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: FEBRUARY 10 , 2020 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7060 12.0 11.5 104 12.5 14.9 84 Black Bear 8170 24.6 25.6 96 23.4 26.5 88 Blind Bull Sum 8650 18.8 15.1 125 11.3 13.7 82 Cottonwood Creek 7670 20.7 13.8 150 21.7 16.9 128 East Rim Divide 7930 9.1 7.0 130 7.3 8.2 89 Grand Targhee 9260 29.9 25.0 120 20.9 22.1 95 Granite Creek 6770 11.8 11.6 102 11.3 14.5 78 Grassy Lake 7265 23.4 22.2 105 23.4 25.6 91 Gros Ventre Summit 8750 8.1 8.7 93 7.9 8.7 91 Gunsight Pass 9820 9.4 8.8 107 9.4 9.5 99 Lewis Lake Divide 7850 18.2 21.8 83 21.4 24.8 86 Phillips Bench 8200 20.7 16.9 122 20.1 19.5 103 Salt River Summit 7640 11.2 8.5 132 11.6 11.4 102 Snake River Station 6920 12.3 12.2 101 14.6 16.4 89 Spring Creek Divide 9000 19.7 15.7 125 19.0 16.5 115 Thumb Divide 7980 10.5 10.0 105 10.7 12.9 83 Togwotee Pass 9580 18.8 15.7 120 17.8 16.9 105 Two Ocean Plateau 9240 20.8 18.9 110 16.2 18.5 88 Willow Creek 8080 26.1 18.2 143 26.4 23.0 115 Younts Peak 8350 12.2 10.2 120 10.2 11.1 92 ----- ----- Basin Index (%) 114 96 MADISON-GALLATIN Black Bear 8170 24.6 25.6 96 23.4 26.5 88 Canyon 7870 10.0 8.7 115 10.3 11.5 90 Madison Plateau 7750 15.4 15.1 102 12.1 18.4 66 West Yellowstone 6700 8.3 7.3 114 7.1 10.3 69 Whiskey Creek 6800 11.1 10.0 111 12.6 14.1 89 ----- ----- Basin Index (%) 104 81 YELLOWSTONE Beartooth Lake 9360 15.9 14.8 107 14.6 13.7 107 Burnt Mtn 5880 4.2 2.9 145 9.0 8.4 107 Canyon 7870 10.0 8.7 115 10.3 11.5 90 Cole Creek 7850 12.2 8.8 139 9.4 8.1 116 Evening Star 9200 19.4 16.7 116 21.1 19.2 110 Fisher Creek 9100 22.2 22.0 101 22.8 22.1 103 Northeast Entrance 7350 7.9 6.9 114 9.0 8.8 102 Parker Peak 9400 18.5 13.7 135 16.7 12.1 138 Sylvan Lake 8420 15.0 13.5 111 16.7 15.7 106 Thumb Divide 7980 10.5 10.0 105 10.7 12.9 83 Two Ocean Plateau 9240 20.8 18.9 110 16.2 18.5 88 White Mill 8700 18.2 15.6 117 14.9 16.5 90 Wolverine 7650 10.0 7.4 135 9.7 8.7 111 Younts Peak 8350 12.2 10.2 120 10.2 11.1 92 ----- ----- Basin Index (%) 116 102 WIND RIVER Burroughs Creek 8750 8.2 -M * 9.7 -M * Castle Creek 8400 3.6 -M * 4.3 -M * Cold Springs 9630 5.6 4.8 117 5.2 6.5 80 Deer Park 9700 8.8 9.5 93 7.7 13.2 58 Hobbs Park 10100 8.9 8.1 110 7.5 8.2 91 Kirwin 9550 8.2 6.1 134 6.9 7.6 91 Little Warm 9370 8.0 6.7 119 6.3 8.7 72 Owl Creek 8975 4.4 3.2 138 4.7 3.7 127 South Pass 9040 8.0 9.8 82 7.0 11.6 60 St. Lawrence Alt 8620 3.9 4.3 91 5.1 5.6 91 Togwotee Pass 9580 18.8 15.7 120 17.8 16.9 105 Townsend Creek 8700 6.5 5.7 114 6.5 7.5 87 ----- ----- Basin Index (%) 110 83 BIGHORN BASIN Bald Mtn. 9380 15.8 11.7 135 12.1 11.4 106 Bear Trap Meadow 8200 6.8 3.6 189 7.1 5.4 131 Bone Springs Div 9350 12.5 10.1 124 10.4 10.2 102 Grave Springs 8550 8.0 5.2 154 8.3 6.8 122 Kirwin 9550 8.2 6.1 134 6.9 7.6 91 Marquette 8760 5.0 -M * 6.2 -M * Middle Powder 7760 9.3 6.8 137 9.5 7.8 122 Owl Creek 8975 4.4 3.2 138 4.7 3.7 127 Powder River Pass 9480 9.4 6.9 136 9.1 8.3 110 Shell Creek 9580 10.7 9.6 111 10.5 9.4 112 Timber Creek 7950 4.6 3.1 148 5.2 4.7 111 ----- ----- Basin Index (%) 135 111 SHOSHONE RIVER Blackwater 9780 15.6 15.1 103 15.7 14.0 112 Evening Star 9200 19.4 16.7 116 21.1 19.2 110 Marquette 8760 5.0 -M * 6.2 -M * Sylvan Lake 8420 15.0 13.5 111 16.7 15.7 106 Sylvan Road 7120 9.2 8.2 112 13.0 12.5 104 Younts Peak 8350 12.2 10.2 120 10.2 11.1 92 ----- ----- Basin Index (%) 112 106 POWDER RIVER Bear Trap Meadow 8200 6.8 3.6 189 7.1 5.4 131 Cloud Peak Reservoir 9860 9.6 9.0 107 9.1 8.4 108 Grave Springs 8550 8.0 5.2 154 8.3 6.8 122 Hansen Sawmill 8360 5.2 4.2 124 6.3 5.3 119 Middle Powder 7760 9.3 6.8 137 9.5 7.8 122 Powder River Pass 9480 9.4 6.9 136 9.1 8.3 110 Soldier Park 8720 3.6 -M * 6.2 -M * ----- ----- Basin Index (%) 135 118 TONGUE RIVER Big Goose 7990 6.0 5.3 113 7.2 7.0 103 Bone Springs Div 9350 12.5 10.1 124 10.4 10.2 102 Burgess Junction 7880 7.8 7.1 110 8.9 7.9 113 Dome Lake 8880 8.6 7.3 118 6.8 8.8 77 Little Goose 8870 7.2 -M * 5.8 -M * Sucker Creek 8880 9.9 7.5 132 8.5 9.2 92 Tie Creek 6870 6.0 3.6 167 9.5 7.5 127 ----- ----- Basin Index (%) 124 101 BELLE FOURCHE Blind Park 6890 5.9 5.3 111 6.5 8.2 79 Cole Canyon 5910 2.5 3.9 64 -M 6.2 * ----- ----- Basin Index (%) 91 79 CHEYENNE RIVER BASIN Blind Park 6890 5.9 5.3 111 6.5 8.2 79 North Rapid Creek 6130 5.5 4.9 112 6.5 6.6 98 ----- ----- Basin Index (%) 112 88 UPPER N. PLATTE Arapaho Ridge 10960 16.3 14.0 116 15.9 15.2 105 Blackhall Mtn 9820 20.8 -M * 20.5 -M * Columbine 9160 22.6 16.0 141 -M 17.5 * Divide Peak 8880 15.8 13.5 117 16.8 14.6 115 Joe Wright 10120 14.5 13.5 107 19.1 17.0 112 Laprele Creek 8375 8.7 5.9 147 8.9 8.1 110 Med Bow 10500 31.9 -M * 26.2 -M * Never Summer 10280 14.5 13.2 110 10.5 -M * North French Creek 10130 24.9 17.3 144 24.1 17.9 135 Old Battle 10000 23.0 20.8 111 20.7 24.0 86 Rawah 9020 9.8 6.9 142 11.2 9.5 118 Sage Creek Basin 7850 12.3 9.0 137 10.0 10.5 95 Sand Lake 10050 21.1 17.6 120 19.6 16.0 122 South Brush Creek 8440 10.1 7.6 133 10.1 10.1 100 Tower 10500 32.9 30.3 109 29.0 27.2 107 Webber Springs 9250 15.9 15.4 103 17.2 18.1 95 Whiskey Park 8950 24.2 17.4 139 23.8 19.2 124 Willow Creek Pass 9540 9.7 8.1 120 9.0 8.8 102 Zirkel 9340 21.1 19.6 108 23.4 20.3 115 ----- ----- Basin Index (%) 121 109 SWEETWATER Deer Park 9700 8.8 9.5 93 7.7 13.2 58 Larsen Creek 9000 -M 8.0 * 5.3 -M * South Pass 9040 8.0 9.8 82 7.0 11.6 60 ----- ----- Basin Index (%) 87 59 LOWER N. PLATTE Casper Mtn. 7900 12.3 8.1 152 8.3 9.6 86 Laprele Creek 8375 8.7 5.9 147 8.9 8.1 110 Reno Hill 8400 11.8 8.2 144 11.9 9.5 125 Windy Peak 7900 6.8 4.5 151 5.7 6.7 85 ----- ----- Basin Index (%) 148 103 LARAMIE RIVER Brooklyn Lake 10240 19.6 12.7 154 19.2 13.7 140 Cinnabar Park 9574 17.8 14.1 126 19.3 17.0 114 Crow Creek 8330 6.7 5.8 116 8.4 6.7 125 Deadman Hill 10220 13.4 10.8 124 11.6 10.9 106 Rawah 9020 9.8 6.9 142 11.2 9.5 118 Roach 9700 10.8 10.7 101 10.5 12.6 83 Windy Peak 7900 6.8 4.5 151 5.7 6.7 85 ----- ----- Basin Index (%) 130 111 S. PLATTE Black Mountain 8920 8.0 -M * 9.6 -M * Crow Creek 8330 6.7 5.8 116 8.4 6.7 125 Deadman Hill 10220 13.4 10.8 124 11.6 10.9 106 ----- ----- Basin Index (%) 121 114 LITTLE SNAKE RIVER Battle Mountain 7440 11.0 7.7 143 11.1 10.3 108 Divide Peak 8880 15.8 13.5 117 16.8 14.6 115 Elk River 8700 15.9 12.5 127 13.2 13.6 97 Little Snake River 8915 20.4 17.0 120 24.6 22.1 111 Old Battle 10000 23.0 20.8 111 20.7 24.0 86 Sage Creek Basin 7850 12.3 9.0 137 10.0 10.5 95 Sandstone RS 8150 12.8 8.9 144 12.0 12.8 94 Whiskey Park 8950 24.2 17.4 139 23.8 19.2 124 ----- ----- Basin Index (%) 127 104 UPPER GREEN RIVER Big Sandy Opening 9080 6.8 8.7 78 5.8 8.8 66 Blind Bull Sum 8650 18.8 15.1 125 11.3 13.7 82 East Rim Divide 7930 9.1 7.0 130 7.3 8.2 89 Elkhart Park G.S. 9400 7.9 8.0 99 7.6 9.0 84 Gros Ventre Summit 8750 8.1 8.7 93 7.9 8.7 91 Gunsight Pass 9820 9.4 8.8 107 9.4 9.5 99 Indian Creek 9425 17.0 15.6 109 12.2 15.1 81 Kendall R.S. 7740 7.7 8.3 93 7.6 9.9 77 Loomis Park 8240 10.7 10.2 105 13.2 12.0 110 New Fork Lake 8340 8.2 7.1 115 6.0 7.5 80 Pocket Creek 9360 -M -M * 5.5 -M * Snider Basin 8060 10.5 8.4 125 10.9 9.9 110 Spring Creek Divide 9000 19.7 15.7 125 19.0 16.5 115 Triple Peak 8500 20.1 14.4 140 19.9 17.1 116 ----- ----- Basin Index (%) 113 95 LOWER GREEN RIVER Blacks Fork Jct 8869 5.7 -M * 9.0 -M * Buck Pasture 9632 13.5 -M * 13.5 -M * EF Blacks Fork GS 9360 11.2 -M * 7.4 -M * Hams Fork 7840 9.8 7.8 126 8.7 7.8 112 Hewinta 9500 8.2 6.4 128 10.9 9.2 118 Hickerson Park 9122 8.1 4.3 188 8.7 6.5 134 Hole-in-Rock 9168 8.1 4.3 188 8.1 6.1 133 Indian Creek 9425 17.0 15.6 109 12.2 15.1 81 Kelley R.S. 8180 11.7 9.6 122 12.2 12.4 98 Spirit Lk 10235 12.6 -M * 13.3 -M * Steel Creek Park 10158 11.4 9.5 120 13.5 10.6 127 ----- ----- Basin Index (%) 129 110 UPPER BEAR RIVER Bear River RS 8777 6.7 -M * 7.9 -M * Bug Lake 7987 15.1 12.2 124 13.9 13.2 105 Burts Miller Ranch 8000 5.3 -M * 5.2 -M * Chalk Creek #1 9171 14.8 14.6 101 13.8 16.7 83 Hayden Fork 9130 12.2 9.5 128 15.2 14.0 109 Kelley R.S. 8180 11.7 9.6 122 12.2 12.4 98 Lily Lake 9133 8.6 8.0 108 9.1 11.3 81 Monte Cristo 8932 21.1 17.2 123 18.9 17.4 109 Salt River Summit 7640 11.2 8.5 132 11.6 11.4 102 Spring Creek Divide 9000 19.7 15.7 125 19.0 16.5 115 ----- ----- Basin Index (%) 120 101 ----------------------------------------------------------------------------- -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. ---------------------------------------------------------------------------- -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.