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 FRIDAY: OCTOBER 17 , 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 * 3.3 1.2 275 Blind Bull Sum 8880 .0 .2 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 1.8 2.0 90* 4.7 2.6 181 Granite Creek 6770 .0 .0 * 2.1 .8 262 Grassy Lake 7330 .0 .0 * 2.8 1.6 175 Gros Ventre Summit 8760 .0 .6 0* -M 1.0 * Gunsight Pass 9830 .9 .2 450* 2.9 1.1 264 Lewis Lake Divide 7880 .1 .0 * 2.8 1.5 187 Loomis Park 8240 .0 .0 * 1.8 .9 200 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 * 2.2 1.0 220 Somsen Ranch 6830 .1 .0 * 3.2 .9 356 Spring Creek Divide 9020 .2 .2 100* 2.4 1.0 240 Thumb Divide 7970 .1 .0 * 2.7 1.2 225 Togwotee Pass 9590 .7 1.4 50* 3.6 1.4 257 Triple Peak 8520 .2 .0 * 2.1 1.2 175 Two Ocean Plateau 9240 1.8 1.5 120* 3.8 1.6 238 Willow Creek 8060 .1 .0 * 4.0 1.9 211 Younts Peak 8340 .2 .2 100* 4.3 1.0 430 ----- ----- Basin Index (%) 98* 229 MADISON HEADWATERS IN WYOMING Black Bear 8160 .8 1.2 67* 3.4 2.1 162 Canyon 7870 .1 .1 100* 2.1 1.2 175 Madison Plateau 7710 .1 .3 33* 3.0 1.7 176 West Yellowstone 6680 .1 .0 * 2.2 .8 275 Whiskey Creek 6790 .2 .0 * 3.0 1.2 250 ----- ----- Basin Index (%) 81* 196 YELLOWSTONE HEADWATERS IN WYOMING Beartooth Lake 9360 1.0 1.2 83* 2.3 1.2 192 Canyon 7870 .1 .1 100* 2.1 1.2 175 Evening Star 9040 .5 1.0 50* 3.4 2.0 170 Fisher Creek 9110 1.4 1.5 93* 3.7 1.8 206 Monument Peak 8740 1.0 1.0 100* 3.4 1.6 212 Northeast Entrance 7420 .0 .0 * 2.6 .8 325 Parker Peak 9420 .9 1.2 75* 3.0 1.6 188 Sylvan Lake 8440 .3 .6 50* 3.7 1.8 206 Thumb Divide 7970 .1 .0 * 2.7 1.2 225 Two Ocean Plateau 9240 1.8 1.5 120* 3.8 1.6 238 White Mill 8730 1.0 1.1 91* 2.9 1.4 207 Wolverine 7650 .0 .0 * 1.9 1.1 173 ----- ----- Basin Index (%) 88* 205 WIND RIVER Burroughs Creek 8760 .0 -M * 3.6 -M * Castle Creek 8410 .3 .0 * 1.7 .8 212 Cold Springs 9640 .0 .0 * 1.8 .8 225 Deer Park 9690 .7 .4 175* 1.3 1.3 100 Hobbs Park 10080 .0 .8 0* 1.4 1.0 140 Kirwin 9580 .5 .8 62* 3.2 1.2 267 Little Warm 9370 .5 .2 250* 2.6 1.0 260 South Pass 9040 .8 .0 * 1.2 1.0 120 St. Lawrence Alt 8610 .0 -M * 1.2 -M * Togwotee Pass 9590 .7 1.4 50* 3.6 1.4 257 Townsend Creek 8720 .3 .0 * 1.6 1.0 160 ----- ----- Basin Index (%) 106* 194 BIGHORN BASIN Bald Mtn. 9360 1.7 1.8 94* 3.7 1.6 231 Bear Trap Meadow 8200 .9 .1 900* 2.9 1.1 264 Bone Springs Div 9340 .3 1.3 23* 2.9 1.6 181 Grave Springs 8560 .7 .1 700* 3.2 1.0 320 Kirwin 9580 .5 .8 62* 3.2 1.2 267 Marquette 8800 .2 .3 67* 1.8 1.2 150 Middle Powder 7760 1.0 .4 250* 3.0 1.0 300 Owl Creek 8990 .0 .3 0* 1.9 1.0 190 Powder River Pass 9480 .8 .6 133* 3.2 1.4 229 Shell Creek 9570 .6 1.6 38* 3.0 1.3 231 Timber Creek 7910 .0 .0 * 1.9 1.1 173 ----- ----- Basin Index (%) 92* 227 SHOSHONE RIVER Blackwater 9840 1.5 1.4 107* 2.7 1.8 150 Evening Star 9040 .5 1.0 50* 3.4 2.0 170 Marquette 8800 .2 .3 67* 1.8 1.2 150 Sylvan Lake 8440 .3 .6 50* 3.7 1.8 206 Sylvan Road 7140 .1 .0 * 2.7 1.3 208 Younts Peak 8340 .2 .2 100* 4.3 1.0 430 ----- ----- Basin Index (%) 80* 204 POWDER RIVER Bear Trap Meadow 8200 .9 .1 900* 2.9 1.1 264 Cloud Peak Reservoir 9830 .1 .8 12* 2.4 1.5 160 Grave Springs 8560 .7 .1 700* 3.2 1.0 320 Hansen Sawmill 8360 .3 .0 * 3.3 1.2 275 Middle Powder 7760 1.0 .4 250* 3.0 1.0 300 Powder River Pass 9480 .8 .6 133* 3.2 1.4 229 Soldier Park 8680 .2 .0 * 2.2 1.2 183 ----- ----- Basin Index (%) 200* 240 TONGUE RIVER Big Goose 8010 .3 .4 75* 2.1 1.2 175 Bone Springs Div 9340 .3 1.3 23* 2.9 1.6 181 Burgess Junction 7900 .1 .4 25* 2.5 1.3 192 Dome Lake 8890 .2 .6 33* 2.6 1.5 173 Little Goose 8560 .2 .0 * 2.3 1.4 164 Sucker Creek 8840 .2 .6 33* 2.5 1.4 179 Tie Creek 7050 .2 .0 * 2.2 1.1 200 ----- ----- Basin Index (%) 45* 180 BELLE FOURCHE Blind Park 6900 .2 .0 * 2.7 1.1 245 Cole Canyon 5930 .0 .0 * 2.9 .9 322 North Rapid Creek 6150 .2 .0 * 2.0 .8 250 ----- ----- Basin Index (%) * 271 CHEYENNE RIVER BASIN Blind Park 6900 .2 .0 * 2.7 1.1 245 North Rapid Creek 6150 .2 .0 * 2.0 .8 250 ----- ----- Basin Index (%) * 247 UPPER N. PLATTE Arapaho Ridge 10960 .0 1.0 0* 1.6 1.6 100 Blackhall Mtn 9830 .2 .8 25* 2.5 1.5 167 Cinnabar Park 9670 .1 .0 * 1.3 1.0 130 Columbine 9170 .3 .0 * 1.0 1.4 71 Divide Peak 8700 .3 .1 300* 2.1 1.6 131 Joe Wright 10140 .1 .2 50* 1.4 1.8 78 Laprele Creek 8370 .1 .0 * 2.6 .8 325 Med Bow 10500 .5 -M * 3.1 -M * Never Summer 10300 .2 .8 25* .9 1.6 56 North French Creek 10150 .4 .3 133* 2.7 1.6 169 Old Battle 9850 .4 .8 50* 4.2 1.8 233 Rawah 9100 .0 .0 * 1.3 1.5 87 Sage Creek Basin 7830 .1 .0 * 1.6 1.0 160 Sand Lake 10080 .4 1.0 40* 2.6 1.5 173 South Brush Creek 8480 .0 .0 * 1.4 .8 175 Tower 10610 .0 .4 0* 1.9 2.0 95 Webber Springs 9250 .2 .0 * 3.0 1.4 214 Whiskey Park 8950 .1 .0 * 3.0 1.6 188 Willow Creek Pass 9520 .1 .0 * 1.1 1.0 110 Zirkel 9320 .1 .0 * 2.0 1.8 111 ----- ----- Basin Index (%) 57* 140 SWEETWATER Deer Park 9690 .7 .4 175* 1.3 1.3 100 Larsen Creek 8880 .6 .0 * 1.4 .8 175 South Pass 9040 .8 .0 * 1.2 1.0 120 ----- ----- Basin Index (%) 525* 126 LOWER N. PLATTE Casper Mtn. 7940 .2 .0 * 1.7 1.0 170 Laprele Creek 8370 .1 .0 * 2.6 .8 325 Reno Hill 8410 .0 .5 0* 1.7 1.2 142 Windy Peak 7900 .0 .0 * 2.4 .7 343 ----- ----- Basin Index (%) 60* 227 LARAMIE RIVER Brooklyn Lake 10250 .2 .0 * 1.4 .9 156 Cinnabar Park 9670 .1 .0 * 1.3 1.0 130 Crow Creek 8320 .0 .0 * 1.3 .8 162 Deadman Hill 10240 .3 .8 38* .8 1.2 67 Rawah 9100 .0 .0 * 1.3 1.5 87 Roach 9710 .2 .4 50* 1.2 1.1 109 Windy Peak 7900 .0 .0 * 2.4 .7 343 ----- ----- Basin Index (%) 67* 135 S. PLATTE Crow Creek 8320 .0 .0 * 1.3 .8 162 ----- ----- Basin Index (%) * 162 LITTLE SNAKE RIVER Battle Mountain 7460 .2 .0 * 2.5 .9 278 Divide Peak 8700 .3 .1 300* 2.1 1.6 131 Elk River 8710 .2 .0 * 3.3 1.2 275 Elkhead Divide 8780 .0 -M * 3.4 -M * Little Snake River 8930 .1 .0 * 3.2 1.8 178 Old Battle 9850 .4 .8 50* 4.2 1.8 233 Sage Creek Basin 7830 .1 .0 * 1.6 1.0 160 Sandstone RS 8150 .0 .0 * 2.3 1.0 230 Whiskey Park 8950 .1 .0 * 3.0 1.6 188 ----- ----- Basin Index (%) 156* 204 UPPER GREEN RIVER Big Sandy Opening 9100 .7 .4 175* 1.1 1.0 110 Blind Bull Sum 8880 .0 .2 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 1.2 175 Gros Ventre Summit 8760 .0 .6 0* -M 1.0 * Gunsight Pass 9830 .9 .2 450* 2.9 1.1 264 Indian Creek 9400 .5 .4 125* 2.8 1.0 280 Kendall R.S. 7790 .1 .0 * 2.4 .8 300 Larsen Creek 8880 .6 .0 * 1.4 .8 175 Loomis Park 8240 .0 .0 * 1.8 .9 200 New Fork Lake 8380 .0 .0 * -M .7 * Pocket Creek 9370 -M -M * -M -M * Snider Basin 8080 .0 .0 * 1.0 .6 167 Spring Creek Divide 9020 .2 .2 100* 2.4 1.0 240 Triple Peak 8520 .2 .0 * 2.1 1.2 175 ----- ----- Basin Index (%) 152* 207 LOWER GREEN RIVER Blacks Fork Jct 8880 1.0 -M * 1.7 -M * Buck Pasture 9620 .8 -M * 2.6 -M * EF Blacks Fork GS 9360 1.1 -M * 2.0 -M * Hams Fork 7870 .0 .0 * 1.3 .6 217 Henrys Fork 10180 -M -M * 2.9 -M * Hewinta 9510 1.2 .0 * 2.2 1.0 220 Hickerson Park 9130 .8 .0 * 2.3 .7 329 Hole-in-Rock 9170 .9 .0 * 2.0 .8 250 Indian Creek 9400 .5 .4 125* 2.8 1.0 280 Kelley R.S. 8240 .1 .0 * 2.7 .7 386 Spirit Lk 10240 .6 .0 * 4.2 1.0 420 Steel Creek Park 10140 1.3 .1 1300* 2.6 1.0 260 ----- ----- Basin Index (%) 1080* 296 UPPER BEAR RIVER Bear River RS 8510 .4 -M * 1.6 -M * Bug Lake 7980 .0 .0 * 2.7 .6 450 Burts Miller Ranch 7900 .6 .0 * 1.7 .4 425 Chalk Creek #1 9160 1.3 .0 * 3.4 1.2 283 Giveout 6940 .0 .0 * 1.9 .8 238 Hayden Fork 9160 .2 .0 * 2.3 1.0 230 Kelley R.S. 8240 .1 .0 * 2.7 .7 386 Lily Lake 9130 .6 .0 * 2.0 1.1 182 Monte Cristo 8930 .8 .0 * 3.9 1.0 390 Salt River Summit 7630 .0 .0 * 1.9 .8 238 Spring Creek Divide 9020 .2 .2 100* 2.4 1.0 240 Trial Lake 9970 1.4 .0 * 2.2 1.1 200 ----- ----- Basin Index (%) 2600* 279 ---------------------------------------------------------------------------- -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.