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 22 , 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 * 3.8 1.4 271 Blind Bull Sum 8880 .1 .7 14* 1.7 1.0 170 Cottonwood Creek 7710 .0 .0 * 3.3 1.7 194 East Rim Divide 8010 .0 .0 * 1.8 .8 225 Grand Targhee 9260 2.3 2.5 92* 5.5 3.0 183 Granite Creek 6770 .0 .0 * 2.6 1.0 260 Grassy Lake 7330 .0 .0 * 3.4 2.2 155 Gros Ventre Summit 8760 .2 .8 25* -M 1.2 * Gunsight Pass 9830 1.2 .4 300* 3.4 1.4 243 Lewis Lake Divide 7880 .1 .0 * 3.6 1.8 200 Loomis Park 8240 .0 .0 * 2.2 1.3 169 Phillips Bench 8160 .0 .0 * 3.3 1.7 194 Salt River Summit 7630 .0 .0 * 2.0 1.0 200 Snake River Station 6900 .0 .0 * 2.9 1.4 207 Somsen Ranch 6830 .0 .0 * 3.4 1.2 283 Spring Creek Divide 9020 .2 .4 50* 2.6 1.2 217 Thumb Divide 7970 .0 .0 * 3.2 1.4 229 Togwotee Pass 9590 1.2 1.5 80* 4.4 2.0 220 Triple Peak 8520 .3 .4 75* 2.5 1.4 179 Two Ocean Plateau 9240 2.5 2.0 125* 4.5 2.0 225 Willow Creek 8060 .0 .0 * 4.4 2.4 183 Younts Peak 8340 .5 .6 83* 5.0 1.4 357 ----- ----- Basin Index (%) 92* 213 MADISON HEADWATERS IN WYOMING Black Bear 8160 1.4 1.7 82* 4.2 2.8 150 Canyon 7870 .3 .3 100* 2.6 1.4 186 Madison Plateau 7710 .1 .4 25* 3.5 1.8 194 West Yellowstone 6680 .0 .0 * 2.6 1.0 260 Whiskey Creek 6790 .2 .0 * 3.3 1.4 236 ----- ----- Basin Index (%) 83* 193 YELLOWSTONE HEADWATERS IN WYOMING Beartooth Lake 9360 1.8 1.6 112* 3.1 1.5 207 Canyon 7870 .3 .3 100* 2.6 1.4 186 Evening Star 9040 1.4 1.2 117* 4.4 2.2 200 Fisher Creek 9110 2.0 1.5 133* 4.6 2.2 209 Monument Peak 8740 1.9 1.2 158* 4.4 1.8 244 Northeast Entrance 7420 .0 .0 * 3.2 1.1 291 Parker Peak 9420 1.4 1.4 100* 3.6 2.0 180 Sylvan Lake 8440 .5 1.0 50* 4.3 2.0 215 Thumb Divide 7970 .0 .0 * 3.2 1.4 229 Two Ocean Plateau 9240 2.5 2.0 125* 4.5 2.0 225 White Mill 8730 1.6 1.0 160* 3.5 1.7 206 Wolverine 7650 .0 .0 * 2.4 1.4 171 ----- ----- Basin Index (%) 120* 212 WIND RIVER Burroughs Creek 8760 .0 -M * 3.9 -M * Castle Creek 8410 .2 .0 * 1.9 1.0 190 Cold Springs 9640 .2 .2 100* 2.2 1.0 220 Deer Park 9690 .7 .9 78* 1.4 1.4 100 Hobbs Park 10080 .1 1.2 8* 1.7 1.4 121 Kirwin 9580 1.0 1.0 100* 3.7 1.2 308 Little Warm 9370 .9 .6 150* 3.2 1.2 267 South Pass 9040 .6 .4 150* 1.2 1.3 92 St. Lawrence Alt 8610 .0 -M * 1.3 -M * Togwotee Pass 9590 1.2 1.5 80* 4.4 2.0 220 Townsend Creek 8720 .1 .0 * 1.7 1.3 131 ----- ----- Basin Index (%) 86* 181 BIGHORN BASIN Bald Mtn. 9360 2.5 2.1 119* 4.3 2.0 215 Bear Trap Meadow 8200 .9 .2 450* 3.8 1.2 317 Bone Springs Div 9340 .8 1.5 53* 3.3 1.8 183 Grave Springs 8560 1.0 .2 500* 3.7 1.1 336 Kirwin 9580 1.0 1.0 100* 3.7 1.2 308 Marquette 8800 .6 .6 100* 2.2 1.4 157 Middle Powder 7760 1.5 .4 375* 4.3 1.4 307 Owl Creek 8990 .0 .0 * 2.3 1.0 230 Powder River Pass 9480 1.5 1.0 150* 4.3 1.5 287 Shell Creek 9570 1.3 2.1 62 3.8 1.7 224 Timber Creek 7910 .0 .0 * 2.1 1.3 162 ----- ----- Basin Index (%) 122* 242 SHOSHONE RIVER Blackwater 9840 2.4 1.7 141* 3.6 2.0 180 Evening Star 9040 1.4 1.2 117* 4.4 2.2 200 Marquette 8800 .6 .6 100* 2.2 1.4 157 Sylvan Lake 8440 .5 1.0 50* 4.3 2.0 215 Sylvan Road 7140 .0 .0 * 3.1 1.4 221 Younts Peak 8340 .5 .6 83* 5.0 1.4 357 ----- ----- Basin Index (%) 106* 217 POWDER RIVER Bear Trap Meadow 8200 .9 .2 450* 3.8 1.2 317 Cloud Peak Reservoir 9830 .6 1.0 60* 3.3 2.0 165 Grave Springs 8560 1.0 .2 500* 3.7 1.1 336 Hansen Sawmill 8360 .4 .0 * 4.0 1.2 333 Middle Powder 7760 1.5 .4 375* 4.3 1.4 307 Powder River Pass 9480 1.5 1.0 150* 4.3 1.5 287 Soldier Park 8680 .1 .0 * 2.5 1.5 167 ----- ----- Basin Index (%) 214* 262 TONGUE RIVER Big Goose 8010 .4 .4 100* 2.7 1.5 180 Bone Springs Div 9340 .8 1.5 53* 3.3 1.8 183 Burgess Junction 7900 .6 .6 100* 3.2 1.6 200 Dome Lake 8890 .6 .9 67* 3.2 1.6 200 Little Goose 8560 .4 .0 * 2.8 1.6 175 Sucker Creek 8840 .6 1.0 60* 3.2 1.6 200 Tie Creek 7050 .2 .0 * 2.8 1.4 200 ----- ----- Basin Index (%) 82* 191 BELLE FOURCHE Blind Park 6900 .2 .0 * 3.2 1.2 267 Cole Canyon 5930 .0 .0 * 3.2 1.0 320 North Rapid Creek 6150 .2 .0 * 2.4 1.1 218 ----- ----- Basin Index (%) * 267 CHEYENNE RIVER BASIN Blind Park 6900 .2 .0 * 3.2 1.2 267 North Rapid Creek 6150 .2 .0 * 2.4 1.1 218 ----- ----- Basin Index (%) * 243 UPPER N. PLATTE Arapaho Ridge 10960 .1 1.4 7* 1.7 1.9 89 Blackhall Mtn 9830 .4 1.2 33* 2.9 3.0 97 Cinnabar Park 9670 .3 .7 43* 1.8 1.8 100 Columbine 9170 .4 .0 * 1.4 2.0 70 Divide Peak 8700 .3 .3 100* 2.4 2.2 109 Joe Wright 10140 .5 .4 125* 1.9 2.6 73 Laprele Creek 8370 .3 .0 * 3.0 1.2 250 Med Bow 10500 1.0 -M * 3.9 -M * Never Summer 10300 .8 1.4 57* 1.0 1.9 53 North French Creek 10150 .8 1.0 80* 3.2 2.1 152 Old Battle 9850 .7 1.2 58* 4.7 2.5 188 Rawah 9100 .0 .0 * 1.5 1.8 83 Sage Creek Basin 7830 .1 .0 * 1.7 1.1 155 Sand Lake 10080 1.0 1.7 59* 3.2 1.8 178 South Brush Creek 8480 .1 .0 * 1.8 1.4 129 Tower 10610 .3 1.4 21* 2.4 2.6 92 Webber Springs 9250 .3 .4 75* 3.2 2.3 139 Whiskey Park 8950 .1 .4 25* 3.4 2.1 162 Willow Creek Pass 9520 .2 .2 100* 1.2 1.4 86 Zirkel 9320 .2 .0 * 2.4 2.6 92 ----- ----- Basin Index (%) 59* 117 SWEETWATER Deer Park 9690 .7 .9 78* 1.4 1.4 100 Larsen Creek 8880 .4 .0 * 1.4 .9 156 South Pass 9040 .6 .4 150* 1.2 1.3 92 ----- ----- Basin Index (%) 131* 111 LOWER N. PLATTE Casper Mtn. 7940 .3 .0 * 2.4 1.2 200 Laprele Creek 8370 .3 .0 * 3.0 1.2 250 Reno Hill 8410 .3 .6 50* 2.6 1.5 173 Windy Peak 7900 .0 .0 * 2.7 1.0 270 ----- ----- Basin Index (%) 150* 218 LARAMIE RIVER Brooklyn Lake 10250 .8 .2 400* 2.1 1.4 150 Cinnabar Park 9670 .3 .7 43* 1.8 1.8 100 Crow Creek 8320 .0 .0 * 1.3 1.0 130 Deadman Hill 10240 .6 1.3 46* 1.1 1.6 69 Rawah 9100 .0 .0 * 1.5 1.8 83 Roach 9710 .3 .6 50* 1.3 1.4 93 Windy Peak 7900 .0 .0 * 2.7 1.0 270 ----- ----- Basin Index (%) 71* 118 S. PLATTE Crow Creek 8320 .0 .0 * 1.3 1.0 130 ----- ----- Basin Index (%) * 130 LITTLE SNAKE RIVER Battle Mountain 7460 .0 .0 * 2.7 1.2 225 Divide Peak 8700 .3 .3 100* 2.4 2.2 109 Elk River 8710 .3 .0 * 3.5 1.6 219 Elkhead Divide 8780 .0 -M * 3.5 -M * Little Snake River 8930 .0 .0 * 3.5 2.8 125 Old Battle 9850 .7 1.2 58* 4.7 2.5 188 Sage Creek Basin 7830 .1 .0 * 1.7 1.1 155 Sandstone RS 8150 .0 .0 * 2.5 1.2 208 Whiskey Park 8950 .1 .4 25* 3.4 2.1 162 ----- ----- Basin Index (%) 79* 166 UPPER GREEN RIVER Big Sandy Opening 9100 .8 .7 114* 1.1 1.2 92 Blind Bull Sum 8880 .1 .7 14* 1.7 1.0 170 East Rim Divide 8010 .0 .0 * 1.8 .8 225 Elkhart Park G.S. 9410 .0 .4 0* 2.2 1.4 157 Gros Ventre Summit 8760 .2 .8 25* -M 1.2 * Gunsight Pass 9830 1.2 .4 300* 3.4 1.4 243 Indian Creek 9400 .4 .8 50* 3.0 1.6 188 Kendall R.S. 7790 .0 .0 * 2.7 .9 300 Larsen Creek 8880 .4 .0 * 1.4 .9 156 Loomis Park 8240 .0 .0 * 2.2 1.3 169 New Fork Lake 8380 .0 .0 * -M .8 * Pocket Creek 9370 -M -M * -M -M * Snider Basin 8080 .0 .0 * 1.2 .8 150 Spring Creek Divide 9020 .2 .4 50* 2.6 1.2 217 Triple Peak 8520 .3 .4 75* 2.5 1.4 179 ----- ----- Basin Index (%) 78* 186 LOWER GREEN RIVER Blacks Fork Jct 8880 .2 -M * 1.9 -M * Buck Pasture 9620 .0 -M * 2.9 -M * EF Blacks Fork GS 9360 .5 .0 * 2.3 1.2 192 Hams Fork 7870 .0 .0 * 1.5 .9 167 Henrys Fork 10180 -M -M * 3.2 -M * Hewinta 9510 .0 .0 * 2.4 1.3 185 Hickerson Park 9130 .0 .0 * 2.6 1.0 260 Hole-in-Rock 9170 .1 .0 * 3.2 1.2 267 Indian Creek 9400 .4 .8 50* 3.0 1.6 188 Kelley R.S. 8240 .0 .0 * 2.8 1.0 280 Spirit Lk 10240 .5 .0 * 4.5 1.4 321 Steel Creek Park 10140 1.5 .6 250* 3.0 1.5 200 ----- ----- Basin Index (%) 214* 228 UPPER BEAR RIVER Bear River RS 8510 .0 -M * 1.8 -M * Bug Lake 7980 .0 .0 * 2.9 1.2 242 Burts Miller Ranch 7900 .0 .0 * 1.9 .7 271 Chalk Creek #1 9160 .8 .0 * 3.5 1.6 219 Giveout 6940 .0 .0 * 2.0 .9 222 Hayden Fork 9160 .0 .0 * 2.5 1.6 156 Kelley R.S. 8240 .0 .0 * 2.8 1.0 280 Lily Lake 9130 .0 .0 * 2.2 1.5 147 Monte Cristo 8930 .2 .0 * 4.0 1.6 250 Salt River Summit 7630 .0 .0 * 2.0 1.0 200 Spring Creek Divide 9020 .2 .4 50* 2.6 1.2 217 Trial Lake 9970 .9 .1 900* 2.4 1.4 171 ----- ----- Basin Index (%) 420* 210 ----------------------------------------------------------------------------- -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.