | Greys-Hobock |
|
Snake River At Moose, Wy
13 hours ago · USGS 13013650 |
5,780 cfs | 11.27 ft | 65°F | 52°F | 6,443 ft | Snake Headwaters |
|
Snake River Nr Moran Wy, Wy
12 hours ago · USGS 13011000 |
4,940 cfs | 7.20 ft | 66°F | 50°F | 6,732 ft | Snake Headwaters |
|
Yellowstone River At Yellowstone Lk Outlet Ynp, Wy
12 hours ago · USGS 06186500 |
2,130 cfs | 4.51 ft | · | 50°F | 7,731 ft | Yellowstone Headwaters |
|
North Platte River Below Whalen Diversion Dam, Wy
13 hours ago · USGS 06657000 |
1,720 cfs | 6.57 ft | · | 65°F | 4,265 ft | Glendo Reservoir |
|
Green River Near La Barge, Wy
13 hours ago · USGS 09209400 |
1,100 cfs | 5.34 ft | 32°F | 53°F | 6,531 ft | Upper Green |
|
North Platte River At Orin, Wy
12 hours ago · USGS 06652000 |
743 cfs | 3.69 ft | · | 63°F | 4,651 ft | Glendo Reservoir |
|
Green River Below Fontenelle Reservoir, Wy
13 hours ago · USGS 09211200 |
716 cfs | 11.16 ft | 60°F | 54°F | 6,401 ft | Upper Green-Slate |
|
Bighorn River At Kane, Wy
12 hours ago · USGS 06279500 |
701 cfs | 1.77 ft | · | 68°F | 3,642 ft | Big Horn Lake |
|
Shoshone River Near Lovell, Wy
13 hours ago · USGS 06285100 |
646 cfs | 5.00 ft | 71°F | 64°F | 3,853 ft | Shoshone |
|
Wind River Above Red Creek, Wy
12 hours ago · USGS 06220800 |
614 cfs | 3.54 ft | · | 55°F | 6,406 ft | Upper Wind |
|
New Fork River Near Big Piney, Wy
13 hours ago · USGS 09205000 |
556 cfs | 2.95 ft | 114°F | 50°F | 6,807 ft | Upper Green |
|
Bighorn River At Basin, Wy
12 hours ago · USGS 06274300 |
549 cfs | 2.78 ft | · | 62°F | 3,831 ft | Upper Bighorn |
|
North Fork Shoshone River At Wapiti, Wy
12 hours ago · USGS 06279940 |
542 cfs | 3.80 ft | · | 62°F | 5,564 ft | North Fork Shoshone |
|
Bull Lake Creek Above Bull Lake, Wy
12 hours ago · USGS 06224000 |
480 cfs | 3.56 ft | 48°F | 64°F | 5,889 ft | Upper Wind |
|
Buffalo Fork Ab Lava Creek Nr Moran Wy, Wy
12 hours ago · USGS 13011900 |
403 cfs | 1.51 ft | 61°F | 51°F | 6,788 ft | Snake Headwaters |
|
Green River At Warren Bridge, Wy
12 hours ago · USGS 09188500 |
402 cfs | 2.06 ft | · | 50°F | 7,477 ft | Upper Green |
|
Dinwoody Creek Above Lakes, Wy
12 hours ago · USGS 06221400 |
388 cfs | 3.44 ft | · | 59°F | 6,526 ft | Upper Wind |
|
Wind River Near Kinnear, Wy
13 hours ago · USGS 06227600 |
378 cfs | 3.53 ft | 35°F | 61°F | 5,287 ft | Upper Wind |
|
Fish Creek At Wilson, Wy
13 hours ago · USGS 13016450 |
371 cfs | 3.24 ft | 58°F | 53°F | 6,162 ft | Greys-Hobock |
|
Greys River Ab Reservoir Nr Alpine Wy, Wy
12 hours ago · USGS 13023000 |
355 cfs | 1.54 ft | · | 54°F | 5,704 ft | Greys-Hobock |
|
Salt River Ab Reservoir Nr Etna Wy, Wy
12 hours ago · USGS 13027500 |
328 cfs | 1.72 ft | · | 52°F | 5,694 ft | Salt |
|
Snake River Ab Jackson Lake At Flagg Ranch Wy, Wy
12 hours ago · USGS 13010065 |
325 cfs | 2.51 ft | 67°F | 51°F | 6,818 ft | Snake Headwaters |
|
Gros Ventre River At Kelly Wy, Wy
13 hours ago · USGS 13014500 |
293 cfs | 4.25 ft | 60°F | 56°F | 6,650 ft | Gros Ventre |
|
Wind River Ab Boysen Reservoir, Wy
12 hours ago · USGS 06236100 |
289 cfs | 2.05 ft | 77°F | 64°F | 4,772 ft | Upper Wind |
|
Lamar River Nr Tower Falls Ranger Station Ynp, Wy
12 hours ago · USGS 06188000 |
276 cfs | 1.37 ft | 67°F | 50°F | 6,021 ft | Yellowstone Headwaters |
|
Fivemile Creek Near Shoshoni, Wy
13 hours ago · USGS 06253000 |
272 cfs | 3.21 ft | 70°F | 63°F | 4,766 ft | Lower Wind |
|
Little Wind River Near Riverton, Wy
12 hours ago · USGS 06235500 |
254 cfs | 2.33 ft | · | 61°F | 4,913 ft | Little Wind |
|
Green River Near Green River, Wy
1 day ago · USGS 09217000 |
254 cfs | · | 75°F | 61°F | 6,070 ft | Bitter |
|
South Fork Shoshone River Ab Buffalo Bill Res, Wy
13 hours ago · USGS 06281000 |
228 cfs | 4.62 ft | · | 65°F | 5,414 ft | South Fork Shoshone |
|
Firehole River Near West Yellowstone Mt, Wy
13 hours ago · USGS 06036905 |
198 cfs | 2.89 ft | 73°F | 47°F | 7,070 ft | Madison |
|
Pine Creek Above Fremont Lake, Wy
12 hours ago · USGS 09196500 |
166 cfs | 3.29 ft | 61°F | 60°F | 7,460 ft | New Fork |
|
Flat Creek Bel Cache Creek, Wy
12 hours ago · USGS 13018350 |
160 cfs | 2.24 ft | 65°F | 53°F | 6,130 ft | Greys-Hobock |
|
N Platte Riv Ab Seminoe Reservoir, Wy
12 hours ago · USGS 06630000 |
158 cfs | 2.84 ft | · | 59°F | 6,416 ft | Upper North Platte |
|
Wind River Near Dubois, Wy
12 hours ago · USGS 06218500 |
128 cfs | 2.54 ft | · | 53°F | 7,204 ft | Upper Wind |
|
Bear River Below Smiths Fork, Wy
12 hours ago · USGS 10038000 |
102 cfs | 2.48 ft | · | 52°F | 6,134 ft | Central Bear |
|
Smiths Fork Near Border, Wy
12 hours ago · USGS 10032000 |
101 cfs | 1.27 ft | · | 60°F | 6,710 ft | Central Bear |
|
Sf L Wind Riv Ab Washakie Res, Wy
12 hours ago · USGS 06228350 |
100 cfs | 3.01 ft | · | 65°F | 6,406 ft | Little Wind |
|
Gibbon River At Madison Jct, Wy
13 hours ago · USGS 06037100 |
88 cfs | 4.70 ft | 69°F | 49°F | 6,801 ft | Madison |
|
Blacks Fork Near Millburne, Wy
12 hours ago · USGS 09218500 |
86 cfs | 2.55 ft | · | 58°F | 8,509 ft | Blacks Fork |
|
Wind River At Riverton, Wy
13 hours ago · USGS 06228000 |
68 cfs | 2.45 ft | · | 61°F | 4,914 ft | Upper Wind |
|
Pacific Creek At Moran Wy, Wy
12 hours ago · USGS 13011500 |
66 cfs | 4.33 ft | 62°F | 50°F | 6,734 ft | Snake Headwaters |
|
Gros Ventre River At Zenith Wy, Wy
12 hours ago · USGS 13015000 |
65 cfs | 18.04 ft | · | 51°F | 6,318 ft | Gros Ventre |
|
Big Sandy River Near Farson, Wy
13 hours ago · USGS 09213500 |
46 cfs | 3.74 ft | · | 54°F | 6,774 ft | Big Sandy |
|
Granite C Ab Granite C Supplemental, Wy
13 hours ago · USGS 13016305 |
43 cfs | 3.94 ft | · | 55°F | 6,404 ft | Greys-Hobock |
|
Bear River At Evanston, Wy
13 hours ago · USGS 10016900 |
40 cfs | · | · | 54°F | 6,740 ft | Upper Bear |
|
Clear Creek Near Buffalo, Wy
13 hours ago · USGS 06318500 |
39 cfs | 1.72 ft | · | 69°F | 5,204 ft | Clear |
|
Laramie River At Laramie, Wy
13 hours ago · USGS 06660000 |
34 cfs | 3.72 ft | · | 57°F | 7,128 ft | Upper Laramie |
|
East Fork Of Smiths Fork Near Robertson, Wy
12 hours ago · USGS 09220000 |
31 cfs | 3.94 ft | · | 60°F | 8,475 ft | Blacks Fork |
|
Laramie River Near Fort Laramie, Wy
13 hours ago · USGS 06670500 |
28 cfs | 2.15 ft | 46°F | 65°F | 4,226 ft | Middle North Platte-Scotts Bluff |
|
Encampment River Ab Hog Park Cr, Wy
12 hours ago · USGS 06623800 |
26 cfs | 1.05 ft | 58°F | 51°F | 8,293 ft | Upper North Platte |
|
Hams Fork Below Pole Creek, Wy
12 hours ago · USGS 09223000 |
25 cfs | 2.83 ft | · | 55°F | 7,462 ft | Blacks Fork |
|
Crow C Nr Fairview Wyo, Wy
12 hours ago · USGS 13025500 |
25 cfs | 2.01 ft | · | 55°F | 6,216 ft | Salt |
|
Fontenelle C Nr Herschler Ranch, Wy
12 hours ago · USGS 09210500 |
25 cfs | 5.14 ft | · | 57°F | 6,935 ft | Upper Green |
|
Blacks Fork Near Little America, Wy
13 hours ago · USGS 09224700 |
25 cfs | 2.95 ft | · | 57°F | 6,136 ft | Blacks Fork |
|
Rock Creek Ab King Canyon Canal, Wy
12 hours ago · USGS 06632400 |
24 cfs | 1.20 ft | · | 66°F | 7,795 ft | Medicine Bow |
|
Boiling River At Mammoth, Wy
12 hours ago · USGS 06190540 |
22 cfs | 1.11 ft | 128°F | 57°F | 5,672 ft | Yellowstone Headwaters |
|
Bear River Below Reservoir, Wy
12 hours ago · USGS 10020300 |
18 cfs | 2.42 ft | · | 55°F | 6,409 ft | Upper Bear |
|
Encampment River At Mouth, Wy
12 hours ago · USGS 06625000 |
14 cfs | 1.45 ft | · | 55°F | 6,973 ft | Upper North Platte |
|
Henrys Fork Near Manila, Wy
12 hours ago · USGS 09229500 |
12 cfs | 6.11 ft | · | 57°F | 6,071 ft | Upper Green-Flaming Gorge Reservoir |
|
Cache Creek Near Jackson, Wy
12 hours ago · USGS 13018300 |
11 cfs | 3.51 ft | 49°F | 57°F | 6,774 ft | Greys-Hobock |
|
Sweetwater River Near Sweetwater Station, Wy
12 hours ago · USGS 06638090 |
9 cfs | 1.34 ft | · | 62°F | 6,593 ft | Sweetwater |
|
Bear River Above Reservoir, Wy
12 hours ago · USGS 10020100 |
9 cfs | · | · | 56°F | 6,465 ft | Upper Bear |
|
North Brush Creek Near Saratoga, Wy
12 hours ago · USGS 06622700 |
7 cfs | 1.87 ft | · | 60°F | 8,074 ft | Upper North Platte |
|
Medicine Bow R Ab Seminoe Reservoir, Wy
12 hours ago · USGS 06635000 |
4 cfs | 1.85 ft | · | 59°F | 6,430 ft | Medicine Bow |
|
Middle Fork Powder River Near Barnum, Wy
13 hours ago · USGS 06309200 |
4 cfs | 4.92 ft | · | 60°F | 7,233 ft | Middle Fork Powder |
|
Tantalus Creek At Norris Junction, Wy
12 hours ago · USGS 06036940 |
3 cfs | 1.41 ft | 80°F | 50°F | 7,547 ft | Madison |
|
L Medicine Bow R At Boles Spring, Wy
12 hours ago · USGS 06634620 |
1 cfs | · | · | 56°F | 6,570 ft | Little Medicine Bow |
|
Deer Creek In Canyon, Wy
12 hours ago · USGS 06646000 |
1 cfs | 1.68 ft | · | 72°F | 5,651 ft | Middle North Platte-Casper |
|
Belle Fourche River Below Moorcroft, Wy
12 hours ago · USGS 06426500 |
0 cfs | · | · | 68°F | 4,101 ft | Upper Belle Fourche |
|
Little Snake River Near Dixon, Wy
13 hours ago · USGS 09257000 |
0 cfs | 1.65 ft | · | 54°F | 6,342 ft | Little Snake |
|
Bear River Below Pixley Dam, Wy
12 hours ago · USGS 10028500 |
0 cfs | · | · | 51°F | 6,182 ft | Central Bear |
|
Muddy Creek Below Young Draw, Wy
13 hours ago · USGS 09258980 |
0 cfs | 1.76 ft | 69°F | 56°F | 6,273 ft | Muddy |
|
Cheyenne River Near Spencer, Wy
12 hours ago · USGS 06386500 |
0 cfs | 3.32 ft | · | 66°F | 3,582 ft | Angostura Reservoir |
|
Powder River At Arvada, Wy
3 days ago · USGS 06317000 |
0 cfs | 1.03 ft | · | 69°F | 3,622 ft | Upper Powder |
See every Wyoming gauge ranked against normal.
- Percentile rank & % of median for all 76 gauges
- 15-day PULSE forecast on every gauge
- Custom flow alerts & full daily history
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 |
See when every Wyoming run is runnable.
- Runnable-window alerts on every river run
- 15-day PULSE flow forecast per run
- Full whitewater class & gauge history
About Wyoming streamflow
What are river levels like in Wyoming right now?
As of August 2, 2026, Wyoming rivers are running at 114% of normal across 76 USGS streamgauges, and the Snake River Ab Reservoir Nr Alpine Wy is reporting the highest discharge at 6,960 cfs. The full sortable gauge table is below.
Which Wyoming river is running highest right now?
As of August 2, 2026, the highest discharge in Wyoming is 6,960 cfs on the Snake River Ab Reservoir Nr Alpine Wy. See the sortable gauge table for the full statewide ranking.
Are Wyoming rivers high or low right now?
Compare the statewide percent-of-normal on this page: above 100% means Wyoming rivers are running higher than the seasonal average for the date, below 100% means lower (a dry spell or drought). Each gauge also shows its own percent of median.
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.