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 MONDAY: OCTOBER 6 , 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 .4 450 Blind Bull Sum 8880 .0 .0 * .8 .4 200 Cottonwood Creek 7710 .0 .0 * 1.4 .3 467 East Rim Divide 8010 .0 .0 * 1.1 .1 1100 Grand Targhee 9260 .1 .6 17* 1.8 1.2 150 Granite Creek 6770 .0 .0 * .9 .4 225 Grassy Lake 7330 .0 .0 * .4 .6 67 Gros Ventre Summit 8760 .3 .0 * -M .4 * Gunsight Pass 9830 .9 .0 * 1.2 .4 300 Lewis Lake Divide 7880 .0 .0 * .7 .6 117 Loomis Park 8240 .0 .0 * .7 .2 350 Phillips Bench 8160 .0 .0 * 1.0 .3 333 Salt River Summit 7630 .0 .0 * 1.0 .2 500 Snake River Station 6900 .0 .0 * .6 .4 150 Somsen Ranch 6830 .0 .0 * 1.9 .4 475 Spring Creek Divide 9020 .0 .0 * 1.0 .3 333 Thumb Divide 7970 .1 .0 * 1.1 .4 275 Togwotee Pass 9590 .2 .0 * 1.8 .4 450 Triple Peak 8520 .0 .0 * 1.1 .5 220 Two Ocean Plateau 9240 .7 .2 350* 1.7 .6 283 Willow Creek 8060 .0 .0 * 1.8 .6 300 Younts Peak 8340 1.0 .0 * 2.9 .2 1450 ----- ----- Basin Index (%) 412* 300 MADISON HEADWATERS IN WYOMING Black Bear 8160 .1 .0 * .3 .4 75 Canyon 7870 .1 .0 * .7 .2 350 Madison Plateau 7710 .0 .0 * .7 .5 140 West Yellowstone 6680 .0 .0 * .6 .3 200 Whiskey Creek 6790 .1 .0 * .5 .3 167 ----- ----- Basin Index (%) * 165 YELLOWSTONE HEADWATERS IN WYOMING Beartooth Lake 9360 .3 .0 * .8 .4 200 Canyon 7870 .1 .0 * .7 .2 350 Evening Star 9040 .4 .0 * 1.3 .6 217 Fisher Creek 9110 .5 .0 * .8 .7 114 Monument Peak 8740 .6 .0 * 1.2 .6 200 Northeast Entrance 7420 .0 .0 * .9 .3 300 Parker Peak 9420 .3 .2 150* .9 .4 225 Sylvan Lake 8440 .1 .0 * 1.2 .8 150 Thumb Divide 7970 .1 .0 * 1.1 .4 275 Two Ocean Plateau 9240 .7 .2 350* 1.7 .6 283 White Mill 8730 .2 .0 * .8 .4 200 Wolverine 7650 .0 .0 * .8 .3 267 ----- ----- Basin Index (%) 825* 214 WIND RIVER Burroughs Creek 8760 .6 -M * -M -M * Castle Creek 8410 .5 .0 * 1.1 .2 550 Cold Springs 9640 .5 .0 * 1.2 .2 600 Deer Park 9690 .2 .0 * .2 .5 40 Hobbs Park 10080 .4 .0 * .8 .2 400 Kirwin 9580 .8 .0 * 1.8 .4 450 Little Warm 9370 .4 .0 * 1.6 .3 533 South Pass 9040 .4 .0 * .4 .3 133 St. Lawrence Alt 8610 .1 -M * .9 -M * Togwotee Pass 9590 .2 .0 * 1.8 .4 450 Townsend Creek 8720 .2 .0 * .7 .3 233 ----- ----- Basin Index (%) * 343 BIGHORN BASIN Bald Mtn. 9360 1.7 .3 567* 2.5 .5 500 Bear Trap Meadow 8200 .4 .0 * .8 .4 200 Bone Springs Div 9340 .8 .2 400* 1.6 .4 400 Grave Springs 8560 .2 .0 * .7 .2 350 Kirwin 9580 .8 .0 * 1.8 .4 450 Marquette 8800 .4 .0 * 1.2 .3 400 Middle Powder 7760 .4 .0 * .8 .4 200 Owl Creek 8990 1.2 .0 * 1.7 .2 850 Powder River Pass 9480 .2 .1 200* .8 .4 200 Shell Creek 9570 .9 .6 150* 1.5 .4 375 Timber Creek 7910 .6 .0 * 1.6 .4 400 ----- ----- Basin Index (%) 633* 375 SHOSHONE RIVER Blackwater 9840 1.2 .0 * 1.1 .5 220 Evening Star 9040 .4 .0 * 1.3 .6 217 Marquette 8800 .4 .0 * 1.2 .3 400 Sylvan Lake 8440 .1 .0 * 1.2 .8 150 Sylvan Road 7140 .0 .0 * 1.0 .4 250 Younts Peak 8340 1.0 .0 * 2.9 .2 1450 ----- ----- Basin Index (%) * 311 POWDER RIVER Bear Trap Meadow 8200 .4 .0 * .8 .4 200 Cloud Peak Reservoir 9830 .5 .0 * 1.1 .6 183 Grave Springs 8560 .2 .0 * .7 .2 350 Hansen Sawmill 8360 .3 .0 * 1.7 .4 425 Middle Powder 7760 .4 .0 * .8 .4 200 Powder River Pass 9480 .2 .1 200* .8 .4 200 Soldier Park 8680 .5 .0 * 1.4 .6 233 ----- ----- Basin Index (%) 2500* 243 TONGUE RIVER Big Goose 8010 .6 .0 * 1.6 .5 320 Bone Springs Div 9340 .8 .2 400* 1.6 .4 400 Burgess Junction 7900 .7 .1 700* 1.5 .4 375 Dome Lake 8890 1.0 .0 * 1.7 .4 425 Little Goose 8560 .7 .0 * 1.2 .4 300 Sucker Creek 8840 .8 .0 * 1.4 .3 467 Tie Creek 7050 .5 .0 * 1.5 .4 375 ----- ----- Basin Index (%) 1700* 375 BELLE FOURCHE Blind Park 6900 .1 .0 * .8 .3 267 Cole Canyon 5930 .0 .0 * 1.4 .2 700 North Rapid Creek 6150 .1 .0 * .4 .2 200 ----- ----- Basin Index (%) * 371 CHEYENNE RIVER BASIN Blind Park 6900 .1 .0 * .8 .3 267 North Rapid Creek 6150 .1 .0 * .4 .2 200 ----- ----- Basin Index (%) * 240 UPPER N. PLATTE Arapaho Ridge 10960 .1 .2 50* .4 .5 80 Blackhall Mtn 9830 .1 .0 * .8 .4 200 Cinnabar Park 9670 .1 .0 * .4 .3 133 Columbine 9170 .3 .0 * .2 .4 50 Divide Peak 8700 .2 .0 * .8 .2 400 Joe Wright 10140 .2 .0 * .3 .3 100 Laprele Creek 8370 .1 .0 * 1.8 .2 900 Med Bow 10500 .5 -M * 1.5 -M * Never Summer 10300 .2 .0 * .2 .4 50 North French Creek 10150 .4 .0 * 1.2 .2 600 Old Battle 9850 .1 .0 * 1.4 .3 467 Rawah 9100 .0 .0 * .4 .4 100 Sage Creek Basin 7830 .1 .0 * .5 .2 250 Sand Lake 10080 .4 .0 * 1.2 .2 600 South Brush Creek 8480 .0 .0 * .4 .2 200 Tower 10610 .0 .0 * .3 .5 60 Webber Springs 9250 .2 .0 * 1.2 .3 400 Whiskey Park 8950 .0 .0 * .8 .3 267 Willow Creek Pass 9520 .1 .0 * .2 .2 100 Zirkel 9320 .1 .0 * .7 .6 117 ----- ----- Basin Index (%) 1350* 216 SWEETWATER Deer Park 9690 .2 .0 * .2 .5 40 Larsen Creek 8880 .5 .0 * .3 .5 60 South Pass 9040 .4 .0 * .4 .3 133 ----- ----- Basin Index (%) * 69 LOWER N. PLATTE Casper Mtn. 7940 .4 .0 * .9 .1 900 Laprele Creek 8370 .1 .0 * 1.8 .2 900 Reno Hill 8410 .0 .0 * 1.2 .2 600 Windy Peak 7900 .0 .0 * 1.2 .2 600 ----- ----- Basin Index (%) * 729 LARAMIE RIVER Brooklyn Lake 10250 .2 .0 * .6 .1 600 Cinnabar Park 9670 .1 .0 * .4 .3 133 Crow Creek 8320 .4 .0 * .9 .2 450 Deadman Hill 10240 .4 .0 * .4 .3 133 Rawah 9100 .0 .0 * .4 .4 100 Roach 9710 .2 .0 * .3 .2 150 Windy Peak 7900 .0 .0 * 1.2 .2 600 ----- ----- Basin Index (%) * 247 S. PLATTE Crow Creek 8320 .4 .0 * .9 .2 450 ----- ----- Basin Index (%) * 450 LITTLE SNAKE RIVER Battle Mountain 7460 .1 .0 * .8 .2 400 Divide Peak 8700 .2 .0 * .8 .2 400 Elk River 8710 .2 .0 * .8 .2 400 Elkhead Divide 8780 .0 -M * .8 -M * Little Snake River 8930 .0 .0 * .6 .6 100 Old Battle 9850 .1 .0 * 1.4 .3 467 Sage Creek Basin 7830 .1 .0 * .5 .2 250 Sandstone RS 8150 .0 .0 * .6 .2 300 Whiskey Park 8950 .0 .0 * .8 .3 267 ----- ----- Basin Index (%) * 286 UPPER GREEN RIVER Big Sandy Opening 9100 .8 .0 * .4 .3 133 Blind Bull Sum 8880 .0 .0 * .8 .4 200 East Rim Divide 8010 .0 .0 * 1.1 .1 1100 Elkhart Park G.S. 9410 .5 .0 * 1.2 .4 300 Gros Ventre Summit 8760 .3 .0 * -M .4 * Gunsight Pass 9830 .9 .0 * 1.2 .4 300 Indian Creek 9400 1.1 .0 * 1.5 .2 750 Kendall R.S. 7790 .1 .0 * .9 .2 450 Larsen Creek 8880 .5 .0 * .3 .5 60 Loomis Park 8240 .0 .0 * .7 .2 350 New Fork Lake 8380 .3 .0 * -M .1 * Pocket Creek 9370 -M -M * -M -M * Snider Basin 8080 .1 .0 * .3 .2 150 Spring Creek Divide 9020 .0 .0 * 1.0 .3 333 Triple Peak 8520 .0 .0 * 1.1 .5 220 ----- ----- Basin Index (%) * 284 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 * .3 -M * Hams Fork 7870 .0 .0 * .5 .1 500 Henrys Fork 10180 -M -M * .3 -M * Hewinta 9510 .0 .0 * .2 .3 67 Hickerson Park 9130 .0 .0 * .6 .2 300 Hole-in-Rock 9170 .0 .0 * .3 .2 150 Indian Creek 9400 1.1 .0 * 1.5 .2 750 Kelley R.S. 8240 .0 .0 * 1.2 .2 600 Spirit Lk 10240 .4 .0 * 1.1 .5 220 Steel Creek Park 10140 .0 .0 * .5 .4 125 ----- ----- Basin Index (%) * 281 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 .2 .0 * .8 .4 200 Giveout 6940 .0 .0 * .8 .2 400 Hayden Fork 9160 .0 .0 * .6 .3 200 Kelley R.S. 8240 .0 .0 * 1.2 .2 600 Lily Lake 9130 .0 .0 * .4 .2 200 Monte Cristo 8930 .3 .0 * 1.6 .4 400 Salt River Summit 7630 .0 .0 * 1.0 .2 500 Spring Creek Divide 9020 .0 .0 * 1.0 .3 333 Trial Lake 9970 .9 .0 * .8 .3 267 ----- ----- Basin Index (%) * 328 ----------------------------------------------------------------------------- -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.