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: MAY 12 , 2026 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Median Med ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7040 .0 4.2 0 26.2 23.6 111 Blind Bull Sum 8880 21.2 24.2 88 17.4 20.4 85 Cottonwood Creek 7710 .0 14.0 0 27.7 29.8 93 East Rim Divide 8010 .0 .6 0* 13.0 13.6 96 Grand Targhee 9260 -M 46.8 * -M 37.2 * Granite Creek 6770 .0 4.5 0 22.3 21.4 104 Grassy Lake 7330 2.3 21.4 11 36.1 39.8 91 Gros Ventre Summit 8760 .0 9.4 0 16.8 15.1 111 Gunsight Pass 9820 1.4 12.3 11 18.1 17.3 105 Lewis Lake Divide 7880 13.6 29.1 47 43.5 38.8 112 Loomis Park 8240 .0 6.8 0 18.2 19.9 91 Phillips Bench 8170 10.1 23.1 44 30.8 30.2 102 Salt River Summit 7630 .0 3.3 0 17.9 18.8 95 Snake River Station 6900 .0 1.6 0* 24.2 26.0 93 Somsen Ranch 6830 .0 .0 * 18.9 19.2 98 Spring Creek Divide 9020 20.0 23.7 84 27.6 27.0 102 Thumb Divide 7970 .0 6.8 0 23.5 22.2 106 Togwotee Pass 9590 17.4 25.8 67 31.9 28.8 111 Triple Peak 8520 2.2 16.4 13 30.2 29.8 101 Two Ocean Plateau 9240 31.2 33.0 95 36.1 30.6 118 Willow Creek 8060 3.5 22.4 16 36.6 39.4 93 Younts Peak 8340 -M 12.5 * 24.1 18.0 134 ----- ----- Basin Index (%) 43 102 MADISON HEADWATERS IN WYOMING Black Bear 8160 24.6 40.5 61 39.5 42.0 94 Canyon 7870 .3 9.0 3 17.6 18.9 93 Madison Plateau 7710 11.6 21.2 55 30.0 30.1 100 West Yellowstone 6680 .0 .0 * 17.1 16.3 105 Whiskey Creek 6790 1.0 9.4 11 25.3 23.4 108 ----- ----- Basin Index (%) 47 99 YELLOWSTONE HEADWATERS IN WYOMING Beartooth Lake 9360 27.6 24.2 114 30.2 24.6 123 Canyon 7870 .3 9.0 3 17.6 18.9 93 Evening Star 9030 24.8 26.5 94 38.8 33.2 117 Fisher Creek 9110 37.4 36.2 103 42.2 39.4 107 Monument Peak 8740 16.1 21.1 76 30.5 26.6 115 Northeast Entrance 7420 .0 .0 * 18.6 15.2 122 Parker Peak 9420 16.6 23.2 72 30.1 23.4 129 Sylvan Lake 8440 4.0 17.0 24 28.4 27.4 104 Thumb Divide 7970 .0 6.8 0 23.5 22.2 106 Two Ocean Plateau 9240 31.2 33.0 95 36.1 30.6 118 White Mill 8730 24.6 26.6 92 30.2 26.5 114 Wolverine 7660 .0 .0 * 18.2 14.8 123 ----- ----- Basin Index (%) 82 114 WIND RIVER Burroughs Creek 8760 -M -M * 20.5 -M * Castle Creek 8410 .0 .0 * 9.7 10.8 90 Cold Springs 9640 .0 2.0 0 14.5 13.0 112 Deer Park 9690 2.8 14.3 20 20.8 23.2 90 Hobbs Park 10080 9.3 16.0 58 18.7 18.2 103 Kirwin 9580 4.2 11.6 36 21.5 16.0 134 Little Warm 9370 .0 7.4 0 17.0 14.8 115 South Pass 9040 .5 13.2 4 18.0 19.5 92 St. Lawrence Alt 8610 -M -M * -M -M * Togwotee Pass 9590 17.4 25.8 67 31.9 28.8 111 Townsend Creek 8720 .0 4.1 0 13.6 15.5 88 ----- ----- Basin Index (%) 36 104 BIGHORN BASIN Bald Mtn. 9360 19.5 21.2 92 19.9 19.8 101 Bear Trap Meadow 8200 .1 .2 50* 12.2 12.4 98 Bone Springs Div 9340 13.1 17.6 74 14.5 18.9 77 Grave Springs 8560 .1 6.4 2 11.0 12.8 86 Kirwin 9580 4.2 11.6 36 21.5 16.0 134 Marquette 8800 .1 8.3 1 9.4 14.0 67 Middle Powder 7760 .0 8.8 0 12.8 13.4 96 Owl Creek 8990 .0 .5 0* 8.3 9.4 88 Powder River Pass 9480 .1 9.0 1 17.6 16.8 105 Shell Creek 9570 15.2 16.7 91 18.0 17.3 104 Timber Creek 7910 .0 1.0 0 6.0 11.7 51 ----- ----- Basin Index (%) 52 93 SHOSHONE RIVER Blackwater 9830 24.4 24.0 102 31.0 26.8 116 Evening Star 9030 24.8 26.5 94 38.8 33.2 117 Marquette 8800 .1 8.3 1 9.4 14.0 67 Sylvan Lake 8440 4.0 17.0 24 28.4 27.4 104 Sylvan Road 7140 .0 .0 * 21.4 19.1 112 Younts Peak 8340 -M 12.5 * 24.1 18.0 134 ----- ----- Basin Index (%) 70 111 POWDER RIVER Bear Trap Meadow 8200 .1 .2 50* 12.2 12.4 98 Cloud Peak Reservoir 9830 6.7 16.0 42 17.6 18.8 94 Grave Springs 8560 .1 6.4 2 11.0 12.8 86 Hanson Sawmill 8360 .0 1.4 0 11.8 12.3 96 Middle Powder 7760 .0 8.8 0 12.8 13.4 96 Powder River Pass 9480 .1 9.0 1 17.6 16.8 105 Soldier Park 8680 .1 .7 14* 9.8 12.0 82 ----- ----- Basin Index (%) 17 94 TONGUE RIVER Big Goose 8010 -M 8.2 * 12.6 15.7 80 Bone Springs Div 9340 13.1 17.6 74 14.5 18.9 77 Burgess Junction 7910 4.0 10.4 38 14.6 16.0 91 Dome Lake 8890 2.2 10.6 21 16.5 18.2 91 Little Goose 8560 .2 9.4 2 16.1 16.9 95 Sucker Creek 8840 2.0 12.2 16 18.1 19.1 95 Tie Creek 7050 .0 .2 0* 13.0 15.8 82 ----- ----- Basin Index (%) 36 87 BELLE FOURCHE Blind Park 6900 .0 .0 * 13.4 14.4 93 Cole Canyon 5930 .0 .0 * 11.5 13.6 85 North Rapid Creek 6150 .0 .0 * 10.7 12.2 88 ----- ----- Basin Index (%) * 89 CHEYENNE RIVER BASIN Blind Park 6900 .0 .0 * 13.4 14.4 93 North Rapid Creek 6150 .0 .0 * 10.7 12.2 88 ----- ----- Basin Index (%) * 91 UPPER N. PLATTE Arapaho Ridge 10960 7.4 22.4 33 20.7 27.1 76 Blackhall Mtn 9830 7.5 33.3 23 26.7 38.3 70 Cinnabar Park 9670 .1 16.6 1 21.0 27.8 76 Columbine 9170 .0 10.8 0 24.3 30.4 80 Divide Peak 8700 .1 12.6 1 19.0 25.6 74 Joe Wright 10140 2.7 22.4 12 24.9 32.4 77 Laprele Creek 8370 .0 .9 0* 13.2 16.0 82 Med Bow 10500 24.7 -M * 32.1 -M * Never Summer 10300 12.8 22.2 58 14.5 21.5 67 North French Creek 10150 15.4 32.3 48 28.8 35.1 82 Old Battle 9840 22.2 37.2 60 32.9 41.2 80 Rawah 9100 .1 3.2 3 14.7 20.2 73 Sage Creek Basin 7830 .0 .0 * 12.4 16.1 77 Sand Lake 10080 20.4 32.1 64 25.4 31.5 81 South Brush Creek 8480 .5 .7 71* 11.9 18.6 64 Tower 10610 26.7 48.4 55 39.5 47.8 83 Webber Springs 9250 .4 17.4 2 24.4 31.6 77 Whiskey Park 8950 6.2 26.0 24 29.2 35.2 83 Willow Creek Pass 9520 6.0 13.6 44 13.6 16.8 81 Zirkel 9320 .2 18.8 1 30.0 35.6 84 ----- ----- Basin Index (%) 35 78 SWEETWATER Deer Park 9690 2.8 14.3 20 20.8 23.2 90 Larsen Creek 8880 .1 .2 50* 13.4 16.5 81 South Pass 9040 .5 13.2 4 18.0 19.5 92 ----- ----- Basin Index (%) 12 88 LOWER N. PLATTE Casper Mtn. 7940 .1 9.7 1 12.4 18.3 68 Laprele Creek 8370 .0 .9 0* 13.2 16.0 82 Reno Hill 8410 .2 9.4 2 15.6 21.2 74 Windy Peak 7890 .0 .0 * 10.5 14.3 73 ----- ----- Basin Index (%) 2 74 LARAMIE RIVER Brooklyn Lake 10250 .4 20.8 2 23.2 27.2 85 Cinnabar Park 9670 .1 16.6 1 21.0 27.8 76 Crow Creek 8320 .0 .0 * 11.0 13.8 80 Deadman Hill 10240 -M 18.5 * 15.4 23.2 66 Rawah 9100 .1 3.2 3 14.7 20.2 73 Roach 9710 .1 14.6 1 16.8 22.8 74 Windy Peak 7890 .0 .0 * 10.5 14.3 73 ----- ----- Basin Index (%) 1 75 S. PLATTE Crow Creek 8320 .0 .0 * 11.0 13.8 80 ----- ----- Basin Index (%) * 80 LITTLE SNAKE RIVER Battle Mountain 7460 .1 .0 * 16.2 18.4 88 Divide Peak 8700 .1 12.6 1 19.0 25.6 74 Elk River 8710 .0 5.0 0 22.9 23.5 97 Elkhead Divide 8780 .8 -M * -M -M * Little Snake River 8930 .0 20.6 0 31.0 39.0 79 Old Battle 9840 22.2 37.2 60 32.9 41.2 80 Sage Creek Basin 7830 .0 .0 * 12.4 16.1 77 Sandstone RS 8150 .0 .6 0* 16.6 20.7 80 Whiskey Park 8950 6.2 26.0 24 29.2 35.2 83 ----- ----- Basin Index (%) 28 82 UPPER GREEN RIVER Big Sandy Opening 9100 1.8 9.2 20 14.2 15.8 90 Blind Bull Sum 8880 21.2 24.2 88 17.4 20.4 85 East Rim Divide 8010 .0 .6 0* 13.0 13.6 96 Elkhart Park G.S. 9410 .0 9.4 0 14.3 15.1 95 Gros Ventre Summit 8760 .0 9.4 0 16.8 15.1 111 Gunsight Pass 9820 1.4 12.3 11 18.1 17.3 105 Indian Creek 9400 9.1 21.2 43 23.7 23.2 102 Kendall R.S. 7790 .1 .0 * 18.0 15.6 115 Larsen Creek 8880 .1 .2 50* 13.4 16.5 81 Loomis Park 8240 .0 6.8 0 18.2 19.9 91 New Fork Lake 8380 .0 2.7 0 14.1 13.0 108 Pocket Creek 9370 -M -M * -M -M * Snider Basin 8080 .0 3.5 0 16.0 16.0 100 Spring Creek Divide 9020 20.0 23.7 84 27.6 27.0 102 Triple Peak 8520 2.2 16.4 13 30.2 29.8 101 ----- ----- Basin Index (%) 40 99 LOWER GREEN RIVER Blacks Fork Jct 8880 .1 .0 * 12.2 15.1 81 Buck Pasture 9630 .0 -M * 16.9 -M * EF Blacks Fork GS 9360 .0 3.0 0 11.7 14.4 81 Hams Fork 7860 -M .0 * 14.0 13.8 101 Henrys Fork 10180 -M -M * 11.9 -M * Hewinta 9510 .0 1.0 0* 13.0 17.0 76 Hickerson Park 9120 .0 .2 0* 9.0 13.0 69 Hole-in-Rock 9170 .0 .0 * 9.7 13.1 74 Indian Creek 9400 9.1 21.2 43 23.7 23.2 102 Kelley R.S. 8240 -M 8.0 * 19.6 19.3 102 Spirit Lk 10240 .7 9.6 7 -M 20.0 * Steel Creek Park 10140 4.6 17.8 26 16.0 20.6 78 ----- ----- Basin Index (%) 27* 86 UPPER BEAR RIVER Bear River RS 8510 .0 .0 * 12.3 14.4 85 Bug Lake 7980 .0 12.1 0 22.7 20.0 114 Burts Miller Ranch 7900 .1 .0 * 12.1 8.8 138 Chalk Creek #1 9160 .2 19.4 1 23.8 27.7 86 Giveout 6940 .3 .0 * 16.0 15.0 107 Hayden Fork 9170 .0 3.8 0 21.1 24.3 87 Kelley R.S. 8240 -M 8.0 * 19.6 19.3 102 Lily Lake 9130 .0 5.0 0 14.4 19.8 73 Monte Cristo 8930 1.8 20.8 9 28.7 29.4 98 Salt River Summit 7630 .0 3.3 0 17.9 18.8 95 Spring Creek Divide 9020 20.0 23.7 84 27.6 27.0 102 Trial Lake 9970 5.8 20.9 28 23.8 26.5 90 ----- ----- Basin Index (%) 26 96 ---------------------------------------------------------------------------- -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.