Supercell over Laramie
WRDS/SCO may be working remotely so there could be a slight delay returning phone calls. Please email wrds@uwyo.edu if you are in need of information and we will respond as soon as possible

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 12 , 2020 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7060 12.1 12.0 101 12.6 15.1 83 Black Bear 8170 24.9 26.4 94 23.6 26.8 88 Blind Bull Sum 8650 18.9 15.4 123 11.4 13.9 82 Cottonwood Creek 7670 20.9 14.1 148 21.8 17.1 127 East Rim Divide 7930 9.3 7.1 131 7.4 8.2 90 Grand Targhee 9260 30.4 25.4 120 21.2 22.5 94 Granite Creek 6770 12.0 11.8 102 11.9 14.7 81 Grassy Lake 7265 23.7 22.9 103 23.8 25.9 92 Gros Ventre Summit 8750 8.2 8.8 93 8.1 8.8 92 Gunsight Pass 9820 9.5 9.0 106 9.6 9.7 99 Lewis Lake Divide 7850 18.3 22.4 82 21.7 25.0 87 Phillips Bench 8200 21.0 17.3 121 20.3 19.7 103 Salt River Summit 7640 11.5 8.8 131 11.8 11.5 103 Snake River Station 6920 12.5 12.5 100 14.7 16.7 88 Spring Creek Divide 9000 20.0 16.0 125 19.2 16.7 115 Thumb Divide 7980 10.5 10.2 103 10.7 13.0 82 Togwotee Pass 9580 19.0 16.0 119 18.0 17.1 105 Two Ocean Plateau 9240 21.0 19.1 110 16.2 18.7 87 Willow Creek 8080 26.5 18.5 143 26.6 23.3 114 Younts Peak 8350 12.6 10.3 122 10.5 11.3 93 ----- ----- Basin Index (%) 113 96 MADISON-GALLATIN Black Bear 8170 24.9 26.4 94 23.6 26.8 88 Canyon 7870 10.2 8.9 115 10.4 11.6 90 Madison Plateau 7750 15.6 15.4 101 11.7 18.6 63 West Yellowstone 6700 8.4 7.4 114 7.2 10.4 69 Whiskey Creek 6800 11.2 10.3 109 12.8 14.2 90 ----- ----- Basin Index (%) 103 81 YELLOWSTONE Beartooth Lake 9360 16.3 15.0 109 14.9 13.9 107 Burnt Mtn 5880 4.3 3.1 139 9.2 8.4 110 Canyon 7870 10.2 8.9 115 10.4 11.6 90 Cole Creek 7850 12.6 8.8 143 9.5 8.2 116 Evening Star 9200 19.6 17.0 115 21.4 19.5 110 Fisher Creek 9100 22.9 22.3 103 23.5 22.4 105 Northeast Entrance 7350 8.2 7.1 115 9.3 8.9 104 Parker Peak 9400 18.8 13.8 136 16.9 12.3 137 Sylvan Lake 8420 15.2 13.6 112 17.0 15.9 107 Thumb Divide 7980 10.5 10.2 103 10.7 13.0 82 Two Ocean Plateau 9240 21.0 19.1 110 16.2 18.7 87 White Mill 8700 18.8 15.9 118 15.4 16.7 92 Wolverine 7650 10.2 7.6 134 9.9 8.8 112 Younts Peak 8350 12.6 10.3 122 10.5 11.3 93 ----- ----- Basin Index (%) 117 103 WIND RIVER Burroughs Creek 8750 8.6 -M * 9.7 -M * Castle Creek 8400 3.8 -M * 4.5 -M * Cold Springs 9630 5.7 4.9 116 5.4 6.6 82 Deer Park 9700 9.0 9.5 95 8.0 13.5 59 Hobbs Park 10100 9.2 8.2 112 8.0 8.3 96 Kirwin 9550 8.4 6.1 138 7.1 7.7 92 Little Warm 9370 8.1 6.9 117 6.5 8.7 75 Owl Creek 8975 4.6 3.2 144 4.9 3.8 129 South Pass 9040 8.1 9.9 82 7.2 11.7 62 St. Lawrence Alt 8620 4.2 4.4 95 5.3 5.7 93 Togwotee Pass 9580 19.0 16.0 119 18.0 17.1 105 Townsend Creek 8700 6.8 5.7 119 6.9 7.6 91 ----- ----- Basin Index (%) 111 85 BIGHORN BASIN Bald Mtn. 9380 16.2 12.1 134 12.5 11.5 109 Bear Trap Meadow 8200 7.0 3.7 189 7.3 5.5 133 Bone Springs Div 9350 12.7 10.4 122 10.6 10.3 103 Grave Springs 8550 8.1 5.3 153 -M 7.0 * Kirwin 9550 8.4 6.1 138 7.1 7.7 92 Marquette 8760 5.2 -M * 6.4 -M * Middle Powder 7760 9.4 6.9 136 9.7 7.9 123 Owl Creek 8975 4.6 3.2 144 4.9 3.8 129 Powder River Pass 9480 9.5 7.0 136 9.3 8.4 111 Shell Creek 9580 10.9 9.8 111 10.6 9.5 112 Timber Creek 7950 4.7 3.1 152 5.2 4.8 108 ----- ----- Basin Index (%) 135 111 SHOSHONE RIVER Blackwater 9780 15.8 15.3 103 15.7 14.2 111 Evening Star 9200 19.6 17.0 115 21.4 19.5 110 Marquette 8760 5.2 -M * 6.4 -M * Sylvan Lake 8420 15.2 13.6 112 17.0 15.9 107 Sylvan Road 7120 9.2 8.4 110 12.9 12.7 102 Younts Peak 8350 12.6 10.3 122 10.5 11.3 93 ----- ----- Basin Index (%) 112 105 POWDER RIVER Bear Trap Meadow 8200 7.0 3.7 189 7.3 5.5 133 Cloud Peak Reservoir 9860 9.8 9.2 107 9.3 8.5 109 Grave Springs 8550 8.1 5.3 153 -M 7.0 * Hansen Sawmill 8360 5.3 4.2 126 6.4 5.4 119 Middle Powder 7760 9.4 6.9 136 9.7 7.9 123 Powder River Pass 9480 9.5 7.0 136 9.3 8.4 111 Soldier Park 8720 3.6 -M * 6.3 -M * ----- ----- Basin Index (%) 135 118 TONGUE RIVER Big Goose 7990 6.1 5.5 111 7.4 7.1 104 Bone Springs Div 9350 12.7 10.4 122 10.6 10.3 103 Burgess Junction 7880 8.1 7.2 112 9.2 8.0 115 Dome Lake 8880 8.7 7.5 116 7.0 8.9 79 Little Goose 8870 7.2 -M * 5.8 -M * Sucker Creek 8880 10.1 7.7 131 8.9 9.4 95 Tie Creek 6870 6.4 3.7 173 9.8 7.6 129 ----- ----- Basin Index (%) 124 103 BELLE FOURCHE Blind Park 6890 6.0 5.4 111 6.5 8.4 77 Cole Canyon 5910 2.4 4.1 59 -M 6.4 * ----- ----- Basin Index (%) 88 77 CHEYENNE RIVER BASIN Blind Park 6890 6.0 5.4 111 6.5 8.4 77 North Rapid Creek 6130 5.6 5.1 110 6.5 6.8 96 ----- ----- Basin Index (%) 110 86 UPPER N. PLATTE Arapaho Ridge 10960 16.3 14.3 114 15.9 15.4 103 Blackhall Mtn 9820 21.1 -M * 20.7 -M * Columbine 9160 22.7 16.5 138 18.6 17.8 104 Divide Peak 8880 15.9 13.7 116 16.9 14.8 114 Joe Wright 10120 14.7 13.8 107 19.3 17.4 111 Laprele Creek 8375 8.9 6.1 146 9.1 8.1 112 Med Bow 10500 32.0 -M * 26.4 -M * Never Summer 10280 14.6 13.5 108 10.6 -M * North French Creek 10130 25.1 18.0 139 24.2 18.2 133 Old Battle 10000 23.1 21.2 109 20.7 24.4 85 Rawah 9020 9.8 7.1 138 11.3 9.6 118 Sage Creek Basin 7850 12.5 9.1 137 10.1 10.6 95 Sand Lake 10050 21.3 17.8 120 19.8 16.3 121 South Brush Creek 8440 10.3 7.8 132 10.3 10.2 101 Tower 10500 32.9 31.1 106 28.9 27.7 104 Webber Springs 9250 16.0 15.8 101 17.4 18.3 95 Whiskey Park 8950 24.6 17.9 137 23.9 19.6 122 Willow Creek Pass 9540 9.8 8.2 120 9.1 9.0 101 Zirkel 9340 21.2 19.9 107 23.6 20.5 115 ----- ----- Basin Index (%) 119 108 SWEETWATER Deer Park 9700 9.0 9.5 95 8.0 13.5 59 Larsen Creek 9000 -M 8.2 * 5.5 -M * South Pass 9040 8.1 9.9 82 7.2 11.7 62 ----- ----- Basin Index (%) 88 60 LOWER N. PLATTE Casper Mtn. 7900 12.4 8.2 151 8.4 9.7 87 Laprele Creek 8375 8.9 6.1 146 9.1 8.1 112 Reno Hill 8400 12.0 8.4 143 12.1 9.7 125 Windy Peak 7900 7.1 4.6 154 5.9 6.8 87 ----- ----- Basin Index (%) 148 103 LARAMIE RIVER Brooklyn Lake 10240 19.7 13.1 150 19.2 13.9 138 Cinnabar Park 9574 18.1 14.7 123 19.4 17.3 112 Crow Creek 8330 6.7 5.9 114 8.5 6.8 125 Deadman Hill 10220 13.5 11.0 123 11.8 11.1 106 Rawah 9020 9.8 7.1 138 11.3 9.6 118 Roach 9700 11.0 10.9 101 10.7 12.8 84 Windy Peak 7900 7.1 4.6 154 5.9 6.8 87 ----- ----- Basin Index (%) 128 111 S. PLATTE Black Mountain 8920 8.3 -M * 9.8 -M * Crow Creek 8330 6.7 5.9 114 8.5 6.8 125 Deadman Hill 10220 13.5 11.0 123 11.8 11.1 106 ----- ----- Basin Index (%) 120 113 LITTLE SNAKE RIVER Battle Mountain 7440 11.2 8.0 140 11.3 10.5 108 Divide Peak 8880 15.9 13.7 116 16.9 14.8 114 Elk River 8700 16.1 12.9 125 13.3 13.9 96 Little Snake River 8915 20.7 17.4 119 24.8 22.6 110 Old Battle 10000 23.1 21.2 109 20.7 24.4 85 Sage Creek Basin 7850 12.5 9.1 137 10.1 10.6 95 Sandstone RS 8150 13.0 9.2 141 12.2 13.0 94 Whiskey Park 8950 24.6 17.9 137 23.9 19.6 122 ----- ----- Basin Index (%) 125 103 UPPER GREEN RIVER Big Sandy Opening 9080 7.0 8.7 80 5.9 8.9 66 Blind Bull Sum 8650 18.9 15.4 123 11.4 13.9 82 East Rim Divide 7930 9.3 7.1 131 7.4 8.2 90 Elkhart Park G.S. 9400 8.1 8.1 100 7.7 9.1 85 Gros Ventre Summit 8750 8.2 8.8 93 8.1 8.8 92 Gunsight Pass 9820 9.5 9.0 106 9.6 9.7 99 Indian Creek 9425 17.2 16.0 108 12.3 15.2 81 Kendall R.S. 7740 7.8 8.6 91 7.8 10.0 78 Loomis Park 8240 10.9 10.4 105 13.5 12.2 111 New Fork Lake 8340 8.3 7.3 114 -M 7.6 * Pocket Creek 9360 -M -M * 5.7 -M * Snider Basin 8060 10.7 8.5 126 11.0 10.0 110 Spring Creek Divide 9000 20.0 16.0 125 19.2 16.7 115 Triple Peak 8500 20.3 14.9 136 20.1 17.3 116 ----- ----- Basin Index (%) 113 96 LOWER GREEN RIVER Blacks Fork Jct 8869 5.9 -M * 9.1 -M * Buck Pasture 9632 13.8 -M * 13.6 -M * EF Blacks Fork GS 9360 11.4 -M * 7.6 -M * Hams Fork 7840 9.9 8.0 124 8.9 7.9 113 Hewinta 9500 8.3 6.6 126 11.1 9.4 118 Hickerson Park 9122 8.3 4.5 184 8.8 6.6 133 Hole-in-Rock 9168 8.4 4.5 187 8.4 6.2 135 Indian Creek 9425 17.2 16.0 108 12.3 15.2 81 Kelley R.S. 8180 11.9 9.8 121 12.4 12.5 99 Spirit Lk 10235 12.8 -M * 13.6 -M * Steel Creek Park 10158 -M 9.7 * 13.7 10.8 127 ----- ----- Basin Index (%) 130 110 UPPER BEAR RIVER Bear River RS 8777 6.8 -M * 8.1 -M * Bug Lake 7987 15.2 12.6 121 14.0 13.4 104 Burts Miller Ranch 8000 5.2 -M * 5.4 -M * Chalk Creek #1 9171 15.0 15.2 99 13.9 17.0 82 Hayden Fork 9130 12.3 9.9 124 15.4 14.2 108 Kelley R.S. 8180 11.9 9.8 121 12.4 12.5 99 Lily Lake 9133 8.7 8.3 105 9.1 11.6 78 Monte Cristo 8932 21.2 17.8 119 19.0 17.6 108 Salt River Summit 7640 11.5 8.8 131 11.8 11.5 103 Spring Creek Divide 9000 20.0 16.0 125 19.2 16.7 115 ----- ----- Basin Index (%) 118 100 ----------------------------------------------------------------------------- -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. ---------------------------------------------------------------------------- -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.