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 19 , 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 * 3.4 1.2 283 Blind Bull Sum 8880 .0 .4 0* 1.5 1.0 150 Cottonwood Creek 7710 .0 .0 * 3.0 1.4 214 East Rim Divide 8010 .0 .0 * 1.7 .6 283 Grand Targhee 9260 1.6 2.4 67* 4.9 2.6 188 Granite Creek 6770 .0 .0 * 2.1 .8 262 Grassy Lake 7330 .0 .0 * 2.7 1.8 150 Gros Ventre Summit 8760 .0 .6 0* -M 1.0 * Gunsight Pass 9830 .8 .2 400* 3.0 1.1 273 Lewis Lake Divide 7880 .1 .0 * 2.8 1.6 175 Loomis Park 8240 .0 .0 * 1.9 .9 211 Phillips Bench 8160 .0 .0 * 2.8 1.3 215 Salt River Summit 7630 .0 .0 * 1.9 .8 238 Snake River Station 6900 .0 .0 * 2.1 1.0 210 Somsen Ranch 6830 .0 .0 * 3.2 1.0 320 Spring Creek Divide 9020 .1 .4 25* 2.4 1.1 218 Thumb Divide 7970 .0 .0 * 2.7 1.2 225 Togwotee Pass 9590 .7 1.4 50* 3.8 1.6 238 Triple Peak 8520 .1 .2 50* 2.1 1.2 175 Two Ocean Plateau 9240 1.7 1.8 94* 3.9 1.6 244 Willow Creek 8060 .0 .0 * 4.0 2.0 200 Younts Peak 8340 .2 .3 67* 4.5 1.0 450 ----- ----- Basin Index (%) 69* 225 MADISON HEADWATERS IN WYOMING Black Bear 8160 .8 1.5 53* 3.3 2.1 157 Canyon 7870 .2 .1 200* 2.2 1.2 183 Madison Plateau 7710 .1 .5 20* 3.1 1.7 182 West Yellowstone 6680 .0 .0 * 2.3 .8 288 Whiskey Creek 6790 .2 .0 * 3.0 1.2 250 ----- ----- Basin Index (%) 62* 199 YELLOWSTONE HEADWATERS IN WYOMING Beartooth Lake 9360 1.2 1.3 92* 2.6 1.4 186 Canyon 7870 .2 .1 200* 2.2 1.2 183 Evening Star 9040 .8 1.1 73* 3.8 2.1 181 Fisher Creek 9110 1.6 1.4 114* 4.1 1.8 228 Monument Peak 8740 1.4 1.0 140* 3.9 1.6 244 Northeast Entrance 7420 .0 .0 * 2.7 .9 300 Parker Peak 9420 1.0 1.2 83* 3.1 1.8 172 Sylvan Lake 8440 .2 .6 33* 3.8 2.0 190 Thumb Divide 7970 .0 .0 * 2.7 1.2 225 Two Ocean Plateau 9240 1.7 1.8 94* 3.9 1.6 244 White Mill 8730 1.2 1.0 120* 3.2 1.4 229 Wolverine 7650 .0 .0 * 2.0 1.2 167 ----- ----- Basin Index (%) 98* 209 WIND RIVER Burroughs Creek 8760 .0 -M * 3.7 -M * Castle Creek 8410 .2 .0 * 1.7 .8 212 Cold Springs 9640 .1 .0 * 1.8 .9 200 Deer Park 9690 .7 .3 233* 1.3 1.3 100 Hobbs Park 10080 .0 .8 0* 1.4 1.1 127 Kirwin 9580 .7 .9 78* 3.4 1.2 283 Little Warm 9370 .4 .4 100* 2.8 1.0 280 South Pass 9040 .6 .1 600* 1.2 1.1 109 St. Lawrence Alt 8610 .0 -M * 1.2 -M * Togwotee Pass 9590 .7 1.4 50* 3.8 1.6 238 Townsend Creek 8720 .3 .0 * 1.6 1.2 133 ----- ----- Basin Index (%) 95* 186 BIGHORN BASIN Bald Mtn. 9360 2.0 2.0 100* 3.9 1.7 229 Bear Trap Meadow 8200 1.0 .1 1000* 3.3 1.1 300 Bone Springs Div 9340 .5 1.4 36* 3.1 1.7 182 Grave Springs 8560 .8 .1 800* 3.3 1.0 330 Kirwin 9580 .7 .9 78* 3.4 1.2 283 Marquette 8800 .2 .2 100* 1.8 1.3 138 Middle Powder 7760 1.4 .3 467* 3.6 1.2 300 Owl Creek 8990 .2 .2 100* 2.3 1.0 230 Powder River Pass 9480 1.0 .7 143* 3.6 1.4 257 Shell Creek 9570 .8 1.8 44 3.3 1.4 236 Timber Creek 7910 .0 .0 * 1.9 1.2 158 ----- ----- Basin Index (%) 112* 236 SHOSHONE RIVER Blackwater 9840 1.5 1.6 94* 2.8 1.8 156 Evening Star 9040 .8 1.1 73* 3.8 2.1 181 Marquette 8800 .2 .2 100* 1.8 1.3 138 Sylvan Lake 8440 .2 .6 33* 3.8 2.0 190 Sylvan Road 7140 .0 .0 * 2.6 1.3 200 Younts Peak 8340 .2 .3 67* 4.5 1.0 450 ----- ----- Basin Index (%) 76* 203 POWDER RIVER Bear Trap Meadow 8200 1.0 .1 1000* 3.3 1.1 300 Cloud Peak Reservoir 9830 .3 .9 33* 2.6 1.8 144 Grave Springs 8560 .8 .1 800* 3.3 1.0 330 Hansen Sawmill 8360 .4 .0 * 3.6 1.2 300 Middle Powder 7760 1.4 .3 467* 3.6 1.2 300 Powder River Pass 9480 1.0 .7 143* 3.6 1.4 257 Soldier Park 8680 .2 .0 * 2.4 1.2 200 ----- ----- Basin Index (%) 243* 252 TONGUE RIVER Big Goose 8010 .5 .4 125* 2.4 1.3 185 Bone Springs Div 9340 .5 1.4 36* 3.1 1.7 182 Burgess Junction 7900 .5 .4 125* 2.9 1.4 207 Dome Lake 8890 .4 .8 50* 2.9 1.5 193 Little Goose 8560 .4 .0 * 2.5 1.4 179 Sucker Creek 8840 .4 .6 67* 2.8 1.4 200 Tie Creek 7050 .4 .0 * 2.6 1.2 217 ----- ----- Basin Index (%) 86* 194 BELLE FOURCHE Blind Park 6900 .2 .0 * 2.9 1.1 264 Cole Canyon 5930 .0 .0 * 3.0 1.0 300 North Rapid Creek 6150 .1 .0 * 2.1 .9 233 ----- ----- Basin Index (%) * 267 CHEYENNE RIVER BASIN Blind Park 6900 .2 .0 * 2.9 1.1 264 North Rapid Creek 6150 .1 .0 * 2.1 .9 233 ----- ----- Basin Index (%) * 250 UPPER N. PLATTE Arapaho Ridge 10960 .0 1.0 0* 1.6 1.6 100 Blackhall Mtn 9830 .1 1.1 9* 2.5 2.4 104 Cinnabar Park 9670 .0 .3 0* 1.4 1.5 93 Columbine 9170 .4 .0 * 1.0 1.8 56 Divide Peak 8700 .3 .2 150* 2.2 1.6 138 Joe Wright 10140 .2 .3 67* 1.4 2.2 64 Laprele Creek 8370 .1 .0 * 2.7 1.0 270 Med Bow 10500 .5 -M * 3.3 -M * Never Summer 10300 .3 .8 38* .9 1.8 50 North French Creek 10150 .4 .6 67* 2.8 1.8 156 Old Battle 9850 .4 1.2 33* 4.4 2.0 220 Rawah 9100 .0 .0 * 1.3 1.6 81 Sage Creek Basin 7830 .1 .0 * 1.5 1.1 136 Sand Lake 10080 .5 1.2 42* 2.7 1.6 169 South Brush Creek 8480 .0 .0 * 1.5 .9 167 Tower 10610 .0 1.0 0* 2.0 2.3 87 Webber Springs 9250 .1 .3 33* 3.0 1.6 188 Whiskey Park 8950 .0 .0 * 3.0 1.8 167 Willow Creek Pass 9520 .1 .2 50* 1.1 1.1 100 Zirkel 9320 .1 .0 * 2.0 2.2 91 ----- ----- Basin Index (%) 38* 122 SWEETWATER Deer Park 9690 .7 .3 233* 1.3 1.3 100 Larsen Creek 8880 .4 .0 * 1.4 .8 175 South Pass 9040 .6 .1 600* 1.2 1.1 109 ----- ----- Basin Index (%) 425* 122 LOWER N. PLATTE Casper Mtn. 7940 .5 .0 * 2.0 1.1 182 Laprele Creek 8370 .1 .0 * 2.7 1.0 270 Reno Hill 8410 .1 .5 20* 2.0 1.2 167 Windy Peak 7900 .0 .0 * 2.5 .8 312 ----- ----- Basin Index (%) 140* 224 LARAMIE RIVER Brooklyn Lake 10250 .3 .0 * 1.5 1.0 150 Cinnabar Park 9670 .0 .3 0* 1.4 1.5 93 Crow Creek 8320 .1 .0 * 1.3 .8 162 Deadman Hill 10240 .3 1.1 27* .9 1.3 69 Rawah 9100 .0 .0 * 1.3 1.6 81 Roach 9710 .2 .4 50* 1.2 1.2 100 Windy Peak 7900 .0 .0 * 2.5 .8 312 ----- ----- Basin Index (%) 50* 123 S. PLATTE Crow Creek 8320 .1 .0 * 1.3 .8 162 ----- ----- Basin Index (%) * 162 LITTLE SNAKE RIVER Battle Mountain 7460 .1 .0 * 2.5 1.2 208 Divide Peak 8700 .3 .2 150* 2.2 1.6 138 Elk River 8710 .3 .0 * 3.3 1.4 236 Elkhead Divide 8780 .0 -M * 3.5 -M * Little Snake River 8930 .0 .0 * 3.2 2.5 128 Old Battle 9850 .4 1.2 33* 4.4 2.0 220 Sage Creek Basin 7830 .1 .0 * 1.5 1.1 136 Sandstone RS 8150 .0 .0 * 2.3 1.1 209 Whiskey Park 8950 .0 .0 * 3.0 1.8 167 ----- ----- Basin Index (%) 86* 176 UPPER GREEN RIVER Big Sandy Opening 9100 .7 .6 117* 1.0 1.0 100 Blind Bull Sum 8880 .0 .4 0* 1.5 1.0 150 East Rim Divide 8010 .0 .0 * 1.7 .6 283 Elkhart Park G.S. 9410 .0 .1 0* 2.1 1.4 150 Gros Ventre Summit 8760 .0 .6 0* -M 1.0 * Gunsight Pass 9830 .8 .2 400* 3.0 1.1 273 Indian Creek 9400 .5 .5 100* 2.8 1.2 233 Kendall R.S. 7790 .0 .0 * 2.3 .8 288 Larsen Creek 8880 .4 .0 * 1.4 .8 175 Loomis Park 8240 .0 .0 * 1.9 .9 211 New Fork Lake 8380 .0 .0 * -M .7 * Pocket Creek 9370 -M -M * -M -M * Snider Basin 8080 .0 .0 * 1.0 .7 143 Spring Creek Divide 9020 .1 .4 25* 2.4 1.1 218 Triple Peak 8520 .1 .2 50* 2.1 1.2 175 ----- ----- Basin Index (%) 87* 197 LOWER GREEN RIVER Blacks Fork Jct 8880 .7 -M * 1.8 -M * Buck Pasture 9620 .3 -M * 2.6 -M * EF Blacks Fork GS 9360 .9 -M * 2.0 -M * Hams Fork 7870 .0 .0 * 1.3 .8 162 Henrys Fork 10180 -M -M * 3.0 -M * Hewinta 9510 .7 .0 * 2.2 1.0 220 Hickerson Park 9130 .7 .0 * 2.4 .7 343 Hole-in-Rock 9170 .6 .0 * 2.9 1.0 290 Indian Creek 9400 .5 .5 100* 2.8 1.2 233 Kelley R.S. 8240 .0 .0 * 2.7 .8 338 Spirit Lk 10240 .6 .0 * 4.3 1.1 391 Steel Creek Park 10140 1.3 .4 325* 2.7 1.0 270 ----- ----- Basin Index (%) 489* 280 UPPER BEAR RIVER Bear River RS 8510 .0 -M * 1.8 -M * Bug Lake 7980 .0 .0 * 2.7 .8 338 Burts Miller Ranch 7900 .0 .0 * 1.8 .6 300 Chalk Creek #1 9160 1.0 .0 * 3.4 1.4 243 Giveout 6940 .0 .0 * 1.9 .8 238 Hayden Fork 9160 .0 .0 * 2.4 1.3 185 Kelley R.S. 8240 .0 .0 * 2.7 .8 338 Lily Lake 9130 .0 .0 * 2.2 1.1 200 Monte Cristo 8930 .6 .0 * 3.9 1.2 325 Salt River Summit 7630 .0 .0 * 1.9 .8 238 Spring Creek Divide 9020 .1 .4 25* 2.4 1.1 218 Trial Lake 9970 1.1 .0 * 2.3 1.4 164 ----- ----- Basin Index (%) 700* 244 ----------------------------------------------------------------------------- -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.