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 THURSDAY: OCTOBER 23 , 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 * 3.7 1.5 247 Blind Bull Sum 8880 .2 .7 29* 1.8 1.3 138 Cottonwood Creek 7710 .0 .0 * 3.3 1.8 183 East Rim Divide 8010 .0 .0 * 1.9 .9 211 Grand Targhee 9260 2.4 2.5 96* 5.6 3.4 165 Granite Creek 6770 .0 .0 * 2.6 1.2 217 Grassy Lake 7330 .0 .2 0* 3.4 2.2 155 Gros Ventre Summit 8760 .4 .9 44* -M 1.3 * Gunsight Pass 9830 1.3 .6 217* 3.5 1.5 233 Lewis Lake Divide 7880 .1 .0 * 3.6 2.1 171 Loomis Park 8240 .1 .2 50* 2.2 1.4 157 Phillips Bench 8160 .1 .1 100* 3.4 1.9 179 Salt River Summit 7630 .0 .0 * 2.1 1.2 175 Snake River Station 6900 .0 .0 * 2.9 1.4 207 Somsen Ranch 6830 .1 .0 * 3.4 1.3 262 Spring Creek Divide 9020 .3 .5 60* 2.6 1.2 217 Thumb Divide 7970 .1 .0 * 3.2 1.4 229 Togwotee Pass 9590 1.2 1.6 75* 4.4 2.0 220 Triple Peak 8520 .4 .4 100* 2.6 1.6 162 Two Ocean Plateau 9240 2.6 2.4 108* 4.6 2.2 209 Willow Creek 8060 .0 .2 0* 4.4 2.4 183 Younts Peak 8340 .7 .7 100* 5.1 1.4 364 ----- ----- Basin Index (%) 91* 199 MADISON HEADWATERS IN WYOMING Black Bear 8160 1.5 1.8 83* 4.3 2.8 154 Canyon 7870 .3 .4 75* 2.6 1.4 186 Madison Plateau 7710 .1 .7 14* 3.5 1.8 194 West Yellowstone 6680 .0 .0 * 2.6 1.1 236 Whiskey Creek 6790 .2 .0 * 3.3 1.4 236 ----- ----- Basin Index (%) 72* 192 YELLOWSTONE HEADWATERS IN WYOMING Beartooth Lake 9360 1.8 1.6 112* 3.1 1.5 207 Canyon 7870 .3 .4 75* 2.6 1.4 186 Evening Star 9040 1.4 1.3 108* 4.5 2.3 196 Fisher Creek 9110 2.0 1.8 111* 4.7 2.4 196 Monument Peak 8740 2.0 1.3 154* 4.4 1.9 232 Northeast Entrance 7420 .0 .0 * 3.2 1.2 267 Parker Peak 9420 1.6 1.4 114* 3.7 2.0 185 Sylvan Lake 8440 .4 1.0 40* 4.3 2.0 215 Thumb Divide 7970 .1 .0 * 3.2 1.4 229 Two Ocean Plateau 9240 2.6 2.4 108* 4.6 2.2 209 White Mill 8730 1.6 1.2 133* 3.6 1.8 200 Wolverine 7650 .0 .0 * 2.4 1.4 171 ----- ----- Basin Index (%) 111* 206 WIND RIVER Burroughs Creek 8760 .0 -M * 4.0 -M * Castle Creek 8410 .3 .0 * 1.9 1.1 173 Cold Springs 9640 .3 .3 100* 2.1 1.3 162 Deer Park 9690 .7 .8 88* 1.5 1.4 107 Hobbs Park 10080 .2 1.3 15* 1.8 1.6 112 Kirwin 9580 1.0 1.2 83* 3.8 1.4 271 Little Warm 9370 .9 .8 112* 3.3 1.3 254 South Pass 9040 .5 .5 100* 1.3 1.5 87 St. Lawrence Alt 8610 .0 -M * 1.3 -M * Togwotee Pass 9590 1.2 1.6 75* 4.4 2.0 220 Townsend Creek 8720 .1 .2 50* 1.8 1.5 120 ----- ----- Basin Index (%) 78* 167 BIGHORN BASIN Bald Mtn. 9360 2.6 2.2 118 4.4 2.1 210 Bear Trap Meadow 8200 .9 .3 300* 3.9 1.2 325 Bone Springs Div 9340 1.0 1.6 62* 3.4 2.0 170 Grave Springs 8560 1.0 .4 250* 3.7 1.2 308 Kirwin 9580 1.0 1.2 83* 3.8 1.4 271 Marquette 8800 .6 .7 86* 2.3 1.5 153 Middle Powder 7760 1.5 .4 375* 4.3 1.6 269 Owl Creek 8990 .0 .4 0* 2.4 1.0 240 Powder River Pass 9480 1.5 1.0 150* 4.4 1.6 275 Shell Creek 9570 1.3 2.4 54 3.8 2.0 190 Timber Creek 7910 .0 .2 0* 2.2 1.4 157 ----- ----- Basin Index (%) 106* 227 SHOSHONE RIVER Blackwater 9840 2.4 1.7 141* 3.7 2.0 185 Evening Star 9040 1.4 1.3 108* 4.5 2.3 196 Marquette 8800 .6 .7 86* 2.3 1.5 153 Sylvan Lake 8440 .4 1.0 40* 4.3 2.0 215 Sylvan Road 7140 .0 .0 * 3.2 1.4 229 Younts Peak 8340 .7 .7 100* 5.1 1.4 364 ----- ----- Basin Index (%) 102* 218 POWDER RIVER Bear Trap Meadow 8200 .9 .3 300* 3.9 1.2 325 Cloud Peak Reservoir 9830 .6 1.2 50* 3.3 2.0 165 Grave Springs 8560 1.0 .4 250* 3.7 1.2 308 Hansen Sawmill 8360 .3 .0 * 3.9 1.3 300 Middle Powder 7760 1.5 .4 375* 4.3 1.6 269 Powder River Pass 9480 1.5 1.0 150* 4.4 1.6 275 Soldier Park 8680 .1 .0 * 2.6 1.5 173 ----- ----- Basin Index (%) 179* 251 TONGUE RIVER Big Goose 8010 .4 .4 100* 2.7 1.5 180 Bone Springs Div 9340 1.0 1.6 62* 3.4 2.0 170 Burgess Junction 7900 .6 .8 75* 3.2 1.8 178 Dome Lake 8890 .6 1.0 60* 3.2 1.9 168 Little Goose 8560 .3 .0 * 2.9 1.6 181 Sucker Creek 8840 .6 1.1 55* 3.2 1.6 200 Tie Creek 7050 .2 .0 * 2.8 1.6 175 ----- ----- Basin Index (%) 76* 178 BELLE FOURCHE Blind Park 6900 .1 .0 * 3.2 1.3 246 Cole Canyon 5930 .0 .0 * 3.2 1.2 267 North Rapid Creek 6150 .2 .0 * 2.4 1.1 218 ----- ----- Basin Index (%) * 244 CHEYENNE RIVER BASIN Blind Park 6900 .1 .0 * 3.2 1.3 246 North Rapid Creek 6150 .2 .0 * 2.4 1.1 218 ----- ----- Basin Index (%) * 233 UPPER N. PLATTE Arapaho Ridge 10960 .1 1.6 6* 1.7 2.2 77 Blackhall Mtn 9830 .3 1.6 19* 2.9 3.2 91 Cinnabar Park 9670 .3 .8 38* 1.8 1.8 100 Columbine 9170 .4 .0 * 1.5 2.0 75 Divide Peak 8700 .3 .6 50* 2.4 2.3 104 Joe Wright 10140 .2 .8 25* 1.9 2.6 73 Laprele Creek 8370 .3 .0 * 3.1 1.2 258 Med Bow 10500 1.1 -M * 3.9 -M * Never Summer 10300 .9 1.6 56* 1.0 1.9 53 North French Creek 10150 .9 1.1 82* 3.2 2.2 145 Old Battle 9850 .7 1.2 58* 4.8 2.6 185 Rawah 9100 .0 .3 0* 1.6 2.0 80 Sage Creek Basin 7830 .1 .0 * 1.7 1.7 100 Sand Lake 10080 1.0 2.0 50* 3.2 2.1 152 South Brush Creek 8480 .0 .2 0* 1.8 1.5 120 Tower 10610 .3 1.2 25* 2.5 2.8 89 Webber Springs 9250 .2 .5 40* 3.2 2.3 139 Whiskey Park 8950 .0 .4 0* 3.4 2.4 142 Willow Creek Pass 9520 .2 .4 50* 1.2 1.4 86 Zirkel 9320 .1 .2 50* 2.4 2.6 92 ----- ----- Basin Index (%) 43* 111 SWEETWATER Deer Park 9690 .7 .8 88* 1.5 1.4 107 Larsen Creek 8880 .4 .0 * 1.5 1.2 125 South Pass 9040 .5 .5 100* 1.3 1.5 87 ----- ----- Basin Index (%) 123* 105 LOWER N. PLATTE Casper Mtn. 7940 .3 .1 300* 2.5 1.4 179 Laprele Creek 8370 .3 .0 * 3.1 1.2 258 Reno Hill 8410 .4 .6 67* 2.6 1.6 162 Windy Peak 7900 .0 .0 * 2.7 1.1 245 ----- ----- Basin Index (%) 143* 206 LARAMIE RIVER Brooklyn Lake 10250 .5 .3 167* 2.1 1.4 150 Cinnabar Park 9670 .3 .8 38* 1.8 1.8 100 Crow Creek 8320 .1 .0 * 1.3 1.5 87 Deadman Hill 10240 .7 1.2 58* 1.1 2.0 55 Rawah 9100 .0 .3 0* 1.6 2.0 80 Roach 9710 .2 .6 33* 1.3 1.8 72 Windy Peak 7900 .0 .0 * 2.7 1.1 245 ----- ----- Basin Index (%) 56* 103 S. PLATTE Crow Creek 8320 .1 .0 * 1.3 1.5 87 ----- ----- Basin Index (%) * 87 LITTLE SNAKE RIVER Battle Mountain 7460 .1 .0 * 2.7 1.4 193 Divide Peak 8700 .3 .6 50* 2.4 2.3 104 Elk River 8710 .3 .0 * 3.5 1.8 194 Elkhead Divide 8780 .0 -M * 3.5 -M * Little Snake River 8930 .0 .2 0* 3.5 2.8 125 Old Battle 9850 .7 1.2 58* 4.8 2.6 185 Sage Creek Basin 7830 .1 .0 * 1.7 1.7 100 Sandstone RS 8150 .0 .0 * 2.5 1.5 167 Whiskey Park 8950 .0 .4 0* 3.4 2.4 142 ----- ----- Basin Index (%) 62* 148 UPPER GREEN RIVER Big Sandy Opening 9100 .8 .8 100* 1.2 1.2 100 Blind Bull Sum 8880 .2 .7 29* 1.8 1.3 138 East Rim Divide 8010 .0 .0 * 1.9 .9 211 Elkhart Park G.S. 9410 .0 .6 0* 2.2 1.4 157 Gros Ventre Summit 8760 .4 .9 44* -M 1.3 * Gunsight Pass 9830 1.3 .6 217* 3.5 1.5 233 Indian Creek 9400 .3 1.0 30* 3.0 1.6 188 Kendall R.S. 7790 .1 .0 * 2.7 1.2 225 Larsen Creek 8880 .4 .0 * 1.5 1.2 125 Loomis Park 8240 .1 .2 50* 2.2 1.4 157 New Fork Lake 8380 .0 .0 * -M 1.0 * Pocket Creek 9370 -M -M * -M -M * Snider Basin 8080 .1 .0 * 1.3 1.0 130 Spring Creek Divide 9020 .3 .5 60* 2.6 1.2 217 Triple Peak 8520 .4 .4 100* 2.6 1.6 162 ----- ----- Basin Index (%) 77* 171 LOWER GREEN RIVER Blacks Fork Jct 8880 .3 .0 * 2.0 1.1 182 Buck Pasture 9620 .0 -M * 2.9 -M * EF Blacks Fork GS 9360 .3 .0 * 2.4 1.2 200 Hams Fork 7870 .0 .0 * 1.5 1.1 136 Henrys Fork 10180 -M -M * 3.1 -M * Hewinta 9510 .0 .0 * 2.5 1.3 192 Hickerson Park 9130 .4 .0 * 2.6 1.0 260 Hole-in-Rock 9170 .4 .0 * 3.3 1.4 236 Indian Creek 9400 .3 1.0 30* 3.0 1.6 188 Kelley R.S. 8240 .1 .1 100* 2.8 1.3 215 Spirit Lk 10240 .4 .0 * 4.5 1.4 321 Steel Creek Park 10140 1.5 .7 214* 2.9 1.6 181 ----- ----- Basin Index (%) 206* 212 UPPER BEAR RIVER Bear River RS 8510 .0 -M * 1.8 -M * Bug Lake 7980 .0 .0 * 2.8 1.3 215 Burts Miller Ranch 7900 .0 .0 * 1.9 .7 271 Chalk Creek #1 9160 .7 .0 * 3.6 1.8 200 Giveout 6940 .0 .0 * 2.0 1.1 182 Hayden Fork 9160 .0 .0 * 2.4 1.8 133 Kelley R.S. 8240 .1 .1 100* 2.8 1.3 215 Lily Lake 9130 .0 .0 * 2.2 1.5 147 Monte Cristo 8930 .2 .0 * 4.0 1.7 235 Salt River Summit 7630 .0 .0 * 2.1 1.2 175 Spring Creek Divide 9020 .3 .5 60* 2.6 1.2 217 Trial Lake 9970 1.0 .2 500* 2.4 1.5 160 ----- ----- Basin Index (%) 288* 191 ----------------------------------------------------------------------------- -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.