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: APRIL 29 , 2025 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Median Med ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7040 11.9 11.0 108 22.3 22.2 100 Blind Bull Sum 8880 28.1 24.6 114 20.3 19.2 106 Cottonwood Creek 7710 20.5 17.8 115 30.5 27.8 110 East Rim Divide 8010 3.8 7.0 54 13.7 12.2 112 Grand Targhee 9260 42.1 47.6 88 32.6 35.8 91 Granite Creek 6770 11.0 10.0 110 19.6 20.4 96 Grassy Lake 7330 25.5 30.0 85 36.3 38.3 95 Gros Ventre Summit 8760 12.0 12.7 94 15.3 14.2 108 Gunsight Pass 9830 14.0 13.0 108 16.0 16.0 100 Lewis Lake Divide 7880 27.3 31.4 87 37.5 36.4 103 Loomis Park 8240 12.1 11.8 103 19.4 17.8 109 Phillips Bench 8160 24.3 27.7 88 28.6 28.4 101 Salt River Summit 7630 9.9 9.0 110 15.0 17.6 85 Snake River Station 6900 10.0 10.9 92 23.4 24.2 97 Somsen Ranch 6830 .9 2.6 35 17.6 17.9 98 Spring Creek Divide 9020 28.5 25.4 112 27.2 25.2 108 Thumb Divide 7970 -M 14.4 * -M 20.6 * Togwotee Pass 9590 24.8 25.2 98 27.6 26.8 103 Triple Peak 8520 24.0 19.5 123 29.4 27.8 106 Two Ocean Plateau 9240 33.1 33.0 100 27.2 29.0 94 Willow Creek 8060 29.5 27.8 106 39.4 36.6 108 Younts Peak 8340 11.8 14.6 81 15.9 17.0 94 ----- ----- Basin Index (%) 98 101 MADISON HEADWATERS IN WYOMING Black Bear 8160 32.0 40.2 80 36.5 40.4 90 Canyon 7870 11.1 12.4 90 15.0 17.6 85 Madison Plateau 7710 20.2 23.2 87 26.7 27.6 97 West Yellowstone 6680 .2 2.2 9 13.9 15.6 89 Whiskey Creek 6790 12.5 14.6 86 22.3 22.3 100 ----- ----- Basin Index (%) 82 93 YELLOWSTONE HEADWATERS IN WYOMING Beartooth Lake 9360 25.2 24.0 105 23.3 22.4 104 Canyon 7870 11.1 12.4 90 15.0 17.6 85 Evening Star 9040 27.6 27.2 101 31.2 31.1 100 Fisher Creek 9110 32.5 36.0 90 34.4 36.3 95 Monument Peak 8740 20.2 22.2 91 24.3 24.8 98 Northeast Entrance 7420 2.8 3.6 78 14.9 14.2 105 Parker Peak 9420 27.1 23.6 115 26.3 22.3 118 Sylvan Lake 8440 15.0 20.6 73 24.3 26.0 93 Thumb Divide 7970 -M 14.4 * -M 20.6 * Two Ocean Plateau 9240 33.1 33.0 100 27.2 29.0 94 White Mill 8730 27.1 25.8 105 24.6 25.1 98 Wolverine 7650 8.2 4.7 174 17.1 13.5 127 ----- ----- Basin Index (%) 99 100 WIND RIVER Burroughs Creek 8760 10.3 -M * 18.4 -M * Castle Creek 8410 1.7 .8 212 10.0 9.4 106 Cold Springs 9640 3.9 4.6 85 11.1 11.2 99 Deer Park 9690 17.5 15.3 114 22.2 21.1 105 Hobbs Park 10080 15.5 16.2 96 17.7 16.1 110 Kirwin 9580 13.3 12.0 111 16.3 14.2 115 Little Warm 9370 9.7 9.4 103 15.1 13.2 114 South Pass 9040 14.0 15.0 93 19.4 18.1 107 St. Lawrence Alt 8610 .0 -M * 11.7 -M * Togwotee Pass 9590 24.8 25.2 98 27.6 26.8 103 Townsend Creek 8720 11.1 9.2 121 16.3 13.3 123 ----- ----- Basin Index (%) 104 109 BIGHORN BASIN Bald Mtn. 9360 23.0 20.9 110 19.3 18.2 106 Bear Trap Meadow 8200 .7 3.2 22 8.9 10.6 84 Bone Springs Div 9340 19.0 17.5 109 13.8 18.0 77 Grave Springs 8560 5.3 8.6 62 11.2 11.8 95 Kirwin 9580 13.3 12.0 111 16.3 14.2 115 Marquette 8800 10.9 8.2 133 14.2 11.8 120 Middle Powder 7760 9.2 11.9 77 10.0 12.0 83 Owl Creek 8990 .6 2.0 30 9.3 8.2 113 Powder River Pass 9480 6.4 10.2 63 13.0 15.2 86 Shell Creek 9570 14.9 16.3 91 14.4 15.8 91 Timber Creek 7910 5.6 3.4 165 11.1 9.6 116 ----- ----- Basin Index (%) 95 97 SHOSHONE RIVER Blackwater 9840 27.9 25.2 111 26.0 24.8 105 Evening Star 9040 27.6 27.2 101 31.2 31.1 100 Marquette 8800 10.9 8.2 133 14.2 11.8 120 Sylvan Lake 8440 15.0 20.6 73 24.3 26.0 93 Sylvan Road 7140 .0 6.2 0 15.2 17.9 85 Younts Peak 8340 11.8 14.6 81 15.9 17.0 94 ----- ----- Basin Index (%) 91 99 POWDER RIVER Bear Trap Meadow 8200 .7 3.2 22 8.9 10.6 84 Cloud Peak Reservoir 9830 12.3 15.7 78 15.2 16.4 93 Grave Springs 8560 5.3 8.6 62 11.2 11.8 95 Hansen Sawmill 8360 3.9 4.0 98 10.4 10.4 100 Middle Powder 7760 9.2 11.9 77 10.0 12.0 83 Powder River Pass 9480 6.4 10.2 63 13.0 15.2 86 Soldier Park 8680 .7 5.0 14 9.0 11.2 80 ----- ----- Basin Index (%) 66 89 TONGUE RIVER Big Goose 8010 9.0 8.6 105 13.2 12.6 105 Bone Springs Div 9340 19.0 17.5 109 13.8 18.0 77 Burgess Junction 7900 13.0 12.2 107 14.8 14.7 101 Dome Lake 8890 12.0 11.0 109 10.9 15.7 69 Little Goose 8560 10.8 10.4 104 15.6 15.6 100 Sucker Creek 8840 13.3 12.6 106 17.8 16.9 105 Tie Creek 7050 4.8 2.6 185 14.7 13.6 108 ----- ----- Basin Index (%) 109 94 BELLE FOURCHE Blind Park 6900 .2 1.0 20 11.0 13.2 83 Cole Canyon 5930 .0 1.0 0 11.8 11.5 103 North Rapid Creek 6150 -M .9 * 10.0 10.7 93 ----- ----- Basin Index (%) 10 93 CHEYENNE RIVER BASIN Blind Park 6900 .2 1.0 20 11.0 13.2 83 North Rapid Creek 6150 -M .9 * 10.0 10.7 93 ----- ----- Basin Index (%) 20 88 UPPER N. PLATTE Arapaho Ridge 10960 19.9 23.8 84 22.1 25.0 88 Blackhall Mtn 9830 28.6 31.6 91 33.3 34.3 97 Cinnabar Park 9670 13.1 19.4 68 23.3 25.9 90 Columbine 9170 12.3 18.4 67 28.2 28.6 99 Divide Peak 8700 9.4 17.6 53 21.0 24.6 85 Joe Wright 10140 21.1 22.0 96 30.2 29.6 102 Laprele Creek 8370 2.8 6.4 44 11.4 14.4 79 Med Bow 10500 40.1 -M * 36.2 -M * Never Summer 10300 21.5 22.1 97 18.4 19.2 96 North French Creek 10150 31.2 31.8 98 31.9 32.4 98 Old Battle 9850 29.8 35.6 84 30.7 38.1 81 Rawah 9100 4.4 7.2 61 15.5 18.9 82 Sage Creek Basin 7830 .0 2.5 0 12.8 14.4 89 Sand Lake 10080 28.7 31.0 93 29.2 28.8 101 South Brush Creek 8480 .8 7.6 11 13.2 15.8 84 Tower 10610 42.1 45.9 92 44.6 45.0 99 Webber Springs 9250 15.2 21.6 70 24.3 29.0 84 Whiskey Park 8950 23.1 26.4 88 30.4 31.8 96 Willow Creek Pass 9520 13.2 15.6 85 14.7 15.7 94 Zirkel 9320 12.6 24.2 52 32.0 34.6 92 ----- ----- Basin Index (%) 80 92 SWEETWATER Deer Park 9690 17.5 15.3 114 22.2 21.1 105 Larsen Creek 8880 .2 3.6 6 14.0 15.6 90 South Pass 9040 14.0 15.0 93 19.4 18.1 107 ----- ----- Basin Index (%) 94 101 LOWER N. PLATTE Casper Mtn. 7940 7.3 13.1 56 13.4 17.4 77 Laprele Creek 8370 2.8 6.4 44 11.4 14.4 79 Reno Hill 8410 11.8 13.6 87 16.7 18.2 92 Windy Peak 7900 1.4 4.4 32 8.8 12.4 71 ----- ----- Basin Index (%) 62 81 LARAMIE RIVER Brooklyn Lake 10250 20.0 23.1 87 26.0 24.9 104 Cinnabar Park 9670 13.1 19.4 68 23.3 25.9 90 Crow Creek 8320 .0 .8 0 9.5 12.4 77 Deadman Hill 10240 15.6 19.7 79 19.1 21.0 91 Rawah 9100 4.4 7.2 61 15.5 18.9 82 Roach 9710 9.8 16.0 61 18.4 21.4 86 Windy Peak 7900 1.4 4.4 32 8.8 12.4 71 ----- ----- Basin Index (%) 71 88 S. PLATTE Crow Creek 8320 .0 .8 0 9.5 12.4 77 ----- ----- Basin Index (%) 0 77 LITTLE SNAKE RIVER Battle Mountain 7460 .0 .2 0* 16.5 17.4 95 Divide Peak 8700 9.4 17.6 53 21.0 24.6 85 Elk River 8710 6.6 13.3 50 21.2 22.2 95 Elkhead Divide 8780 9.1 -M * 20.8 -M * Little Snake River 8930 18.3 24.0 76 32.6 36.4 90 Old Battle 9850 29.8 35.6 84 30.7 38.1 81 Sage Creek Basin 7830 .0 2.5 0 12.8 14.4 89 Sandstone RS 8150 2.9 6.4 45 15.9 19.6 81 Whiskey Park 8950 23.1 26.4 88 30.4 31.8 96 ----- ----- Basin Index (%) 72 89 UPPER GREEN RIVER Big Sandy Opening 9100 11.9 12.2 98 13.9 14.8 94 Blind Bull Sum 8880 28.1 24.6 114 20.3 19.2 106 East Rim Divide 8010 3.8 7.0 54 13.7 12.2 112 Elkhart Park G.S. 9410 11.1 11.9 93 14.8 13.8 107 Gros Ventre Summit 8760 12.0 12.7 94 15.3 14.2 108 Gunsight Pass 9830 14.0 13.0 108 16.0 16.0 100 Indian Creek 9400 24.4 22.6 108 24.7 21.0 118 Kendall R.S. 7790 7.5 5.2 144 16.5 14.4 115 Larsen Creek 8880 .2 3.6 6 14.0 15.6 90 Loomis Park 8240 12.1 11.8 103 19.4 17.8 109 New Fork Lake 8380 5.7 6.6 86 -M 11.8 * Pocket Creek 9370 -M -M * -M -M * Snider Basin 8080 8.2 7.7 106 17.9 15.0 119 Spring Creek Divide 9020 28.5 25.4 112 27.2 25.2 108 Triple Peak 8520 24.0 19.5 123 29.4 27.8 106 ----- ----- Basin Index (%) 104 107 LOWER GREEN RIVER Blacks Fork Jct 8880 3.3 4.4 75 14.3 14.1 101 Buck Pasture 9620 8.1 -M * 19.9 -M * EF Blacks Fork GS 9360 3.2 7.8 41 13.7 13.3 103 Hams Fork 7870 1.8 4.2 43 14.6 11.8 124 Henrys Fork 10180 -M -M * 14.1 -M * Hewinta 9510 1.4 6.6 21 15.5 15.6 99 Hickerson Park 9130 .0 4.4 0 10.7 12.0 89 Hole-in-Rock 9170 .0 3.4 0 11.2 11.6 97 Indian Creek 9400 24.4 22.6 108 24.7 21.0 118 Kelley R.S. 8240 12.7 11.8 108 19.6 17.8 110 Spirit Lk 10240 9.2 12.2 75 16.0 19.4 82 Steel Creek Park 10140 15.4 16.9 91 18.5 18.4 101 ----- ----- Basin Index (%) 76 102 UPPER BEAR RIVER Bear River RS 8510 .0 1.5 0 13.8 13.8 100 Bug Lake 7980 11.2 15.2 74 20.6 19.4 106 Burts Miller Ranch 7900 .0 .0 * 12.9 8.7 148 Chalk Creek #1 9160 16.0 21.2 75 24.6 25.6 96 Giveout 6940 .0 .0 * 14.1 13.6 104 Hayden Fork 9160 2.6 9.9 26 22.4 23.1 97 Kelley R.S. 8240 12.7 11.8 108 19.6 17.8 110 Lily Lake 9130 5.9 10.4 57 15.9 17.8 89 Monte Cristo 8930 18.4 25.4 72 26.0 28.0 93 Salt River Summit 7630 9.9 9.0 110 15.0 17.6 85 Spring Creek Divide 9020 28.5 25.4 112 27.2 25.2 108 Trial Lake 9970 20.6 23.5 88 25.8 24.5 105 ----- ----- Basin Index (%) 82 101 ---------------------------------------------------------------------------- -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.