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 WEDNESDAY: OCTOBER 8 , 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 * 1.8 .5 360 Blind Bull Sum 8880 .0 .0 * .9 .6 150 Cottonwood Creek 7710 .0 .0 * 1.4 .6 233 East Rim Divide 8010 .0 .0 * 1.1 .3 367 Grand Targhee 9260 .2 1.0 20* 1.9 1.4 136 Granite Creek 6770 .0 .0 * 1.0 .4 250 Grassy Lake 7330 .0 .0 * .4 .8 50 Gros Ventre Summit 8760 .0 .0 * -M .6 * Gunsight Pass 9830 .7 .0 * 1.4 .7 200 Lewis Lake Divide 7880 .0 .0 * .7 .6 117 Loomis Park 8240 .0 .0 * .7 .4 175 Phillips Bench 8160 .0 .0 * 1.1 .5 220 Salt River Summit 7630 .0 .0 * 1.0 .3 333 Snake River Station 6900 .0 .0 * .6 .6 100 Somsen Ranch 6830 .0 .0 * 1.9 .4 475 Spring Creek Divide 9020 .0 .0 * 1.1 .4 275 Thumb Divide 7970 .1 .0 * 1.1 .6 183 Togwotee Pass 9590 .0 .0 * 1.8 .6 300 Triple Peak 8520 .0 .0 * 1.1 .5 220 Two Ocean Plateau 9240 .7 .4 175* 1.8 .8 225 Willow Creek 8060 .0 .0 * 1.8 1.0 180 Younts Peak 8340 .7 .0 * 2.9 .6 483 ----- ----- Basin Index (%) 171* 218 MADISON HEADWATERS IN WYOMING Black Bear 8160 .1 .2 50* .4 .6 67 Canyon 7870 .0 .0 * .7 .4 175 Madison Plateau 7710 .0 .0 * .7 .5 140 West Yellowstone 6680 .0 .0 * .6 .4 150 Whiskey Creek 6790 .1 .0 * .5 .4 125 ----- ----- Basin Index (%) 100* 126 YELLOWSTONE HEADWATERS IN WYOMING Beartooth Lake 9360 .4 .5 80* .8 .6 133 Canyon 7870 .0 .0 * .7 .4 175 Evening Star 9040 .1 .2 50* 1.6 .8 200 Fisher Creek 9110 .4 .0 * .9 .8 112 Monument Peak 8740 .7 .1 700* 1.3 .7 186 Northeast Entrance 7420 .0 .0 * .9 .4 225 Parker Peak 9420 .3 .4 75* 1.0 .7 143 Sylvan Lake 8440 .0 .0 * 1.2 .9 133 Thumb Divide 7970 .1 .0 * 1.1 .6 183 Two Ocean Plateau 9240 .7 .4 175* 1.8 .8 225 White Mill 8730 .3 .0 * .8 .6 133 Wolverine 7650 .0 .0 * .8 .5 160 ----- ----- Basin Index (%) 188* 165 WIND RIVER Burroughs Creek 8760 .0 -M * -M -M * Castle Creek 8410 .2 .0 * 1.1 .5 220 Cold Springs 9640 .5 .0 * 1.2 .3 400 Deer Park 9690 .1 .0 * .3 .6 50 Hobbs Park 10080 .4 .3 133* .9 .6 150 Kirwin 9580 .8 .2 400* 1.9 .7 271 Little Warm 9370 .4 .0 * 1.6 .5 320 South Pass 9040 .2 .0 * .4 .6 67 St. Lawrence Alt 8610 .0 -M * 1.0 -M * Togwotee Pass 9590 .0 .0 * 1.8 .6 300 Townsend Creek 8720 .1 .0 * .7 .6 117 ----- ----- Basin Index (%) 540* 198 BIGHORN BASIN Bald Mtn. 9360 1.7 .8 212* 2.6 .6 433 Bear Trap Meadow 8200 .2 .0 * 1.0 .6 167 Bone Springs Div 9340 .7 .5 140* 1.7 .7 243 Grave Springs 8560 .2 .2 100* .8 .5 160 Kirwin 9580 .8 .2 400* 1.9 .7 271 Marquette 8800 .2 .2 100* 1.2 .6 200 Middle Powder 7760 .3 .1 300* 1.0 .6 167 Owl Creek 8990 1.2 .0 * 1.9 .4 475 Powder River Pass 9480 .1 .2 50* .9 .6 150 Shell Creek 9570 1.0 1.0 100* 1.7 .8 212 Timber Creek 7910 .5 .2 250* 1.7 .7 243 ----- ----- Basin Index (%) 203* 241 SHOSHONE RIVER Blackwater 9840 1.3 .4 325* 1.4 .8 175 Evening Star 9040 .1 .2 50* 1.6 .8 200 Marquette 8800 .2 .2 100* 1.2 .6 200 Sylvan Lake 8440 .0 .0 * 1.2 .9 133 Sylvan Road 7140 .0 .0 * .9 .4 225 Younts Peak 8340 .7 .0 * 2.9 .6 483 ----- ----- Basin Index (%) 288* 224 POWDER RIVER Bear Trap Meadow 8200 .2 .0 * 1.0 .6 167 Cloud Peak Reservoir 9830 .4 .1 400* 1.1 .8 138 Grave Springs 8560 .2 .2 100* .8 .5 160 Hansen Sawmill 8360 .1 .0 * 1.8 .6 300 Middle Powder 7760 .3 .1 300* 1.0 .6 167 Powder River Pass 9480 .1 .2 50* .9 .6 150 Soldier Park 8680 .5 .1 500* 1.5 .7 214 ----- ----- Basin Index (%) 257* 184 TONGUE RIVER Big Goose 8010 .5 .1 500* 1.6 .6 267 Bone Springs Div 9340 .7 .5 140* 1.7 .7 243 Burgess Junction 7900 .6 .2 300* 1.5 .6 250 Dome Lake 8890 .9 .2 450* 1.7 .8 212 Little Goose 8560 .6 .4 150* 1.4 .6 233 Sucker Creek 8840 .7 .2 350* 1.5 .5 300 Tie Creek 7050 .3 .0 * 1.6 .6 267 ----- ----- Basin Index (%) 269* 250 BELLE FOURCHE Blind Park 6900 .1 .0 * .9 .5 180 Cole Canyon 5930 .0 .0 * 1.5 .4 375 North Rapid Creek 6150 .1 .0 * .5 .3 167 ----- ----- Basin Index (%) * 242 CHEYENNE RIVER BASIN Blind Park 6900 .1 .0 * .9 .5 180 North Rapid Creek 6150 .1 .0 * .5 .3 167 ----- ----- Basin Index (%) * 175 UPPER N. PLATTE Arapaho Ridge 10960 .0 .2 0* .4 .6 67 Blackhall Mtn 9830 .0 .0 * .8 .7 114 Cinnabar Park 9670 .0 .0 * .4 .6 67 Columbine 9170 .3 .0 * .1 .5 20 Divide Peak 8700 .3 .0 * .8 .6 133 Joe Wright 10140 .1 .0 * .3 .6 50 Laprele Creek 8370 .1 .0 * 1.8 .2 900 Med Bow 10500 .3 -M * 1.5 -M * Never Summer 10300 .2 .1 200* .2 .6 33 North French Creek 10150 .1 .0 * 1.2 .4 300 Old Battle 9850 .1 .0 * 1.5 .6 250 Rawah 9100 .0 .0 * .4 .7 57 Sage Creek Basin 7830 .1 .0 * .5 .5 100 Sand Lake 10080 .4 .0 * 1.3 .5 260 South Brush Creek 8480 .0 .0 * .5 .4 125 Tower 10610 .0 .1 0* .3 .8 38 Webber Springs 9250 .2 .0 * 1.3 .6 217 Whiskey Park 8950 .0 .0 * .8 .8 100 Willow Creek Pass 9520 .1 .0 * .3 .4 75 Zirkel 9320 .1 .0 * .7 .6 117 ----- ----- Basin Index (%) 525* 127 SWEETWATER Deer Park 9690 .1 .0 * .3 .6 50 Larsen Creek 8880 .4 .0 * .4 .6 67 South Pass 9040 .2 .0 * .4 .6 67 ----- ----- Basin Index (%) * 61 LOWER N. PLATTE Casper Mtn. 7940 .3 .0 * 1.1 .3 367 Laprele Creek 8370 .1 .0 * 1.8 .2 900 Reno Hill 8410 .0 .0 * 1.2 .5 240 Windy Peak 7900 .0 .0 * 1.3 .3 433 ----- ----- Basin Index (%) * 415 LARAMIE RIVER Brooklyn Lake 10250 .1 .0 * .6 .4 150 Cinnabar Park 9670 .0 .0 * .4 .6 67 Crow Creek 8320 .1 .0 * 1.1 .3 367 Deadman Hill 10240 .2 .2 100* .4 .4 100 Rawah 9100 .0 .0 * .4 .7 57 Roach 9710 .1 .0 * .3 .4 75 Windy Peak 7900 .0 .0 * 1.3 .3 433 ----- ----- Basin Index (%) 250* 145 S. PLATTE Crow Creek 8320 .1 .0 * 1.1 .3 367 ----- ----- Basin Index (%) * 367 LITTLE SNAKE RIVER Battle Mountain 7460 .0 .0 * .8 .6 133 Divide Peak 8700 .3 .0 * .8 .6 133 Elk River 8710 .3 .0 * .8 .6 133 Elkhead Divide 8780 .0 -M * .8 -M * Little Snake River 8930 .0 .0 * .6 .8 75 Old Battle 9850 .1 .0 * 1.5 .6 250 Sage Creek Basin 7830 .1 .0 * .5 .5 100 Sandstone RS 8150 .0 .0 * .7 .4 175 Whiskey Park 8950 .0 .0 * .8 .8 100 ----- ----- Basin Index (%) * 133 UPPER GREEN RIVER Big Sandy Opening 9100 .8 .0 * .6 .6 100 Blind Bull Sum 8880 .0 .0 * .9 .6 150 East Rim Divide 8010 .0 .0 * 1.1 .3 367 Elkhart Park G.S. 9410 .5 .0 * 1.2 .6 200 Gros Ventre Summit 8760 .0 .0 * -M .6 * Gunsight Pass 9830 .7 .0 * 1.4 .7 200 Indian Creek 9400 1.0 .0 * 1.6 .3 533 Kendall R.S. 7790 .0 .0 * .9 .4 225 Larsen Creek 8880 .4 .0 * .4 .6 67 Loomis Park 8240 .0 .0 * .7 .4 175 New Fork Lake 8380 .0 .0 * -M .3 * Pocket Creek 9370 -M -M * -M -M * Snider Basin 8080 .0 .0 * .3 .4 75 Spring Creek Divide 9020 .0 .0 * 1.1 .4 275 Triple Peak 8520 .0 .0 * 1.1 .5 220 ----- ----- Basin Index (%) * 195 LOWER GREEN RIVER Blacks Fork Jct 8880 .1 -M * .4 -M * Buck Pasture 9620 .0 -M * .5 -M * EF Blacks Fork GS 9360 .0 -M * .2 -M * Hams Fork 7870 .0 .0 * .6 .2 300 Henrys Fork 10180 -M -M * .2 -M * Hewinta 9510 .0 .0 * .2 .5 40 Hickerson Park 9130 .0 .0 * .6 .4 150 Hole-in-Rock 9170 .0 .0 * .4 .4 100 Indian Creek 9400 1.0 .0 * 1.6 .3 533 Kelley R.S. 8240 .0 .0 * 1.2 .2 600 Spirit Lk 10240 .0 .0 * 1.2 .6 200 Steel Creek Park 10140 .0 .0 * .5 .6 83 ----- ----- Basin Index (%) * 197 UPPER BEAR RIVER Bear River RS 8510 .0 -M * .4 -M * Bug Lake 7980 .0 .0 * 1.2 .4 300 Burts Miller Ranch 7900 .0 .0 * .2 .3 67 Chalk Creek #1 9160 .2 .0 * .9 .8 112 Giveout 6940 .0 .0 * .8 .4 200 Hayden Fork 9160 .0 .0 * .6 .6 100 Kelley R.S. 8240 .0 .0 * 1.2 .2 600 Lily Lake 9130 .0 .0 * .4 .4 100 Monte Cristo 8930 .2 .0 * 1.6 .5 320 Salt River Summit 7630 .0 .0 * 1.0 .3 333 Spring Creek Divide 9020 .0 .0 * 1.1 .4 275 Trial Lake 9970 .8 .0 * .8 .7 114 ----- ----- Basin Index (%) * 196 ----------------------------------------------------------------------------- -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.