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: JANUARY 20 , 2022 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Median Med ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7060 9.7 10.2 95 12.7 12.7 100 Blind Bull Sum 8650 14.4 12.7 113 11.0 10.9 101 Cottonwood Creek 7670 11.8 11.6 102 17.8 13.4 133 East Rim Divide 7930 -M 6.2 * -M 6.7 * Grand Targhee 9260 21.9 23.6 93 19.6 18.9 104 Granite Creek 6770 -M 9.2 * -M 11.5 * Grassy Lake 7265 15.5 17.0 91 22.8 20.9 109 Gros Ventre Summit 8750 7.5 7.4 101 8.0 7.2 111 Gunsight Pass 9820 8.7 7.3 119 9.4 8.0 118 Lewis Lake Divide 7850 18.0 16.2 111 24.5 20.2 121 Loomis Park 8240 8.5 8.3 102 11.2 9.6 117 Phillips Bench 8200 13.3 13.5 99 16.8 15.4 109 Salt River Summit 7640 7.9 6.8 116 12.0 8.7 138 Snake River Station 6920 8.5 9.6 89 14.0 13.8 101 Somsen Ranch 6800 8.4 7.1 118 13.3 9.9 134 Spring Creek Divide 9000 14.4 13.2 109 16.5 13.1 126 Thumb Divide 7980 10.4 8.2 127 13.1 9.6 136 Togwotee Pass 9580 13.6 12.9 105 15.0 13.8 109 Triple Peak 8500 14.8 11.8 125 18.5 14.0 132 Two Ocean Plateau 9240 19.3 17.4 111 16.9 15.4 110 Willow Creek 8080 16.3 15.2 107 22.0 18.0 122 Younts Peak 8350 9.8 8.6 114 7.3 8.6 85 ----- ----- Basin Index (%) 106 115 MADISON HEADWATERS IN WYOMING Black Bear 8170 22.0 21.3 103 -M 21.8 * Canyon 7870 6.2 -M * 9.1 -M * Madison Plateau 7750 12.6 12.6 100 15.6 14.8 105 West Yellowstone 6700 6.4 6.2 103 9.6 8.2 117 Whiskey Creek 6800 8.1 8.2 99 10.0 11.3 88 ----- ----- Basin Index (%) 102 103 YELLOWSTONE HEADWATERS IN WYOMING Beartooth Lake 9360 10.3 13.2 78 10.0 12.0 83 Canyon 7870 6.2 -M * 9.1 -M * Evening Star 9200 16.9 15.9 106 16.7 17.1 98 Fisher Creek 9100 19.2 19.4 99 20.3 18.8 108 Monument Peak 8850 10.3 12.3 84 13.1 13.5 97 Northeast Entrance 7350 3.5 5.6 62 7.3 7.6 96 Parker Peak 9400 12.0 12.1 99 12.1 12.1 100 Sylvan Lake 8420 10.0 11.3 88 14.6 13.7 107 Thumb Divide 7980 10.4 8.2 127 13.1 9.6 136 Two Ocean Plateau 9240 19.3 17.4 111 16.9 15.4 110 White Mill 8700 12.2 14.2 86 12.5 13.7 91 Wolverine 7650 7.5 7.0 107 7.8 7.8 100 ----- ----- Basin Index (%) 96 102 WIND RIVER Burroughs Creek 8750 5.6 -M * 8.2 -M * Castle Creek 8400 2.8 4.3 65 4.0 5.6 71 Cold Springs 9630 6.6 4.4 150 8.6 5.7 151 Deer Park 9700 7.5 7.4 101 10.3 9.1 113 Hobbs Park 10100 9.6 7.2 133 10.4 6.8 153 Kirwin 9550 7.5 6.4 117 8.5 7.2 118 Little Warm 9370 7.6 5.6 136 9.7 7.4 131 South Pass 9040 7.3 7.4 99 8.9 8.2 109 St. Lawrence Alt 8620 -M -M * 6.0 -M * Togwotee Pass 9580 13.6 12.9 105 15.0 13.8 109 Townsend Creek 8700 4.6 4.6 100 7.6 6.2 123 ----- ----- Basin Index (%) 111 119 BIGHORN BASIN Bald Mtn. 9380 8.5 10.2 83 8.4 9.2 91 Bear Trap Meadow 8200 3.1 3.6 86 5.4 4.8 112 Bone Springs Div 9350 8.1 9.2 88 7.7 8.6 90 Grave Springs 8550 2.9 4.1 71 5.0 5.2 96 Kirwin 9550 7.5 6.4 117 8.5 7.2 118 Marquette 8760 1.4 3.8 37 4.7 5.4 87 Middle Powder 7760 3.6 5.2 69 5.5 5.8 95 Owl Creek 8975 3.6 3.1 116 4.8 3.7 130 Powder River Pass 9480 5.5 6.2 89 5.0 7.5 67 Shell Creek 9580 7.6 8.6 88 8.1 8.0 101 Timber Creek 7950 1.4 2.6 54 2.6 4.4 59 ----- ----- Basin Index (%) 84 94 SHOSHONE RIVER Blackwater 9780 13.4 13.8 97 14.6 13.0 112 Evening Star 9200 16.9 15.9 106 16.7 17.1 98 Marquette 8760 1.4 3.8 37 4.7 5.4 87 Sylvan Lake 8420 10.0 11.3 88 14.6 13.7 107 Sylvan Road 7120 5.2 7.2 72 -M 10.8 * Younts Peak 8350 9.8 8.6 114 7.3 8.6 85 ----- ----- Basin Index (%) 94 100 POWDER RIVER Bear Trap Meadow 8200 3.1 3.6 86 5.4 4.8 112 Cloud Peak Reservoir 9860 7.5 7.8 96 8.6 7.6 113 Grave Springs 8550 2.9 4.1 71 5.0 5.2 96 Hansen Sawmill 8360 3.7 3.8 97 5.7 4.8 119 Middle Powder 7760 3.6 5.2 69 5.5 5.8 95 Powder River Pass 9480 5.5 6.2 89 5.0 7.5 67 Soldier Park 8720 .2 3.4 6 5.4 5.2 104 ----- ----- Basin Index (%) 78 99 TONGUE RIVER Big Goose 7990 2.9 4.2 69 6.3 5.7 111 Bone Springs Div 9350 8.1 9.2 88 7.7 8.6 90 Burgess Junction 7880 4.6 5.6 82 6.9 6.8 101 Dome Lake 8880 5.0 6.0 83 7.6 7.0 109 Little Goose 8870 4.0 5.0 80 7.8 6.4 122 Sucker Creek 8880 5.8 6.6 88 8.2 7.5 109 Tie Creek 6870 1.2 3.2 38 6.5 6.0 108 ----- ----- Basin Index (%) 79 106 BELLE FOURCHE Blind Park 6890 2.0 4.0 50 4.1 5.8 71 Cole Canyon 5910 .8 2.8 29 -M 5.0 * North Rapid Creek 6130 2.0 3.8 53 3.6 4.6 78 ----- ----- Basin Index (%) 45 74 CHEYENNE RIVER BASIN Blind Park 6890 2.0 4.0 50 4.1 5.8 71 North Rapid Creek 6130 2.0 3.8 53 3.6 4.6 78 ----- ----- Basin Index (%) 51 74 UPPER N. PLATTE Arapaho Ridge 10960 14.4 12.0 120 13.9 12.4 112 Blackhall Mtn 9820 19.9 15.2 131 21.5 16.2 133 Cinnabar Park 9574 12.4 11.6 107 14.9 13.8 108 Columbine 9160 14.6 12.6 116 17.4 13.4 130 Divide Peak 8880 9.7 10.4 93 14.6 12.4 118 Joe Wright 10120 14.0 10.4 135 20.5 14.4 142 Laprele Creek 8375 2.7 4.8 56 6.0 6.4 94 Med Bow 10500 22.2 -M * 20.9 -M * Never Summer 10280 14.3 10.5 136 10.7 9.7 110 North French Creek 10130 16.8 15.0 112 18.1 15.0 121 Old Battle 10000 20.0 16.2 123 21.4 19.4 110 Rawah 9020 6.9 6.2 111 9.7 9.2 105 Sage Creek Basin 7850 5.5 7.5 73 7.7 7.7 100 Sand Lake 10050 16.7 14.4 116 17.4 12.9 135 South Brush Creek 8440 5.9 6.3 94 8.4 8.0 105 Tower 10500 28.2 22.6 125 28.8 22.7 127 Webber Springs 9250 14.3 12.0 119 17.8 14.9 119 Whiskey Park 8950 18.6 14.6 127 21.2 16.8 126 Willow Creek Pass 9540 9.2 6.8 135 10.0 7.2 139 Zirkel 9340 17.5 15.3 114 -M 17.0 * ----- ----- Basin Index (%) 117 120 SWEETWATER Deer Park 9700 7.5 7.4 101 10.3 9.1 113 Larsen Creek 9000 -M 4.6 * 8.3 7.4 112 South Pass 9040 7.3 7.4 99 8.9 8.2 109 ----- ----- Basin Index (%) 100 111 LOWER N. PLATTE Casper Mtn. 7900 3.5 6.4 55 8.7 7.5 116 Laprele Creek 8375 2.7 4.8 56 6.0 6.4 94 Reno Hill 8400 5.3 7.0 76 9.1 8.0 114 Windy Peak 7900 3.2 3.9 82 6.6 5.8 114 ----- ----- Basin Index (%) 67 110 LARAMIE RIVER Brooklyn Lake 10240 14.1 11.5 123 16.3 11.9 137 Cinnabar Park 9574 12.4 11.6 107 14.9 13.8 108 Crow Creek 8330 2.4 4.6 52 5.5 6.1 90 Deadman Hill 10220 13.0 9.8 133 12.1 9.6 126 Rawah 9020 6.9 6.2 111 9.7 9.2 105 Roach 9700 10.9 8.9 122 13.4 10.6 126 Windy Peak 7900 3.2 3.9 82 6.6 5.8 114 ----- ----- Basin Index (%) 111 117 S. PLATTE Crow Creek 8330 2.4 4.6 52 5.5 6.1 90 ----- ----- Basin Index (%) 52 90 LITTLE SNAKE RIVER Battle Mountain 7440 5.8 6.4 91 10.8 8.8 123 Divide Peak 8880 9.7 10.4 93 14.6 12.4 118 Elk River 8700 12.7 9.7 131 16.4 10.8 152 Elkhead Divide 8780 12.0 -M * -M -M * Little Snake River 8915 15.0 14.0 107 22.9 19.2 119 Old Battle 10000 20.0 16.2 123 21.4 19.4 110 Sage Creek Basin 7850 5.5 7.5 73 7.7 7.7 100 Sandstone RS 8150 8.0 7.2 111 11.0 10.6 104 Whiskey Park 8950 18.6 14.6 127 21.2 16.8 126 ----- ----- Basin Index (%) 111 119 UPPER GREEN RIVER Big Sandy Opening 9080 6.3 7.2 88 8.3 7.2 115 Blind Bull Sum 8650 14.4 12.7 113 11.0 10.9 101 East Rim Divide 7930 -M 6.2 * -M 6.7 * Elkhart Park G.S. 9400 5.5 7.0 79 6.5 7.6 86 Gros Ventre Summit 8750 7.5 7.4 101 8.0 7.2 111 Gunsight Pass 9820 8.7 7.3 119 9.4 8.0 118 Indian Creek 9425 14.4 12.2 118 14.1 11.2 126 Kendall R.S. 7740 6.7 6.8 99 10.4 8.2 127 Larsen Creek 9000 -M 4.6 * 8.3 7.4 112 Loomis Park 8240 8.5 8.3 102 11.2 9.6 117 New Fork Lake 8340 5.7 6.2 92 -M 6.6 * Pocket Creek 9360 -M -M * -M -M * Snider Basin 8060 6.8 7.3 93 11.9 8.0 149 Spring Creek Divide 9000 14.4 13.2 109 16.5 13.1 126 Triple Peak 8500 14.8 11.8 125 18.5 14.0 132 ----- ----- Basin Index (%) 106 119 LOWER GREEN RIVER Blacks Fork Jct 8869 5.6 4.4 127 8.6 6.8 126 Buck Pasture 9632 8.5 -M * 12.0 -M * EF Blacks Fork GS 9360 6.4 5.2 123 -M 6.0 * Hams Fork 7840 6.5 6.0 108 8.9 6.2 144 Henrys Fork 10182 -M -M * 8.5 -M * Hewinta 9500 5.5 5.0 110 10.3 7.7 134 Hickerson Park 9122 3.2 3.6 89 5.5 5.6 98 Hole-in-Rock 9168 3.2 3.7 86 6.1 5.8 105 Indian Creek 9425 14.4 12.2 118 14.1 11.2 126 Kelley R.S. 8180 7.6 7.4 103 12.5 9.7 129 Spirit Lk 10235 7.3 6.2 118 10.0 8.7 115 Steel Creek Park 10158 9.4 7.4 127 12.1 8.8 138 ----- ----- Basin Index (%) 113 125 UPPER BEAR RIVER Bear River RS 8777 5.9 4.7 126 9.7 6.6 147 Bug Lake 7987 10.1 8.4 120 14.4 9.7 148 Burts Miller Ranch 8000 3.9 3.2 122 5.0 4.8 104 Chalk Creek #1 9171 12.3 11.0 112 16.4 12.6 130 Giveout 6930 5.1 5.1 100 9.5 7.0 136 Hayden Fork 9130 9.7 7.0 139 15.9 10.9 146 Kelley R.S. 8180 7.6 7.4 103 12.5 9.7 129 Lily Lake 9133 6.5 6.6 98 11.3 8.6 131 Monte Cristo 8932 15.7 13.1 120 20.0 13.6 147 Salt River Summit 7640 7.9 6.8 116 12.0 8.7 138 Spring Creek Divide 9000 14.4 13.2 109 16.5 13.1 126 Trial Lake 9992 14.1 10.9 129 17.6 12.2 144 ----- ----- Basin Index (%) 116 137 ----------------------------------------------------------------------------- -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.