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 MONDAY: JANUARY 17 , 2022 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Median Med ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7060 9.8 9.8 100 12.6 12.2 103 Blind Bull Sum 8650 14.5 12.6 115 11.1 10.6 105 Cottonwood Creek 7670 11.8 10.8 109 17.7 13.0 136 East Rim Divide 7930 -M 5.6 * -M 6.6 * Grand Targhee 9260 21.8 23.0 95 19.7 18.0 109 Granite Creek 6770 -M 8.6 * -M 11.2 * Grassy Lake 7265 15.4 16.2 95 22.8 19.4 118 Gros Ventre Summit 8750 7.6 7.2 106 8.1 6.9 117 Gunsight Pass 9820 8.8 7.2 122 9.5 7.7 123 Lewis Lake Divide 7850 18.1 15.9 114 24.3 19.2 127 Loomis Park 8240 8.5 8.1 105 11.3 9.4 120 Phillips Bench 8200 13.3 13.2 101 16.8 14.9 113 Salt River Summit 7640 7.9 6.4 123 12.0 8.5 141 Snake River Station 6920 8.4 9.0 93 13.9 13.5 103 Somsen Ranch 6800 8.5 6.8 125 13.3 9.4 141 Spring Creek Divide 9000 14.6 12.6 116 16.7 12.6 133 Thumb Divide 7980 10.4 7.8 133 13.1 9.5 138 Togwotee Pass 9580 13.5 12.9 105 14.9 13.4 111 Triple Peak 8500 15.0 11.6 129 18.6 13.2 141 Two Ocean Plateau 9240 19.2 16.6 116 16.9 15.3 110 Willow Creek 8080 16.4 14.6 112 22.0 17.6 125 Younts Peak 8350 10.0 8.2 122 7.5 8.2 91 ----- ----- Basin Index (%) 110 120 MADISON HEADWATERS IN WYOMING Black Bear 8170 22.0 20.8 106 -M 21.0 * Canyon 7870 6.1 -M * 8.9 -M * Madison Plateau 7750 12.7 12.0 106 15.6 13.7 114 West Yellowstone 6700 6.4 6.0 107 9.5 8.2 116 Whiskey Creek 6800 8.1 8.0 101 10.0 11.2 89 ----- ----- Basin Index (%) 105 106 YELLOWSTONE HEADWATERS IN WYOMING Beartooth Lake 9360 10.4 12.8 81 10.0 11.8 85 Canyon 7870 6.1 -M * 8.9 -M * Evening Star 9200 16.9 15.0 113 16.8 16.5 102 Fisher Creek 9100 19.0 18.4 103 20.2 18.4 110 Monument Peak 8850 10.2 11.7 87 12.9 12.8 101 Northeast Entrance 7350 3.5 5.2 67 7.3 7.4 99 Parker Peak 9400 12.0 11.8 102 12.1 11.8 103 Sylvan Lake 8420 10.0 10.8 93 14.5 13.3 109 Thumb Divide 7980 10.4 7.8 133 13.1 9.5 138 Two Ocean Plateau 9240 19.2 16.6 116 16.9 15.3 110 White Mill 8700 12.1 14.0 86 12.5 13.4 93 Wolverine 7650 7.6 6.6 115 7.9 7.5 105 ----- ----- Basin Index (%) 100 105 WIND RIVER Burroughs Creek 8750 5.8 -M * 8.7 -M * Castle Creek 8400 3.0 3.9 77 4.2 5.1 82 Cold Springs 9630 6.8 4.2 162 8.9 5.5 162 Deer Park 9700 7.5 7.0 107 10.6 8.9 119 Hobbs Park 10100 10.0 7.1 141 10.8 6.7 161 Kirwin 9550 7.7 6.2 124 8.9 7.1 125 Little Warm 9370 7.7 5.6 138 10.1 7.3 138 South Pass 9040 7.2 6.8 106 9.1 8.2 111 St. Lawrence Alt 8620 1.0 -M * 6.1 -M * Togwotee Pass 9580 13.5 12.9 105 14.9 13.4 111 Townsend Creek 8700 4.8 4.4 109 7.7 6.2 124 ----- ----- Basin Index (%) 117 125 BIGHORN BASIN Bald Mtn. 9380 8.4 10.2 82 8.4 8.9 94 Bear Trap Meadow 8200 3.2 3.4 94 5.4 4.8 112 Bone Springs Div 9350 8.3 9.0 92 7.8 8.4 93 Grave Springs 8550 3.0 4.0 75 5.1 5.0 102 Kirwin 9550 7.7 6.2 124 8.9 7.1 125 Marquette 8760 1.6 3.8 42 4.8 5.4 89 Middle Powder 7760 3.7 5.1 73 5.7 5.5 104 Owl Creek 8975 3.6 3.0 120 4.6 3.5 131 Powder River Pass 9480 5.4 6.2 87 5.2 7.4 70 Shell Creek 9580 7.6 8.4 90 8.0 7.8 103 Timber Creek 7950 1.4 2.6 54 3.7 4.4 84 ----- ----- Basin Index (%) 87 99 SHOSHONE RIVER Blackwater 9780 13.6 13.4 101 14.8 12.6 117 Evening Star 9200 16.9 15.0 113 16.8 16.5 102 Marquette 8760 1.6 3.8 42 4.8 5.4 89 Sylvan Lake 8420 10.0 10.8 93 14.5 13.3 109 Sylvan Road 7120 5.2 6.9 75 -M 10.6 * Younts Peak 8350 10.0 8.2 122 7.5 8.2 91 ----- ----- Basin Index (%) 99 104 POWDER RIVER Bear Trap Meadow 8200 3.2 3.4 94 5.4 4.8 112 Cloud Peak Reservoir 9860 7.4 7.3 101 8.6 7.4 116 Grave Springs 8550 3.0 4.0 75 5.1 5.0 102 Hansen Sawmill 8360 4.0 3.8 105 6.2 4.8 129 Middle Powder 7760 3.7 5.1 73 5.7 5.5 104 Powder River Pass 9480 5.4 6.2 87 5.2 7.4 70 Soldier Park 8720 .9 3.2 28 5.8 5.0 116 ----- ----- Basin Index (%) 84 105 TONGUE RIVER Big Goose 7990 3.2 4.0 80 6.8 5.5 124 Bone Springs Div 9350 8.3 9.0 92 7.8 8.4 93 Burgess Junction 7880 4.7 5.4 87 7.0 6.7 104 Dome Lake 8880 5.3 5.9 90 7.7 6.8 113 Little Goose 8870 4.1 4.8 85 7.8 6.4 122 Sucker Creek 8880 5.8 6.4 91 8.3 7.4 112 Tie Creek 6870 1.4 2.8 50 6.5 5.9 110 ----- ----- Basin Index (%) 86 110 BELLE FOURCHE Blind Park 6890 2.0 4.0 50 4.4 5.6 79 Cole Canyon 5910 1.3 2.8 46 5.4 5.0 108 North Rapid Creek 6130 2.3 3.7 62 3.6 4.4 82 ----- ----- Basin Index (%) 53 89 CHEYENNE RIVER BASIN Blind Park 6890 2.0 4.0 50 4.4 5.6 79 North Rapid Creek 6130 2.3 3.7 62 3.6 4.4 82 ----- ----- Basin Index (%) 56 80 UPPER N. PLATTE Arapaho Ridge 10960 14.4 11.6 124 13.9 12.4 112 Blackhall Mtn 9820 19.8 14.2 139 21.4 15.9 135 Cinnabar Park 9574 12.4 11.6 107 14.9 13.3 112 Columbine 9160 14.6 12.1 121 17.3 13.0 133 Divide Peak 8880 9.9 9.8 101 14.7 12.1 121 Joe Wright 10120 14.1 10.0 141 20.4 13.4 152 Laprele Creek 8375 2.7 4.6 59 6.0 6.2 97 Med Bow 10500 22.1 -M * 20.9 -M * Never Summer 10280 14.4 10.3 140 10.6 9.6 110 North French Creek 10130 16.8 14.7 114 18.0 14.9 121 Old Battle 10000 20.0 15.8 127 21.5 18.6 116 Rawah 9020 6.9 6.2 111 9.7 9.2 105 Sage Creek Basin 7850 5.5 6.8 81 7.6 7.7 99 Sand Lake 10050 16.8 14.0 120 17.5 12.6 139 South Brush Creek 8440 5.8 6.2 94 8.3 7.8 106 Tower 10500 28.3 21.0 135 28.8 21.6 133 Webber Springs 9250 14.4 11.2 129 17.9 14.3 125 Whiskey Park 8950 18.8 13.4 140 21.1 16.4 129 Willow Creek Pass 9540 9.2 6.8 135 9.9 7.1 139 Zirkel 9340 17.7 15.0 118 24.2 17.0 142 ----- ----- Basin Index (%) 122 125 SWEETWATER Deer Park 9700 7.5 7.0 107 10.6 8.9 119 Larsen Creek 9000 -M 4.0 * 8.6 6.7 128 South Pass 9040 7.2 6.8 106 9.1 8.2 111 ----- ----- Basin Index (%) 107 119 LOWER N. PLATTE Casper Mtn. 7900 3.5 6.2 56 8.8 7.4 119 Laprele Creek 8375 2.7 4.6 59 6.0 6.2 97 Reno Hill 8400 5.5 6.7 82 9.2 7.7 119 Windy Peak 7900 3.4 3.8 89 6.7 5.5 122 ----- ----- Basin Index (%) 71 115 LARAMIE RIVER Brooklyn Lake 10240 14.2 11.1 128 16.3 11.3 144 Cinnabar Park 9574 12.4 11.6 107 14.9 13.3 112 Crow Creek 8330 2.5 4.4 57 5.7 5.9 97 Deadman Hill 10220 13.0 9.2 141 12.0 9.3 129 Rawah 9020 6.9 6.2 111 9.7 9.2 105 Roach 9700 10.9 8.7 125 13.5 10.5 129 Windy Peak 7900 3.4 3.8 89 6.7 5.5 122 ----- ----- Basin Index (%) 115 121 S. PLATTE Crow Creek 8330 2.5 4.4 57 5.7 5.9 97 ----- ----- Basin Index (%) 57 97 LITTLE SNAKE RIVER Battle Mountain 7440 5.7 6.2 92 10.8 8.4 129 Divide Peak 8880 9.9 9.8 101 14.7 12.1 121 Elk River 8700 12.7 9.0 141 16.4 10.4 158 Elkhead Divide 8780 12.1 -M * 15.7 -M * Little Snake River 8915 15.0 13.4 112 22.8 18.8 121 Old Battle 10000 20.0 15.8 127 21.5 18.6 116 Sage Creek Basin 7850 5.5 6.8 81 7.6 7.7 99 Sandstone RS 8150 8.0 7.0 114 11.0 9.9 111 Whiskey Park 8950 18.8 13.4 140 21.1 16.4 129 ----- ----- Basin Index (%) 117 123 UPPER GREEN RIVER Big Sandy Opening 9080 6.5 7.0 93 8.5 7.1 120 Blind Bull Sum 8650 14.5 12.6 115 11.1 10.6 105 East Rim Divide 7930 -M 5.6 * -M 6.6 * Elkhart Park G.S. 9400 5.7 6.6 86 6.7 6.9 97 Gros Ventre Summit 8750 7.6 7.2 106 8.1 6.9 117 Gunsight Pass 9820 8.8 7.2 122 9.5 7.7 123 Indian Creek 9425 14.6 11.8 124 14.4 10.6 136 Kendall R.S. 7740 6.9 6.6 105 10.5 7.6 138 Larsen Creek 9000 -M 4.0 * 8.6 6.7 128 Loomis Park 8240 8.5 8.1 105 11.3 9.4 120 New Fork Lake 8340 5.7 5.7 100 -M 6.2 * Pocket Creek 9360 -M -M * -M -M * Snider Basin 8060 7.0 6.6 106 12.1 7.6 159 Spring Creek Divide 9000 14.6 12.6 116 16.7 12.6 133 Triple Peak 8500 15.0 11.6 129 18.6 13.2 141 ----- ----- Basin Index (%) 111 127 LOWER GREEN RIVER Blacks Fork Jct 8869 5.7 3.8 150 8.6 6.6 130 Buck Pasture 9632 8.7 -M * 12.1 -M * EF Blacks Fork GS 9360 6.7 4.4 152 7.6 5.7 133 Hams Fork 7840 6.6 5.6 118 9.0 6.0 150 Henrys Fork 10182 -M -M * 8.2 -M * Hewinta 9500 5.6 4.8 117 10.4 7.6 137 Hickerson Park 9122 3.1 3.4 91 5.5 5.6 98 Hole-in-Rock 9168 3.3 3.6 92 6.2 5.6 111 Indian Creek 9425 14.6 11.8 124 14.4 10.6 136 Kelley R.S. 8180 7.7 7.2 107 12.7 9.3 137 Spirit Lk 10235 7.4 5.9 125 10.3 8.7 118 Steel Creek Park 10158 9.5 7.0 136 12.1 8.7 139 ----- ----- Basin Index (%) 122 130 UPPER BEAR RIVER Bear River RS 8777 5.9 4.2 140 9.7 6.6 147 Bug Lake 7987 10.3 8.0 129 14.4 9.5 152 Burts Miller Ranch 8000 4.0 3.2 125 5.1 4.6 111 Chalk Creek #1 9171 12.5 10.9 115 16.3 12.4 131 Giveout 6930 5.1 4.5 113 9.5 6.6 144 Hayden Fork 9130 9.8 6.8 144 15.9 10.5 151 Kelley R.S. 8180 7.7 7.2 107 12.7 9.3 137 Lily Lake 9133 6.6 6.4 103 11.2 8.5 132 Monte Cristo 8932 15.8 12.6 125 19.8 13.2 150 Salt River Summit 7640 7.9 6.4 123 12.0 8.5 141 Spring Creek Divide 9000 14.6 12.6 116 16.7 12.6 133 Trial Lake 9992 14.3 10.2 140 17.6 11.6 152 ----- ----- Basin Index (%) 123 141 ----------------------------------------------------------------------------- -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.