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: MAY 26 , 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 * 25.3 25.2 100 Blind Bull Sum 8880 27.1 19.0 143 21.8 22.4 97 Cottonwood Creek 7710 3.4 3.4 100 34.0 31.0 110 East Rim Divide 8010 .0 .0 * 14.9 14.6 102 Grand Targhee 9260 37.8 43.0 88 37.1 39.9 93 Granite Creek 6770 .0 .0 * 21.9 23.0 95 Grassy Lake 7330 8.1 11.3 72 40.4 42.6 95 Gros Ventre Summit 8760 .0 .8 0* 16.3 16.0 102 Gunsight Pass 9830 6.2 8.6 72 17.5 17.8 98 Lewis Lake Divide 7880 10.5 18.0 58 40.6 40.4 100 Loomis Park 8240 .1 .0 * 20.5 21.1 97 Phillips Bench 8160 9.9 13.6 73 32.0 31.6 101 Salt River Summit 7630 .0 .0 * 16.4 19.6 84 Snake River Station 6900 .0 .0 * 26.4 28.2 94 Somsen Ranch 6830 .0 .0 * 19.6 20.5 96 Spring Creek Divide 9020 19.6 18.6 105 29.1 28.7 101 Thumb Divide 7970 -M .0 * -M 23.0 * Togwotee Pass 9590 16.3 22.1 74 30.1 30.4 99 Triple Peak 8520 7.3 6.2 118 31.6 31.5 100 Two Ocean Plateau 9240 23.1 28.6 81 31.3 32.9 95 Willow Creek 8060 13.4 11.5 117 44.4 41.2 108 Younts Peak 8340 .0 2.8 0 17.7 19.8 89 ----- ----- Basin Index (%) 88 98 MADISON HEADWATERS IN WYOMING Black Bear 8160 21.0 32.8 64 40.7 45.3 90 Canyon 7870 .3 .4 75* 16.7 19.9 84 Madison Plateau 7710 5.9 12.4 48 30.0 31.2 96 West Yellowstone 6680 .0 .0 * 16.4 17.8 92 Whiskey Creek 6790 .1 1.6 6 24.3 25.8 94 ----- ----- Basin Index (%) 58 92 YELLOWSTONE HEADWATERS IN WYOMING Beartooth Lake 9360 21.8 21.0 104 25.8 26.5 97 Canyon 7870 .3 .4 75* 16.7 19.9 84 Evening Star 9040 17.7 22.2 80 34.5 35.2 98 Fisher Creek 9110 28.0 34.8 80 36.7 41.9 88 Monument Peak 8740 9.1 16.9 54 26.2 28.0 94 Northeast Entrance 7420 .0 .0 * 16.9 16.8 101 Parker Peak 9420 17.8 18.4 97 29.9 24.8 121 Sylvan Lake 8440 2.9 11.3 26 28.4 29.4 97 Thumb Divide 7970 -M .0 * -M 23.0 * Two Ocean Plateau 9240 23.1 28.6 81 31.3 32.9 95 White Mill 8730 19.3 20.9 92 27.0 27.8 97 Wolverine 7650 .0 .0 * 19.7 16.0 123 ----- ----- Basin Index (%) 80 98 WIND RIVER Burroughs Creek 8760 .0 -M * 19.5 -M * Castle Creek 8410 .0 .0 * 10.9 12.4 88 Cold Springs 9640 .0 .0 * 12.2 14.8 82 Deer Park 9690 5.5 8.0 69 24.0 24.7 97 Hobbs Park 10080 9.2 11.2 82 19.6 20.0 98 Kirwin 9580 .1 5.8 2 18.5 17.4 106 Little Warm 9370 .0 .3 0* 16.2 15.8 103 South Pass 9040 .4 5.4 7 21.1 21.0 100 St. Lawrence Alt 8610 .0 -M * 13.2 -M * Togwotee Pass 9590 16.3 22.1 74 30.1 30.4 99 Townsend Creek 8720 .0 .0 * 18.6 18.0 103 ----- ----- Basin Index (%) 60 98 BIGHORN BASIN Bald Mtn. 9360 21.0 16.9 124 23.4 21.2 110 Bear Trap Meadow 8200 .0 .0 * 12.9 13.2 98 Bone Springs Div 9340 13.7 12.5 110 17.2 20.1 86 Grave Springs 8560 .0 .0 * 13.5 13.8 98 Kirwin 9580 .1 5.8 2 18.5 17.4 106 Marquette 8800 2.7 .8 338* 17.4 16.4 106 Middle Powder 7760 .0 .0 * 13.6 15.2 89 Owl Creek 8990 .0 .0 * 11.9 10.8 110 Powder River Pass 9480 .1 2.0 5 16.9 18.2 93 Shell Creek 9570 12.2 13.0 94 18.0 18.9 95 Timber Creek 7910 .1 .0 * 13.8 13.4 103 ----- ----- Basin Index (%) 98* 99 SHOSHONE RIVER Blackwater 9840 -M 23.3 * 29.2 29.3 100 Evening Star 9040 17.7 22.2 80 34.5 35.2 98 Marquette 8800 2.7 .8 338* 17.4 16.4 106 Sylvan Lake 8440 2.9 11.3 26 28.4 29.4 97 Sylvan Road 7140 .0 .0 * 18.1 20.2 90 Younts Peak 8340 .0 2.8 0 17.7 19.8 89 ----- ----- Basin Index (%) 63 97 POWDER RIVER Bear Trap Meadow 8200 .0 .0 * 12.9 13.2 98 Cloud Peak Reservoir 9830 9.4 11.4 82 20.3 21.4 95 Grave Springs 8560 .0 .0 * 13.5 13.8 98 Hansen Sawmill 8360 .0 .0 * 13.6 14.2 96 Middle Powder 7760 .0 .0 * 13.6 15.2 89 Powder River Pass 9480 .1 2.0 5 16.9 18.2 93 Soldier Park 8680 .0 1.0 0 12.1 15.0 81 ----- ----- Basin Index (%) 66* 93 TONGUE RIVER Big Goose 8010 .1 .8 12* 17.1 18.6 92 Bone Springs Div 9340 13.7 12.5 110 17.2 20.1 86 Burgess Junction 7900 6.4 3.4 188 19.1 17.8 107 Dome Lake 8890 2.8 2.0 140 -M 20.6 * Little Goose 8560 4.2 4.7 89 20.8 20.0 104 Sucker Creek 8840 9.1 4.2 217 24.0 21.4 112 Tie Creek 7050 .0 .0 * 19.0 18.2 104 ----- ----- Basin Index (%) 132 101 BELLE FOURCHE Blind Park 6900 .1 .0 * 14.5 15.6 93 Cole Canyon 5930 .0 .0 * 15.4 14.6 105 North Rapid Creek 6150 -M .0 * 13.3 13.6 98 ----- ----- Basin Index (%) * 99 CHEYENNE RIVER BASIN Blind Park 6900 .1 .0 * 14.5 15.6 93 North Rapid Creek 6150 -M .0 * 13.3 13.6 98 ----- ----- Basin Index (%) * 95 UPPER N. PLATTE Arapaho Ridge 10960 11.4 15.3 75 24.2 28.6 85 Blackhall Mtn 9830 12.7 28.7 44 35.4 40.6 87 Cinnabar Park 9670 3.0 7.6 39 26.3 29.3 90 Columbine 9170 .0 .0 * 30.4 31.5 97 Divide Peak 8700 .0 .2 0* 22.9 26.4 87 Joe Wright 10140 15.2 16.1 94 33.8 34.2 99 Laprele Creek 8370 .1 .0 * 13.7 17.5 78 Med Bow 10500 33.7 -M * 39.8 -M * Never Summer 10300 16.5 18.8 88 21.6 23.1 94 North French Creek 10150 23.5 25.6 92 35.6 36.6 97 Old Battle 9850 21.8 30.0 73 33.2 42.2 79 Rawah 9100 .0 .0 * 17.0 20.8 82 Sage Creek Basin 7830 .0 .0 * -M 16.9 * Sand Lake 10080 26.6 26.4 101 32.8 32.7 100 South Brush Creek 8480 .2 .0 * 14.9 19.6 76 Tower 10610 31.7 39.9 79 48.5 49.8 97 Webber Springs 9250 .6 6.7 9 26.5 32.2 82 Whiskey Park 8950 7.0 15.0 47 32.3 36.0 90 Willow Creek Pass 9520 1.9 6.7 28 16.4 18.1 91 Zirkel 9320 .1 1.0 10* 34.0 36.4 93 ----- ----- Basin Index (%) 72 90 SWEETWATER Deer Park 9690 5.5 8.0 69 24.0 24.7 97 Larsen Creek 8880 .0 .0 * 15.2 17.2 88 South Pass 9040 .4 5.4 7 21.1 21.0 100 ----- ----- Basin Index (%) 44 96 LOWER N. PLATTE Casper Mtn. 7940 .0 .2 0* 15.7 20.0 78 Laprele Creek 8370 .1 .0 * 13.7 17.5 78 Reno Hill 8410 .1 .4 25* 19.3 22.4 86 Windy Peak 7900 .2 .0 * 11.1 15.7 71 ----- ----- Basin Index (%) 67* 79 LARAMIE RIVER Brooklyn Lake 10250 11.2 11.6 97 29.8 28.5 105 Cinnabar Park 9670 3.0 7.6 39 26.3 29.3 90 Crow Creek 8320 .0 .0 * 12.1 15.1 80 Deadman Hill 10240 6.0 12.6 48 22.8 24.2 94 Rawah 9100 .0 .0 * 17.0 20.8 82 Roach 9710 .2 5.6 4 20.4 24.5 83 Windy Peak 7900 .2 .0 * 11.1 15.7 71 ----- ----- Basin Index (%) 55 88 S. PLATTE Crow Creek 8320 .0 .0 * 12.1 15.1 80 ----- ----- Basin Index (%) * 80 LITTLE SNAKE RIVER Battle Mountain 7460 .0 .0 * 17.9 19.8 90 Divide Peak 8700 .0 .2 0* 22.9 26.4 87 Elk River 8710 .0 .0 * 23.0 24.4 94 Elkhead Divide 8780 .0 -M * 21.6 -M * Little Snake River 8930 .0 7.8 0 34.6 40.3 86 Old Battle 9850 21.8 30.0 73 33.2 42.2 79 Sage Creek Basin 7830 .0 .0 * -M 16.9 * Sandstone RS 8150 .0 .0 * 17.1 22.0 78 Whiskey Park 8950 7.0 15.0 47 32.3 36.0 90 ----- ----- Basin Index (%) 54* 86 UPPER GREEN RIVER Big Sandy Opening 9100 .0 1.0 0* 15.7 17.2 91 Blind Bull Sum 8880 27.1 19.0 143 21.8 22.4 97 East Rim Divide 8010 .0 .0 * 14.9 14.6 102 Elkhart Park G.S. 9410 .0 2.4 0 16.1 17.0 95 Gros Ventre Summit 8760 .0 .8 0* 16.3 16.0 102 Gunsight Pass 9830 6.2 8.6 72 17.5 17.8 98 Indian Creek 9400 12.6 15.2 83 26.7 25.4 105 Kendall R.S. 7790 .1 .0 * 17.3 16.4 105 Larsen Creek 8880 .0 .0 * 15.2 17.2 88 Loomis Park 8240 .1 .0 * 20.5 21.1 97 New Fork Lake 8380 .0 .0 * -M 14.4 * Pocket Creek 9370 -M -M * -M -M * Snider Basin 8080 .0 .0 * 18.8 17.0 111 Spring Creek Divide 9020 19.6 18.6 105 29.1 28.7 101 Triple Peak 8520 7.3 6.2 118 31.6 31.5 100 ----- ----- Basin Index (%) 102* 100 LOWER GREEN RIVER Blacks Fork Jct 8880 .1 .0 * 15.3 15.4 99 Buck Pasture 9620 .0 -M * 22.0 -M * EF Blacks Fork GS 9360 .0 .0 * 16.3 16.6 98 Hams Fork 7870 -M .0 * 15.8 14.6 108 Henrys Fork 10180 -M -M * 15.3 -M * Hewinta 9510 .0 .0 * 16.9 17.4 97 Hickerson Park 9130 .0 .0 * 11.8 14.0 84 Hole-in-Rock 9170 .0 .0 * 12.3 13.9 88 Indian Creek 9400 12.6 15.2 83 26.7 25.4 105 Kelley R.S. 8240 .0 .0 * 21.5 21.9 98 Spirit Lk 10240 .0 1.4 0* 17.5 20.6 85 Steel Creek Park 10140 6.6 11.5 57 20.1 21.0 96 ----- ----- Basin Index (%) 69* 96 UPPER BEAR RIVER Bear River RS 8510 .0 .0 * 14.8 15.0 99 Bug Lake 7980 .0 .0 * 22.0 21.7 101 Burts Miller Ranch 7900 .1 .0 * -M 9.8 * Chalk Creek #1 9160 .1 7.4 1 26.8 29.8 90 Giveout 6940 .0 .0 * 16.1 16.6 97 Hayden Fork 9160 .0 .0 * 24.0 25.4 94 Kelley R.S. 8240 .0 .0 * 21.5 21.9 98 Lily Lake 9130 .0 .0 * 17.2 21.0 82 Monte Cristo 8930 2.1 9.6 22 28.4 30.4 93 Salt River Summit 7630 .0 .0 * 16.4 19.6 84 Spring Creek Divide 9020 19.6 18.6 105 29.1 28.7 101 Trial Lake 9970 4.0 9.6 42 27.5 27.6 100 ----- ----- Basin Index (%) 57* 95 ----------------------------------------------------------------------------- -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.