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 7 , 2024 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Median Med ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7060 15.0 15.3 98 18.5 17.4 106 Blind Bull Sum 8650 21.1 20.2 104 14.8 15.8 94 Cottonwood Creek 7670 19.7 18.6 106 22.9 20.8 110 East Rim Divide 7930 8.5 9.5 89 9.6 9.6 100 Grand Targhee 9260 33.2 33.7 99 24.5 26.4 93 Granite Creek 6770 -M 15.1 * -M 16.2 * Grassy Lake 7265 25.4 27.1 94 31.2 29.4 106 Gros Ventre Summit 8750 10.4 10.4 100 11.7 10.2 115 Gunsight Pass 9820 11.3 10.8 105 12.9 11.5 112 Lewis Lake Divide 7850 28.3 25.2 112 31.8 27.4 116 Loomis Park 8240 11.8 13.4 88 13.1 14.4 91 Phillips Bench 8200 22.6 21.8 104 25.0 22.8 110 Salt River Summit 7640 14.1 11.2 126 13.2 13.0 102 Snake River Station 6920 15.4 15.0 103 21.1 18.8 112 Somsen Ranch 6800 16.2 11.0 147 19.6 14.1 139 Spring Creek Divide 9000 -M 20.4 * -M 19.9 * Thumb Divide 7980 16.0 13.3 120 16.2 14.4 112 Togwotee Pass 9580 17.5 20.0 88 17.1 21.4 80 Triple Peak 8500 21.1 20.2 104 21.9 21.3 103 Two Ocean Plateau 9240 23.8 23.8 100 19.8 21.8 91 Willow Creek 8080 29.2 24.8 118 26.1 27.6 95 Younts Peak 8350 13.1 12.9 102 13.8 12.3 112 ----- ----- Basin Index (%) 104 104 MADISON HEADWATERS IN WYOMING Black Bear 8170 29.2 31.9 92 33.0 31.5 105 Canyon 7870 9.5 -M * 12.2 -M * Madison Plateau 7750 17.6 18.6 95 20.4 20.8 98 West Yellowstone 6700 8.0 9.3 86 12.2 11.9 103 Whiskey Creek 6800 11.8 13.1 90 17.6 16.6 106 ----- ----- Basin Index (%) 91 103 YELLOWSTONE HEADWATERS IN WYOMING Beartooth Lake 9360 13.2 18.5 71 12.8 17.2 74 Canyon 7870 9.5 -M * 12.2 -M * Evening Star 9200 18.8 22.5 84 23.8 24.5 97 Fisher Creek 9100 19.2 27.2 71 21.4 26.6 80 Monument Peak 8850 12.3 16.9 73 15.2 17.8 85 Northeast Entrance 7350 5.1 9.3 55 8.8 11.2 79 Parker Peak 9400 17.5 18.3 96 18.7 16.9 111 Sylvan Lake 8420 14.4 16.6 87 20.3 19.0 107 Thumb Divide 7980 16.0 13.3 120 16.2 14.4 112 Two Ocean Plateau 9240 23.8 23.8 100 19.8 21.8 91 White Mill 8700 14.3 20.4 70 15.1 19.0 79 Wolverine 7650 9.3 10.6 88 12.3 10.5 117 ----- ----- Basin Index (%) 83 93 WIND RIVER Burroughs Creek 8750 10.8 -M * 10.8 -M * Castle Creek 8400 5.9 6.8 87 7.0 7.4 95 Cold Springs 9630 7.5 6.3 119 10.2 7.2 142 Deer Park 9700 13.6 10.8 126 15.8 13.5 117 Hobbs Park 10100 13.3 11.2 119 13.8 9.8 141 Kirwin 9550 11.6 8.8 132 14.1 9.4 150 Little Warm 9370 9.0 8.4 107 11.9 9.9 120 South Pass 9040 11.6 12.2 95 13.3 12.6 106 St. Lawrence Alt 8620 4.6 -M * 8.2 -M * Togwotee Pass 9580 17.5 20.0 88 17.1 21.4 80 Townsend Creek 8700 7.2 7.3 99 10.6 8.4 126 ----- ----- Basin Index (%) 106 114 BIGHORN BASIN Bald Mtn. 9380 10.8 15.7 69 10.5 13.1 80 Bear Trap Meadow 8200 3.3 5.4 61 5.9 6.6 89 Bone Springs Div 9350 10.2 13.5 76 10.0 12.6 79 Grave Springs 8550 3.3 7.0 47 5.5 7.4 74 Kirwin 9550 11.6 8.8 132 14.1 9.4 150 Marquette 8760 9.6 5.6 171 12.6 7.1 177 Middle Powder 7760 4.4 8.4 52 6.2 7.8 79 Owl Creek 8975 4.9 4.5 109 6.5 4.9 133 Powder River Pass 9480 5.3 9.0 59 8.7 10.0 87 Shell Creek 9580 10.1 12.4 81 10.7 11.0 97 Timber Creek 7950 7.2 4.1 176 11.0 5.8 190 ----- ----- Basin Index (%) 85 106 SHOSHONE RIVER Blackwater 9780 19.4 18.8 103 20.3 18.0 113 Evening Star 9200 18.8 22.5 84 23.8 24.5 97 Marquette 8760 9.6 5.6 171 12.6 7.1 177 Sylvan Lake 8420 14.4 16.6 87 20.3 19.0 107 Sylvan Road 7120 8.2 10.4 79 14.6 14.4 101 Younts Peak 8350 13.1 12.9 102 13.8 12.3 112 ----- ----- Basin Index (%) 96 111 POWDER RIVER Bear Trap Meadow 8200 3.3 5.4 61 5.9 6.6 89 Cloud Peak Reservoir 9860 9.8 12.2 80 11.5 10.6 108 Grave Springs 8550 3.3 7.0 47 5.5 7.4 74 Hansen Sawmill 8360 3.7 5.6 66 6.5 6.6 98 Middle Powder 7760 4.4 8.4 52 6.2 7.8 79 Powder River Pass 9480 5.3 9.0 59 8.7 10.0 87 Soldier Park 8720 3.2 5.7 56 8.1 7.5 108 ----- ----- Basin Index (%) 62 93 TONGUE RIVER Big Goose 7990 4.2 6.4 66 8.4 8.0 105 Bone Springs Div 9350 10.2 13.5 76 10.0 12.6 79 Burgess Junction 7880 5.8 8.9 65 9.3 9.5 98 Dome Lake 8880 -M 9.2 * 8.4 9.7 87 Little Goose 8870 6.0 7.8 77 9.2 9.6 96 Sucker Creek 8880 7.6 10.2 75 11.0 11.2 98 Tie Creek 6870 1.7 4.6 37 10.0 8.8 114 ----- ----- Basin Index (%) 69 96 BELLE FOURCHE Blind Park 6890 3.0 6.8 44 5.3 9.0 59 Cole Canyon 5910 2.2 4.8 46 4.4 7.4 59 North Rapid Creek 6130 4.7 6.0 78 6.2 7.4 84 ----- ----- Basin Index (%) 56 67 CHEYENNE RIVER BASIN Blind Park 6890 3.0 6.8 44 5.3 9.0 59 North Rapid Creek 6130 4.7 6.0 78 6.2 7.4 84 ----- ----- Basin Index (%) 60 70 UPPER N. PLATTE Arapaho Ridge 10976 -M 17.8 * -M 17.8 * Blackhall Mtn 9839 28.3 23.1 123 29.3 23.1 127 Cinnabar Park 9707 14.5 17.5 83 16.9 20.0 84 Columbine 9167 23.8 20.4 117 22.3 19.8 113 Divide Peak 8730 17.0 16.1 106 20.2 17.6 115 Joe Wright 10158 15.8 17.8 89 19.6 21.5 91 Laprele Creek 8390 5.7 7.8 73 8.4 9.2 91 Med Bow 10512 30.3 -M * 27.6 -M * Never Summer 10323 15.2 16.4 93 11.6 14.2 82 North French Creek 10153 22.1 22.7 97 21.9 22.0 100 Old Battle 9860 26.6 25.2 106 26.3 27.8 95 Rawah 9069 9.9 9.6 103 12.9 12.8 101 Sage Creek Basin 7850 11.4 11.9 96 12.7 10.8 118 Sand Lake 10098 22.1 21.8 101 21.4 19.6 109 South Brush Creek 8495 8.7 10.2 85 9.5 11.2 85 Tower 10620 35.8 37.4 96 33.3 32.9 101 Webber Springs 9260 20.0 17.9 112 21.2 20.9 101 Whiskey Park 9020 27.3 22.8 120 25.8 23.4 110 Willow Creek Pass 9523 11.8 10.6 111 12.6 11.0 115 Zirkel 9338 23.2 25.0 93 24.8 26.4 94 ----- ----- Basin Index (%) 101 102 SWEETWATER Deer Park 9700 13.6 10.8 126 15.8 13.5 117 Larsen Creek 9000 7.4 10.0 74 11.0 11.0 100 South Pass 9040 11.6 12.2 95 13.3 12.6 106 ----- ----- Basin Index (%) 99 108 LOWER N. PLATTE Casper Mtn. 7920 6.3 10.6 59 10.9 10.6 103 Laprele Creek 8390 5.7 7.8 73 8.4 9.2 91 Reno Hill 8430 7.0 11.2 62 10.9 11.3 96 Windy Peak 7915 5.8 6.4 91 7.3 7.7 95 ----- ----- Basin Index (%) 69 97 LARAMIE RIVER Brooklyn Lake 10250 19.2 17.4 110 19.8 17.6 112 Cinnabar Park 9707 14.5 17.5 83 16.9 20.0 84 Crow Creek 8335 3.0 6.0 50 7.0 8.1 86 Deadman Hill 10239 14.3 13.6 105 13.5 13.9 97 Rawah 9069 9.9 9.6 103 12.9 12.8 101 Roach 9740 10.5 12.6 83 12.7 15.2 84 Windy Peak 7915 5.8 6.4 91 7.3 7.7 95 ----- ----- Basin Index (%) 93 95 S. PLATTE Crow Creek 8335 3.0 6.0 50 7.0 8.1 86 ----- ----- Basin Index (%) 50 86 LITTLE SNAKE RIVER Battle Mountain 7498 11.0 10.6 104 15.9 12.6 126 Divide Peak 8730 17.0 16.1 106 20.2 17.6 115 Elk River 8739 16.7 16.2 103 16.7 15.9 105 Elkhead Divide 8800 20.3 -M * 20.9 -M * Little Snake River 8928 25.8 23.0 112 28.8 27.2 106 Old Battle 9860 26.6 25.2 106 26.3 27.8 95 Sage Creek Basin 7850 11.4 11.9 96 12.7 10.8 118 Sandstone RS 8152 16.5 11.2 147 15.3 15.5 99 Whiskey Park 9020 27.3 22.8 120 25.8 23.4 110 ----- ----- Basin Index (%) 111 107 UPPER GREEN RIVER Big Sandy Opening 9080 10.0 10.8 93 10.8 10.5 103 Blind Bull Sum 8650 21.1 20.2 104 14.8 15.8 94 East Rim Divide 7930 8.5 9.5 89 9.6 9.6 100 Elkhart Park G.S. 9400 8.7 10.2 85 9.8 10.6 92 Gros Ventre Summit 8750 10.4 10.4 100 11.7 10.2 115 Gunsight Pass 9820 11.3 10.8 105 12.9 11.5 112 Indian Creek 9425 20.3 19.2 106 17.5 16.4 107 Kendall R.S. 7740 9.0 10.5 86 11.6 11.4 102 Larsen Creek 9000 7.4 10.0 74 11.0 11.0 100 Loomis Park 8240 11.8 13.4 88 13.1 14.4 91 New Fork Lake 8340 7.9 9.2 86 -M 9.0 * Pocket Creek 9360 -M -M * -M -M * Snider Basin 8060 9.0 11.4 79 11.1 11.8 94 Spring Creek Divide 9000 -M 20.4 * -M 19.9 * Triple Peak 8500 21.1 20.2 104 21.9 21.3 103 ----- ----- Basin Index (%) 94 101 LOWER GREEN RIVER Blacks Fork Jct 8869 10.3 7.0 147 12.5 9.8 128 Buck Pasture 9632 13.5 -M * 14.0 -M * EF Blacks Fork GS 9360 7.6 9.8 78 8.9 9.1 98 Hams Fork 7840 2.8 9.8 29 9.9 9.1 109 Henrys Fork 10182 -M -M * 11.2 -M * Hewinta 9500 10.9 8.6 127 13.4 10.8 124 Hickerson Park 9122 8.1 6.5 125 10.4 8.5 122 Hole-in-Rock 9168 7.1 5.9 120 8.5 8.0 106 Indian Creek 9425 20.3 19.2 106 17.5 16.4 107 Kelley R.S. 8180 14.8 12.4 119 15.4 14.0 110 Spirit Lk 10235 11.4 9.9 115 15.0 13.1 115 Steel Creek Park 10158 13.3 12.4 107 15.5 13.0 119 ----- ----- Basin Index (%) 105 114 UPPER BEAR RIVER Bear River RS 8777 10.4 7.8 133 12.4 9.4 132 Bug Lake 7987 21.2 15.5 137 20.6 15.0 137 Burts Miller Ranch 8000 8.3 5.7 146 11.3 6.0 188 Chalk Creek #1 9171 19.7 18.8 105 21.0 18.7 112 Giveout 6930 10.4 8.4 124 11.7 10.0 117 Hayden Fork 9130 16.0 12.4 129 19.7 16.6 119 Kelley R.S. 8180 14.8 12.4 119 15.4 14.0 110 Lily Lake 9133 12.1 10.5 115 13.7 12.8 107 Monte Cristo 8932 25.9 22.6 115 25.1 21.0 120 Salt River Summit 7640 14.1 11.2 126 13.2 13.0 102 Spring Creek Divide 9000 -M 20.4 * -M 19.9 * Trial Lake 9992 22.4 18.4 122 22.1 18.4 120 ----- ----- Basin Index (%) 122 120 ----------------------------------------------------------------------------- -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.