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 WEDNESDAY: MARCH 27 , 2024 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Median Med ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7060 15.3 16.2 94 19.2 19.3 99 Blind Bull Sum 8650 22.4 23.3 96 15.5 17.4 89 Cottonwood Creek 7670 20.3 20.8 98 24.5 24.0 102 East Rim Divide 7930 8.5 10.5 81 9.9 10.6 93 Grand Targhee 9260 36.5 39.2 93 25.5 28.8 89 Granite Creek 6770 14.2 15.4 92 15.1 17.2 88 Grassy Lake 7265 27.5 31.1 88 33.1 32.8 101 Gros Ventre Summit 8750 11.0 12.0 92 12.4 11.6 107 Gunsight Pass 9820 -M 12.4 * -M 13.1 * Lewis Lake Divide 7850 29.7 29.4 101 33.4 31.2 107 Loomis Park 8240 11.5 15.0 77 13.8 16.2 85 Phillips Bench 8200 23.3 25.2 92 26.2 25.8 102 Salt River Summit 7640 15.0 12.9 116 14.0 14.8 95 Snake River Station 6920 15.6 16.6 94 22.0 20.8 106 Somsen Ranch 6800 17.0 11.9 143 20.4 15.2 134 Spring Creek Divide 9000 -M 23.7 * -M 22.6 * Thumb Divide 7980 15.8 15.4 103 17.0 16.6 102 Togwotee Pass 9580 18.6 22.7 82 18.1 23.4 77 Triple Peak 8500 22.2 22.2 100 22.4 24.4 92 Two Ocean Plateau 9240 26.0 27.4 95 24.9 24.8 100 Willow Creek 8080 32.1 28.4 113 32.7 30.8 106 Younts Peak 8350 13.8 13.8 100 14.6 13.8 106 ----- ----- Basin Index (%) 97 99 MADISON HEADWATERS IN WYOMING Black Bear 8170 31.0 35.9 86 35.3 34.3 103 Canyon 7870 10.2 -M * 12.9 -M * Madison Plateau 7750 18.8 21.2 89 21.8 22.6 96 West Yellowstone 6700 8.5 10.2 83 12.9 13.2 98 Whiskey Creek 6800 12.6 14.4 88 18.7 18.3 102 ----- ----- Basin Index (%) 87 100 YELLOWSTONE HEADWATERS IN WYOMING Beartooth Lake 9360 14.3 20.8 69 13.9 19.0 73 Canyon 7870 10.2 -M * 12.9 -M * Evening Star 9200 19.8 24.1 82 25.2 26.6 95 Fisher Creek 9100 20.8 30.8 68 23.2 30.8 75 Monument Peak 8850 13.4 19.3 69 16.5 19.9 83 Northeast Entrance 7350 5.4 9.5 57 9.5 12.4 77 Parker Peak 9400 19.1 19.9 96 20.6 19.1 108 Sylvan Lake 8420 15.2 18.6 82 21.6 21.2 102 Thumb Divide 7980 15.8 15.4 103 17.0 16.6 102 Two Ocean Plateau 9240 26.0 27.4 95 24.9 24.8 100 White Mill 8700 15.6 22.8 68 16.3 21.8 75 Wolverine 7650 9.2 11.0 84 12.9 11.7 110 ----- ----- Basin Index (%) 80 90 WIND RIVER Burroughs Creek 8750 11.5 -M * 11.2 -M * Castle Creek 8400 6.4 6.8 94 7.6 8.0 95 Cold Springs 9630 8.2 6.9 119 10.9 8.2 133 Deer Park 9700 16.3 13.7 119 18.6 16.4 113 Hobbs Park 10100 15.6 13.0 120 15.8 11.4 139 Kirwin 9550 13.0 10.0 130 15.3 10.7 143 Little Warm 9370 9.5 9.9 96 12.4 11.3 110 South Pass 9040 14.3 13.8 104 16.1 14.2 113 St. Lawrence Alt 8620 5.6 -M * 9.5 -M * Togwotee Pass 9580 18.6 22.7 82 18.1 23.4 77 Townsend Creek 8700 9.5 8.2 116 13.1 9.7 135 ----- ----- Basin Index (%) 106 113 BIGHORN BASIN Bald Mtn. 9380 11.9 17.0 70 11.3 15.0 75 Bear Trap Meadow 8200 3.9 6.0 65 7.0 7.4 95 Bone Springs Div 9350 11.6 15.2 76 11.1 14.1 79 Grave Springs 8550 3.8 7.8 49 6.3 8.7 72 Kirwin 9550 13.0 10.0 130 15.3 10.7 143 Marquette 8760 11.5 6.6 174 14.4 8.1 178 Middle Powder 7760 5.2 9.8 53 6.9 9.1 76 Owl Creek 8975 5.2 5.1 102 6.7 5.4 124 Powder River Pass 9480 -M 10.4 * 9.5 11.6 82 Shell Creek 9580 10.8 14.2 76 11.5 12.9 89 Timber Creek 7950 7.7 4.1 188 11.7 6.9 170 ----- ----- Basin Index (%) 88 102 SHOSHONE RIVER Blackwater 9780 21.2 21.0 101 22.0 20.6 107 Evening Star 9200 19.8 24.1 82 25.2 26.6 95 Marquette 8760 11.5 6.6 174 14.4 8.1 178 Sylvan Lake 8420 15.2 18.6 82 21.6 21.2 102 Sylvan Road 7120 7.5 11.2 67 14.8 15.2 97 Younts Peak 8350 13.8 13.8 100 14.6 13.8 106 ----- ----- Basin Index (%) 93 107 POWDER RIVER Bear Trap Meadow 8200 3.9 6.0 65 7.0 7.4 95 Cloud Peak Reservoir 9860 10.9 13.6 80 12.5 12.0 104 Grave Springs 8550 3.8 7.8 49 6.3 8.7 72 Hansen Sawmill 8360 4.6 6.0 77 7.6 7.8 97 Middle Powder 7760 5.2 9.8 53 6.9 9.1 76 Powder River Pass 9480 -M 10.4 * 9.5 11.6 82 Soldier Park 8720 3.6 6.4 56 8.6 8.2 105 ----- ----- Basin Index (%) 65 90 TONGUE RIVER Big Goose 7990 5.4 7.4 73 9.6 9.0 107 Bone Springs Div 9350 11.6 15.2 76 11.1 14.1 79 Burgess Junction 7880 6.8 9.8 69 10.3 10.6 97 Dome Lake 8880 -M 10.6 * 9.7 11.4 85 Little Goose 8870 7.4 8.8 84 10.6 10.8 98 Sucker Creek 8880 8.7 11.1 78 12.4 12.4 100 Tie Creek 6870 2.1 4.6 46 11.0 9.5 116 ----- ----- Basin Index (%) 74 96 BELLE FOURCHE Blind Park 6890 .2 6.8 3 5.7 10.0 57 Cole Canyon 5910 2.0 5.3 38 5.0 8.0 62 North Rapid Creek 6130 5.3 6.6 80 6.6 8.3 80 ----- ----- Basin Index (%) 40 66 CHEYENNE RIVER BASIN Blind Park 6890 .2 6.8 3 5.7 10.0 57 North Rapid Creek 6130 5.3 6.6 80 6.6 8.3 80 ----- ----- Basin Index (%) 41 67 UPPER N. PLATTE Arapaho Ridge 10976 20.0 20.3 99 19.9 20.4 98 Blackhall Mtn 9839 29.8 28.6 104 32.1 27.6 116 Cinnabar Park 9707 19.0 19.4 98 21.5 22.0 98 Columbine 9167 25.8 21.5 120 24.1 22.4 108 Divide Peak 8730 19.8 18.0 110 22.7 20.4 111 Joe Wright 10158 17.8 19.2 93 22.0 24.2 91 Laprele Creek 8390 6.8 9.1 75 9.9 10.8 92 Med Bow 10512 34.9 -M * 30.2 -M * Never Summer 10323 17.2 18.9 91 13.3 16.0 83 North French Creek 10153 24.5 26.2 94 24.7 24.3 102 Old Battle 9860 30.0 28.2 106 30.3 31.1 97 Rawah 9069 11.5 10.2 113 15.0 14.2 106 Sage Creek Basin 7850 14.9 12.3 121 14.3 12.0 119 Sand Lake 10098 27.4 24.8 110 26.5 22.8 116 South Brush Creek 8495 9.6 11.4 84 11.1 12.6 88 Tower 10620 38.6 40.2 96 35.5 37.2 95 Webber Springs 9260 22.1 20.8 106 23.8 23.8 100 Whiskey Park 9020 29.6 24.9 119 28.0 25.8 109 Willow Creek Pass 9523 13.2 12.2 108 13.9 12.8 109 Zirkel 9338 24.4 27.0 90 26.7 29.2 91 ----- ----- Basin Index (%) 102 101 SWEETWATER Deer Park 9700 16.3 13.7 119 18.6 16.4 113 Larsen Creek 9000 8.1 10.6 76 12.6 12.4 102 South Pass 9040 14.3 13.8 104 16.1 14.2 113 ----- ----- Basin Index (%) 102 110 LOWER N. PLATTE Casper Mtn. 7920 8.9 12.4 72 12.8 12.6 102 Laprele Creek 8390 6.8 9.1 75 9.9 10.8 92 Reno Hill 8430 8.6 12.8 67 12.4 12.7 98 Windy Peak 7915 7.8 7.8 100 9.1 9.1 100 ----- ----- Basin Index (%) 76 98 LARAMIE RIVER Brooklyn Lake 10250 22.9 20.0 114 23.4 20.3 115 Cinnabar Park 9707 19.0 19.4 98 21.5 22.0 98 Crow Creek 8335 5.4 5.9 92 9.7 9.9 98 Deadman Hill 10239 18.1 15.4 118 17.0 16.2 105 Rawah 9069 11.5 10.2 113 15.0 14.2 106 Roach 9740 14.0 14.4 97 16.1 17.2 94 Windy Peak 7915 7.8 7.8 100 9.1 9.1 100 ----- ----- Basin Index (%) 106 103 S. PLATTE Crow Creek 8335 5.4 5.9 92 9.7 9.9 98 ----- ----- Basin Index (%) 92 98 LITTLE SNAKE RIVER Battle Mountain 7498 11.7 11.0 106 17.9 14.0 128 Divide Peak 8730 19.8 18.0 110 22.7 20.4 111 Elk River 8739 17.3 17.4 99 18.3 17.6 104 Elkhead Divide 8800 21.3 -M * 22.3 -M * Little Snake River 8928 27.5 24.9 110 30.9 30.1 103 Old Battle 9860 30.0 28.2 106 30.3 31.1 97 Sage Creek Basin 7850 14.9 12.3 121 14.3 12.0 119 Sandstone RS 8152 17.7 12.2 145 17.0 16.7 102 Whiskey Park 9020 29.6 24.9 119 28.0 25.8 109 ----- ----- Basin Index (%) 113 107 UPPER GREEN RIVER Big Sandy Opening 9080 11.3 12.6 90 12.3 12.0 102 Blind Bull Sum 8650 22.4 23.3 96 15.5 17.4 89 East Rim Divide 7930 8.5 10.5 81 9.9 10.6 93 Elkhart Park G.S. 9400 9.4 11.9 79 10.5 12.0 88 Gros Ventre Summit 8750 11.0 12.0 92 12.4 11.6 107 Gunsight Pass 9820 -M 12.4 * -M 13.1 * Indian Creek 9425 21.5 22.2 97 18.5 18.2 102 Kendall R.S. 7740 9.1 11.2 81 12.0 12.7 94 Larsen Creek 9000 8.1 10.6 76 12.6 12.4 102 Loomis Park 8240 11.5 15.0 77 13.8 16.2 85 New Fork Lake 8340 7.9 10.1 78 -M 10.0 * Pocket Creek 9360 -M -M * -M -M * Snider Basin 8060 9.0 12.3 73 11.5 13.2 87 Spring Creek Divide 9000 -M 23.7 * -M 22.6 * Triple Peak 8500 22.2 22.2 100 22.4 24.4 92 ----- ----- Basin Index (%) 87 94 LOWER GREEN RIVER Blacks Fork Jct 8869 11.2 8.0 140 13.5 11.4 118 Buck Pasture 9632 15.0 -M * 15.1 -M * EF Blacks Fork GS 9360 11.4 11.0 104 9.7 10.0 97 Hams Fork 7840 -M 10.6 * 10.7 10.4 103 Henrys Fork 10182 -M -M * 12.9 -M * Hewinta 9500 12.3 9.6 128 14.4 12.2 118 Hickerson Park 9122 10.9 7.2 151 13.4 9.3 144 Hole-in-Rock 9168 8.8 7.0 126 10.3 9.0 114 Indian Creek 9425 21.5 22.2 97 18.5 18.2 102 Kelley R.S. 8180 15.9 14.2 112 16.4 15.2 108 Spirit Lk 10235 14.4 11.8 122 17.8 15.6 114 Steel Creek Park 10158 14.8 13.6 109 17.0 14.8 115 ----- ----- Basin Index (%) 116 112 UPPER BEAR RIVER Bear River RS 8777 11.7 8.5 138 13.9 11.1 125 Bug Lake 7987 21.6 17.7 122 21.8 16.8 130 Burts Miller Ranch 8000 8.6 5.6 154 12.2 7.1 172 Chalk Creek #1 9171 22.4 21.4 105 23.4 21.2 110 Giveout 6930 10.4 7.9 132 12.2 11.2 109 Hayden Fork 9130 17.8 14.0 127 21.7 18.8 115 Kelley R.S. 8180 15.9 14.2 112 16.4 15.2 108 Lily Lake 9133 13.6 11.9 114 15.3 14.0 109 Monte Cristo 8932 27.7 25.2 110 26.3 24.1 109 Salt River Summit 7640 15.0 12.9 116 14.0 14.8 95 Spring Creek Divide 9000 -M 23.7 * -M 22.6 * Trial Lake 9992 25.6 20.8 123 24.1 20.8 116 ----- ----- Basin Index (%) 119 115 ----------------------------------------------------------------------------- -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.