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 SATURDAY: MARCH 30 , 2024 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Median Med ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7060 15.9 16.3 98 19.9 19.6 102 Blind Bull Sum 8650 23.0 23.6 97 15.9 17.4 91 Cottonwood Creek 7670 20.7 21.3 97 24.8 24.3 102 East Rim Divide 7930 8.8 10.3 85 10.2 10.8 94 Grand Targhee 9260 36.9 39.8 93 25.7 29.4 87 Granite Creek 6770 14.6 15.6 94 15.5 17.2 90 Grassy Lake 7265 28.2 31.4 90 33.6 33.4 101 Gros Ventre Summit 8750 11.3 12.4 91 12.8 11.8 108 Gunsight Pass 9820 12.1 12.6 96 13.6 13.2 103 Lewis Lake Divide 7850 31.4 29.8 105 34.6 31.8 109 Loomis Park 8240 12.0 15.3 78 14.1 16.4 86 Phillips Bench 8200 24.1 25.9 93 26.9 26.1 103 Salt River Summit 7640 15.6 13.4 116 14.5 15.2 95 Snake River Station 6920 16.3 16.5 99 22.4 21.3 105 Somsen Ranch 6800 17.5 11.6 151 20.6 16.3 126 Spring Creek Divide 9000 -M 24.0 * -M 22.9 * Thumb Divide 7980 16.8 15.6 108 17.6 16.8 105 Togwotee Pass 9580 19.0 22.8 83 18.7 24.0 78 Triple Peak 8500 22.7 22.4 101 22.8 24.4 93 Two Ocean Plateau 9240 26.6 28.0 95 25.5 25.2 101 Willow Creek 8080 32.8 29.0 113 33.2 31.7 105 Younts Peak 8350 14.1 14.2 99 14.6 14.2 103 ----- ----- Basin Index (%) 98 99 MADISON HEADWATERS IN WYOMING Black Bear 8170 32.9 36.8 89 36.8 35.0 105 Canyon 7870 10.8 -M * 13.5 -M * Madison Plateau 7750 20.2 21.6 94 22.7 23.4 97 West Yellowstone 6700 9.1 10.3 88 13.5 13.6 99 Whiskey Creek 6800 13.6 15.0 91 19.6 19.1 103 ----- ----- Basin Index (%) 91 102 YELLOWSTONE HEADWATERS IN WYOMING Beartooth Lake 9360 14.6 21.0 70 14.1 19.3 73 Canyon 7870 10.8 -M * 13.5 -M * Evening Star 9200 20.4 24.2 84 25.6 26.8 96 Fisher Creek 9100 22.2 31.2 71 24.6 31.4 78 Monument Peak 8850 14.4 19.4 74 17.4 20.4 85 Northeast Entrance 7350 6.1 9.6 64 10.2 12.4 82 Parker Peak 9400 19.6 20.1 98 21.1 19.2 110 Sylvan Lake 8420 15.7 19.0 83 22.0 21.8 101 Thumb Divide 7980 16.8 15.6 108 17.6 16.8 105 Two Ocean Plateau 9240 26.6 28.0 95 25.5 25.2 101 White Mill 8700 16.8 23.1 73 17.5 21.8 80 Wolverine 7650 9.6 10.9 88 12.9 11.8 109 ----- ----- Basin Index (%) 82 92 WIND RIVER Burroughs Creek 8750 11.3 -M * 11.3 -M * Castle Creek 8400 6.4 6.7 96 7.7 8.2 94 Cold Springs 9630 8.3 7.2 115 10.9 8.8 124 Deer Park 9700 17.2 13.9 124 19.4 16.9 115 Hobbs Park 10100 15.9 13.6 117 16.2 12.6 129 Kirwin 9550 13.1 10.0 131 15.4 11.4 135 Little Warm 9370 9.6 10.0 96 12.4 11.4 109 South Pass 9040 14.9 14.2 105 16.7 14.7 114 St. Lawrence Alt 8620 6.3 -M * 9.6 -M * Togwotee Pass 9580 19.0 22.8 83 18.7 24.0 78 Townsend Creek 8700 9.7 8.8 110 13.3 10.2 130 ----- ----- Basin Index (%) 106 111 BIGHORN BASIN Bald Mtn. 9380 12.2 18.2 67 11.6 15.4 75 Bear Trap Meadow 8200 4.0 6.0 67 7.1 7.6 93 Bone Springs Div 9350 12.0 16.0 75 11.3 14.6 77 Grave Springs 8550 4.0 8.0 50 6.4 8.8 73 Kirwin 9550 13.1 10.0 131 15.4 11.4 135 Marquette 8760 11.5 6.8 169 14.3 8.4 170 Middle Powder 7760 5.2 10.2 51 6.9 9.2 75 Owl Creek 8975 5.3 5.2 102 6.7 5.8 116 Powder River Pass 9480 6.0 10.6 57 9.7 11.9 82 Shell Creek 9580 11.1 14.6 76 11.7 13.2 89 Timber Creek 7950 7.8 4.4 177 11.8 7.6 155 ----- ----- Basin Index (%) 84 99 SHOSHONE RIVER Blackwater 9780 21.5 21.7 99 22.4 20.6 109 Evening Star 9200 20.4 24.2 84 25.6 26.8 96 Marquette 8760 11.5 6.8 169 14.3 8.4 170 Sylvan Lake 8420 15.7 19.0 83 22.0 21.8 101 Sylvan Road 7120 8.6 10.9 79 14.8 15.6 95 Younts Peak 8350 14.1 14.2 99 14.6 14.2 103 ----- ----- Basin Index (%) 95 106 POWDER RIVER Bear Trap Meadow 8200 4.0 6.0 67 7.1 7.6 93 Cloud Peak Reservoir 9860 10.9 14.1 77 12.6 12.6 100 Grave Springs 8550 4.0 8.0 50 6.4 8.8 73 Hansen Sawmill 8360 4.8 6.4 75 7.8 7.9 99 Middle Powder 7760 5.2 10.2 51 6.9 9.2 75 Powder River Pass 9480 6.0 10.6 57 9.7 11.9 82 Soldier Park 8720 3.8 6.9 55 8.8 8.6 102 ----- ----- Basin Index (%) 62 89 TONGUE RIVER Big Goose 7990 5.6 8.1 69 9.6 9.3 103 Bone Springs Div 9350 12.0 16.0 75 11.3 14.6 77 Burgess Junction 7880 7.0 9.8 71 10.4 10.8 96 Dome Lake 8880 -M 11.2 * 9.9 12.0 82 Little Goose 8870 7.5 9.0 83 10.8 11.2 96 Sucker Creek 8880 8.9 11.4 78 12.5 12.8 98 Tie Creek 6870 2.2 5.0 44 11.1 9.9 112 ----- ----- Basin Index (%) 73 94 BELLE FOURCHE Blind Park 6890 .0 7.0 0 5.8 10.4 56 Cole Canyon 5910 1.8 5.1 35 4.9 8.3 59 North Rapid Creek 6130 4.7 6.6 71 6.6 8.4 79 ----- ----- Basin Index (%) 35 64 CHEYENNE RIVER BASIN Blind Park 6890 .0 7.0 0 5.8 10.4 56 North Rapid Creek 6130 4.7 6.6 71 6.6 8.4 79 ----- ----- Basin Index (%) 35 66 UPPER N. PLATTE Arapaho Ridge 10976 20.9 20.6 101 20.8 20.8 100 Blackhall Mtn 9839 31.1 29.2 107 32.8 28.1 117 Cinnabar Park 9707 19.5 19.5 100 21.9 22.5 97 Columbine 9167 26.8 21.9 122 25.2 23.1 109 Divide Peak 8730 20.3 18.6 109 23.0 20.7 111 Joe Wright 10158 18.6 19.6 95 22.7 24.8 92 Laprele Creek 8390 6.7 9.2 73 10.0 11.2 89 Med Bow 10512 36.1 -M * 31.1 -M * Never Summer 10323 18.2 19.4 94 14.2 16.2 88 North French Creek 10153 25.3 27.0 94 25.4 25.4 100 Old Battle 9860 30.8 28.9 107 30.8 31.5 98 Rawah 9069 12.7 10.5 121 15.8 14.6 108 Sage Creek Basin 7850 15.0 12.5 120 14.5 12.3 118 Sand Lake 10098 28.2 25.6 110 27.1 23.6 115 South Brush Creek 8495 10.2 11.5 89 11.5 13.0 88 Tower 10620 40.0 41.8 96 36.4 38.0 96 Webber Springs 9260 22.7 21.2 107 24.4 24.4 100 Whiskey Park 9020 30.8 25.4 121 28.6 26.2 109 Willow Creek Pass 9523 13.9 12.4 112 14.6 13.0 112 Zirkel 9338 25.4 27.3 93 27.5 29.6 93 ----- ----- Basin Index (%) 104 102 SWEETWATER Deer Park 9700 17.2 13.9 124 19.4 16.9 115 Larsen Creek 9000 8.6 10.5 82 13.3 12.7 105 South Pass 9040 14.9 14.2 105 16.7 14.7 114 ----- ----- Basin Index (%) 105 112 LOWER N. PLATTE Casper Mtn. 7920 9.0 12.6 71 12.8 12.8 100 Laprele Creek 8390 6.7 9.2 73 10.0 11.2 89 Reno Hill 8430 8.7 13.2 66 12.5 14.2 88 Windy Peak 7915 7.8 7.9 99 9.2 9.4 98 ----- ----- Basin Index (%) 75 93 LARAMIE RIVER Brooklyn Lake 10250 23.5 20.2 116 23.9 20.8 115 Cinnabar Park 9707 19.5 19.5 100 21.9 22.5 97 Crow Creek 8335 5.4 5.8 93 9.8 10.1 97 Deadman Hill 10239 18.9 15.8 120 17.7 16.8 105 Rawah 9069 12.7 10.5 121 15.8 14.6 108 Roach 9740 14.6 15.0 97 16.7 18.1 92 Windy Peak 7915 7.8 7.9 99 9.2 9.4 98 ----- ----- Basin Index (%) 108 102 S. PLATTE Crow Creek 8335 5.4 5.8 93 9.8 10.1 97 ----- ----- Basin Index (%) 93 97 LITTLE SNAKE RIVER Battle Mountain 7498 12.0 11.1 108 18.3 14.3 128 Divide Peak 8730 20.3 18.6 109 23.0 20.7 111 Elk River 8739 18.3 17.6 104 19.0 17.8 107 Elkhead Divide 8800 22.5 -M * 22.8 -M * Little Snake River 8928 28.0 25.2 111 31.5 30.6 103 Old Battle 9860 30.8 28.9 107 30.8 31.5 98 Sage Creek Basin 7850 15.0 12.5 120 14.5 12.3 118 Sandstone RS 8152 18.3 12.4 148 17.4 17.2 101 Whiskey Park 9020 30.8 25.4 121 28.6 26.2 109 ----- ----- Basin Index (%) 114 107 UPPER GREEN RIVER Big Sandy Opening 9080 12.4 12.8 97 13.3 12.1 110 Blind Bull Sum 8650 23.0 23.6 97 15.9 17.4 91 East Rim Divide 7930 8.8 10.3 85 10.2 10.8 94 Elkhart Park G.S. 9400 9.8 12.3 80 10.8 12.4 87 Gros Ventre Summit 8750 11.3 12.4 91 12.8 11.8 108 Gunsight Pass 9820 12.1 12.6 96 13.6 13.2 103 Indian Creek 9425 22.5 22.6 100 19.1 19.2 99 Kendall R.S. 7740 9.3 11.3 82 12.2 13.0 94 Larsen Creek 9000 8.6 10.5 82 13.3 12.7 105 Loomis Park 8240 12.0 15.3 78 14.1 16.4 86 New Fork Lake 8340 8.2 10.4 79 -M 10.4 * Pocket Creek 9360 -M -M * -M -M * Snider Basin 8060 9.4 12.4 76 11.9 13.5 88 Spring Creek Divide 9000 -M 24.0 * -M 22.9 * Triple Peak 8500 22.7 22.4 101 22.8 24.4 93 ----- ----- Basin Index (%) 90 96 LOWER GREEN RIVER Blacks Fork Jct 8869 11.3 8.6 131 13.7 11.8 116 Buck Pasture 9632 15.2 -M * 15.5 -M * EF Blacks Fork GS 9360 11.6 11.3 103 9.9 10.3 96 Hams Fork 7840 -M 10.7 * 10.9 10.8 101 Henrys Fork 10182 -M -M * 13.2 -M * Hewinta 9500 12.6 10.4 121 14.7 12.5 118 Hickerson Park 9122 11.2 7.4 151 13.6 9.6 142 Hole-in-Rock 9168 9.1 6.7 136 10.7 9.4 114 Indian Creek 9425 22.5 22.6 100 19.1 19.2 99 Kelley R.S. 8180 16.1 14.6 110 16.7 15.6 107 Spirit Lk 10235 14.8 11.8 125 18.2 15.9 114 Steel Creek Park 10158 15.1 13.8 109 17.3 15.3 113 ----- ----- Basin Index (%) 116 111 UPPER BEAR RIVER Bear River RS 8777 12.5 9.0 139 14.2 11.4 125 Bug Lake 7987 22.1 18.2 121 22.3 17.2 130 Burts Miller Ranch 8000 9.1 5.3 172 12.5 7.1 176 Chalk Creek #1 9171 23.7 22.0 108 24.1 22.0 110 Giveout 6930 10.8 8.1 133 12.4 11.4 109 Hayden Fork 9130 18.8 14.4 131 22.3 19.4 115 Kelley R.S. 8180 16.1 14.6 110 16.7 15.6 107 Lily Lake 9133 13.8 12.1 114 15.5 14.3 108 Monte Cristo 8932 28.6 25.8 111 27.0 24.6 110 Salt River Summit 7640 15.6 13.4 116 14.5 15.2 95 Spring Creek Divide 9000 -M 24.0 * -M 22.9 * Trial Lake 9992 27.1 21.4 127 25.6 21.2 121 ----- ----- Basin Index (%) 121 115 ----------------------------------------------------------------------------- -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.