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 THURSDAY: APRIL 9 , 2020 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7060 17.6 15.1 117 19.2 20.8 92 Black Bear 8170 36.1 36.9 98 33.6 38.0 88 Blind Bull Sum 8650 26.6 23.4 114 16.2 19.4 84 Cottonwood Creek 7670 24.7 20.9 118 29.6 24.5 121 East Rim Divide 7930 12.0 10.2 118 10.0 11.7 85 Grand Targhee 9260 44.1 39.0 113 29.1 30.8 94 Granite Creek 6770 18.4 14.1 130 -M 19.6 * Grassy Lake 7265 34.3 31.4 109 34.7 35.8 97 Gros Ventre Summit 8750 13.2 12.8 103 12.6 12.9 98 Gunsight Pass 9820 13.3 13.9 96 13.6 13.9 98 Lewis Lake Divide 7850 28.6 30.1 95 32.4 35.2 92 Phillips Bench 8200 -M 25.6 * -M 28.0 * Salt River Summit 7640 15.5 12.6 123 16.3 16.6 98 Snake River Station 6920 18.7 14.6 128 22.4 22.4 100 Spring Creek Divide 9000 27.1 22.6 120 25.3 23.7 107 Thumb Divide 7980 18.1 14.7 123 17.5 18.5 95 Togwotee Pass 9580 28.5 22.3 128 27.5 24.2 114 Two Ocean Plateau 9240 32.8 26.3 125 26.3 27.1 97 Willow Creek 8080 39.2 28.3 139 36.4 33.5 109 Younts Peak 8350 18.5 14.5 128 14.7 15.7 94 ----- ----- Basin Index (%) 116 98 MADISON-GALLATIN Black Bear 8170 36.1 36.9 98 33.6 38.0 88 Canyon 7870 15.5 12.4 125 15.8 16.1 98 Madison Plateau 7750 23.2 21.7 107 20.4 26.2 78 West Yellowstone 6700 -M 9.1 * -M 14.1 * Whiskey Creek 6800 16.4 14.8 111 18.3 20.0 92 ----- ----- Basin Index (%) 106 88 YELLOWSTONE Beartooth Lake 9360 24.1 21.5 112 22.7 19.6 116 Burnt Mtn 5880 8.4 4.0 210 14.4 13.1 110 Canyon 7870 15.5 12.4 125 15.8 16.1 98 Cole Creek 7850 17.6 14.9 118 13.5 13.1 103 Evening Star 9200 28.8 23.9 121 30.8 27.2 113 Fisher Creek 9100 33.8 31.3 108 34.5 31.4 110 Northeast Entrance 7350 11.0 8.8 125 13.0 12.2 107 Parker Peak 9400 -M 19.7 * -M 17.6 * Sylvan Lake 8420 23.1 19.5 118 24.8 22.2 112 Thumb Divide 7980 18.1 14.7 123 17.5 18.5 95 Two Ocean Plateau 9240 32.8 26.3 125 26.3 27.1 97 White Mill 8700 27.5 22.5 122 23.0 23.6 97 Wolverine 7650 12.9 9.6 134 13.5 12.2 111 Younts Peak 8350 18.5 14.5 128 14.7 15.7 94 ----- ----- Basin Index (%) 122 105 WIND RIVER Burroughs Creek 8750 13.7 -M * 14.1 -M * Castle Creek 8400 5.9 -M * 6.8 -M * Cold Springs 9630 7.9 6.5 122 7.3 10.0 73 Deer Park 9700 14.6 16.0 91 13.6 20.0 68 Hobbs Park 10100 14.4 14.3 101 12.3 13.6 90 Kirwin 9550 12.3 9.6 128 11.1 11.6 96 Little Warm 9370 12.9 10.3 125 10.5 12.9 81 Owl Creek 8975 6.4 5.8 110 7.2 6.1 118 South Pass 9040 12.6 15.5 81 11.4 17.5 65 St. Lawrence Alt 8620 5.6 6.9 81 7.5 9.0 83 Togwotee Pass 9580 28.5 22.3 128 27.5 24.2 114 Townsend Creek 8700 9.7 9.8 99 9.9 12.2 81 ----- ----- Basin Index (%) 107 86 BIGHORN BASIN Bald Mtn. 9380 20.7 19.2 108 16.1 17.0 95 Bear Trap Meadow 8200 8.5 4.8 177 9.5 8.7 109 Bone Springs Div 9350 17.7 17.0 104 14.7 15.6 94 Grave Springs 8550 9.6 9.5 101 10.2 10.7 95 Kirwin 9550 12.3 9.6 128 11.1 11.6 96 Marquette 8760 7.4 -M * 9.1 -M * Middle Powder 7760 12.6 12.2 103 11.8 11.8 100 Owl Creek 8975 6.4 5.8 110 7.2 6.1 118 Powder River Pass 9480 12.3 10.3 119 12.5 12.7 98 Shell Creek 9580 14.9 15.3 97 14.0 13.8 101 Timber Creek 7950 6.1 5.1 120 7.1 7.4 96 ----- ----- Basin Index (%) 111 99 SHOSHONE RIVER Blackwater 9780 23.9 22.8 105 24.2 20.5 118 Evening Star 9200 28.8 23.9 121 30.8 27.2 113 Marquette 8760 7.4 -M * 9.1 -M * Sylvan Lake 8420 23.1 19.5 118 24.8 22.2 112 Sylvan Road 7120 12.7 10.6 120 -M 16.6 * Younts Peak 8350 18.5 14.5 128 14.7 15.7 94 ----- ----- Basin Index (%) 117 110 POWDER RIVER Bear Trap Meadow 8200 8.5 4.8 177 9.5 8.7 109 Cloud Peak Reservoir 9860 14.5 15.0 97 13.7 13.5 101 Grave Springs 8550 9.6 9.5 101 10.2 10.7 95 Hansen Sawmill 8360 7.5 6.1 123 8.8 8.7 101 Middle Powder 7760 12.6 12.2 103 11.8 11.8 100 Powder River Pass 9480 12.3 10.3 119 12.5 12.7 98 Soldier Park 8720 7.1 -M * 8.8 -M * ----- ----- Basin Index (%) 112 101 TONGUE RIVER Big Goose 7990 8.8 9.8 90 9.6 11.7 82 Bone Springs Div 9350 17.7 17.0 104 14.7 15.6 94 Burgess Junction 7880 11.4 12.0 95 12.5 12.4 101 Dome Lake 8880 13.7 11.8 116 9.7 13.8 70 Little Goose 8870 10.8 -M * 8.3 -M * Sucker Creek 8880 12.8 12.4 103 12.9 14.5 89 Tie Creek 6870 7.7 5.5 140 12.7 11.9 107 ----- ----- Basin Index (%) 105 90 BELLE FOURCHE Blind Park 6890 4.5 6.8 66 8.3 12.0 69 Cole Canyon 5910 -M 4.6 * -M 9.6 * ----- ----- Basin Index (%) 66 69 CHEYENNE RIVER BASIN Blind Park 6890 4.5 6.8 66 8.3 12.0 69 North Rapid Creek 6130 6.0 6.4 94 8.4 10.0 84 ----- ----- Basin Index (%) 80 76 UPPER N. PLATTE Arapaho Ridge 10960 23.8 21.1 113 22.1 22.8 97 Blackhall Mtn 9820 30.6 -M * 29.1 -M * Columbine 9160 29.1 23.3 125 28.3 25.6 111 Divide Peak 8880 21.3 20.1 106 21.9 21.5 102 Joe Wright 10120 -M 21.5 * -M 25.9 * Laprele Creek 8375 12.2 9.4 130 13.1 12.6 104 Med Bow 10500 43.6 -M * 35.3 -M * Never Summer 10280 20.3 20.4 100 15.2 -M * North French Creek 10130 33.7 30.0 112 32.0 26.9 119 Old Battle 10000 32.2 31.6 102 30.3 35.2 86 Rawah 9020 10.7 10.6 101 14.4 14.6 99 Sage Creek Basin 7850 13.6 11.4 119 12.5 14.7 85 Sand Lake 10050 29.9 29.3 102 27.2 25.0 109 South Brush Creek 8440 11.2 11.8 95 13.2 15.3 86 Tower 10500 46.1 46.3 100 41.8 40.0 104 Webber Springs 9250 22.9 23.2 99 25.3 26.8 94 Whiskey Park 8950 32.6 27.6 118 31.5 28.1 112 Willow Creek Pass 9540 13.8 12.3 112 12.9 13.5 96 Zirkel 9340 27.5 26.1 105 -M 28.6 * ----- ----- Basin Index (%) 107 101 SWEETWATER Deer Park 9700 14.6 16.0 91 13.6 20.0 68 Larsen Creek 9000 6.8 11.4 60 9.1 -M * South Pass 9040 12.6 15.5 81 11.4 17.5 65 ----- ----- Basin Index (%) 79 67 LOWER N. PLATTE Casper Mtn. 7900 16.0 14.4 111 11.9 15.2 78 Laprele Creek 8375 12.2 9.4 130 13.1 12.6 104 Reno Hill 8400 16.9 14.1 120 17.5 15.7 111 Windy Peak 7900 9.6 7.6 126 9.2 10.6 87 ----- ----- Basin Index (%) 120 96 LARAMIE RIVER Brooklyn Lake 10240 27.7 22.1 125 26.4 21.2 125 Cinnabar Park 9574 22.6 21.4 106 25.3 24.3 104 Crow Creek 8330 7.0 6.8 103 10.7 11.0 97 Deadman Hill 10220 18.8 16.3 115 16.5 17.4 95 Rawah 9020 10.7 10.6 101 14.4 14.6 99 Roach 9700 14.9 16.6 90 16.1 19.3 83 Windy Peak 7900 9.6 7.6 126 9.2 10.6 87 ----- ----- Basin Index (%) 110 100 S. PLATTE Black Mountain 8920 9.3 -M * 13.1 -M * Crow Creek 8330 7.0 6.8 103 10.7 11.0 97 Deadman Hill 10220 18.8 16.3 115 16.5 17.4 95 ----- ----- Basin Index (%) 112 96 LITTLE SNAKE RIVER Battle Mountain 7440 9.9 9.0 110 14.5 15.1 96 Divide Peak 8880 21.3 20.1 106 21.9 21.5 102 Elk River 8700 19.2 18.9 102 18.1 20.1 90 Little Snake River 8915 27.3 25.8 106 32.6 30.1 108 Old Battle 10000 32.2 31.6 102 30.3 35.2 86 Sage Creek Basin 7850 13.6 11.4 119 12.5 14.7 85 Sandstone RS 8150 15.0 12.7 118 16.2 18.4 88 Whiskey Park 8950 32.6 27.6 118 31.5 28.1 112 ----- ----- Basin Index (%) 109 97 UPPER GREEN RIVER Big Sandy Opening 9080 10.3 12.8 80 9.1 13.3 68 Blind Bull Sum 8650 26.6 23.4 114 16.2 19.4 84 East Rim Divide 7930 12.0 10.2 118 10.0 11.7 85 Elkhart Park G.S. 9400 11.0 12.3 89 10.6 13.3 80 Gros Ventre Summit 8750 13.2 12.8 103 12.6 12.9 98 Gunsight Pass 9820 13.3 13.9 96 13.6 13.9 98 Indian Creek 9425 24.2 24.8 98 16.8 22.5 75 Kendall R.S. 7740 10.7 11.2 96 11.3 14.1 80 Loomis Park 8240 15.3 13.8 111 18.4 17.3 106 New Fork Lake 8340 10.7 10.2 105 -M 10.8 * Pocket Creek 9360 -M -M * 8.6 -M * Snider Basin 8060 13.1 12.3 107 14.1 14.1 100 Spring Creek Divide 9000 27.1 22.6 120 25.3 23.7 107 Triple Peak 8500 28.3 21.6 131 26.8 25.2 106 ----- ----- Basin Index (%) 107 92 LOWER GREEN RIVER Blacks Fork Jct 8869 8.1 -M * 12.1 -M * Buck Pasture 9632 18.5 -M * 17.5 -M * EF Blacks Fork GS 9360 14.2 -M * 12.0 -M * Hams Fork 7840 11.6 10.3 113 11.7 11.4 103 Hewinta 9500 11.6 10.8 107 14.7 14.1 104 Hickerson Park 9122 10.9 7.9 138 11.8 10.3 115 Hole-in-Rock 9168 10.0 7.1 141 11.6 9.8 118 Indian Creek 9425 24.2 24.8 98 16.8 22.5 75 Kelley R.S. 8180 15.8 14.5 109 16.6 18.1 92 Spirit Lk 10235 18.3 -M * 18.6 -M * Steel Creek Park 10158 17.6 15.9 111 18.0 16.6 108 ----- ----- Basin Index (%) 111 98 UPPER BEAR RIVER Bear River RS 8777 9.9 -M * 11.7 -M * Bug Lake 7987 19.5 18.7 104 18.8 19.4 97 Burts Miller Ranch 8000 4.6 -M * 7.2 -M * Chalk Creek #1 9171 20.8 24.5 85 19.4 25.3 77 Hayden Fork 9130 16.2 15.2 107 20.6 21.2 97 Kelley R.S. 8180 15.8 14.5 109 16.6 18.1 92 Lily Lake 9133 12.6 12.8 98 13.1 17.3 76 Monte Cristo 8932 30.0 27.8 108 26.6 26.0 102 Salt River Summit 7640 15.5 12.6 123 16.3 16.6 98 Spring Creek Divide 9000 27.1 22.6 120 25.3 23.7 107 ----- ----- Basin Index (%) 106 93 ----------------------------------------------------------------------------- -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.