Supercell over Laramie
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Wyoming Snow Precipitation Update


United States Natural Resources Water and Climate Center 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 FRIDAY: OCTOBER 31 , 2025 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Median Med ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7040 .2 .2 100* 4.5 2.2 205 Blind Bull Sum 8880 1.0 1.4 71* 2.7 2.0 135 Cottonwood Creek 7710 .7 .9 78* 4.3 2.8 154 East Rim Divide 8010 .1 .2 50* 2.5 1.4 179 Grand Targhee 9260 3.6 4.4 82* 6.7 4.6 146 Granite Creek 6770 .4 .0 * 3.3 1.8 183 Grassy Lake 7330 .8 1.2 67* 4.9 3.5 140 Gros Ventre Summit 8760 .8 1.5 53 -M 1.8 * Gunsight Pass 9830 1.7 .8 212* 4.1 2.2 186 Lewis Lake Divide 7880 1.2 .8 150* 5.1 3.3 155 Loomis Park 8240 .4 .7 57* 2.8 1.9 147 Phillips Bench 8160 .8 1.3 62* 4.2 2.5 168 Salt River Summit 7630 .0 .1 0* 2.7 1.8 150 Snake River Station 6900 .4 .2 200* 3.7 2.6 142 Somsen Ranch 6830 .5 .0 * 4.2 1.9 221 Spring Creek Divide 9020 1.1 1.3 85* 3.8 2.3 165 Thumb Divide 7970 1.0 .3 333* 4.2 2.2 191 Togwotee Pass 9590 1.8 2.5 72* 5.2 3.0 173 Triple Peak 8520 1.3 1.2 108* 3.7 2.1 176 Two Ocean Plateau 9240 3.7 3.3 112* 5.6 3.0 187 Willow Creek 8060 1.0 .8 125* 6.1 3.8 161 Younts Peak 8340 1.3 1.4 93* 5.7 2.2 259 ----- ----- Basin Index (%) 97* 169 MADISON HEADWATERS IN WYOMING Black Bear 8160 2.4 2.6 92* 5.3 4.0 132 Canyon 7870 .4 .6 67* 3.0 1.8 167 Madison Plateau 7710 1.0 1.1 91* 4.7 2.8 168 West Yellowstone 6680 .2 .0 * 3.3 1.4 236 Whiskey Creek 6790 .7 .3 233* 4.3 2.0 215 ----- ----- Basin Index (%) 102* 172 YELLOWSTONE HEADWATERS IN WYOMING Beartooth Lake 9360 2.5 2.6 96 3.8 2.5 152 Canyon 7870 .4 .6 67* 3.0 1.8 167 Evening Star 9040 2.3 2.4 96* 5.6 3.4 165 Fisher Creek 9110 2.9 2.8 104* 5.5 3.8 145 Monument Peak 8740 2.6 2.1 124* 5.2 2.8 186 Northeast Entrance 7420 .4 .0 * 3.6 1.9 189 Parker Peak 9420 2.5 2.4 104* 4.3 2.7 159 Sylvan Lake 8440 .8 1.4 57* 5.2 3.2 162 Thumb Divide 7970 1.0 .3 333* 4.2 2.2 191 Two Ocean Plateau 9240 3.7 3.3 112* 5.6 3.0 187 White Mill 8730 2.2 1.8 122* 4.2 3.0 140 Wolverine 7650 .0 .0 * 2.9 2.0 145 ----- ----- Basin Index (%) 108* 164 WIND RIVER Burroughs Creek 8760 .0 -M * 4.2 -M * Castle Creek 8410 .2 .0 * 1.9 1.2 158 Cold Springs 9640 .3 .6 50* 2.6 1.8 144 Deer Park 9690 1.6 1.5 107* 2.6 2.3 113 Hobbs Park 10080 .8 1.8 44 2.4 2.0 120 Kirwin 9580 1.2 1.6 75 4.1 2.0 205 Little Warm 9370 1.3 1.2 108 3.7 1.8 206 South Pass 9040 1.7 .9 189* 2.5 1.8 139 St. Lawrence Alt 8610 .0 -M * 1.6 -M * Togwotee Pass 9590 1.8 2.5 72* 5.2 3.0 173 Townsend Creek 8720 .3 .8 38* 2.1 2.2 95 ----- ----- Basin Index (%) 84* 150 BIGHORN BASIN Bald Mtn. 9360 2.6 3.0 87 4.5 3.0 150 Bear Trap Meadow 8200 1.0 .5 200* 4.2 1.8 233 Bone Springs Div 9340 1.1 2.4 46 3.6 2.6 138 Grave Springs 8560 .9 .6 150* 4.1 1.8 228 Kirwin 9580 1.2 1.6 75 4.1 2.0 205 Marquette 8800 .4 1.0 40 2.4 2.0 120 Middle Powder 7760 .9 .7 129* 4.6 2.2 209 Owl Creek 8990 .0 .6 0 2.1 1.3 162 Powder River Pass 9480 2.1 1.6 131 5.2 2.4 217 Shell Creek 9570 1.9 2.8 68 4.3 2.5 172 Timber Creek 7910 .0 .4 0* 2.0 1.8 111 ----- ----- Basin Index (%) 80 176 SHOSHONE RIVER Blackwater 9840 3.5 2.8 125 4.6 2.7 170 Evening Star 9040 2.3 2.4 96* 5.6 3.4 165 Marquette 8800 .4 1.0 40 2.4 2.0 120 Sylvan Lake 8440 .8 1.4 57* 5.2 3.2 162 Sylvan Road 7140 .0 .2 0* 3.8 2.2 173 Younts Peak 8340 1.3 1.4 93* 5.7 2.2 259 ----- ----- Basin Index (%) 90* 174 POWDER RIVER Bear Trap Meadow 8200 1.0 .5 200* 4.2 1.8 233 Cloud Peak Reservoir 9830 1.5 1.9 79 4.0 2.6 154 Grave Springs 8560 .9 .6 150* 4.1 1.8 228 Hansen Sawmill 8360 .4 .2 200* 4.8 1.8 267 Middle Powder 7760 .9 .7 129* 4.6 2.2 209 Powder River Pass 9480 2.1 1.6 131 5.2 2.4 217 Soldier Park 8680 .2 .0 * 3.0 1.6 188 ----- ----- Basin Index (%) 127* 211 TONGUE RIVER Big Goose 8010 .5 .6 83* 3.2 2.2 145 Bone Springs Div 9340 1.1 2.4 46 3.6 2.6 138 Burgess Junction 7900 .3 1.1 27* 3.2 2.4 133 Dome Lake 8890 .8 1.6 50 3.8 2.6 146 Little Goose 8560 .6 .2 300* 3.3 2.2 150 Sucker Creek 8840 .5 1.6 31 3.5 2.6 135 Tie Creek 7050 .2 .0 * 2.8 2.4 117 ----- ----- Basin Index (%) 53* 138 BELLE FOURCHE Blind Park 6900 .2 .0 * 4.1 1.6 256 Cole Canyon 5930 .0 .0 * 4.4 1.6 275 North Rapid Creek 6150 .2 .0 * 3.0 1.4 214 ----- ----- Basin Index (%) * 250 CHEYENNE RIVER BASIN Blind Park 6900 .2 .0 * 4.1 1.6 256 North Rapid Creek 6150 .2 .0 * 3.0 1.4 214 ----- ----- Basin Index (%) * 237 UPPER N. PLATTE Arapaho Ridge 10960 .4 2.7 15 2.3 3.2 72 Blackhall Mtn 9830 .7 2.3 30* 3.6 3.7 97 Cinnabar Park 9670 .5 1.4 36* 2.3 2.8 82 Columbine 9170 .4 .4 100* 2.2 3.0 73 Divide Peak 8700 .8 .8 100* 3.2 3.2 100 Joe Wright 10140 .8 1.5 53* 2.9 3.9 74 Laprele Creek 8370 .2 .4 50* 3.4 1.6 212 Med Bow 10500 2.2 -M * 5.0 -M * Never Summer 10300 1.3 2.5 52 1.5 3.1 48 North French Creek 10150 1.5 2.4 62* 4.0 3.4 118 Old Battle 9850 1.4 2.0 70* 5.6 4.2 133 Rawah 9100 .0 .6 0* 1.8 3.1 58 Sage Creek Basin 7830 .1 .0 * 2.2 2.0 110 Sand Lake 10080 2.1 2.3 91* 4.4 3.0 147 South Brush Creek 8480 .1 .4 25* 2.1 2.2 95 Tower 10610 .7 2.3 30* 3.2 4.0 80 Webber Springs 9250 .6 1.0 60* 3.8 3.2 119 Whiskey Park 8950 .7 .5 140* 4.4 3.0 147 Willow Creek Pass 9520 .4 1.6 25 2.0 2.2 91 Zirkel 9320 .4 .6 67* 3.2 3.4 94 ----- ----- Basin Index (%) 51* 100 SWEETWATER Deer Park 9690 1.6 1.5 107* 2.6 2.3 113 Larsen Creek 8880 .6 .0 * 2.4 1.8 133 South Pass 9040 1.7 .9 189* 2.5 1.8 139 ----- ----- Basin Index (%) 162* 127 LOWER N. PLATTE Casper Mtn. 7940 .6 1.0 60* 2.8 2.4 117 Laprele Creek 8370 .2 .4 50* 3.4 1.6 212 Reno Hill 8410 .1 1.0 10* 2.9 2.1 138 Windy Peak 7900 .0 .3 0* 3.1 1.5 207 ----- ----- Basin Index (%) 33* 161 LARAMIE RIVER Brooklyn Lake 10250 1.0 1.0 100* 2.9 2.2 132 Cinnabar Park 9670 .5 1.4 36* 2.3 2.8 82 Crow Creek 8320 .2 .0 * 1.7 1.9 89 Deadman Hill 10240 1.1 2.3 48 1.6 2.8 57 Rawah 9100 .0 .6 0* 1.8 3.1 58 Roach 9710 .4 1.2 33* 1.7 2.6 65 Windy Peak 7900 .0 .3 0* 3.1 1.5 207 ----- ----- Basin Index (%) 47* 89 S. PLATTE Crow Creek 8320 .2 .0 * 1.7 1.9 89 ----- ----- Basin Index (%) * 89 LITTLE SNAKE RIVER Battle Mountain 7460 .0 .0 * 3.0 2.1 143 Divide Peak 8700 .8 .8 100* 3.2 3.2 100 Elk River 8710 .3 .2 150* 4.0 2.5 160 Elkhead Divide 8780 .0 -M * 4.0 -M * Little Snake River 8930 .1 .2 50* 4.2 4.4 95 Old Battle 9850 1.4 2.0 70* 5.6 4.2 133 Sage Creek Basin 7830 .1 .0 * 2.2 2.0 110 Sandstone RS 8150 .0 .0 * 2.8 2.2 127 Whiskey Park 8950 .7 .5 140* 4.4 3.0 147 ----- ----- Basin Index (%) 92* 125 UPPER GREEN RIVER Big Sandy Opening 9100 1.5 1.3 115* 1.7 1.8 94 Blind Bull Sum 8880 1.0 1.4 71* 2.7 2.0 135 East Rim Divide 8010 .1 .2 50* 2.5 1.4 179 Elkhart Park G.S. 9410 .4 1.0 40* 2.8 1.9 147 Gros Ventre Summit 8760 .8 1.5 53 -M 1.8 * Gunsight Pass 9830 1.7 .8 212* 4.1 2.2 186 Indian Creek 9400 1.1 1.6 69* 3.9 2.4 162 Kendall R.S. 7790 .4 .2 200* 3.2 1.6 200 Larsen Creek 8880 .6 .0 * 2.4 1.8 133 Loomis Park 8240 .4 .7 57* 2.8 1.9 147 New Fork Lake 8380 .0 .4 0* -M 1.3 * Pocket Creek 9370 -M -M * -M -M * Snider Basin 8080 .1 .3 33* 2.0 1.5 133 Spring Creek Divide 9020 1.1 1.3 85* 3.8 2.3 165 Triple Peak 8520 1.3 1.2 108* 3.7 2.1 176 ----- ----- Basin Index (%) 88* 155 LOWER GREEN RIVER Blacks Fork Jct 8880 .4 .0 * 2.5 1.6 156 Buck Pasture 9620 .2 -M * 3.5 -M * EF Blacks Fork GS 9360 .2 .0 * 2.8 1.6 175 Hams Fork 7870 .0 .0 * 2.0 1.6 125 Henrys Fork 10180 -M -M * 3.5 -M * Hewinta 9510 .0 .0 * 3.1 2.0 155 Hickerson Park 9130 2.0 .0 * 3.1 1.8 172 Hole-in-Rock 9170 .9 .1 900* 3.5 1.8 194 Indian Creek 9400 1.1 1.6 69* 3.9 2.4 162 Kelley R.S. 8240 .5 .6 83* 3.4 1.8 189 Spirit Lk 10240 .8 .9 89* 5.1 2.4 212 Steel Creek Park 10140 2.0 1.1 182* 3.6 2.2 164 ----- ----- Basin Index (%) 184* 172 UPPER BEAR RIVER Bear River RS 8510 .0 .0 * 2.4 1.4 171 Bug Lake 7980 .5 .2 250* 3.7 2.0 185 Burts Miller Ranch 7900 .0 .0 * 2.7 1.3 208 Chalk Creek #1 9160 1.0 1.3 77* 4.5 3.0 150 Giveout 6940 .0 .0 * 2.6 1.6 162 Hayden Fork 9160 .0 .0 * 3.3 2.6 127 Kelley R.S. 8240 .5 .6 83* 3.4 1.8 189 Lily Lake 9130 .0 .4 0* 2.8 2.2 127 Monte Cristo 8930 .6 .4 150* 4.6 2.6 177 Salt River Summit 7630 .0 .1 0* 2.7 1.8 150 Spring Creek Divide 9020 1.1 1.3 85* 3.8 2.3 165 Trial Lake 9970 1.4 .8 175* 2.9 2.4 121 ----- ----- Basin Index (%) 100* 158 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.