Supercell over Laramie
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Wyoming Snow Precipitation Update

United States Natural Resources Water and Climate Center Department of Conservation Portland, Oregon Agriculture Service S N O W - P R E C I P I T A T I O N U P D A T E Based on Mountain Data from NRCS SNOTEL Sites As of SUNDAY: OCTOBER 5 , 2025 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Median Med ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7040 .0 .0 * 1.4 .3 467 Blind Bull Sum 8880 .0 .0 * .6 .2 300 Cottonwood Creek 7710 .0 .0 * 1.3 .3 433 East Rim Divide 8010 .0 .0 * 1.0 .1 1000 Grand Targhee 9260 .0 .2 0* 1.1 .8 138 Granite Creek 6770 .0 .0 * .8 .2 400 Grassy Lake 7330 .0 .0 * .4 .6 67 Gros Ventre Summit 8760 .3 .0 * -M .2 * Gunsight Pass 9830 .9 .0 * 1.0 .4 250 Lewis Lake Divide 7880 .1 .0 * .6 .5 120 Loomis Park 8240 .1 .0 * .7 .1 700 Phillips Bench 8160 .0 .0 * .9 .2 450 Salt River Summit 7630 .0 .0 * 1.0 .2 500 Snake River Station 6900 .0 .0 * .5 .3 167 Somsen Ranch 6830 .1 .0 * 1.8 .2 900 Spring Creek Divide 9020 .0 .0 * 1.0 .2 500 Thumb Divide 7970 .1 .0 * .7 .4 175 Togwotee Pass 9590 .2 .0 * 1.4 .4 350 Triple Peak 8520 .2 .0 * 1.1 .4 275 Two Ocean Plateau 9240 .2 .0 * 1.2 .6 200 Willow Creek 8060 .2 .0 * 1.6 .4 400 Younts Peak 8340 .9 .0 * 2.4 .2 1200 ----- ----- Basin Index (%) 1650* 321 MADISON HEADWATERS IN WYOMING Black Bear 8160 .1 .0 * .3 .3 100 Canyon 7870 .0 .0 * .7 .2 350 Madison Plateau 7710 .0 .0 * .6 .4 150 West Yellowstone 6680 .1 .0 * .4 .2 200 Whiskey Creek 6790 .1 .0 * .4 .2 200 ----- ----- Basin Index (%) * 185 YELLOWSTONE HEADWATERS IN WYOMING Beartooth Lake 9360 .0 .0 * .5 .3 167 Canyon 7870 .0 .0 * .7 .2 350 Evening Star 9040 .2 .0 * 1.0 .5 200 Fisher Creek 9110 .2 .0 * .5 .4 125 Monument Peak 8740 .6 .0 * 1.1 .3 367 Northeast Entrance 7420 .0 .0 * .7 .2 350 Parker Peak 9420 .2 .2 100* .7 .3 233 Sylvan Lake 8440 .1 .0 * 1.0 .6 167 Thumb Divide 7970 .1 .0 * .7 .4 175 Two Ocean Plateau 9240 .2 .0 * 1.2 .6 200 White Mill 8730 .0 .0 * .6 .3 200 Wolverine 7650 .0 .0 * .5 .3 167 ----- ----- Basin Index (%) 800* 209 WIND RIVER Burroughs Creek 8760 .1 -M * -M -M * Castle Creek 8410 .3 .0 * .6 .2 300 Cold Springs 9640 .4 .0 * .9 .2 450 Deer Park 9690 .1 .0 * .0 .2 0 Hobbs Park 10080 .0 .0 * .3 .2 150 Kirwin 9580 .2 .0 * 1.0 .4 250 Little Warm 9370 .4 .0 * 1.4 .3 467 South Pass 9040 .2 .0 * .1 .2 50 St. Lawrence Alt 8610 .0 -M * .4 -M * Togwotee Pass 9590 .2 .0 * 1.4 .4 350 Townsend Creek 8720 .1 .0 * .3 .2 150 ----- ----- Basin Index (%) * 261 BIGHORN BASIN Bald Mtn. 9360 .5 .0 * 1.2 .2 600 Bear Trap Meadow 8200 .2 .0 * .4 .3 133 Bone Springs Div 9340 .3 .0 * .9 .3 300 Grave Springs 8560 .0 .0 * .4 .2 200 Kirwin 9580 .2 .0 * 1.0 .4 250 Marquette 8800 .3 .0 * .9 .2 450 Middle Powder 7760 .4 .0 * .4 .2 200 Owl Creek 8990 .4 .0 * .7 .2 350 Powder River Pass 9480 .1 .2 50* .5 .4 125 Shell Creek 9570 .3 .6 50* .6 .4 150 Timber Creek 7910 .1 .0 * 1.0 .3 333 ----- ----- Basin Index (%) 350* 258 SHOSHONE RIVER Blackwater 9840 .8 .0 * .7 .4 175 Evening Star 9040 .2 .0 * 1.0 .5 200 Marquette 8800 .3 .0 * .9 .2 450 Sylvan Lake 8440 .1 .0 * 1.0 .6 167 Sylvan Road 7140 .0 .0 * .8 .2 400 Younts Peak 8340 .9 .0 * 2.4 .2 1200 ----- ----- Basin Index (%) * 324 POWDER RIVER Bear Trap Meadow 8200 .2 .0 * .4 .3 133 Cloud Peak Reservoir 9830 .2 .0 * .6 .4 150 Grave Springs 8560 .0 .0 * .4 .2 200 Hansen Sawmill 8360 .0 .0 * 1.1 .4 275 Middle Powder 7760 .4 .0 * .4 .2 200 Powder River Pass 9480 .1 .2 50* .5 .4 125 Soldier Park 8680 .1 .0 * .8 .4 200 ----- ----- Basin Index (%) 500* 183 TONGUE RIVER Big Goose 8010 .4 .0 * 1.0 .3 333 Bone Springs Div 9340 .3 .0 * .9 .3 300 Burgess Junction 7900 .4 .0 * 1.0 .3 333 Dome Lake 8890 .5 .0 * 1.1 .4 275 Little Goose 8560 .3 .0 * .7 .4 175 Sucker Creek 8840 .4 .0 * .8 .2 400 Tie Creek 7050 .2 .0 * .9 .2 450 ----- ----- Basin Index (%) * 305 BELLE FOURCHE Blind Park 6900 .2 .0 * .6 .2 300 Cole Canyon 5930 .2 .0 * 1.0 .1 1000 North Rapid Creek 6150 .1 .0 * .3 .2 150 ----- ----- Basin Index (%) * 380 CHEYENNE RIVER BASIN Blind Park 6900 .2 .0 * .6 .2 300 North Rapid Creek 6150 .1 .0 * .3 .2 150 ----- ----- Basin Index (%) * 225 UPPER N. PLATTE Arapaho Ridge 10960 .0 .0 * .3 .4 75 Blackhall Mtn 9830 .1 .0 * .5 .4 125 Cinnabar Park 9670 .1 .0 * .3 .3 100 Columbine 9170 .3 .0 * .1 .3 33 Divide Peak 8700 .2 .0 * .6 .2 300 Joe Wright 10140 .2 .0 * .2 .2 100 Laprele Creek 8370 .1 .0 * 1.6 .1 1600 Med Bow 10500 .4 -M * 1.1 -M * Never Summer 10300 .1 .0 * .1 .4 25 North French Creek 10150 .3 .0 * .9 .2 450 Old Battle 9850 .2 .0 * 1.1 .2 550 Rawah 9100 .0 .0 * .2 .3 67 Sage Creek Basin 7830 .1 .0 * .5 .2 250 Sand Lake 10080 .2 .0 * .9 .2 450 South Brush Creek 8480 .0 .0 * .3 .2 150 Tower 10610 .0 .0 * .4 .4 100 Webber Springs 9250 .2 .0 * 1.1 .3 367 Whiskey Park 8950 .1 .0 * .6 .3 200 Willow Creek Pass 9520 .1 .0 * .2 .2 100 Zirkel 9320 .1 .0 * .7 .5 140 ----- ----- Basin Index (%) * 200 SWEETWATER Deer Park 9690 .1 .0 * .0 .2 0 Larsen Creek 8880 .4 .0 * .1 .4 25 South Pass 9040 .2 .0 * .1 .2 50 ----- ----- Basin Index (%) * 25 LOWER N. PLATTE Casper Mtn. 7940 .2 .0 * .6 .1 600 Laprele Creek 8370 .1 .0 * 1.6 .1 1600 Reno Hill 8410 .0 .0 * .9 .1 900 Windy Peak 7900 .0 .0 * 1.0 .1 1000 ----- ----- Basin Index (%) * 1025 LARAMIE RIVER Brooklyn Lake 10250 .2 .0 * .5 .1 500 Cinnabar Park 9670 .1 .0 * .3 .3 100 Crow Creek 8320 .1 .0 * .5 .2 250 Deadman Hill 10240 .2 .0 * .1 .2 50 Rawah 9100 .0 .0 * .2 .3 67 Roach 9710 .1 .0 * .2 .2 100 Windy Peak 7900 .0 .0 * 1.0 .1 1000 ----- ----- Basin Index (%) * 200 S. PLATTE Crow Creek 8320 .1 .0 * .5 .2 250 ----- ----- Basin Index (%) * 250 LITTLE SNAKE RIVER Battle Mountain 7460 .2 .0 * .8 .2 400 Divide Peak 8700 .2 .0 * .6 .2 300 Elk River 8710 .2 .0 * .8 .2 400 Elkhead Divide 8780 .0 -M * .7 -M * Little Snake River 8930 .0 .0 * .6 .5 120 Old Battle 9850 .2 .0 * 1.1 .2 550 Sage Creek Basin 7830 .1 .0 * .5 .2 250 Sandstone RS 8150 .0 .0 * .6 .1 600 Whiskey Park 8950 .1 .0 * .6 .3 200 ----- ----- Basin Index (%) * 295 UPPER GREEN RIVER Big Sandy Opening 9100 .7 .0 * .2 .2 100 Blind Bull Sum 8880 .0 .0 * .6 .2 300 East Rim Divide 8010 .0 .0 * 1.0 .1 1000 Elkhart Park G.S. 9410 .5 .0 * 1.0 .2 500 Gros Ventre Summit 8760 .3 .0 * -M .2 * Gunsight Pass 9830 .9 .0 * 1.0 .4 250 Indian Creek 9400 1.4 .0 * 1.5 .2 750 Kendall R.S. 7790 .2 .0 * .9 .2 450 Larsen Creek 8880 .4 .0 * .1 .4 25 Loomis Park 8240 .1 .0 * .7 .1 700 New Fork Lake 8380 .5 .0 * -M .1 * Pocket Creek 9370 -M -M * -M -M * Snider Basin 8080 .1 .0 * .4 .1 400 Spring Creek Divide 9020 .0 .0 * 1.0 .2 500 Triple Peak 8520 .2 .0 * 1.1 .4 275 ----- ----- Basin Index (%) * 352 LOWER GREEN RIVER Blacks Fork Jct 8880 .2 -M * .3 -M * Buck Pasture 9620 .0 -M * .2 -M * EF Blacks Fork GS 9360 .1 -M * .2 -M * Hams Fork 7870 .0 .0 * .4 .1 400 Henrys Fork 10180 -M -M * .2 -M * Hewinta 9510 .1 .0 * .2 .3 67 Hickerson Park 9130 .0 .0 * .2 .2 100 Hole-in-Rock 9170 .0 .0 * .1 .1 100 Indian Creek 9400 1.4 .0 * 1.5 .2 750 Kelley R.S. 8240 .4 .0 * 1.1 .2 550 Spirit Lk 10240 .0 .0 * .1 .3 33 Steel Creek Park 10140 .0 .0 * .4 .3 133 ----- ----- Basin Index (%) * 235 UPPER BEAR RIVER Bear River RS 8510 .0 -M * .3 -M * Bug Lake 7980 .0 .0 * 1.0 .2 500 Burts Miller Ranch 7900 .0 .0 * .2 .1 200 Chalk Creek #1 9160 .6 .0 * .7 .4 175 Giveout 6940 .0 .0 * .8 .2 400 Hayden Fork 9160 .0 .0 * .5 .3 167 Kelley R.S. 8240 .4 .0 * 1.1 .2 550 Lily Lake 9130 .0 .0 * .3 .2 150 Monte Cristo 8930 .6 .0 * 1.5 .3 500 Salt River Summit 7630 .0 .0 * 1.0 .2 500 Spring Creek Divide 9020 .0 .0 * 1.0 .2 500 Trial Lake 9970 1.4 .0 * .7 .3 233 ----- ----- Basin Index (%) * 338 ----------------------------------------------------------------------------- -M = Missing data * = Data may not provide a valid measure of conditions. Units = inches for the Current and Median (or Average) Snow Water Equivalent and Total Precipitation values If the Basin Index (%) value is flagged as potentially invalid, care should be taken to evaluate if the value is representative of conditions in the basin. The SNOW WATER EQUIVALENT Percent of Median (or Average) represents the snow water equivalent found at selected SNOTEL sites in or near the basin compared to the Median (or Average) value for those sites on this day. The TOTAL PRECIPITATION Percent of Median (or Average) represents the total precipitation (beginning October 1st) found at selected SNOTEL sites in or near the basin compared to the Median (or Average) value for those sites on this day. Contact your state water supply staff for assistance. Medians and averages are calculated for the period 1991-2020. Provisional data, subject to revision. * Site -- Either: (a) the current value is missing; (b) the median or average for the day is not available or is zero; or (c) for snow water equivalent, the median or average for the day is less than 10% of the maximum median or average value for the year. * Basin - More than half of the stations for a basin with medians (or averages) report missing or invalid data The basin index is calculated as the sum of the valid current values divided by the sum of the corresponding medians or averages and the resulting fraction multiplied by 100. ---------------------------------------------------------------------------- -M = Missing data * = Data may not provide a valid measure of conditions. Units = inches for the Current and Normal Snow Water Equivalent and Total Precipitation values If the Basin Index (%) value is flagged as potentially invalid, care should be taken to evaluate if the value is representative of conditions in the basin. The SNOW WATER EQUIVALENT Percent of Median represents the snow water equivalent found at selected SNOTEL sites in or near the basin compared to the Median value for those sites on this day. The TOTAL PRECIPITATION Percent of Average represents the total precipitation (beginning October 1st) found at selected SNOTEL sites in or near the basin compared to the Average value for those sites on this day. Contact your state water supply staff for assistance. Medians and averages are calculated for the period 1981-2010. Provisional data, subject to revision. * Site -- Either: (a) the current value is missing; (b) the median or average for the day is not available or is zero; or (c) for snow water equivalent, the median for the day is less than 10% of the maximum median value for the year. * Basin - More than half of the sites within the basin are flagged with *, preventing the calculation of a meaningful basin index. The basin index is calculated as the sum of the valid current values divided by the sum of the corresponding medians (for snow water equivalent) or averages (for precipitation) and the resulting fraction multiplied by 100.