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Flow report

Wyoming River Levels & Streamflow

As of Sep 2, 2026, Wyoming rivers are running at 129% of normal across 76 USGS gauges — the highest is 6,480 cfs on the Snake River Ab Reservoir Nr Alpine Wy. Live discharge, gauge height, and percent-of-normal for every USGS streamgauge in Wyoming.

USGS gauges
76
State percent normal
129%
Paddle runs
15
Updated
Sep 2
Open the Wyoming flow layer on the map Every USGS streamgauge filtered to Wyoming.
Open the map →
September
2
2026
Flow briefing

Streamflow levels across Wyoming are currently 129% of normal, with the Snake River Ab Reservoir Nr Alpine Wy reporting the highest discharge in the state at 6,480 cfs and a gauge stage of 5.54 ft.

Meanwhile, the Pine Creek Above Fremont Lake is seeing a spike today — up 53% 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.

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

129%

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 6,480 cfs

Gauge stage 5.54 ft

Biggest 24h spike

Pine Creek Above Fremont Lake +53%

Now 237 cfs

Network coverage

Gauges + rivers tracked 76 + 0

USGS gauges feeding 0 named rivers in Wyoming.

Where every gauge actually sits

One dot per Wyoming streamgauge, placed by its own percent of normal. The state average is a single line through all of it.

State average 129%
0% 50% 100% · normal 150% 200%+
Much below normalunder 50% Below normal50–90% Near normal90–110% Above normal110–150% Much above normalover 150%

Percent of normal compares today's discharge with the historical average for this calendar day. Tap any dot to open that gauge.

Wyoming streamflow, three water years

Statewide percent of normal, every day since Aug 2023. The dotted line is normal.

129% of normal today
+50pts vs this day last year (79%)
291of 366 days below normal, past year
141% 3-year peak · Oct 2023
50% 100% normal 150%
Aug 2023 202420252026 Sep 1, 2026

799 daily readings from 75 reporting gauges. Percent of normal is today's statewide discharge against the historical average for the same calendar day — 100% is normal, not "good". The line breaks in 2 places where the record skips more than five days — those are gaps in reporting, not readings of zero.

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.

76 gauges
Streamgage Streamflow Gage height Water temp Air temp Elevation Watershed
Snake River Ab Reservoir Nr Alpine Wy, Wy
1 day ago · USGS 13022500
6,380 cfs 5.50 ft 63°F 45°F 5,696 ft Greys-Hobock
Snake River Bl Flat Creek Nr Jackson Wy, Wy
1 day ago · USGS 13018750
6,250 cfs 4.21 ft 62°F 44°F 5,930 ft Greys-Hobock
Snake River At Moose, Wy
1 day ago · USGS 13013650
5,310 cfs 11.20 ft 61°F 41°F 6,443 ft Snake Headwaters
Snake River Nr Moran Wy, Wy
1 day ago · USGS 13011000
4,920 cfs 7.19 ft 59°F 44°F 6,732 ft Snake Headwaters
Yellowstone River At Yellowstone Lk Outlet Ynp, Wy
1 day ago · USGS 06186500
1,090 cfs 3.65 ft · 40°F 7,731 ft Yellowstone Headwaters
Bighorn River At Kane, Wy
1 day ago · USGS 06279500
886 cfs 1.95 ft · 56°F 3,642 ft Big Horn Lake
Green River Below Fontenelle Reservoir, Wy
1 day ago · USGS 09211200
733 cfs 11.18 ft 63°F 46°F 6,401 ft Upper Green-Slate
Shoshone River Near Lovell, Wy
1 day ago · USGS 06285100
727 cfs 5.19 ft 62°F 52°F 3,853 ft Shoshone
Green River Near La Barge, Wy
1 day ago · USGS 09209400
655 cfs 4.91 ft 32°F 46°F 6,531 ft Upper Green
Bighorn River At Basin, Wy
1 day ago · USGS 06274300
654 cfs 3.06 ft · 53°F 3,831 ft Upper Bighorn
Green River Near Green River, Wy
1 day ago · USGS 09217000
622 cfs 1.00 ft 66°F 50°F 6,070 ft Bitter
Bull Lake Creek Above Bull Lake, Wy
1 day ago · USGS 06224000
489 cfs 3.58 ft 48°F 55°F 5,889 ft Upper Wind
Wind River Above Red Creek, Wy
1 day ago · USGS 06220800
447 cfs 3.22 ft · 46°F 6,406 ft Upper Wind
Wind River Near Kinnear, Wy
1 day ago · USGS 06227600
439 cfs 3.68 ft 35°F 56°F 5,287 ft Upper Wind
North Platte River At Orin, Wy
1 day ago · USGS 06652000
432 cfs 3.24 ft · 58°F 4,651 ft Glendo Reservoir
Green River At Warren Bridge, Wy
1 day ago · USGS 09188500
407 cfs 2.07 ft · 45°F 7,477 ft Upper Green
Salt River Ab Reservoir Nr Etna Wy, Wy
1 day ago · USGS 13027500
369 cfs 1.77 ft · 45°F 5,694 ft Salt
New Fork River Near Big Piney, Wy
1 day ago · USGS 09205000
368 cfs 2.69 ft 114°F 45°F 6,807 ft Upper Green
North Platte River Below Whalen Diversion Dam, Wy
1 day ago · USGS 06657000
357 cfs 5.40 ft · 63°F 4,265 ft Glendo Reservoir
Wind River Ab Boysen Reservoir, Wy
1 day ago · USGS 06236100
356 cfs 2.19 ft 67°F 61°F 4,772 ft Upper Wind
Gros Ventre River At Kelly Wy, Wy
1 day ago · USGS 13014500
324 cfs 4.28 ft 58°F 47°F 6,650 ft Gros Ventre
North Fork Shoshone River At Wapiti, Wy
1 day ago · USGS 06279940
318 cfs 3.42 ft · 53°F 5,564 ft North Fork Shoshone
Dinwoody Creek Above Lakes, Wy
1 day ago · USGS 06221400
302 cfs 3.29 ft · 50°F 6,526 ft Upper Wind
Fish Creek At Wilson, Wy
1 day ago · USGS 13016450
297 cfs 3.04 ft 57°F 42°F 6,162 ft Greys-Hobock
Greys River Ab Reservoir Nr Alpine Wy, Wy
1 day ago · USGS 13023000
296 cfs 1.46 ft · 46°F 5,704 ft Greys-Hobock
Fivemile Creek Near Shoshoni, Wy
1 day ago · USGS 06253000
283 cfs 3.25 ft 64°F 60°F 4,766 ft Lower Wind
Lamar River Nr Tower Falls Ranger Station Ynp, Wy
1 day ago · USGS 06188000
256 cfs 1.28 ft 59°F 40°F 6,021 ft Yellowstone Headwaters
Snake River Ab Jackson Lake At Flagg Ranch Wy, Wy
1 day ago · USGS 13010065
248 cfs 2.37 ft 62°F 40°F 6,818 ft Snake Headwaters
Buffalo Fork Ab Lava Creek Nr Moran Wy, Wy
1 day ago · USGS 13011900
238 cfs 1.17 ft 55°F 42°F 6,788 ft Snake Headwaters
Firehole River Near West Yellowstone Mt, Wy
1 day ago · USGS 06036905
192 cfs 2.90 ft 69°F 37°F 7,070 ft Madison
Pine Creek Above Fremont Lake, Wy
1 day ago · USGS 09196500
192 cfs 3.43 ft 56°F 46°F 7,460 ft New Fork
Bear River Above Reservoir, Wy
1 day ago · USGS 10020100
140 cfs 1.60 ft · 46°F 6,465 ft Upper Bear
Bear River Below Reservoir, Wy
1 day ago · USGS 10020300
137 cfs 3.56 ft · 45°F 6,409 ft Upper Bear
Wind River At Riverton, Wy
1 day ago · USGS 06228000
135 cfs 2.80 ft · 63°F 4,914 ft Upper Wind
Little Wind River Near Riverton, Wy
1 day ago · USGS 06235500
133 cfs 1.87 ft · 59°F 4,913 ft Little Wind
Gros Ventre River At Zenith Wy, Wy
1 day ago · USGS 13015000
115 cfs 18.19 ft · 41°F 6,318 ft Gros Ventre
Bear River At Evanston, Wy
1 day ago · USGS 10016900
107 cfs 1.34 ft · 44°F 6,740 ft Upper Bear
Blacks Fork Near Millburne, Wy
1 day ago · USGS 09218500
105 cfs 2.77 ft · 43°F 8,509 ft Blacks Fork
Wind River Near Dubois, Wy
1 day ago · USGS 06218500
99 cfs 2.40 ft · 51°F 7,204 ft Upper Wind
Bear River Below Smiths Fork, Wy
1 day ago · USGS 10038000
90 cfs 2.46 ft · 41°F 6,134 ft Central Bear
Smiths Fork Near Border, Wy
1 day ago · USGS 10032000
85 cfs 1.18 ft · 49°F 6,710 ft Central Bear
Gibbon River At Madison Jct, Wy
1 day ago · USGS 06037100
73 cfs 4.68 ft 63°F 38°F 6,801 ft Madison
Henrys Fork Near Manila, Wy
1 day ago · USGS 09229500
61 cfs 6.68 ft · 46°F 6,071 ft Upper Green-Flaming Gorge Reservoir
N Platte Riv Ab Seminoe Reservoir, Wy
1 day ago · USGS 06630000
60 cfs 2.10 ft · 52°F 6,416 ft Upper North Platte
Sf L Wind Riv Ab Washakie Res, Wy
1 day ago · USGS 06228350
56 cfs 2.67 ft · 55°F 6,406 ft Little Wind
Pacific Creek At Moran Wy, Wy
1 day ago · USGS 13011500
52 cfs 4.30 ft 57°F 41°F 6,734 ft Snake Headwaters
Big Sandy River Near Farson, Wy
1 day ago · USGS 09213500
43 cfs 3.72 ft · 47°F 6,774 ft Big Sandy
Crow C Nr Fairview Wyo, Wy
1 day ago · USGS 13025500
31 cfs 2.12 ft · 46°F 6,216 ft Salt
Clear Creek Near Buffalo, Wy
1 day ago · USGS 06318500
28 cfs 1.58 ft · 64°F 5,204 ft Clear
Encampment River At Mouth, Wy
1 day ago · USGS 06625000
28 cfs 1.63 ft · 45°F 6,973 ft Upper North Platte
Fontenelle C Nr Herschler Ranch, Wy
1 day ago · USGS 09210500
25 cfs 5.17 ft · 46°F 6,935 ft Upper Green
Encampment River Ab Hog Park Cr, Wy
1 day ago · USGS 06623800
24 cfs 1.01 ft 55°F 44°F 8,293 ft Upper North Platte
Flat Creek Bel Cache Creek, Wy
1 day ago · USGS 13018350
23 cfs 1.47 ft 59°F 44°F 6,130 ft Greys-Hobock
Boiling River At Mammoth, Wy
1 day ago · USGS 06190540
22 cfs 1.10 ft 127°F 48°F 5,672 ft Yellowstone Headwaters
Rock Creek Ab King Canyon Canal, Wy
1 day ago · USGS 06632400
21 cfs 1.16 ft · 55°F 7,795 ft Medicine Bow
Powder River At Arvada, Wy
1 day ago · USGS 06317000
19 cfs 1.57 ft · 58°F 3,622 ft Upper Powder
East Fork Of Smiths Fork Near Robertson, Wy
1 day ago · USGS 09220000
17 cfs 4.08 ft · 45°F 8,475 ft Blacks Fork
Granite C Ab Granite C Supplemental, Wy
1 day ago · USGS 13016305
15 cfs 3.78 ft · 44°F 6,404 ft Greys-Hobock
Laramie River Near Fort Laramie, Wy
1 day ago · USGS 06670500
15 cfs 1.92 ft 46°F 62°F 4,226 ft Middle North Platte-Scotts Bluff
Bear River Below Pixley Dam, Wy
1 day ago · USGS 10028500
11 cfs 1.14 ft · 41°F 6,182 ft Central Bear
Hams Fork Below Pole Creek, Wy
1 day ago · USGS 09223000
10 cfs 2.72 ft · 43°F 7,462 ft Blacks Fork
North Brush Creek Near Saratoga, Wy
1 day ago · USGS 06622700
9 cfs 1.93 ft · 45°F 8,074 ft Upper North Platte
Cache Creek Near Jackson, Wy
1 day ago · USGS 13018300
6 cfs 3.43 ft 47°F 49°F 6,774 ft Greys-Hobock
Belle Fourche River Below Moorcroft, Wy
1 day ago · USGS 06426500
4 cfs 1.18 ft · 54°F 4,101 ft Upper Belle Fourche
Middle Fork Powder River Near Barnum, Wy
1 day ago · USGS 06309200
3 cfs 4.91 ft · 50°F 7,233 ft Middle Fork Powder
Tantalus Creek At Norris Junction, Wy
1 day ago · USGS 06036940
3 cfs 1.45 ft 76°F 39°F 7,547 ft Madison
South Fork Shoshone River Ab Buffalo Bill Res, Wy
1 day ago · USGS 06281000
2 cfs 3.61 ft · 60°F 5,414 ft South Fork Shoshone
Laramie River At Laramie, Wy
1 day ago · USGS 06660000
2 cfs 3.14 ft · 50°F 7,128 ft Upper Laramie
Blacks Fork Near Little America, Wy
1 day ago · USGS 09224700
1 cfs 2.73 ft · 48°F 6,136 ft Blacks Fork
L Medicine Bow R At Boles Spring, Wy
1 day ago · USGS 06634620
1 cfs · · 51°F 6,570 ft Little Medicine Bow
Sweetwater River Near Sweetwater Station, Wy
1 day ago · USGS 06638090
1 cfs 1.09 ft · 53°F 6,593 ft Sweetwater
Deer Creek In Canyon, Wy
1 day ago · USGS 06646000
1 cfs 1.70 ft · 66°F 5,651 ft Middle North Platte-Casper
Medicine Bow R Ab Seminoe Reservoir, Wy
1 day ago · USGS 06635000
1 cfs 1.68 ft · 50°F 6,430 ft Medicine Bow
Muddy Creek Below Young Draw, Wy
1 day ago · USGS 09258980
0 cfs 1.84 ft 62°F 47°F 6,273 ft Muddy
Little Snake River Near Dixon, Wy
1 day ago · USGS 09257000
0 cfs 1.64 ft · 48°F 6,342 ft Little Snake
Cheyenne River Near Spencer, Wy
1 day ago · USGS 06386500
0 cfs 3.33 ft · 59°F 3,582 ft Angostura Reservoir
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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

What are river levels like in Wyoming right now?

As of September 2, 2026, Wyoming rivers are running at 129% of normal across 76 USGS streamgauges, and the Snake River Ab Reservoir Nr Alpine Wy is reporting the highest discharge at 6,480 cfs. The full sortable gauge table is below.

Which Wyoming river is running highest right now?

As of September 2, 2026, the highest discharge in Wyoming is 6,480 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.