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 15 , 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 * 2.9 1.1 264 Blind Bull Sum 8880 .1 .2 50* 1.6 .8 200 Cottonwood Creek 7710 .0 .0 * 2.4 1.3 185 East Rim Divide 8010 .0 .0 * 1.7 .6 283 Grand Targhee 9260 1.1 1.5 73* 3.9 2.4 162 Granite Creek 6770 .0 .0 * 2.0 .6 333 Grassy Lake 7330 .0 .0 * 2.3 1.5 153 Gros Ventre Summit 8760 .0 .2 0* -M .9 * Gunsight Pass 9830 1.1 .0 * 2.9 1.0 290 Lewis Lake Divide 7880 .1 .0 * 2.2 1.4 157 Loomis Park 8240 .1 .0 * 1.8 .9 200 Phillips Bench 8160 .1 .0 * 2.4 1.2 200 Salt River Summit 7630 .0 .0 * 1.8 .8 225 Snake River Station 6900 .0 .0 * 1.9 1.0 190 Somsen Ranch 6830 .2 .0 * 2.6 .9 289 Spring Creek Divide 9020 .4 .1 400* 2.3 .8 288 Thumb Divide 7970 .2 .0 * 2.3 1.0 230 Togwotee Pass 9590 .6 1.0 60* 3.0 1.4 214 Triple Peak 8520 .2 .0 * 2.0 1.0 200 Two Ocean Plateau 9240 1.1 1.2 92* 3.0 1.5 200 Willow Creek 8060 .0 .0 * 3.1 1.4 221 Younts Peak 8340 .2 .2 100* 3.9 .9 433 ----- ----- Basin Index (%) 125* 221 MADISON HEADWATERS IN WYOMING Black Bear 8160 .8 .9 89* 2.6 2.0 130 Canyon 7870 .2 .0 * 1.6 1.1 145 Madison Plateau 7710 .3 .3 100* 2.2 1.4 157 West Yellowstone 6680 .2 .0 * 1.4 .8 175 Whiskey Creek 6790 .2 .0 * 2.0 1.2 167 ----- ----- Basin Index (%) 142* 151 YELLOWSTONE HEADWATERS IN WYOMING Beartooth Lake 9360 .6 1.0 60* 1.9 1.1 173 Canyon 7870 .2 .0 * 1.6 1.1 145 Evening Star 9040 .5 1.0 50* 2.8 1.8 156 Fisher Creek 9110 .8 1.2 67* 2.9 1.6 181 Monument Peak 8740 .7 .7 100* 3.0 1.6 188 Northeast Entrance 7420 .1 .0 * 1.9 .8 238 Parker Peak 9420 .4 1.2 33* 2.4 1.4 171 Sylvan Lake 8440 .3 .5 60* 2.8 1.7 165 Thumb Divide 7970 .2 .0 * 2.3 1.0 230 Two Ocean Plateau 9240 1.1 1.2 92* 3.0 1.5 200 White Mill 8730 .6 .8 75* 2.3 1.2 192 Wolverine 7650 .0 .0 * 1.4 1.0 140 ----- ----- Basin Index (%) 72* 179 WIND RIVER Burroughs Creek 8760 .0 -M * 3.6 -M * Castle Creek 8410 .3 .0 * 1.5 .6 250 Cold Springs 9640 .1 .0 * 1.6 .8 200 Deer Park 9690 .1 .5 20* .7 1.2 58 Hobbs Park 10080 .0 .6 0* 1.2 .9 133 Kirwin 9580 .4 .7 57* 2.7 1.0 270 Little Warm 9370 .5 .0 * 2.6 .8 325 South Pass 9040 .2 .0 * .5 1.0 50 St. Lawrence Alt 8610 .0 -M * 1.1 -M * Togwotee Pass 9590 .6 1.0 60* 3.0 1.4 214 Townsend Creek 8720 .1 .0 * 1.2 1.0 120 ----- ----- Basin Index (%) 82* 172 BIGHORN BASIN Bald Mtn. 9360 1.7 1.6 106* 3.3 1.4 236 Bear Trap Meadow 8200 .2 .0 * 1.4 1.0 140 Bone Springs Div 9340 .0 1.0 0* 2.4 1.5 160 Grave Springs 8560 .1 .1 100* .9 1.0 90 Kirwin 9580 .4 .7 57* 2.7 1.0 270 Marquette 8800 .2 .2 100* 1.4 1.2 117 Middle Powder 7760 .3 .4 75* 1.2 1.0 120 Owl Creek 8990 .0 .0 * 2.0 .8 250 Powder River Pass 9480 .1 .4 25* 1.4 1.2 117 Shell Creek 9570 .6 1.6 38* 2.4 1.2 200 Timber Creek 7910 .0 .0 * 1.8 1.0 180 ----- ----- Basin Index (%) 60* 170 SHOSHONE RIVER Blackwater 9840 1.1 1.2 92* 2.5 1.6 156 Evening Star 9040 .5 1.0 50* 2.8 1.8 156 Marquette 8800 .2 .2 100* 1.4 1.2 117 Sylvan Lake 8440 .3 .5 60* 2.8 1.7 165 Sylvan Road 7140 .1 .0 * 2.0 1.2 167 Younts Peak 8340 .2 .2 100* 3.9 .9 433 ----- ----- Basin Index (%) 77* 183 POWDER RIVER Bear Trap Meadow 8200 .2 .0 * 1.4 1.0 140 Cloud Peak Reservoir 9830 .0 .6 0* 1.5 1.4 107 Grave Springs 8560 .1 .1 100* .9 1.0 90 Hansen Sawmill 8360 .0 .0 * 1.8 1.0 180 Middle Powder 7760 .3 .4 75* 1.2 1.0 120 Powder River Pass 9480 .1 .4 25* 1.4 1.2 117 Soldier Park 8680 .1 .0 * 1.6 1.2 133 ----- ----- Basin Index (%) 53* 126 TONGUE RIVER Big Goose 8010 .3 .2 150* 1.8 1.2 150 Bone Springs Div 9340 .0 1.0 0* 2.4 1.5 160 Burgess Junction 7900 .1 .4 25* 2.1 1.2 175 Dome Lake 8890 .2 .4 50* 2.2 1.2 183 Little Goose 8560 .2 .2 100* 1.9 1.4 136 Sucker Creek 8840 .2 .4 50* 2.2 1.2 183 Tie Creek 7050 .1 .0 * 1.8 1.0 180 ----- ----- Basin Index (%) 42* 166 BELLE FOURCHE Blind Park 6900 .0 .0 * 1.0 1.0 100 Cole Canyon 5930 .0 .0 * 1.6 .8 200 North Rapid Creek 6150 .2 .0 * .6 .7 86 ----- ----- Basin Index (%) * 128 CHEYENNE RIVER BASIN Blind Park 6900 .0 .0 * 1.0 1.0 100 North Rapid Creek 6150 .2 .0 * .6 .7 86 ----- ----- Basin Index (%) * 94 UPPER N. PLATTE Arapaho Ridge 10960 .0 1.0 0* 1.3 1.4 93 Blackhall Mtn 9830 .1 1.0 10* 2.0 1.4 143 Cinnabar Park 9670 .0 .1 0* 1.0 .9 111 Columbine 9170 .4 .0 * .9 1.4 64 Divide Peak 8700 .3 .0 * 1.8 1.4 129 Joe Wright 10140 .1 .3 33* 1.1 1.6 69 Laprele Creek 8370 .1 .0 * 2.3 .7 329 Med Bow 10500 .0 -M * 2.4 -M * Never Summer 10300 .1 .8 12* .8 1.5 53 North French Creek 10150 .2 .4 50* 2.1 1.5 140 Old Battle 9850 .2 .7 29* 3.6 1.6 225 Rawah 9100 .0 .0 * 1.0 1.4 71 Sage Creek Basin 7830 .1 .0 * 1.1 1.0 110 Sand Lake 10080 .1 .8 12* 1.8 1.2 150 South Brush Creek 8480 .0 .0 * 1.1 .8 138 Tower 10610 .0 .6 0* 1.9 2.0 95 Webber Springs 9250 .2 .0 * 2.6 1.4 186 Whiskey Park 8950 .1 .0 * 2.4 1.4 171 Willow Creek Pass 9520 .1 .1 100* .8 1.0 80 Zirkel 9320 .1 .0 * 1.8 1.7 106 ----- ----- Basin Index (%) 38* 124 SWEETWATER Deer Park 9690 .1 .5 20* .7 1.2 58 Larsen Creek 8880 .4 .0 * 1.0 .8 125 South Pass 9040 .2 .0 * .5 1.0 50 ----- ----- Basin Index (%) 140* 73 LOWER N. PLATTE Casper Mtn. 7940 .2 .1 200* 1.2 1.0 120 Laprele Creek 8370 .1 .0 * 2.3 .7 329 Reno Hill 8410 .0 .2 0* 1.3 1.0 130 Windy Peak 7900 .0 .0 * 1.4 .6 233 ----- ----- Basin Index (%) 100* 188 LARAMIE RIVER Brooklyn Lake 10250 .1 .0 * 1.1 .8 138 Cinnabar Park 9670 .0 .1 0* 1.0 .9 111 Crow Creek 8320 -M .0 * -M .7 * Deadman Hill 10240 .2 .6 33* .8 1.0 80 Rawah 9100 .0 .0 * 1.0 1.4 71 Roach 9710 .1 .2 50* .8 1.1 73 Windy Peak 7900 .0 .0 * 1.4 .6 233 ----- ----- Basin Index (%) 44* 105 S. PLATTE Crow Creek 8320 -M .0 * -M .7 * ----- ----- Basin Index (%) * * LITTLE SNAKE RIVER Battle Mountain 7460 .2 .0 * 2.3 .9 256 Divide Peak 8700 .3 .0 * 1.8 1.4 129 Elk River 8710 .2 .0 * 3.0 1.2 250 Elkhead Divide 8780 .1 -M * 3.2 -M * Little Snake River 8930 .1 .0 * 2.6 1.8 144 Old Battle 9850 .2 .7 29* 3.6 1.6 225 Sage Creek Basin 7830 .1 .0 * 1.1 1.0 110 Sandstone RS 8150 .0 .0 * 2.2 1.0 220 Whiskey Park 8950 .1 .0 * 2.4 1.4 171 ----- ----- Basin Index (%) 171* 184 UPPER GREEN RIVER Big Sandy Opening 9100 .7 .2 350* 1.1 1.0 110 Blind Bull Sum 8880 .1 .2 50* 1.6 .8 200 East Rim Divide 8010 .0 .0 * 1.7 .6 283 Elkhart Park G.S. 9410 .0 .0 * 1.9 1.0 190 Gros Ventre Summit 8760 .0 .2 0* -M .9 * Gunsight Pass 9830 1.1 .0 * 2.9 1.0 290 Indian Creek 9400 .7 .2 350* 2.7 1.0 270 Kendall R.S. 7790 .2 .0 * 2.3 .7 329 Larsen Creek 8880 .4 .0 * 1.0 .8 125 Loomis Park 8240 .1 .0 * 1.8 .9 200 New Fork Lake 8380 .0 .0 * -M .6 * Pocket Creek 9370 -M -M * -M -M * Snider Basin 8080 .1 .0 * 1.0 .6 167 Spring Creek Divide 9020 .4 .1 400* 2.3 .8 288 Triple Peak 8520 .2 .0 * 2.0 1.0 200 ----- ----- Basin Index (%) 444* 219 LOWER GREEN RIVER Blacks Fork Jct 8880 .2 -M * .7 -M * Buck Pasture 9620 .0 -M * 1.4 -M * EF Blacks Fork GS 9360 .1 -M * .7 -M * Hams Fork 7870 .0 .0 * 1.2 .6 200 Henrys Fork 10180 -M -M * 1.5 -M * Hewinta 9510 .1 .0 * .6 1.0 60 Hickerson Park 9130 .2 .0 * 1.2 .7 171 Hole-in-Rock 9170 .0 .0 * .7 .8 88 Indian Creek 9400 .7 .2 350* 2.7 1.0 270 Kelley R.S. 8240 .1 .0 * 2.4 .7 343 Spirit Lk 10240 .0 .0 * 3.4 1.0 340 Steel Creek Park 10140 .0 .0 * 1.0 1.0 100 ----- ----- Basin Index (%) 550* 194 UPPER BEAR RIVER Bear River RS 8510 .0 -M * .7 -M * Bug Lake 7980 .0 .0 * 2.6 .6 433 Burts Miller Ranch 7900 .1 .0 * .7 .3 233 Chalk Creek #1 9160 .2 .0 * 1.9 1.2 158 Giveout 6940 .0 .0 * 1.6 .7 229 Hayden Fork 9160 .0 .0 * 1.3 1.0 130 Kelley R.S. 8240 .1 .0 * 2.4 .7 343 Lily Lake 9130 .0 .0 * .8 1.1 73 Monte Cristo 8930 .2 .0 * 3.1 .8 388 Salt River Summit 7630 .0 .0 * 1.8 .8 225 Spring Creek Divide 9020 .4 .1 400* 2.3 .8 288 Trial Lake 9970 .9 .0 * 1.5 .9 167 ----- ----- Basin Index (%) 1900* 225 ----------------------------------------------------------------------------- -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.