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 13 , 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 15.7 97 18.8 17.8 106 Blind Bull Sum 8650 21.8 20.8 105 15.2 15.9 96 Cottonwood Creek 7670 20.1 19.0 106 23.2 21.5 108 East Rim Divide 7930 8.6 9.7 89 9.8 10.0 98 Grand Targhee 9260 33.5 34.8 96 24.6 27.0 91 Granite Creek 6770 13.9 15.2 91 14.6 16.6 88 Grassy Lake 7265 26.2 27.8 94 31.3 30.6 102 Gros Ventre Summit 8750 10.5 10.7 98 11.8 10.4 113 Gunsight Pass 9820 11.5 11.4 101 12.8 11.9 108 Lewis Lake Divide 7850 28.9 26.5 109 32.1 28.2 114 Loomis Park 8240 12.0 13.5 89 13.3 14.6 91 Phillips Bench 8200 23.0 22.2 104 25.5 23.3 109 Salt River Summit 7640 14.4 11.6 124 13.5 13.4 101 Snake River Station 6920 15.6 15.4 101 21.2 19.1 111 Somsen Ranch 6800 16.6 11.7 142 19.9 14.4 138 Spring Creek Divide 9000 -M 21.0 * -M 20.8 * Thumb Divide 7980 16.3 14.0 116 16.5 14.9 111 Togwotee Pass 9580 17.5 21.0 83 17.3 22.1 78 Triple Peak 8500 21.4 21.1 101 22.3 22.4 100 Two Ocean Plateau 9240 24.3 24.8 98 20.6 23.0 90 Willow Creek 8080 30.2 26.2 115 -M 28.3 * Younts Peak 8350 13.1 13.1 100 13.9 12.8 109 ----- ----- Basin Index (%) 102 102 MADISON HEADWATERS IN WYOMING Black Bear 8170 30.5 32.7 93 34.2 32.1 107 Canyon 7870 9.7 -M * 12.4 -M * Madison Plateau 7750 18.4 19.4 95 20.9 21.6 97 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 (%) 91 103 YELLOWSTONE HEADWATERS IN WYOMING Beartooth Lake 9360 13.5 19.2 70 13.1 17.6 74 Canyon 7870 9.7 -M * 12.4 -M * Evening Star 9200 19.0 22.6 84 24.2 24.8 98 Fisher Creek 9100 19.8 28.2 70 22.2 27.7 80 Monument Peak 8850 12.5 18.2 69 15.5 18.2 85 Northeast Entrance 7350 5.3 9.3 57 8.9 11.6 77 Parker Peak 9400 17.9 18.5 97 19.6 17.5 112 Sylvan Lake 8420 14.7 17.1 86 20.5 19.4 106 Thumb Divide 7980 16.3 14.0 116 16.5 14.9 111 Two Ocean Plateau 9240 24.3 24.8 98 20.6 23.0 90 White Mill 8700 14.6 20.9 70 15.5 20.2 77 Wolverine 7650 9.4 10.8 87 12.4 11.0 113 ----- ----- Basin Index (%) 82 92 WIND RIVER Burroughs Creek 8750 10.8 -M * 10.8 -M * Castle Creek 8400 6.0 6.9 87 7.1 7.5 95 Cold Springs 9630 7.6 6.3 121 10.2 7.4 138 Deer Park 9700 13.7 11.4 120 16.0 14.4 111 Hobbs Park 10100 13.3 11.4 117 13.8 10.1 137 Kirwin 9550 11.6 9.2 126 14.1 10.0 141 Little Warm 9370 9.0 8.9 101 11.8 10.3 115 South Pass 9040 11.7 12.5 94 13.6 12.6 108 St. Lawrence Alt 8620 4.8 -M * 8.2 -M * Togwotee Pass 9580 17.5 21.0 83 17.3 22.1 78 Townsend Creek 8700 7.2 7.6 95 10.7 8.6 124 ----- ----- Basin Index (%) 103 111 BIGHORN BASIN Bald Mtn. 9380 11.0 16.0 69 10.4 13.5 77 Bear Trap Meadow 8200 3.2 5.7 56 6.1 6.7 91 Bone Springs Div 9350 10.3 13.8 75 10.1 12.8 79 Grave Springs 8550 3.4 7.4 46 5.6 7.8 72 Kirwin 9550 11.6 9.2 126 14.1 10.0 141 Marquette 8760 9.6 5.8 166 12.6 7.2 175 Middle Powder 7760 4.4 8.8 50 6.3 8.4 75 Owl Creek 8975 5.1 4.6 111 6.4 5.0 128 Powder River Pass 9480 5.3 9.2 58 8.7 10.4 84 Shell Creek 9580 10.1 12.6 80 10.8 11.4 95 Timber Creek 7950 7.1 4.3 165 11.1 6.2 179 ----- ----- Basin Index (%) 83 103 SHOSHONE RIVER Blackwater 9780 19.6 19.6 100 20.6 18.6 111 Evening Star 9200 19.0 22.6 84 24.2 24.8 98 Marquette 8760 9.6 5.8 166 12.6 7.2 175 Sylvan Lake 8420 14.7 17.1 86 20.5 19.4 106 Sylvan Road 7120 8.1 10.4 78 14.6 14.6 100 Younts Peak 8350 13.1 13.1 100 13.9 12.8 109 ----- ----- Basin Index (%) 95 109 POWDER RIVER Bear Trap Meadow 8200 3.2 5.7 56 6.1 6.7 91 Cloud Peak Reservoir 9860 9.9 12.4 80 11.6 11.0 105 Grave Springs 8550 3.4 7.4 46 5.6 7.8 72 Hansen Sawmill 8360 3.9 5.8 67 6.8 7.0 97 Middle Powder 7760 4.4 8.8 50 6.3 8.4 75 Powder River Pass 9480 5.3 9.2 58 8.7 10.4 84 Soldier Park 8720 3.3 5.8 57 8.2 7.7 106 ----- ----- Basin Index (%) 61 90 TONGUE RIVER Big Goose 7990 4.4 6.7 66 8.3 8.2 101 Bone Springs Div 9350 10.3 13.8 75 10.1 12.8 79 Burgess Junction 7880 5.9 9.1 65 9.4 9.9 95 Dome Lake 8880 -M 9.6 * 8.5 10.1 84 Little Goose 8870 6.1 7.8 78 9.5 9.8 97 Sucker Creek 8880 7.7 10.4 74 11.1 11.6 96 Tie Creek 6870 1.7 4.9 35 10.1 8.9 113 ----- ----- Basin Index (%) 69 94 BELLE FOURCHE Blind Park 6890 2.7 7.0 39 5.3 9.3 57 Cole Canyon 5910 2.4 5.1 47 4.3 7.4 58 North Rapid Creek 6130 4.8 6.2 77 6.0 7.6 79 ----- ----- Basin Index (%) 54 64 CHEYENNE RIVER BASIN Blind Park 6890 2.7 7.0 39 5.3 9.3 57 North Rapid Creek 6130 4.8 6.2 77 6.0 7.6 79 ----- ----- Basin Index (%) 57 67 UPPER N. PLATTE Arapaho Ridge 10976 18.7 18.3 102 18.5 18.4 101 Blackhall Mtn 9839 29.5 24.0 123 30.3 23.6 128 Cinnabar Park 9707 15.0 18.4 82 17.5 20.8 84 Columbine 9167 24.3 20.7 117 22.9 20.8 110 Divide Peak 8730 17.9 16.9 106 21.0 18.2 115 Joe Wright 10158 16.3 18.0 91 20.0 22.2 90 Laprele Creek 8390 5.7 8.3 69 8.6 9.6 90 Med Bow 10512 31.6 -M * 28.5 -M * Never Summer 10323 15.5 17.2 90 12.0 14.5 83 North French Creek 10153 23.1 24.0 96 22.7 22.2 102 Old Battle 9860 27.6 26.0 106 28.5 28.4 100 Rawah 9069 10.0 9.6 104 13.0 13.2 98 Sage Creek Basin 7850 11.9 12.6 94 13.0 11.1 117 Sand Lake 10098 23.7 22.4 106 22.9 20.5 112 South Brush Creek 8495 9.3 10.3 90 10.1 11.5 88 Tower 10620 36.4 37.8 96 33.8 34.4 98 Webber Springs 9260 20.7 18.8 110 22.2 21.2 105 Whiskey Park 9020 28.3 23.8 119 26.4 23.8 111 Willow Creek Pass 9523 12.0 11.0 109 12.8 11.6 110 Zirkel 9338 23.8 25.0 95 25.2 26.5 95 ----- ----- Basin Index (%) 102 102 SWEETWATER Deer Park 9700 13.7 11.4 120 16.0 14.4 111 Larsen Creek 9000 7.5 10.2 74 11.1 11.1 100 South Pass 9040 11.7 12.5 94 13.6 12.6 108 ----- ----- Basin Index (%) 96 107 LOWER N. PLATTE Casper Mtn. 7920 6.2 11.0 56 11.0 11.1 99 Laprele Creek 8390 5.7 8.3 69 8.6 9.6 90 Reno Hill 8430 7.0 11.4 61 10.9 11.9 92 Windy Peak 7915 6.4 6.7 96 7.8 8.1 96 ----- ----- Basin Index (%) 68 94 LARAMIE RIVER Brooklyn Lake 10250 20.2 17.2 117 20.7 18.2 114 Cinnabar Park 9707 15.0 18.4 82 17.5 20.8 84 Crow Creek 8335 3.3 6.3 52 7.5 8.3 90 Deadman Hill 10239 14.8 14.2 104 14.0 14.4 97 Rawah 9069 10.0 9.6 104 13.0 13.2 98 Roach 9740 11.1 13.2 84 13.4 15.6 86 Windy Peak 7915 6.4 6.7 96 7.8 8.1 96 ----- ----- Basin Index (%) 94 95 S. PLATTE Crow Creek 8335 3.3 6.3 52 7.5 8.3 90 ----- ----- Basin Index (%) 52 90 LITTLE SNAKE RIVER Battle Mountain 7498 12.0 10.6 113 16.7 13.0 128 Divide Peak 8730 17.9 16.9 106 21.0 18.2 115 Elk River 8739 17.1 16.7 102 17.1 16.2 106 Elkhead Divide 8800 20.8 -M * 21.2 -M * Little Snake River 8928 26.3 23.2 113 29.3 27.6 106 Old Battle 9860 27.6 26.0 106 28.5 28.4 100 Sage Creek Basin 7850 11.9 12.6 94 13.0 11.1 117 Sandstone RS 8152 17.4 11.8 147 16.0 15.8 101 Whiskey Park 9020 28.3 23.8 119 26.4 23.8 111 ----- ----- Basin Index (%) 112 109 UPPER GREEN RIVER Big Sandy Opening 9080 10.2 11.0 93 11.1 10.6 105 Blind Bull Sum 8650 21.8 20.8 105 15.2 15.9 96 East Rim Divide 7930 8.6 9.7 89 9.8 10.0 98 Elkhart Park G.S. 9400 8.7 10.5 83 9.9 10.8 92 Gros Ventre Summit 8750 10.5 10.7 98 11.8 10.4 113 Gunsight Pass 9820 11.5 11.4 101 12.8 11.9 108 Indian Creek 9425 20.4 20.2 101 17.7 17.1 104 Kendall R.S. 7740 9.1 10.8 84 11.8 11.7 101 Larsen Creek 9000 7.5 10.2 74 11.1 11.1 100 Loomis Park 8240 12.0 13.5 89 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 9.0 11.5 78 11.2 12.4 90 Spring Creek Divide 9000 -M 21.0 * -M 20.8 * Triple Peak 8500 21.4 21.1 101 22.3 22.4 100 ----- ----- Basin Index (%) 93 99 LOWER GREEN RIVER Blacks Fork Jct 8869 10.7 7.4 145 12.8 10.2 125 Buck Pasture 9632 13.8 -M * 14.1 -M * EF Blacks Fork GS 9360 7.9 10.0 79 9.2 9.6 96 Hams Fork 7840 -M 10.2 * 10.0 9.4 106 Henrys Fork 10182 -M -M * 11.6 -M * Hewinta 9500 11.1 8.8 126 13.7 11.0 125 Hickerson Park 9122 9.4 6.6 142 11.6 8.6 135 Hole-in-Rock 9168 7.7 6.2 124 9.2 8.3 111 Indian Creek 9425 20.4 20.2 101 17.7 17.1 104 Kelley R.S. 8180 14.9 12.8 116 15.7 14.2 111 Spirit Lk 10235 12.4 9.9 125 15.9 13.8 115 Steel Creek Park 10158 13.7 12.5 110 15.9 13.0 122 ----- ----- Basin Index (%) 115 114 UPPER BEAR RIVER Bear River RS 8777 11.0 8.0 138 13.0 9.7 134 Bug Lake 7987 21.6 16.3 133 20.8 15.2 137 Burts Miller Ranch 8000 8.6 5.5 156 11.6 6.4 181 Chalk Creek #1 9171 20.7 19.7 105 21.5 19.6 110 Giveout 6930 10.9 8.2 133 11.9 10.2 117 Hayden Fork 9130 16.6 13.0 128 20.3 17.4 117 Kelley R.S. 8180 14.9 12.8 116 15.7 14.2 111 Lily Lake 9133 12.8 11.0 116 14.4 13.4 107 Monte Cristo 8932 26.2 22.9 114 25.2 21.7 116 Salt River Summit 7640 14.4 11.6 124 13.5 13.4 101 Spring Creek Divide 9000 -M 21.0 * -M 20.8 * Trial Lake 9992 23.0 19.2 120 22.4 18.8 119 ----- ----- 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.