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: FEBRUARY 16 , 2022 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Median Med ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7060 10.6 13.8 77 13.3 15.4 86 Blind Bull Sum 8650 14.7 17.2 85 11.3 13.2 86 Cottonwood Creek 7670 12.7 15.6 81 18.5 17.6 105 East Rim Divide 7930 6.5 7.9 82 8.4 8.2 102 Grand Targhee 9260 22.8 30.6 75 20.9 24.4 86 Granite Creek 6770 8.6 12.8 67 -M 14.0 * Grassy Lake 7265 16.8 23.1 73 23.7 26.0 91 Gros Ventre Summit 8750 8.0 8.6 93 8.6 8.4 102 Gunsight Pass 9820 9.2 9.3 99 10.0 10.1 99 Lewis Lake Divide 7850 18.7 21.3 88 25.5 24.6 104 Loomis Park 8240 8.9 11.2 79 11.7 12.3 95 Phillips Bench 8200 14.1 18.1 78 17.5 19.2 91 Salt River Summit 7640 8.2 9.6 85 12.5 11.3 111 Snake River Station 6920 9.3 13.4 69 14.9 16.4 91 Somsen Ranch 6800 9.1 9.4 97 14.0 12.2 115 Spring Creek Divide 9000 14.9 17.4 86 17.3 17.5 99 Thumb Divide 7980 11.1 11.0 101 13.8 12.4 111 Togwotee Pass 9580 14.7 16.6 89 15.8 18.1 87 Triple Peak 8500 14.8 16.6 89 19.0 18.4 103 Two Ocean Plateau 9240 20.0 21.1 95 18.0 18.5 97 Willow Creek 8080 16.2 20.8 78 22.9 23.2 99 Younts Peak 8350 10.3 10.8 95 7.9 10.8 73 ----- ----- Basin Index (%) 83 96 MADISON HEADWATERS IN WYOMING Black Bear 8170 23.8 27.5 87 -M 25.8 * Canyon 7870 6.8 -M * 9.5 -M * Madison Plateau 7750 13.7 15.6 88 16.4 17.2 95 West Yellowstone 6700 7.0 8.0 88 10.2 10.4 98 Whiskey Creek 6800 9.0 11.0 82 -M 13.0 * ----- ----- Basin Index (%) 86 96 YELLOWSTONE HEADWATERS IN WYOMING Beartooth Lake 9360 11.9 16.4 73 11.2 15.1 74 Canyon 7870 6.8 -M * 9.5 -M * Evening Star 9200 18.6 20.0 93 18.4 21.2 87 Fisher Creek 9100 21.1 23.8 89 22.5 23.6 95 Monument Peak 8850 12.5 14.8 84 15.4 15.8 97 Northeast Entrance 7350 4.4 7.6 58 8.3 9.9 84 Parker Peak 9400 14.0 15.8 89 13.9 14.8 94 Sylvan Lake 8420 11.2 13.8 81 15.8 17.0 93 Thumb Divide 7980 11.1 11.0 101 13.8 12.4 111 Two Ocean Plateau 9240 20.0 21.1 95 18.0 18.5 97 White Mill 8700 13.8 17.6 78 13.9 16.4 85 Wolverine 7650 8.8 9.0 98 9.0 9.2 98 ----- ----- Basin Index (%) 86 92 WIND RIVER Burroughs Creek 8750 5.8 -M * 8.8 -M * Castle Creek 8400 3.6 5.2 69 4.8 6.4 75 Cold Springs 9630 7.0 5.4 130 9.2 6.6 139 Deer Park 9700 8.2 9.2 89 11.5 11.8 97 Hobbs Park 10100 11.0 8.8 125 11.5 8.0 144 Kirwin 9550 8.5 7.4 115 9.4 8.3 113 Little Warm 9370 8.0 7.2 111 10.3 8.6 120 South Pass 9040 8.2 10.1 81 10.0 10.2 98 St. Lawrence Alt 8620 1.2 -M * 6.6 -M * Togwotee Pass 9580 14.7 16.6 89 15.8 18.1 87 Townsend Creek 8700 6.0 5.9 102 8.8 7.4 119 ----- ----- Basin Index (%) 99 107 BIGHORN BASIN Bald Mtn. 9380 11.3 13.2 86 10.4 10.9 95 Bear Trap Meadow 8200 4.1 4.5 91 6.2 5.6 111 Bone Springs Div 9350 10.9 11.0 99 9.3 10.4 89 Grave Springs 8550 4.4 5.7 77 6.2 6.4 97 Kirwin 9550 8.5 7.4 115 9.4 8.3 113 Marquette 8760 2.7 4.7 57 6.0 6.3 95 Middle Powder 7760 5.6 7.0 80 6.7 6.5 103 Owl Creek 8975 4.2 3.8 111 4.7 4.3 109 Powder River Pass 9480 6.4 7.8 82 5.8 8.8 66 Shell Creek 9580 9.4 10.4 90 9.4 9.5 99 Timber Creek 7950 2.6 3.2 81 4.5 5.2 87 ----- ----- Basin Index (%) 89 96 SHOSHONE RIVER Blackwater 9780 14.6 16.2 90 15.6 15.7 99 Evening Star 9200 18.6 20.0 93 18.4 21.2 87 Marquette 8760 2.7 4.7 57 6.0 6.3 95 Sylvan Lake 8420 11.2 13.8 81 15.8 17.0 93 Sylvan Road 7120 5.8 8.8 66 -M 13.1 * Younts Peak 8350 10.3 10.8 95 7.9 10.8 73 ----- ----- Basin Index (%) 85 90 POWDER RIVER Bear Trap Meadow 8200 4.1 4.5 91 6.2 5.6 111 Cloud Peak Reservoir 9860 9.5 9.7 98 10.3 9.1 113 Grave Springs 8550 4.4 5.7 77 6.2 6.4 97 Hansen Sawmill 8360 4.3 4.6 93 6.5 5.6 116 Middle Powder 7760 5.6 7.0 80 6.7 6.5 103 Powder River Pass 9480 6.4 7.8 82 5.8 8.8 66 Soldier Park 8720 1.5 4.4 34 6.6 6.4 103 ----- ----- Basin Index (%) 82 100 TONGUE RIVER Big Goose 7990 4.3 5.5 78 8.0 7.0 114 Bone Springs Div 9350 10.9 11.0 99 9.3 10.4 89 Burgess Junction 7880 7.5 7.4 101 9.6 8.3 116 Dome Lake 8880 7.0 7.8 90 9.2 8.4 110 Little Goose 8870 5.5 6.6 83 9.3 8.2 113 Sucker Creek 8880 8.5 8.4 101 11.4 9.4 121 Tie Creek 6870 3.0 3.8 79 8.6 7.6 113 ----- ----- Basin Index (%) 92 110 BELLE FOURCHE Blind Park 6890 3.7 5.6 66 6.4 7.3 88 Cole Canyon 5910 3.1 4.1 76 6.9 6.0 115 North Rapid Creek 6130 4.3 5.3 81 4.7 6.2 76 ----- ----- Basin Index (%) 74 92 CHEYENNE RIVER BASIN Blind Park 6890 3.7 5.6 66 6.4 7.3 88 North Rapid Creek 6130 4.3 5.3 81 4.7 6.2 76 ----- ----- Basin Index (%) 73 82 UPPER N. PLATTE Arapaho Ridge 10960 15.3 16.1 95 14.9 16.0 93 Blackhall Mtn 9820 21.1 20.4 103 22.4 20.6 109 Cinnabar Park 9574 13.7 15.0 91 16.1 17.0 95 Columbine 9160 14.5 16.6 87 18.2 17.2 106 Divide Peak 8880 10.8 13.8 78 15.4 15.1 102 Joe Wright 10120 15.6 14.2 110 21.8 18.0 121 Laprele Creek 8375 4.3 6.3 68 7.7 7.7 100 Med Bow 10500 23.1 -M * 22.2 -M * Never Summer 10280 15.5 14.0 111 11.8 11.6 102 North French Creek 10130 17.8 19.3 92 19.3 18.6 104 Old Battle 10000 20.5 21.8 94 22.4 24.5 91 Rawah 9020 7.6 8.2 93 10.3 11.6 89 Sage Creek Basin 7850 6.5 10.1 64 8.0 9.7 82 Sand Lake 10050 18.2 18.2 100 18.8 16.6 113 South Brush Creek 8440 6.5 8.2 79 9.0 9.4 96 Tower 10500 28.1 30.8 91 29.5 28.2 105 Webber Springs 9250 15.3 15.0 102 18.8 18.2 103 Whiskey Park 8950 17.9 19.4 92 21.8 20.4 107 Willow Creek Pass 9540 10.3 9.6 107 11.0 9.6 115 Zirkel 9340 18.5 20.8 89 25.0 22.6 111 ----- ----- Basin Index (%) 93 103 SWEETWATER Deer Park 9700 8.2 9.2 89 11.5 11.8 97 Larsen Creek 9000 -M 7.4 * 8.7 9.6 91 South Pass 9040 8.2 10.1 81 10.0 10.2 98 ----- ----- Basin Index (%) 85 96 LOWER N. PLATTE Casper Mtn. 7900 6.7 8.6 78 11.6 9.0 129 Laprele Creek 8375 4.3 6.3 68 7.7 7.7 100 Reno Hill 8400 8.4 8.8 95 11.9 9.4 127 Windy Peak 7900 4.3 5.5 78 7.6 7.0 109 ----- ----- Basin Index (%) 81 117 LARAMIE RIVER Brooklyn Lake 10240 15.1 14.8 102 17.3 15.0 115 Cinnabar Park 9574 13.7 15.0 91 16.1 17.0 95 Crow Creek 8330 3.5 5.8 60 6.8 7.2 94 Deadman Hill 10220 14.5 11.9 122 13.3 12.0 111 Rawah 9020 7.6 8.2 93 10.3 11.6 89 Roach 9700 11.9 11.4 104 14.5 13.2 110 Windy Peak 7900 4.3 5.5 78 7.6 7.0 109 ----- ----- Basin Index (%) 97 103 S. PLATTE Crow Creek 8330 3.5 5.8 60 6.8 7.2 94 ----- ----- Basin Index (%) 60 94 LITTLE SNAKE RIVER Battle Mountain 7440 6.3 8.8 72 11.2 11.1 101 Divide Peak 8880 10.8 13.8 78 15.4 15.1 102 Elk River 8700 12.7 13.8 92 17.0 13.8 123 Elkhead Divide 8780 12.7 -M * 16.5 -M * Little Snake River 8915 15.3 20.0 76 23.8 24.3 98 Old Battle 10000 20.5 21.8 94 22.4 24.5 91 Sage Creek Basin 7850 6.5 10.1 64 8.0 9.7 82 Sandstone RS 8150 8.3 9.6 86 11.5 13.2 87 Whiskey Park 8950 17.9 19.4 92 21.8 20.4 107 ----- ----- Basin Index (%) 84 99 UPPER GREEN RIVER Big Sandy Opening 9080 6.9 9.0 77 8.8 8.6 102 Blind Bull Sum 8650 14.7 17.2 85 11.3 13.2 86 East Rim Divide 7930 6.5 7.9 82 8.4 8.2 102 Elkhart Park G.S. 9400 5.8 8.6 67 6.8 9.0 76 Gros Ventre Summit 8750 8.0 8.6 93 8.6 8.4 102 Gunsight Pass 9820 9.2 9.3 99 10.0 10.1 99 Indian Creek 9425 14.6 16.3 90 14.8 14.4 103 Kendall R.S. 7740 7.1 8.6 83 10.7 10.0 107 Larsen Creek 9000 -M 7.4 * 8.7 9.6 91 Loomis Park 8240 8.9 11.2 79 11.7 12.3 95 New Fork Lake 8340 5.9 7.6 78 -M 7.7 * Pocket Creek 9360 -M -M * -M -M * Snider Basin 8060 7.2 9.2 78 12.3 9.7 127 Spring Creek Divide 9000 14.9 17.4 86 17.3 17.5 99 Triple Peak 8500 14.8 16.6 89 19.0 18.4 103 ----- ----- Basin Index (%) 84 99 LOWER GREEN RIVER Blacks Fork Jct 8869 6.1 5.9 103 9.0 9.1 99 Buck Pasture 9632 8.8 -M * 11.9 -M * EF Blacks Fork GS 9360 6.0 7.7 78 -M 7.6 * Hams Fork 7840 6.9 8.4 82 9.3 7.8 119 Henrys Fork 10182 -M -M * 8.5 -M * Hewinta 9500 5.8 6.4 91 10.9 9.6 114 Hickerson Park 9122 3.8 5.2 73 6.1 7.0 87 Hole-in-Rock 9168 3.7 4.9 76 6.6 6.8 97 Indian Creek 9425 14.6 16.3 90 14.8 14.4 103 Kelley R.S. 8180 8.1 10.6 76 13.3 11.8 113 Spirit Lk 10235 8.2 8.1 101 11.3 11.7 97 Steel Creek Park 10158 10.2 10.1 101 12.8 11.2 114 ----- ----- Basin Index (%) 88 105 UPPER BEAR RIVER Bear River RS 8777 6.4 6.4 100 10.2 8.3 123 Bug Lake 7987 10.7 13.4 80 14.7 13.3 111 Burts Miller Ranch 8000 4.2 5.0 84 5.5 5.5 100 Chalk Creek #1 9171 12.7 15.0 85 16.4 16.0 102 Giveout 6930 5.7 7.2 79 9.9 9.2 108 Hayden Fork 9130 10.0 10.2 98 16.3 14.4 113 Kelley R.S. 8180 8.1 10.6 76 13.3 11.8 113 Lily Lake 9133 7.2 9.0 80 11.8 11.0 107 Monte Cristo 8932 16.0 18.2 88 20.0 18.2 110 Salt River Summit 7640 8.2 9.6 85 12.5 11.3 111 Spring Creek Divide 9000 14.9 17.4 86 17.3 17.5 99 Trial Lake 9992 13.7 15.6 88 16.9 16.2 104 ----- ----- Basin Index (%) 86 108 ----------------------------------------------------------------------------- -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.