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 THURSDAY: MARCH 14 , 2024 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Median Med ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7060 15.2 15.8 96 18.9 17.9 106 Blind Bull Sum 8650 21.7 21.0 103 15.2 16.1 94 Cottonwood Creek 7670 20.4 19.2 106 23.3 21.5 108 East Rim Divide 7930 8.6 9.7 89 9.8 10.0 98 Grand Targhee 9260 33.9 35.0 97 24.7 27.0 91 Granite Creek 6770 13.9 15.2 91 14.6 16.6 88 Grassy Lake 7265 26.3 27.9 94 31.3 31.0 101 Gros Ventre Summit 8750 10.6 10.7 99 11.9 10.5 113 Gunsight Pass 9820 11.4 11.5 99 12.9 12.0 108 Lewis Lake Divide 7850 29.1 26.6 109 32.0 28.2 113 Loomis Park 8240 12.0 13.7 88 13.3 14.6 91 Phillips Bench 8200 22.9 22.4 102 25.5 23.4 109 Salt River Summit 7640 14.4 11.6 124 13.5 13.4 101 Snake River Station 6920 15.8 15.4 103 21.2 19.2 110 Somsen Ranch 6800 16.7 11.7 143 19.8 14.4 138 Spring Creek Divide 9000 -M 21.1 * -M 20.8 * Thumb Divide 7980 16.3 14.1 116 16.5 15.0 110 Togwotee Pass 9580 17.6 21.0 84 17.3 22.1 78 Triple Peak 8500 21.5 21.1 102 22.3 22.6 99 Two Ocean Plateau 9240 24.4 25.0 98 20.6 23.0 90 Willow Creek 8080 30.3 26.2 116 -M 28.8 * Younts Peak 8350 13.1 13.2 99 13.9 13.0 107 ----- ----- Basin Index (%) 102 102 MADISON HEADWATERS IN WYOMING Black Bear 8170 30.6 32.7 94 34.3 32.2 107 Canyon 7870 9.7 -M * 12.4 -M * Madison Plateau 7750 18.5 19.4 95 21.1 21.6 98 West Yellowstone 6700 8.4 10.0 84 12.6 12.7 99 Whiskey Creek 6800 12.2 14.0 87 18.1 17.2 105 ----- ----- Basin Index (%) 92 103 YELLOWSTONE HEADWATERS IN WYOMING Beartooth Lake 9360 13.6 19.3 70 13.2 17.6 75 Canyon 7870 9.7 -M * 12.4 -M * Evening Star 9200 19.0 22.8 83 24.2 24.8 98 Fisher Creek 9100 20.0 28.2 71 22.4 27.8 81 Monument Peak 8850 12.8 18.2 70 15.8 18.2 87 Northeast Entrance 7350 5.4 9.3 58 9.0 11.6 78 Parker Peak 9400 18.2 18.5 98 19.7 17.6 112 Sylvan Lake 8420 14.8 17.2 86 20.6 19.4 106 Thumb Divide 7980 16.3 14.1 116 16.5 15.0 110 Two Ocean Plateau 9240 24.4 25.0 98 20.6 23.0 90 White Mill 8700 14.8 21.0 70 15.6 20.4 76 Wolverine 7650 9.4 10.8 87 12.4 11.0 113 ----- ----- Basin Index (%) 83 92 WIND RIVER Burroughs Creek 8750 10.8 -M * 10.7 -M * Castle Creek 8400 6.1 7.0 87 7.2 7.5 96 Cold Springs 9630 7.7 6.3 122 10.5 7.5 140 Deer Park 9700 14.5 11.6 125 16.8 14.6 115 Hobbs Park 10100 14.4 11.3 127 14.8 10.3 144 Kirwin 9550 12.0 9.2 130 14.4 10.0 144 Little Warm 9370 9.0 9.0 100 11.8 10.6 111 South Pass 9040 12.6 12.6 100 14.4 12.6 114 St. Lawrence Alt 8620 5.5 -M * 8.8 -M * Togwotee Pass 9580 17.6 21.0 84 17.3 22.1 78 Townsend Creek 8700 8.2 7.6 108 11.7 8.8 133 ----- ----- Basin Index (%) 107 114 BIGHORN BASIN Bald Mtn. 9380 11.2 16.0 70 10.8 13.6 79 Bear Trap Meadow 8200 3.6 5.7 63 6.2 6.8 91 Bone Springs Div 9350 10.6 13.8 77 10.3 12.9 80 Grave Springs 8550 3.7 7.4 50 6.1 7.8 78 Kirwin 9550 12.0 9.2 130 14.4 10.0 144 Marquette 8760 10.0 5.8 172 13.0 7.2 181 Middle Powder 7760 4.7 8.8 53 6.5 8.4 77 Owl Creek 8975 5.2 4.6 113 6.6 5.0 132 Powder River Pass 9480 5.6 9.4 60 9.0 10.4 87 Shell Creek 9580 10.2 12.6 81 11.0 11.6 95 Timber Creek 7950 7.1 4.4 161 11.2 6.2 181 ----- ----- Basin Index (%) 86 105 SHOSHONE RIVER Blackwater 9780 19.8 19.6 101 20.7 18.6 111 Evening Star 9200 19.0 22.8 83 24.2 24.8 98 Marquette 8760 10.0 5.8 172 13.0 7.2 181 Sylvan Lake 8420 14.8 17.2 86 20.6 19.4 106 Sylvan Road 7120 8.2 10.4 79 14.7 14.6 101 Younts Peak 8350 13.1 13.2 99 13.9 13.0 107 ----- ----- Basin Index (%) 95 110 POWDER RIVER Bear Trap Meadow 8200 3.6 5.7 63 6.2 6.8 91 Cloud Peak Reservoir 9860 10.4 12.4 84 12.2 11.0 111 Grave Springs 8550 3.7 7.4 50 6.1 7.8 78 Hansen Sawmill 8360 4.6 5.8 79 7.3 7.1 103 Middle Powder 7760 4.7 8.8 53 6.5 8.4 77 Powder River Pass 9480 5.6 9.4 60 9.0 10.4 87 Soldier Park 8720 3.6 5.8 62 8.5 7.8 109 ----- ----- Basin Index (%) 65 94 TONGUE RIVER Big Goose 7990 5.1 6.8 75 9.0 8.4 107 Bone Springs Div 9350 10.6 13.8 77 10.3 12.9 80 Burgess Junction 7880 6.2 9.1 68 9.7 10.0 97 Dome Lake 8880 -M 9.7 * 9.2 10.4 88 Little Goose 8870 7.0 8.2 85 10.3 9.8 105 Sucker Creek 8880 8.4 10.4 81 11.8 11.6 102 Tie Creek 6870 2.1 4.8 44 10.5 8.9 118 ----- ----- Basin Index (%) 74 98 BELLE FOURCHE Blind Park 6890 2.7 7.0 39 5.3 9.3 57 Cole Canyon 5910 2.6 5.0 52 4.6 7.4 62 North Rapid Creek 6130 4.8 6.4 75 6.0 7.6 79 ----- ----- Basin Index (%) 55 65 CHEYENNE RIVER BASIN Blind Park 6890 2.7 7.0 39 5.3 9.3 57 North Rapid Creek 6130 4.8 6.4 75 6.0 7.6 79 ----- ----- Basin Index (%) 56 67 UPPER N. PLATTE Arapaho Ridge 10976 19.1 18.3 104 18.8 18.5 102 Blackhall Mtn 9839 30.1 24.0 125 30.9 23.6 131 Cinnabar Park 9707 16.1 18.4 88 18.6 20.8 89 Columbine 9167 24.6 20.7 119 23.1 20.8 111 Divide Peak 8730 18.8 17.0 111 21.5 18.2 118 Joe Wright 10158 17.2 18.0 96 21.1 22.3 95 Laprele Creek 8390 6.3 8.4 75 9.3 9.8 95 Med Bow 10512 32.2 -M * 28.8 -M * Never Summer 10323 16.0 17.2 93 12.4 14.5 86 North French Creek 10153 23.6 24.0 98 23.3 22.2 105 Old Battle 9860 28.4 26.0 109 29.2 28.4 103 Rawah 9069 11.1 9.6 116 14.1 13.2 107 Sage Creek Basin 7850 13.0 12.5 104 13.9 11.2 124 Sand Lake 10098 24.6 22.4 110 23.9 20.5 117 South Brush Creek 8495 9.9 10.5 94 10.7 11.5 93 Tower 10620 37.1 37.8 98 34.3 34.4 100 Webber Springs 9260 21.3 18.8 113 22.8 21.4 107 Whiskey Park 9020 28.8 23.9 121 27.0 24.0 112 Willow Creek Pass 9523 12.4 11.0 113 13.2 11.6 114 Zirkel 9338 24.1 25.0 96 25.7 26.5 97 ----- ----- Basin Index (%) 105 105 SWEETWATER Deer Park 9700 14.5 11.6 125 16.8 14.6 115 Larsen Creek 9000 7.9 10.1 78 11.6 11.1 105 South Pass 9040 12.6 12.6 100 14.4 12.6 114 ----- ----- Basin Index (%) 102 112 LOWER N. PLATTE Casper Mtn. 7920 8.3 11.0 75 12.4 11.1 112 Laprele Creek 8390 6.3 8.4 75 9.3 9.8 95 Reno Hill 8430 8.0 11.4 70 11.9 11.9 100 Windy Peak 7915 7.2 6.7 107 8.5 8.1 105 ----- ----- Basin Index (%) 79 103 LARAMIE RIVER Brooklyn Lake 10250 21.0 17.4 121 21.6 18.2 119 Cinnabar Park 9707 16.1 18.4 88 18.6 20.8 89 Crow Creek 8335 3.9 6.3 62 8.0 8.6 93 Deadman Hill 10239 15.8 14.3 110 15.0 14.5 103 Rawah 9069 11.1 9.6 116 14.1 13.2 107 Roach 9740 12.1 13.2 92 14.5 15.6 93 Windy Peak 7915 7.2 6.7 107 8.5 8.1 105 ----- ----- Basin Index (%) 102 101 S. PLATTE Crow Creek 8335 3.9 6.3 62 8.0 8.6 93 ----- ----- Basin Index (%) 62 93 LITTLE SNAKE RIVER Battle Mountain 7498 12.4 10.7 116 17.3 13.0 133 Divide Peak 8730 18.8 17.0 111 21.5 18.2 118 Elk River 8739 17.3 16.6 104 17.3 16.2 107 Elkhead Divide 8800 21.0 -M * 21.5 -M * Little Snake River 8928 27.0 23.5 115 29.9 27.6 108 Old Battle 9860 28.4 26.0 109 29.2 28.4 103 Sage Creek Basin 7850 13.0 12.5 104 13.9 11.2 124 Sandstone RS 8152 17.9 11.6 154 16.5 15.8 104 Whiskey Park 9020 28.8 23.9 121 27.0 24.0 112 ----- ----- Basin Index (%) 115 112 UPPER GREEN RIVER Big Sandy Opening 9080 10.6 11.3 94 11.4 10.7 107 Blind Bull Sum 8650 21.7 21.0 103 15.2 16.1 94 East Rim Divide 7930 8.6 9.7 89 9.8 10.0 98 Elkhart Park G.S. 9400 8.8 10.5 84 10.0 10.8 93 Gros Ventre Summit 8750 10.6 10.7 99 11.9 10.5 113 Gunsight Pass 9820 11.4 11.5 99 12.9 12.0 108 Indian Creek 9425 20.4 20.2 101 17.7 17.2 103 Kendall R.S. 7740 9.1 10.8 84 11.8 11.8 100 Larsen Creek 9000 7.9 10.1 78 11.6 11.1 105 Loomis Park 8240 12.0 13.7 88 13.3 14.6 91 New Fork Lake 8340 8.0 9.3 86 -M 9.2 * Pocket Creek 9360 -M -M * -M -M * Snider Basin 8060 9.1 11.6 78 11.2 12.4 90 Spring Creek Divide 9000 -M 21.1 * -M 20.8 * Triple Peak 8500 21.5 21.1 102 22.3 22.6 99 ----- ----- Basin Index (%) 93 100 LOWER GREEN RIVER Blacks Fork Jct 8869 10.8 7.6 142 12.9 10.2 126 Buck Pasture 9632 13.8 -M * 14.3 -M * EF Blacks Fork GS 9360 7.9 10.1 78 9.2 9.6 96 Hams Fork 7840 -M 10.2 * 10.0 9.4 106 Henrys Fork 10182 -M -M * 11.8 -M * Hewinta 9500 11.2 8.7 129 13.7 11.0 125 Hickerson Park 9122 9.5 6.8 140 11.7 8.6 136 Hole-in-Rock 9168 7.7 6.3 122 9.2 8.4 110 Indian Creek 9425 20.4 20.2 101 17.7 17.2 103 Kelley R.S. 8180 14.9 12.8 116 15.6 14.3 109 Spirit Lk 10235 12.5 9.8 128 16.0 14.3 112 Steel Creek Park 10158 13.8 12.5 110 15.9 13.0 122 ----- ----- Basin Index (%) 115 114 UPPER BEAR RIVER Bear River RS 8777 11.2 8.1 138 13.1 9.8 134 Bug Lake 7987 21.7 16.4 132 21.0 15.3 137 Burts Miller Ranch 8000 8.6 5.3 162 11.6 6.4 181 Chalk Creek #1 9171 20.9 19.7 106 22.0 20.2 109 Giveout 6930 10.8 8.2 132 11.9 10.2 117 Hayden Fork 9130 16.7 13.0 128 20.4 17.4 117 Kelley R.S. 8180 14.9 12.8 116 15.6 14.3 109 Lily Lake 9133 12.8 11.2 114 14.4 13.4 107 Monte Cristo 8932 26.4 23.0 115 25.2 21.8 116 Salt River Summit 7640 14.4 11.6 124 13.5 13.4 101 Spring Creek Divide 9000 -M 21.1 * -M 20.8 * Trial Lake 9992 23.0 19.3 119 22.8 18.8 121 ----- ----- Basin Index (%) 122 119 ----------------------------------------------------------------------------- -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.