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 TUESDAY: OCTOBER 7 , 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 * 1.8 .5 360 Blind Bull Sum 8880 .0 .0 * .8 .4 200 Cottonwood Creek 7710 .0 .0 * 1.4 .4 350 East Rim Divide 8010 .0 .0 * 1.1 .1 1100 Grand Targhee 9260 .1 .6 17* 1.8 1.3 138 Granite Creek 6770 .0 .0 * .9 .4 225 Grassy Lake 7330 .0 .0 * .4 .8 50 Gros Ventre Summit 8760 .1 .0 * -M .4 * Gunsight Pass 9830 .9 .0 * 1.2 .6 200 Lewis Lake Divide 7880 .0 .0 * .7 .6 117 Loomis Park 8240 .0 .0 * .7 .4 175 Phillips Bench 8160 .0 .0 * 1.0 .4 250 Salt River Summit 7630 .0 .0 * 1.0 .3 333 Snake River Station 6900 .0 .0 * .5 .5 100 Somsen Ranch 6830 .0 .0 * 1.9 .4 475 Spring Creek Divide 9020 .0 .0 * 1.0 .4 250 Thumb Divide 7970 .0 .0 * 1.1 .5 220 Togwotee Pass 9590 .1 .0 * 1.8 .6 300 Triple Peak 8520 .0 .0 * 1.1 .5 220 Two Ocean Plateau 9240 .6 .4 150* 1.7 .8 212 Willow Creek 8060 .0 .0 * 1.8 .8 225 Younts Peak 8340 .7 .0 * 2.8 .4 700 ----- ----- Basin Index (%) 250* 239 MADISON HEADWATERS IN WYOMING Black Bear 8160 .1 .1 100* .3 .6 50 Canyon 7870 .0 .0 * .7 .4 175 Madison Plateau 7710 .0 .0 * .7 .5 140 West Yellowstone 6680 .0 .0 * .6 .3 200 Whiskey Creek 6790 .1 .0 * .5 .4 125 ----- ----- Basin Index (%) 200* 127 YELLOWSTONE HEADWATERS IN WYOMING Beartooth Lake 9360 .2 .4 50* .8 .4 200 Canyon 7870 .0 .0 * .7 .4 175 Evening Star 9040 .3 .0 * 1.4 .6 233 Fisher Creek 9110 .4 .0 * .7 .7 100 Monument Peak 8740 .6 .0 * 1.3 .6 217 Northeast Entrance 7420 .0 .0 * .9 .3 300 Parker Peak 9420 .2 .2 100* .9 .4 225 Sylvan Lake 8440 .0 .0 * 1.2 .8 150 Thumb Divide 7970 .0 .0 * 1.1 .5 220 Two Ocean Plateau 9240 .6 .4 150* 1.7 .8 212 White Mill 8730 .2 .0 * .8 .4 200 Wolverine 7650 .0 .0 * .9 .4 225 ----- ----- Basin Index (%) 250* 197 WIND RIVER Burroughs Creek 8760 .4 -M * -M -M * Castle Creek 8410 .3 .0 * 1.1 .4 275 Cold Springs 9640 .4 .0 * 1.2 .2 600 Deer Park 9690 .1 .0 * .2 .5 40 Hobbs Park 10080 .2 .2 100* .9 .4 225 Kirwin 9580 .7 .0 * 1.8 .6 300 Little Warm 9370 .4 .0 * 1.6 .4 400 South Pass 9040 .3 .0 * .4 .4 100 St. Lawrence Alt 8610 .0 -M * .9 -M * Togwotee Pass 9590 .1 .0 * 1.8 .6 300 Townsend Creek 8720 .1 .0 * .7 .4 175 ----- ----- Basin Index (%) 1300* 249 BIGHORN BASIN Bald Mtn. 9360 1.6 .5 320* 2.5 .5 500 Bear Trap Meadow 8200 .3 .0 * .8 .4 200 Bone Springs Div 9340 .6 .4 150* 1.6 .6 267 Grave Springs 8560 .1 .0 * .7 .4 175 Kirwin 9580 .7 .0 * 1.8 .6 300 Marquette 8800 .2 .2 100* 1.2 .4 300 Middle Powder 7760 .3 .1 300* .9 .4 225 Owl Creek 8990 1.2 .0 * 1.7 .3 567 Powder River Pass 9480 .1 .1 100* .9 .6 150 Shell Creek 9570 .9 .9 100* 1.6 .7 229 Timber Creek 7910 .6 .1 600* 1.6 .7 229 ----- ----- Basin Index (%) 287* 273 SHOSHONE RIVER Blackwater 9840 1.2 .3 400* 1.1 .6 183 Evening Star 9040 .3 .0 * 1.4 .6 233 Marquette 8800 .2 .2 100* 1.2 .4 300 Sylvan Lake 8440 .0 .0 * 1.2 .8 150 Sylvan Road 7140 .0 .0 * .9 .4 225 Younts Peak 8340 .7 .0 * 2.8 .4 700 ----- ----- Basin Index (%) 480* 269 POWDER RIVER Bear Trap Meadow 8200 .3 .0 * .8 .4 200 Cloud Peak Reservoir 9830 .5 .1 500* 1.0 .8 125 Grave Springs 8560 .1 .0 * .7 .4 175 Hansen Sawmill 8360 .1 .0 * 1.8 .5 360 Middle Powder 7760 .3 .1 300* .9 .4 225 Powder River Pass 9480 .1 .1 100* .9 .6 150 Soldier Park 8680 .5 .1 500* 1.4 .7 200 ----- ----- Basin Index (%) 475* 197 TONGUE RIVER Big Goose 8010 .4 .2 200* 1.6 .5 320 Bone Springs Div 9340 .6 .4 150* 1.6 .6 267 Burgess Junction 7900 .6 .2 300* 1.5 .6 250 Dome Lake 8890 .8 .0 * 1.7 .6 283 Little Goose 8560 .6 .2 300* 1.2 .6 200 Sucker Creek 8840 .6 .0 * 1.3 .4 325 Tie Creek 7050 .4 .0 * 1.5 .6 250 ----- ----- Basin Index (%) 400* 267 BELLE FOURCHE Blind Park 6900 .1 .0 * .9 .4 225 Cole Canyon 5930 .0 .0 * 1.5 .2 750 North Rapid Creek 6150 .1 .0 * .5 .3 167 ----- ----- Basin Index (%) * 322 CHEYENNE RIVER BASIN Blind Park 6900 .1 .0 * .9 .4 225 North Rapid Creek 6150 .1 .0 * .5 .3 167 ----- ----- Basin Index (%) * 200 UPPER N. PLATTE Arapaho Ridge 10960 .0 .2 0* .4 .5 80 Blackhall Mtn 9830 .0 .0 * .8 .7 114 Cinnabar Park 9670 .0 .0 * .5 .6 83 Columbine 9170 .3 .0 * .1 .5 20 Divide Peak 8700 .2 .0 * .8 .4 200 Joe Wright 10140 .2 .0 * .4 .4 100 Laprele Creek 8370 .1 .0 * 1.8 .2 900 Med Bow 10500 .3 -M * 1.5 -M * Never Summer 10300 .2 .0 * .2 .6 33 North French Creek 10150 .1 .0 * 1.2 .4 300 Old Battle 9850 .1 .0 * 1.4 .5 280 Rawah 9100 .0 .0 * .4 .6 67 Sage Creek Basin 7830 .0 .0 * .5 .4 125 Sand Lake 10080 .4 .0 * 1.2 .4 300 South Brush Creek 8480 .0 .0 * .5 .3 167 Tower 10610 .0 .0 * .3 .7 43 Webber Springs 9250 .2 .0 * 1.2 .4 300 Whiskey Park 8950 .0 .0 * .8 .4 200 Willow Creek Pass 9520 .1 .0 * .3 .4 75 Zirkel 9320 .1 .0 * .6 .6 100 ----- ----- Basin Index (%) 1000* 149 SWEETWATER Deer Park 9690 .1 .0 * .2 .5 40 Larsen Creek 8880 .4 .0 * .4 .6 67 South Pass 9040 .3 .0 * .4 .4 100 ----- ----- Basin Index (%) * 67 LOWER N. PLATTE Casper Mtn. 7940 .3 .0 * 1.1 .2 550 Laprele Creek 8370 .1 .0 * 1.8 .2 900 Reno Hill 8410 .0 .0 * 1.2 .3 400 Windy Peak 7900 .0 .0 * 1.3 .2 650 ----- ----- Basin Index (%) * 600 LARAMIE RIVER Brooklyn Lake 10250 .1 .0 * .6 .2 300 Cinnabar Park 9670 .0 .0 * .5 .6 83 Crow Creek 8320 .1 .0 * 1.1 .3 367 Deadman Hill 10240 .2 .0 * .4 .4 100 Rawah 9100 .0 .0 * .4 .6 67 Roach 9710 .1 .0 * .3 .4 75 Windy Peak 7900 .0 .0 * 1.3 .2 650 ----- ----- Basin Index (%) * 170 S. PLATTE Crow Creek 8320 .1 .0 * 1.1 .3 367 ----- ----- Basin Index (%) * 367 LITTLE SNAKE RIVER Battle Mountain 7460 .0 .0 * .8 .4 200 Divide Peak 8700 .2 .0 * .8 .4 200 Elk River 8710 .3 .0 * .8 .5 160 Elkhead Divide 8780 .0 -M * .8 -M * Little Snake River 8930 .0 .0 * .6 .7 86 Old Battle 9850 .1 .0 * 1.4 .5 280 Sage Creek Basin 7830 .0 .0 * .5 .4 125 Sandstone RS 8150 .0 .0 * .6 .4 150 Whiskey Park 8950 .0 .0 * .8 .4 200 ----- ----- Basin Index (%) * 170 UPPER GREEN RIVER Big Sandy Opening 9100 .8 .0 * .5 .5 100 Blind Bull Sum 8880 .0 .0 * .8 .4 200 East Rim Divide 8010 .0 .0 * 1.1 .1 1100 Elkhart Park G.S. 9410 .4 .0 * 1.2 .4 300 Gros Ventre Summit 8760 .1 .0 * -M .4 * Gunsight Pass 9830 .9 .0 * 1.2 .6 200 Indian Creek 9400 1.0 .0 * 1.5 .2 750 Kendall R.S. 7790 .0 .0 * .9 .2 450 Larsen Creek 8880 .4 .0 * .4 .6 67 Loomis Park 8240 .0 .0 * .7 .4 175 New Fork Lake 8380 .1 .0 * -M .2 * Pocket Creek 9370 -M -M * -M -M * Snider Basin 8080 .0 .0 * .2 .2 100 Spring Creek Divide 9020 .0 .0 * 1.0 .4 250 Triple Peak 8520 .0 .0 * 1.1 .5 220 ----- ----- Basin Index (%) * 236 LOWER GREEN RIVER Blacks Fork Jct 8880 .1 -M * .4 -M * Buck Pasture 9620 .0 -M * .5 -M * EF Blacks Fork GS 9360 .0 -M * .2 -M * Hams Fork 7870 .0 .0 * .5 .1 500 Henrys Fork 10180 -M -M * .4 -M * Hewinta 9510 .0 .0 * .2 .4 50 Hickerson Park 9130 .0 .0 * .6 .2 300 Hole-in-Rock 9170 .0 .0 * .3 .2 150 Indian Creek 9400 1.0 .0 * 1.5 .2 750 Kelley R.S. 8240 .0 .0 * 1.2 .2 600 Spirit Lk 10240 .2 .0 * 1.2 .6 200 Steel Creek Park 10140 .0 .0 * .5 .4 125 ----- ----- Basin Index (%) * 261 UPPER BEAR RIVER Bear River RS 8510 .0 -M * .4 -M * Bug Lake 7980 .0 .0 * 1.1 .2 550 Burts Miller Ranch 7900 .0 .0 * .2 .2 100 Chalk Creek #1 9160 .0 .0 * .8 .6 133 Giveout 6940 .0 .0 * .8 .4 200 Hayden Fork 9160 .0 .0 * .7 .4 175 Kelley R.S. 8240 .0 .0 * 1.2 .2 600 Lily Lake 9130 .0 .0 * .5 .3 167 Monte Cristo 8930 .1 .0 * 1.6 .5 320 Salt River Summit 7630 .0 .0 * 1.0 .3 333 Spring Creek Divide 9020 .0 .0 * 1.0 .4 250 Trial Lake 9970 .8 .0 * .8 .3 267 ----- ----- Basin Index (%) * 255 ----------------------------------------------------------------------------- -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.