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 MONDAY: APRIL 1 , 2019 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7060 17.4 14.8 118 20.7 20.2 102 Black Bear 8170 41.6 36.3 115 40.9 36.6 112 Blind Bull Sum 8650 22.6 22.4 101 18.0 18.8 96 Cottonwood Creek 7670 20.3 21.2 96 24.4 23.7 103 East Rim Divide 7930 10.9 10.0 109 11.2 11.3 99 Grand Targhee 9260 40.6 36.5 111 30.1 29.4 102 Granite Creek 6770 18.6 14.9 125 19.7 19.1 103 Grassy Lake 7265 32.7 31.6 103 35.3 34.6 102 Gros Ventre Summit 8750 8.6 12.9 67 11.6 12.4 94 Gunsight Pass 9820 12.3 13.4 92 14.6 13.2 111 Lewis Lake Divide 7850 33.8 29.5 115 35.9 34.1 105 Phillips Bench 8200 28.1 24.2 116 30.5 27.1 113 Salt River Summit 7640 13.8 12.9 107 15.4 16.0 96 Snake River Station 6920 19.5 15.5 126 24.2 21.6 112 Spring Creek Divide 9000 22.2 22.5 99 22.6 22.9 99 Thumb Divide 7980 18.2 14.9 122 17.9 17.8 101 Togwotee Pass 9580 22.7 21.6 105 23.4 23.3 100 Two Ocean Plateau 9240 28.6 25.6 112 24.1 26.2 92 Willow Creek 8080 30.6 27.8 110 33.0 32.2 102 Younts Peak 8350 -M 14.1 * -M 15.2 * ----- ----- Basin Index (%) 108 103 MADISON-GALLATIN Black Bear 8170 41.6 36.3 115 40.9 36.6 112 Canyon 7870 13.1 12.3 107 15.0 15.5 97 Madison Plateau 7750 26.5 21.3 124 26.1 25.2 104 West Yellowstone 6700 13.4 10.2 131 16.2 13.5 120 Whiskey Creek 6800 18.9 15.0 126 19.3 19.4 99 ----- ----- Basin Index (%) 119 107 YELLOWSTONE Beartooth Lake 9360 18.9 21.0 90 17.6 18.9 93 Burnt Mtn 5880 8.1 4.4 184 12.6 12.1 104 Canyon 7870 13.1 12.3 107 15.0 15.5 97 Cole Creek 7850 15.1 13.5 112 -M 12.0 * Evening Star 9200 24.1 23.9 101 26.8 26.1 103 Fisher Creek 9100 29.0 30.1 96 31.9 30.4 105 Northeast Entrance 7350 9.6 9.6 100 12.5 11.7 107 Parker Peak 9400 22.1 18.8 118 22.4 16.9 133 Sylvan Lake 8420 20.2 19.2 105 25.7 21.3 121 Thumb Divide 7980 18.2 14.9 122 17.9 17.8 101 Two Ocean Plateau 9240 28.6 25.6 112 24.1 26.2 92 White Mill 8700 20.7 21.6 96 17.9 22.7 79 Wolverine 7650 11.2 9.1 123 12.0 11.7 103 Younts Peak 8350 -M 14.1 * -M 15.2 * ----- ----- Basin Index (%) 107 102 WIND RIVER Burroughs Creek 8750 10.2 -M * 12.0 -M * Castle Creek 8400 4.2 -M * 5.5 -M * Cold Springs 9630 6.9 7.1 97 7.3 9.5 77 Deer Park 9700 15.5 14.7 105 17.0 18.6 91 Hobbs Park 10100 14.2 13.4 106 10.9 12.5 87 Kirwin 9550 10.2 9.4 109 10.6 11.0 96 Little Warm 9370 8.8 10.2 86 8.6 12.3 70 Owl Creek 8975 4.8 5.5 87 5.5 5.7 96 South Pass 9040 13.3 14.9 89 10.9 16.6 66 St. Lawrence Alt 8620 -M 6.8 * -M 8.5 * Togwotee Pass 9580 22.7 21.6 105 23.4 23.3 100 Townsend Creek 8700 9.6 9.0 107 10.4 11.3 92 ----- ----- Basin Index (%) 100 87 BIGHORN BASIN Bald Mtn. 9380 15.9 18.6 85 11.8 16.3 72 Bear Trap Meadow 8200 7.1 5.1 139 6.7 8.1 83 Bone Springs Div 9350 12.4 15.9 78 10.9 14.8 74 Grave Springs 8550 8.0 8.9 90 8.9 10.0 89 Kirwin 9550 10.2 9.4 109 10.6 11.0 96 Marquette 8760 7.2 -M * 8.6 -M * Middle Powder 7760 8.9 11.4 78 4.9 11.1 44 Owl Creek 8975 4.8 5.5 87 5.5 5.7 96 Powder River Pass 9480 9.0 10.0 90 8.5 12.0 71 Shell Creek 9580 12.4 14.5 86 10.7 13.2 81 Timber Creek 7950 3.9 4.8 81 5.7 7.0 81 ----- ----- Basin Index (%) 89 77 SHOSHONE RIVER Blackwater 9780 22.3 22.1 101 22.6 19.7 115 Evening Star 9200 24.1 23.9 101 26.8 26.1 103 Marquette 8760 7.2 -M * 8.6 -M * Sylvan Lake 8420 20.2 19.2 105 25.7 21.3 121 Sylvan Road 7120 10.4 11.1 94 15.1 16.1 94 Younts Peak 8350 -M 14.1 * -M 15.2 * ----- ----- Basin Index (%) 101 108 POWDER RIVER Bear Trap Meadow 8200 7.1 5.1 139 6.7 8.1 83 Cloud Peak Reservoir 9860 11.3 14.1 80 10.1 12.6 80 Grave Springs 8550 8.0 8.9 90 8.9 10.0 89 Hansen Sawmill 8360 5.3 6.3 84 6.9 8.1 85 Middle Powder 7760 8.9 11.4 78 4.9 11.1 44 Powder River Pass 9480 9.0 10.0 90 8.5 12.0 71 Soldier Park 8720 4.0 -M * 6.4 -M * ----- ----- Basin Index (%) 89 74 TONGUE RIVER Big Goose 7990 7.6 8.9 85 9.4 10.6 89 Bone Springs Div 9350 12.4 15.9 78 10.9 14.8 74 Burgess Junction 7880 8.1 11.3 72 8.2 11.7 70 Dome Lake 8880 8.4 11.5 73 7.6 12.9 59 Little Goose 8870 8.6 -M * 7.4 -M * Sucker Creek 8880 10.3 11.4 90 9.4 13.6 69 Tie Creek 6870 4.4 5.4 81 9.4 10.9 86 ----- ----- Basin Index (%) 80 74 BELLE FOURCHE Blind Park 6890 6.8 7.2 94 7.3 11.3 65 Cole Canyon 5910 6.6 5.8 114 10.9 8.8 124 ----- ----- Basin Index (%) 103 91 CHEYENNE RIVER BASIN Blind Park 6890 6.8 7.2 94 7.3 11.3 65 North Rapid Creek 6130 6.3 6.7 94 6.7 9.3 72 ----- ----- Basin Index (%) 94 68 UPPER N. PLATTE Arapaho Ridge 10960 25.3 19.8 128 25.4 21.3 119 Blackhall Mtn 9820 32.0 -M * 32.5 -M * Columbine 9160 29.1 22.8 128 28.1 24.5 115 Divide Peak 8880 21.1 19.5 108 23.2 20.5 113 Joe Wright 10120 21.6 20.2 107 29.4 24.6 120 Laprele Creek 8375 13.3 9.5 140 14.2 11.8 120 Med Bow 10500 36.9 -M * 33.1 -M * Never Summer 10280 22.3 19.6 114 18.6 -M * North French Creek 10130 29.3 28.0 105 29.1 25.7 113 Old Battle 10000 35.4 29.6 120 35.9 33.6 107 Rawah 9020 14.6 10.3 142 17.1 13.5 127 Sage Creek Basin 7850 18.7 12.7 147 16.1 13.9 116 Sand Lake 10050 28.5 27.5 104 24.0 23.6 102 South Brush Creek 8440 11.8 12.2 97 12.0 14.6 82 Tower 10500 50.2 44.0 114 -M 38.1 * Webber Springs 9250 26.4 23.0 115 30.5 25.6 119 Whiskey Park 8950 31.2 25.8 121 31.9 26.9 119 Willow Creek Pass 9540 16.0 11.8 136 17.1 12.8 134 Zirkel 9340 33.3 26.4 126 36.5 27.2 134 ----- ----- Basin Index (%) 118 116 SWEETWATER Deer Park 9700 15.5 14.7 105 17.0 18.6 91 Larsen Creek 9000 10.4 12.2 85 13.7 -M * South Pass 9040 13.3 14.9 89 10.9 16.6 66 ----- ----- Basin Index (%) 94 79 LOWER N. PLATTE Casper Mtn. 7900 15.7 13.4 117 12.1 14.0 86 Laprele Creek 8375 13.3 9.5 140 14.2 11.8 120 Reno Hill 8400 16.4 13.2 124 16.7 14.5 115 Windy Peak 7900 11.1 7.8 142 11.4 10.0 114 ----- ----- Basin Index (%) 129 108 LARAMIE RIVER Brooklyn Lake 10240 23.7 20.0 118 24.7 20.1 123 Cinnabar Park 9574 20.5 20.0 102 22.8 23.0 99 Crow Creek 8330 5.9 6.8 87 10.2 10.2 100 Deadman Hill 10220 21.0 15.6 135 19.5 16.4 119 Rawah 9020 14.6 10.3 142 17.1 13.5 127 Roach 9700 17.8 15.6 114 21.1 18.3 115 Windy Peak 7900 11.1 7.8 142 11.4 10.0 114 ----- ----- Basin Index (%) 119 114 S. PLATTE Black Mountain 8920 11.7 -M * 12.6 -M * Crow Creek 8330 5.9 6.8 87 10.2 10.2 100 Deadman Hill 10220 21.0 15.6 135 19.5 16.4 119 ----- ----- Basin Index (%) 120 112 LITTLE SNAKE RIVER Battle Mountain 7440 13.3 10.6 125 15.9 14.5 110 Divide Peak 8880 21.1 19.5 108 23.2 20.5 113 Elk River 8700 20.2 18.5 109 19.1 19.3 99 Little Snake River 8915 29.3 23.2 126 36.6 28.5 128 Old Battle 10000 35.4 29.6 120 35.9 33.6 107 Sage Creek Basin 7850 18.7 12.7 147 16.1 13.9 116 Sandstone RS 8150 17.5 13.1 134 18.2 17.7 103 Whiskey Park 8950 31.2 25.8 121 31.9 26.9 119 ----- ----- Basin Index (%) 122 113 UPPER GREEN RIVER Big Sandy Opening 9080 13.2 12.3 107 14.0 12.7 110 Blind Bull Sum 8650 22.6 22.4 101 18.0 18.8 96 East Rim Divide 7930 10.9 10.0 109 11.2 11.3 99 Elkhart Park G.S. 9400 12.7 12.1 105 13.3 12.8 104 Gros Ventre Summit 8750 8.6 12.9 67 11.6 12.4 94 Gunsight Pass 9820 12.3 13.4 92 14.6 13.2 111 Indian Creek 9425 22.0 23.9 92 17.5 21.7 81 Kendall R.S. 7740 10.3 11.4 90 11.2 13.7 82 Loomis Park 8240 15.5 14.3 108 16.3 16.7 98 New Fork Lake 8340 10.1 10.3 98 9.3 10.4 89 Pocket Creek 9360 14.1 -M * 14.7 -M * Snider Basin 8060 11.4 12.2 93 13.1 13.7 96 Spring Creek Divide 9000 22.2 22.5 99 22.6 22.9 99 Triple Peak 8500 22.8 21.7 105 24.3 24.4 100 ----- ----- Basin Index (%) 98 96 LOWER GREEN RIVER Blacks Fork Jct 8869 9.2 -M * 12.3 -M * Buck Pasture 9632 15.0 -M * 18.1 -M * EF Blacks Fork GS 9360 11.9 -M * 10.3 -M * Hams Fork 7840 10.7 10.8 99 11.0 10.9 101 Hewinta 9500 12.7 10.9 117 13.9 13.4 104 Hickerson Park 9122 9.2 7.5 123 10.7 9.7 110 Hole-in-Rock 9168 6.6 7.0 94 9.8 9.2 107 Indian Creek 9425 22.0 23.9 92 17.5 21.7 81 Kelley R.S. 8180 14.8 14.9 99 15.1 17.4 87 Spirit Lk 10235 15.6 -M * 15.9 -M * Steel Creek Park 10158 15.0 15.3 98 17.5 15.7 111 ----- ----- Basin Index (%) 101 97 UPPER BEAR RIVER Bear River RS 8777 12.0 -M * 14.4 -M * Bug Lake 7987 23.3 18.1 129 22.7 18.7 121 Burts Miller Ranch 8000 7.7 -M * 8.2 -M * Chalk Creek #1 9171 25.0 23.4 107 28.6 24.1 119 Hayden Fork 9130 17.5 15.1 116 22.2 20.1 110 Kelley R.S. 8180 14.8 14.9 99 15.1 17.4 87 Lily Lake 9133 12.5 12.1 103 15.7 16.3 96 Monte Cristo 8932 32.4 26.3 123 30.4 24.9 122 Salt River Summit 7640 13.8 12.9 107 15.4 16.0 96 Spring Creek Divide 9000 22.2 22.5 99 22.6 22.9 99 ----- ----- Basin Index (%) 111 108 ----------------------------------------------------------------------------- -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.