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 SUNDAY: MAY 26 , 2024 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Median Med ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7060 -M .0 * 24.7 25.2 98 Blind Bull Sum 8650 22.8 19.0 120 20.4 22.4 91 Cottonwood Creek 7670 4.5 3.4 132 31.7 31.0 102 East Rim Divide 7930 -M .0 * 13.8 14.6 95 Grand Targhee 9260 40.3 43.0 94 38.0 39.9 95 Granite Creek 6770 .0 .0 * 20.8 23.0 90 Grassy Lake 7265 12.7 11.3 112 39.9 42.6 94 Gros Ventre Summit 8750 .5 .8 62* -M 16.0 * Gunsight Pass 9820 7.3 8.6 85 18.7 17.8 105 Lewis Lake Divide 7850 16.0 18.0 89 41.0 40.4 101 Loomis Park 8240 .2 .0 * 18.4 21.1 87 Phillips Bench 8200 19.5 13.6 143 34.9 31.6 110 Salt River Summit 7640 .0 .0 * 16.7 19.6 85 Snake River Station 6920 .0 .0 * 26.2 28.2 93 Somsen Ranch 6800 -M .0 * 24.5 20.5 120 Spring Creek Divide 9000 19.7 18.6 106 26.7 28.7 93 Thumb Divide 7980 .7 .0 * 21.6 23.0 94 Togwotee Pass 9580 18.2 22.1 82 26.1 30.4 86 Triple Peak 8500 9.4 6.2 152 30.6 31.5 97 Two Ocean Plateau 9240 26.7 28.6 93 32.3 32.9 98 Willow Creek 8080 16.1 11.5 140 42.1 41.2 102 Younts Peak 8350 .2 2.8 7 19.2 19.8 97 ----- ----- Basin Index (%) 104 97 MADISON HEADWATERS IN WYOMING Black Bear 8170 29.5 32.8 90 44.3 45.3 98 Canyon 7870 .8 -M * 16.7 -M * Madison Plateau 7750 11.8 12.4 95 27.2 31.2 87 West Yellowstone 6700 -M .0 * 15.9 17.8 89 Whiskey Creek 6800 1.0 1.6 62 23.2 25.8 90 ----- ----- Basin Index (%) 90 92 YELLOWSTONE HEADWATERS IN WYOMING Beartooth Lake 9360 20.2 21.0 96 22.8 26.5 86 Canyon 7870 .8 -M * 16.7 -M * Evening Star 9200 16.2 22.2 73 32.1 35.2 91 Fisher Creek 9100 25.6 34.8 74 34.8 41.9 83 Monument Peak 8850 14.7 16.9 87 26.2 28.0 94 Northeast Entrance 7350 .1 .0 * 15.8 16.8 94 Parker Peak 9400 18.9 18.4 103 28.4 24.8 115 Sylvan Lake 8420 6.8 11.3 60 29.3 29.4 100 Thumb Divide 7980 .7 .0 * 21.6 23.0 94 Two Ocean Plateau 9240 26.7 28.6 93 32.3 32.9 98 White Mill 8700 17.9 20.9 86 24.5 27.8 88 Wolverine 7650 .0 .0 * 16.5 16.0 103 ----- ----- Basin Index (%) 85 94 WIND RIVER Burroughs Creek 8750 .2 -M * 14.3 -M * Castle Creek 8400 .0 .0 * 10.6 12.4 85 Cold Springs 9630 .1 .0 * 15.2 14.8 103 Deer Park 9700 15.7 8.0 196 27.6 24.7 112 Hobbs Park 10100 19.0 11.2 170 24.8 20.0 124 Kirwin 9550 7.1 5.8 122 20.6 17.4 118 Little Warm 9370 .8 .3 267* 18.1 15.8 115 South Pass 9040 9.7 5.4 180 24.1 21.0 115 St. Lawrence Alt 8620 -M -M * 15.3 -M * Togwotee Pass 9580 18.2 22.1 82 26.1 30.4 86 Townsend Creek 8700 3.0 .0 * 20.2 18.0 112 ----- ----- Basin Index (%) 139 107 BIGHORN BASIN Bald Mtn. 9380 19.0 16.9 112 20.3 21.2 96 Bear Trap Meadow 8200 -M .0 * 15.1 13.2 114 Bone Springs Div 9350 17.1 12.5 137 18.2 20.1 91 Grave Springs 8550 .4 .0 * 15.1 13.8 109 Kirwin 9550 7.1 5.8 122 20.6 17.4 118 Marquette 8760 13.0 .8 1625* 24.3 16.4 148 Middle Powder 7760 8.0 .0 * 16.4 15.2 108 Owl Creek 8975 -M .0 * 12.9 10.8 119 Powder River Pass 9480 3.6 2.0 180 18.8 18.2 103 Shell Creek 9580 15.8 13.0 122 20.1 18.9 106 Timber Creek 7950 4.1 .0 * 18.0 13.4 134 ----- ----- Basin Index (%) 173* 112 SHOSHONE RIVER Blackwater 9780 23.6 23.3 101 29.1 29.3 99 Evening Star 9200 16.2 22.2 73 32.1 35.2 91 Marquette 8760 13.0 .8 1625* 24.3 16.4 148 Sylvan Lake 8420 6.8 11.3 60 29.3 29.4 100 Sylvan Road 7120 .0 .0 * 18.6 20.2 92 Younts Peak 8350 .2 2.8 7 19.2 19.8 97 ----- ----- Basin Index (%) 99 102 POWDER RIVER Bear Trap Meadow 8200 -M .0 * 15.1 13.2 114 Cloud Peak Reservoir 9860 17.3 11.4 152 24.7 21.4 115 Grave Springs 8550 .4 .0 * 15.1 13.8 109 Hansen Sawmill 8360 -M .0 * 15.8 14.2 111 Middle Powder 7760 8.0 .0 * 16.4 15.2 108 Powder River Pass 9480 3.6 2.0 180 18.8 18.2 103 Soldier Park 8720 1.1 1.0 110 16.2 15.0 108 ----- ----- Basin Index (%) 211* 110 TONGUE RIVER Big Goose 7990 4.6 .8 575* 18.9 18.6 102 Bone Springs Div 9350 17.1 12.5 137 18.2 20.1 91 Burgess Junction 7880 7.4 3.4 218 19.5 17.8 110 Dome Lake 8880 -M 2.0 * 21.2 20.6 103 Little Goose 8870 9.4 4.7 200 22.3 20.0 112 Sucker Creek 8880 9.1 4.2 217 24.3 21.4 114 Tie Creek 6870 .1 .0 * 19.0 18.2 104 ----- ----- Basin Index (%) 186 105 BELLE FOURCHE Blind Park 6890 .1 .0 * 13.2 15.6 85 Cole Canyon 5910 .0 .0 * 13.7 14.6 94 North Rapid Creek 6130 -M .0 * 13.2 13.6 97 ----- ----- Basin Index (%) * 92 CHEYENNE RIVER BASIN Blind Park 6890 .1 .0 * 13.2 15.6 85 North Rapid Creek 6130 -M .0 * 13.2 13.6 97 ----- ----- Basin Index (%) * 90 UPPER N. PLATTE Arapaho Ridge 10976 19.6 15.3 128 28.0 28.6 98 Blackhall Mtn 9839 31.2 28.7 109 43.7 40.6 108 Cinnabar Park 9707 9.5 7.6 125 28.6 29.3 98 Columbine 9167 .0 .0 * 32.0 31.5 102 Divide Peak 8730 4.2 .2 2100* 31.2 26.4 118 Joe Wright 10158 18.1 16.1 112 33.1 34.2 97 Laprele Creek 8390 .1 .0 * 18.2 17.5 104 Med Bow 10512 -M -M * -M -M * Never Summer 10323 21.9 18.8 116 21.8 23.1 94 North French Creek 10153 26.1 25.6 102 36.0 36.6 98 Old Battle 9860 34.0 30.0 113 42.7 42.2 101 Rawah 9069 .3 .0 * 21.4 20.8 103 Sage Creek Basin 7850 -M .0 * 20.3 16.9 120 Sand Lake 10098 34.0 26.4 129 38.4 32.7 117 South Brush Creek 8495 .3 .0 * 17.5 19.6 89 Tower 10620 43.5 39.9 109 50.2 49.8 101 Webber Springs 9260 13.2 6.7 197 32.6 32.2 101 Whiskey Park 9020 20.2 15.0 135 36.8 36.0 102 Willow Creek Pass 9523 8.0 6.7 119 19.3 18.1 107 Zirkel 9338 3.5 1.0 350* 36.3 36.4 100 ----- ----- Basin Index (%) 121 103 SWEETWATER Deer Park 9700 15.7 8.0 196 27.6 24.7 112 Larsen Creek 9000 -M .0 * 17.6 17.2 102 South Pass 9040 9.7 5.4 180 24.1 21.0 115 ----- ----- Basin Index (%) 190 110 LOWER N. PLATTE Casper Mtn. 7920 3.1 .2 1550* 23.3 20.0 116 Laprele Creek 8390 .1 .0 * 18.2 17.5 104 Reno Hill 8430 6.4 .4 1600* 23.0 22.4 103 Windy Peak 7915 .2 .0 * 15.8 15.7 101 ----- ----- Basin Index (%) 1633* 106 LARAMIE RIVER Brooklyn Lake 10250 16.0 11.6 138 32.5 28.5 114 Cinnabar Park 9707 9.5 7.6 125 28.6 29.3 98 Crow Creek 8335 .0 .0 * 13.3 15.1 88 Deadman Hill 10239 16.3 12.6 129 24.6 24.2 102 Rawah 9069 .3 .0 * 21.4 20.8 103 Roach 9740 4.3 5.6 77 22.5 24.5 92 Windy Peak 7915 .2 .0 * 15.8 15.7 101 ----- ----- Basin Index (%) 125 100 S. PLATTE Crow Creek 8335 .0 .0 * 13.3 15.1 88 ----- ----- Basin Index (%) * 88 LITTLE SNAKE RIVER Battle Mountain 7498 .1 .0 * 23.6 19.8 119 Divide Peak 8730 4.2 .2 2100* 31.2 26.4 118 Elk River 8739 .4 .0 * 24.7 24.4 101 Elkhead Divide 8800 4.3 -M * 28.9 -M * Little Snake River 8928 14.5 7.8 186 42.1 40.3 104 Old Battle 9860 34.0 30.0 113 42.7 42.2 101 Sage Creek Basin 7850 -M .0 * 20.3 16.9 120 Sandstone RS 8152 .2 .0 * 23.7 22.0 108 Whiskey Park 9020 20.2 15.0 135 36.8 36.0 102 ----- ----- Basin Index (%) 139* 108 UPPER GREEN RIVER Big Sandy Opening 9080 2.7 1.0 270* 18.3 17.2 106 Blind Bull Sum 8650 22.8 19.0 120 20.4 22.4 91 East Rim Divide 7930 -M .0 * 13.8 14.6 95 Elkhart Park G.S. 9400 .2 2.4 8 15.0 17.0 88 Gros Ventre Summit 8750 .5 .8 62* -M 16.0 * Gunsight Pass 9820 7.3 8.6 85 18.7 17.8 105 Indian Creek 9425 15.7 15.2 103 24.6 25.4 97 Kendall R.S. 7740 .1 .0 * 15.9 16.4 97 Larsen Creek 9000 -M .0 * 17.6 17.2 102 Loomis Park 8240 .2 .0 * 18.4 21.1 87 New Fork Lake 8340 -M .0 * -M 14.4 * Pocket Creek 9360 -M -M * -M -M * Snider Basin 8060 -M .0 * 16.5 17.0 97 Spring Creek Divide 9000 19.7 18.6 106 26.7 28.7 93 Triple Peak 8500 9.4 6.2 152 30.6 31.5 97 ----- ----- Basin Index (%) 109* 96 LOWER GREEN RIVER Blacks Fork Jct 8869 .2 .0 * 18.1 15.4 118 Buck Pasture 9632 6.1 -M * 22.6 -M * EF Blacks Fork GS 9360 1.9 .0 * 15.5 16.6 93 Hams Fork 7840 -M .0 * 14.5 14.6 99 Henrys Fork 10182 -M -M * 18.6 -M * Hewinta 9500 -M .0 * 19.6 17.4 113 Hickerson Park 9122 -M .0 * 17.4 14.0 124 Hole-in-Rock 9168 -M .0 * 14.8 13.9 106 Indian Creek 9425 15.7 15.2 103 24.6 25.4 97 Kelley R.S. 8180 .1 .0 * 21.4 21.9 98 Spirit Lk 10235 4.4 1.4 314* 23.8 20.6 116 Steel Creek Park 10158 14.8 11.5 129 23.8 21.0 113 ----- ----- Basin Index (%) 132* 107 UPPER BEAR RIVER Bear River RS 8777 .0 .0 * 18.2 15.0 121 Bug Lake 7987 .5 .0 * 26.8 21.7 124 Burts Miller Ranch 8000 .2 .0 * 14.9 9.8 152 Chalk Creek #1 9171 10.6 7.4 143 30.7 29.8 103 Giveout 6930 -M .0 * 15.5 16.6 93 Hayden Fork 9130 .0 .0 * 28.7 25.4 113 Kelley R.S. 8180 .1 .0 * 21.4 21.9 98 Lily Lake 9133 .4 .0 * 20.2 21.0 96 Monte Cristo 8932 17.3 9.6 180 34.8 30.4 114 Salt River Summit 7640 .0 .0 * 16.7 19.6 85 Spring Creek Divide 9000 19.7 18.6 106 26.7 28.7 93 Trial Lake 9992 20.6 9.6 215 32.8 27.6 119 ----- ----- Basin Index (%) 154* 107 ----------------------------------------------------------------------------- -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.