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: APRIL 29 , 2024 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Median Med ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7060 9.0 11.0 82 21.8 22.2 98 Blind Bull Sum 8650 24.6 24.6 100 18.0 19.2 94 Cottonwood Creek 7670 13.8 17.8 78 27.3 27.8 98 East Rim Divide 7930 -M 7.0 * 12.0 12.2 98 Grand Targhee 9260 41.8 47.6 88 32.7 35.8 91 Granite Creek 6770 8.1 10.0 81 17.3 20.4 85 Grassy Lake 7265 23.7 30.0 79 36.8 38.3 96 Gros Ventre Summit 8750 9.6 12.7 76 -M 14.2 * Gunsight Pass 9820 11.3 13.0 87 15.7 16.0 98 Lewis Lake Divide 7850 26.7 31.4 85 37.3 36.4 102 Loomis Park 8240 6.2 11.8 53 16.1 17.8 90 Phillips Bench 8200 23.2 27.7 84 30.1 28.4 106 Salt River Summit 7640 7.7 9.0 86 15.4 17.6 88 Snake River Station 6920 8.3 10.9 76 24.0 24.2 99 Somsen Ranch 6800 7.5 2.6 288 22.5 17.9 126 Spring Creek Divide 9000 23.6 25.4 93 23.8 25.2 94 Thumb Divide 7980 13.1 14.4 91 19.5 20.6 95 Togwotee Pass 9580 19.9 25.2 79 21.2 26.8 79 Triple Peak 8500 17.1 19.5 88 26.6 27.8 96 Two Ocean Plateau 9240 29.5 33.0 89 28.1 29.0 97 Willow Creek 8080 26.6 27.8 96 37.0 36.6 101 Younts Peak 8350 9.7 14.6 66 16.4 17.0 96 ----- ----- Basin Index (%) 86 97 MADISON HEADWATERS IN WYOMING Black Bear 8170 33.5 40.2 83 40.7 40.4 101 Canyon 7870 9.2 -M * 14.8 -M * Madison Plateau 7750 19.1 23.2 82 24.8 27.6 90 West Yellowstone 6700 -M 2.2 * 14.6 15.6 94 Whiskey Creek 6800 10.7 14.6 73 21.5 22.3 96 ----- ----- Basin Index (%) 81 96 YELLOWSTONE HEADWATERS IN WYOMING Beartooth Lake 9360 17.6 24.0 73 17.4 22.4 78 Canyon 7870 9.2 -M * 14.8 -M * Evening Star 9200 19.9 27.2 73 28.4 31.1 91 Fisher Creek 9100 24.4 36.0 68 28.3 36.3 78 Monument Peak 8850 14.7 22.2 66 20.5 24.8 83 Northeast Entrance 7350 .1 3.6 3 11.8 14.2 83 Parker Peak 9400 20.6 23.6 87 24.0 22.3 108 Sylvan Lake 8420 12.3 20.6 60 24.6 26.0 95 Thumb Divide 7980 13.1 14.4 91 19.5 20.6 95 Two Ocean Plateau 9240 29.5 33.0 89 28.1 29.0 97 White Mill 8700 18.2 25.8 71 19.9 25.1 79 Wolverine 7650 .6 4.7 13 14.4 13.5 107 ----- ----- Basin Index (%) 73 89 WIND RIVER Burroughs Creek 8750 7.2 -M * 13.0 -M * Castle Creek 8400 .1 .8 12 9.3 9.4 99 Cold Springs 9630 4.3 4.6 93 13.7 11.2 122 Deer Park 9700 17.4 15.3 114 23.4 21.1 111 Hobbs Park 10100 18.0 16.2 111 19.8 16.1 123 Kirwin 9550 13.8 12.0 115 17.9 14.2 126 Little Warm 9370 8.9 9.4 95 15.5 13.2 117 South Pass 9040 14.4 15.0 96 19.9 18.1 110 St. Lawrence Alt 8620 1.6 -M * 12.6 -M * Togwotee Pass 9580 19.9 25.2 79 21.2 26.8 79 Townsend Creek 8700 9.1 9.2 99 16.3 13.3 123 ----- ----- Basin Index (%) 98 109 BIGHORN BASIN Bald Mtn. 9380 14.7 20.9 70 14.6 18.2 80 Bear Trap Meadow 8200 1.2 3.2 38 10.9 10.6 103 Bone Springs Div 9350 14.5 17.5 83 14.2 18.0 79 Grave Springs 8550 5.7 8.6 66 11.2 11.8 95 Kirwin 9550 13.8 12.0 115 17.9 14.2 126 Marquette 8760 15.4 8.2 188 19.3 11.8 164 Middle Powder 7760 10.4 11.9 87 11.6 12.0 97 Owl Creek 8975 3.2 2.0 160 10.8 8.2 132 Powder River Pass 9480 4.5 10.2 44 13.0 15.2 86 Shell Creek 9580 13.9 16.3 85 15.1 15.8 96 Timber Creek 7950 6.3 3.4 185 15.5 9.6 161 ----- ----- Basin Index (%) 91 106 SHOSHONE RIVER Blackwater 9780 23.7 25.2 94 25.5 24.8 103 Evening Star 9200 19.9 27.2 73 28.4 31.1 91 Marquette 8760 15.4 8.2 188 19.3 11.8 164 Sylvan Lake 8420 12.3 20.6 60 24.6 26.0 95 Sylvan Road 7120 -M 6.2 * 16.0 17.9 89 Younts Peak 8350 9.7 14.6 66 16.4 17.0 96 ----- ----- Basin Index (%) 85 101 POWDER RIVER Bear Trap Meadow 8200 1.2 3.2 38 10.9 10.6 103 Cloud Peak Reservoir 9860 12.9 15.7 82 17.3 16.4 105 Grave Springs 8550 5.7 8.6 66 11.2 11.8 95 Hansen Sawmill 8360 3.3 4.0 82 11.7 10.4 112 Middle Powder 7760 10.4 11.9 87 11.6 12.0 97 Powder River Pass 9480 4.5 10.2 44 13.0 15.2 86 Soldier Park 8720 .8 5.0 16 12.1 11.2 108 ----- ----- Basin Index (%) 66 100 TONGUE RIVER Big Goose 7990 6.6 8.6 77 13.5 12.6 107 Bone Springs Div 9350 14.5 17.5 83 14.2 18.0 79 Burgess Junction 7880 8.9 12.2 73 14.0 14.7 95 Dome Lake 8880 -M 11.0 * 14.7 15.7 94 Little Goose 8870 9.1 10.4 88 15.8 15.6 101 Sucker Creek 8880 10.0 12.6 79 17.2 16.9 102 Tie Creek 6870 .0 2.6 0 13.7 13.6 101 ----- ----- Basin Index (%) 77 96 BELLE FOURCHE Blind Park 6890 .0 1.0 0 7.7 13.2 58 Cole Canyon 5910 .0 1.0 0 8.2 11.5 71 North Rapid Creek 6130 -M .9 * 10.3 10.7 96 ----- ----- Basin Index (%) 0 74 CHEYENNE RIVER BASIN Blind Park 6890 .0 1.0 0 7.7 13.2 58 North Rapid Creek 6130 -M .9 * 10.3 10.7 96 ----- ----- Basin Index (%) 0 75 UPPER N. PLATTE Arapaho Ridge 10976 21.8 23.8 92 24.5 25.0 98 Blackhall Mtn 9839 34.7 31.6 110 38.2 34.3 111 Cinnabar Park 9707 18.8 19.4 97 26.1 25.9 101 Columbine 9167 16.2 18.4 88 28.6 28.6 100 Divide Peak 8730 14.3 17.6 81 25.7 24.6 104 Joe Wright 10158 22.1 22.0 100 29.1 29.6 98 Laprele Creek 8390 2.7 6.4 42 12.9 14.4 90 Med Bow 10512 42.5 -M * 37.0 -M * Never Summer 10323 23.4 22.1 106 19.0 19.2 99 North French Creek 10153 28.9 31.8 91 31.1 32.4 96 Old Battle 9860 33.4 35.6 94 36.2 38.1 95 Rawah 9069 10.2 7.2 142 19.7 18.9 104 Sage Creek Basin 7850 2.2 2.5 88 16.2 14.4 112 Sand Lake 10098 33.5 31.0 108 32.8 28.8 114 South Brush Creek 8495 6.1 7.6 80 14.4 15.8 91 Tower 10620 43.5 45.9 95 43.7 45.0 97 Webber Springs 9260 20.0 21.6 93 28.0 29.0 97 Whiskey Park 9020 26.9 26.4 102 32.1 31.8 101 Willow Creek Pass 9523 15.6 15.6 100 17.4 15.7 111 Zirkel 9338 17.0 24.2 70 31.4 34.6 91 ----- ----- Basin Index (%) 95 100 SWEETWATER Deer Park 9700 17.4 15.3 114 23.4 21.1 111 Larsen Creek 9000 .8 3.6 22 15.2 15.6 97 South Pass 9040 14.4 15.0 96 19.9 18.1 110 ----- ----- Basin Index (%) 96 107 LOWER N. PLATTE Casper Mtn. 7920 7.6 13.1 58 16.3 17.4 94 Laprele Creek 8390 2.7 6.4 42 12.9 14.4 90 Reno Hill 8430 8.5 13.6 62 16.2 18.2 89 Windy Peak 7915 4.8 4.4 109 11.8 12.4 95 ----- ----- Basin Index (%) 63 92 LARAMIE RIVER Brooklyn Lake 10250 23.4 23.1 101 29.1 24.9 117 Cinnabar Park 9707 18.8 19.4 97 26.1 25.9 101 Crow Creek 8335 .7 .8 88 12.4 12.4 100 Deadman Hill 10239 22.2 19.7 113 21.8 21.0 104 Rawah 9069 10.2 7.2 142 19.7 18.9 104 Roach 9740 13.2 16.0 82 19.6 21.4 92 Windy Peak 7915 4.8 4.4 109 11.8 12.4 95 ----- ----- Basin Index (%) 103 103 S. PLATTE Crow Creek 8335 .7 .8 88 12.4 12.4 100 ----- ----- Basin Index (%) 88 100 LITTLE SNAKE RIVER Battle Mountain 7498 .0 .2 0* 20.0 17.4 115 Divide Peak 8730 14.3 17.6 81 25.7 24.6 104 Elk River 8739 8.7 13.3 65 21.7 22.2 98 Elkhead Divide 8800 16.2 -M * 25.7 -M * Little Snake River 8928 23.4 24.0 98 36.0 36.4 99 Old Battle 9860 33.4 35.6 94 36.2 38.1 95 Sage Creek Basin 7850 2.2 2.5 88 16.2 14.4 112 Sandstone RS 8152 6.7 6.4 105 19.8 19.6 101 Whiskey Park 9020 26.9 26.4 102 32.1 31.8 101 ----- ----- Basin Index (%) 92 102 UPPER GREEN RIVER Big Sandy Opening 9080 10.6 12.2 87 15.6 14.8 105 Blind Bull Sum 8650 24.6 24.6 100 18.0 19.2 94 East Rim Divide 7930 -M 7.0 * 12.0 12.2 98 Elkhart Park G.S. 9400 7.7 11.9 65 13.0 13.8 94 Gros Ventre Summit 8750 9.6 12.7 76 -M 14.2 * Gunsight Pass 9820 11.3 13.0 87 15.7 16.0 98 Indian Creek 9425 22.1 22.6 98 22.3 21.0 106 Kendall R.S. 7740 1.4 5.2 27 13.8 14.4 96 Larsen Creek 9000 .8 3.6 22 15.2 15.6 97 Loomis Park 8240 6.2 11.8 53 16.1 17.8 90 New Fork Lake 8340 .8 6.6 12 -M 11.8 * Pocket Creek 9360 -M -M * -M -M * Snider Basin 8060 4.6 7.7 60 14.5 15.0 97 Spring Creek Divide 9000 23.6 25.4 93 23.8 25.2 94 Triple Peak 8500 17.1 19.5 88 26.6 27.8 96 ----- ----- Basin Index (%) 79 97 LOWER GREEN RIVER Blacks Fork Jct 8869 3.9 4.4 89 14.8 14.1 105 Buck Pasture 9632 10.6 -M * 17.8 -M * EF Blacks Fork GS 9360 4.8 7.8 62 10.8 13.3 81 Hams Fork 7840 -M 4.2 * 12.8 11.8 108 Henrys Fork 10182 -M -M * 14.6 -M * Hewinta 9500 4.8 6.6 73 15.7 15.6 101 Hickerson Park 9122 1.8 4.4 41 14.6 12.0 122 Hole-in-Rock 9168 1.4 3.4 41 11.7 11.6 101 Indian Creek 9425 22.1 22.6 98 22.3 21.0 106 Kelley R.S. 8180 12.0 11.8 102 19.6 17.8 110 Spirit Lk 10235 11.6 12.2 95 19.9 19.4 103 Steel Creek Park 10158 14.7 16.9 87 19.1 18.4 104 ----- ----- Basin Index (%) 86 104 UPPER BEAR RIVER Bear River RS 8777 .2 1.5 13 15.3 13.8 111 Bug Lake 7987 15.4 15.2 101 24.7 19.4 127 Burts Miller Ranch 8000 .1 .0 * 12.6 8.7 145 Chalk Creek #1 9171 20.3 21.2 96 27.3 25.6 107 Giveout 6930 -M .0 * 14.0 13.6 103 Hayden Fork 9130 6.6 9.9 67 24.3 23.1 105 Kelley R.S. 8180 12.0 11.8 102 19.6 17.8 110 Lily Lake 9133 8.5 10.4 82 16.8 17.8 94 Monte Cristo 8932 26.9 25.4 106 31.6 28.0 113 Salt River Summit 7640 7.7 9.0 86 15.4 17.6 88 Spring Creek Divide 9000 23.6 25.4 93 23.8 25.2 94 Trial Lake 9992 26.4 23.5 112 28.7 24.5 117 ----- ----- Basin Index (%) 96 108 ---------------------------------------------------------------------------- -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.