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: MARCH 7 , 2019 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7060 17.9 13.7 131 19.5 17.9 109 Black Bear 8170 38.7 30.7 126 38.3 32.3 119 Blind Bull Sum 8650 20.3 18.9 107 16.5 16.5 100 Cottonwood Creek 7670 18.4 18.1 102 21.6 20.3 106 East Rim Divide 7930 10.1 9.0 112 10.3 10.0 103 Grand Targhee 9260 37.5 31.2 120 28.2 25.3 111 Granite Creek 6770 18.2 14.3 127 19.1 17.2 111 Grassy Lake 7265 30.2 27.1 111 33.3 30.6 109 Gros Ventre Summit 8750 8.6 10.6 81 10.4 10.6 98 Gunsight Pass 9820 11.9 11.2 106 13.8 11.3 122 Lewis Lake Divide 7850 31.7 25.8 123 30.5 30.1 101 Phillips Bench 8200 26.6 20.6 129 -M 23.7 * Salt River Summit 7640 11.7 10.9 107 13.6 14.0 97 Snake River Station 6920 19.4 14.8 131 23.6 19.4 122 Spring Creek Divide 9000 20.3 19.4 105 21.0 20.0 105 Thumb Divide 7980 16.8 12.7 132 16.2 15.4 105 Togwotee Pass 9580 21.7 19.0 114 22.2 20.2 110 Two Ocean Plateau 9240 27.0 22.3 121 21.5 22.7 95 Willow Creek 8080 26.3 23.6 111 29.7 27.8 107 Younts Peak 8350 -M 12.1 * -M 13.1 * ----- ----- Basin Index (%) 117 108 MADISON-GALLATIN Black Bear 8170 38.7 30.7 126 38.3 32.3 119 Canyon 7870 12.3 11.2 110 14.1 13.6 104 Madison Plateau 7750 25.3 18.6 136 24.7 22.2 111 West Yellowstone 6700 13.6 9.3 146 15.6 12.1 129 Whiskey Creek 6800 17.7 12.6 140 18.0 17.0 106 ----- ----- Basin Index (%) 131 114 YELLOWSTONE Beartooth Lake 9360 17.9 17.8 101 16.5 16.4 101 Burnt Mtn 5880 7.6 4.3 177 11.8 9.8 120 Canyon 7870 12.3 11.2 110 14.1 13.6 104 Cole Creek 7850 13.6 10.8 126 -M 9.5 * Evening Star 9200 23.1 20.3 114 25.1 22.9 110 Fisher Creek 9100 27.3 26.5 103 30.1 26.5 114 Northeast Entrance 7350 9.9 8.6 115 12.0 10.3 117 Parker Peak 9400 -M 16.4 * -M 14.6 * Sylvan Lake 8420 18.6 16.6 112 24.0 18.6 129 Thumb Divide 7980 16.8 12.7 132 16.2 15.4 105 Two Ocean Plateau 9240 27.0 22.3 121 21.5 22.7 95 White Mill 8700 19.4 18.8 103 17.0 19.8 86 Wolverine 7650 11.6 8.9 130 11.5 10.3 112 Younts Peak 8350 -M 12.1 * -M 13.1 * ----- ----- Basin Index (%) 115 107 WIND RIVER Burroughs Creek 8750 9.9 -M * 11.6 -M * Castle Creek 8400 3.9 -M * 5.2 -M * Cold Springs 9630 5.9 5.7 104 6.3 7.8 81 Deer Park 9700 14.6 11.4 128 15.6 15.9 98 Hobbs Park 10100 12.1 10.6 114 9.3 10.1 92 Kirwin 9550 9.1 7.5 121 9.4 9.1 103 Little Warm 9370 7.7 8.4 92 7.7 10.3 75 Owl Creek 8975 4.4 4.2 105 5.0 4.5 111 South Pass 9040 12.2 12.2 100 10.4 14.2 73 St. Lawrence Alt 8620 3.8 5.7 67 7.2 6.8 106 Togwotee Pass 9580 21.7 19.0 114 22.2 20.2 110 Townsend Creek 8700 7.7 7.2 107 8.4 9.1 92 ----- ----- Basin Index (%) 108 94 BIGHORN BASIN Bald Mtn. 9380 14.7 15.6 94 10.7 13.6 79 Bear Trap Meadow 8200 7.0 4.6 152 6.2 6.4 97 Bone Springs Div 9350 11.2 13.0 86 9.7 12.3 79 Grave Springs 8550 6.4 7.2 89 7.3 8.2 89 Kirwin 9550 9.1 7.5 121 9.4 9.1 103 Marquette 8760 6.2 -M * 7.7 -M * Middle Powder 7760 7.5 8.5 88 4.3 9.1 47 Owl Creek 8975 4.4 4.2 105 5.0 4.5 111 Powder River Pass 9480 8.6 8.2 105 8.1 10.0 81 Shell Creek 9580 11.7 12.1 97 10.0 11.0 91 Timber Creek 7950 3.1 4.0 78 5.0 5.4 93 ----- ----- Basin Index (%) 99 84 SHOSHONE RIVER Blackwater 9780 20.8 18.4 113 21.2 16.7 127 Evening Star 9200 23.1 20.3 114 25.1 22.9 110 Marquette 8760 6.2 -M * 7.7 -M * Sylvan Lake 8420 18.6 16.6 112 24.0 18.6 129 Sylvan Road 7120 11.5 9.9 116 14.6 14.4 101 Younts Peak 8350 -M 12.1 * -M 13.1 * ----- ----- Basin Index (%) 113 117 POWDER RIVER Bear Trap Meadow 8200 7.0 4.6 152 6.2 6.4 97 Cloud Peak Reservoir 9860 9.7 11.2 87 8.7 10.0 87 Grave Springs 8550 6.4 7.2 89 7.3 8.2 89 Hansen Sawmill 8360 4.5 4.9 92 6.0 6.4 94 Middle Powder 7760 7.5 8.5 88 4.3 9.1 47 Powder River Pass 9480 8.6 8.2 105 8.1 10.0 81 Soldier Park 8720 3.2 -M * 5.7 -M * ----- ----- Basin Index (%) 98 81 TONGUE RIVER Big Goose 7990 6.2 6.5 95 8.4 8.2 102 Bone Springs Div 9350 11.2 13.0 86 9.7 12.3 79 Burgess Junction 7880 6.6 8.9 74 7.5 9.5 79 Dome Lake 8880 6.9 9.1 76 6.8 10.4 65 Little Goose 8870 7.5 -M * 6.3 -M * Sucker Creek 8880 8.7 9.7 90 8.4 11.1 76 Tie Creek 6870 3.7 4.6 80 8.0 8.8 91 ----- ----- Basin Index (%) 84 81 BELLE FOURCHE Blind Park 6890 7.3 6.6 111 6.3 9.8 64 Cole Canyon 5910 5.4 4.9 110 9.6 7.3 132 ----- ----- Basin Index (%) 110 93 CHEYENNE RIVER BASIN Blind Park 6890 7.3 6.6 111 6.3 9.8 64 North Rapid Creek 6130 5.8 6.1 95 5.8 7.9 73 ----- ----- Basin Index (%) 103 68 UPPER N. PLATTE Arapaho Ridge 10960 21.1 17.3 122 21.4 18.3 117 Blackhall Mtn 9820 27.2 -M * 28.5 -M * Columbine 9160 25.0 20.7 121 24.9 21.1 118 Divide Peak 8880 17.0 16.6 102 19.4 17.5 111 Joe Wright 10120 17.9 17.8 101 25.6 20.9 122 Laprele Creek 8375 9.9 8.0 124 10.4 9.8 106 Med Bow 10500 31.7 -M * 29.2 -M * Never Summer 10280 18.6 16.6 112 15.7 -M * North French Creek 10130 24.8 21.8 114 25.3 21.8 116 Old Battle 10000 30.8 24.9 124 30.4 29.0 105 Rawah 9020 12.0 9.0 133 14.6 11.3 129 Sage Creek Basin 7850 15.4 11.0 140 15.0 12.1 124 Sand Lake 10050 23.7 21.8 109 20.0 19.8 101 South Brush Creek 8440 9.6 10.9 88 10.2 12.2 84 Tower 10500 45.1 37.6 120 35.6 33.1 108 Webber Springs 9250 22.3 19.6 114 26.4 22.0 120 Whiskey Park 8950 26.0 22.6 115 28.4 23.2 122 Willow Creek Pass 9540 12.9 10.0 129 14.3 10.8 132 Zirkel 9340 29.1 24.5 119 31.1 23.8 131 ----- ----- Basin Index (%) 116 115 SWEETWATER Deer Park 9700 14.6 11.4 128 15.6 15.9 98 Larsen Creek 9000 10.7 10.0 107 13.5 -M * South Pass 9040 12.2 12.2 100 10.4 14.2 73 ----- ----- Basin Index (%) 112 86 LOWER N. PLATTE Casper Mtn. 7900 11.2 11.1 101 9.3 11.6 80 Laprele Creek 8375 9.9 8.0 124 10.4 9.8 106 Reno Hill 8400 12.0 10.9 110 12.6 11.7 108 Windy Peak 7900 7.8 6.2 126 8.2 8.2 100 ----- ----- Basin Index (%) 113 98 LARAMIE RIVER Brooklyn Lake 10240 20.1 16.1 125 21.0 16.9 124 Cinnabar Park 9574 17.8 17.6 101 20.3 20.1 101 Crow Creek 8330 4.3 7.0 61 8.1 8.2 99 Deadman Hill 10220 17.0 12.7 134 15.8 13.5 117 Rawah 9020 12.0 9.0 133 14.6 11.3 129 Roach 9700 14.6 12.9 113 17.8 15.5 115 Windy Peak 7900 7.8 6.2 126 8.2 8.2 100 ----- ----- Basin Index (%) 115 113 S. PLATTE Black Mountain 8920 9.0 -M * 9.9 -M * Crow Creek 8330 4.3 7.0 61 8.1 8.2 99 Deadman Hill 10220 17.0 12.7 134 15.8 13.5 117 ----- ----- Basin Index (%) 108 110 LITTLE SNAKE RIVER Battle Mountain 7440 11.9 10.2 117 14.4 12.6 114 Divide Peak 8880 17.0 16.6 102 19.4 17.5 111 Elk River 8700 17.4 16.5 105 16.2 16.6 98 Little Snake River 8915 25.3 20.1 126 32.3 25.5 127 Old Battle 10000 30.8 24.9 124 30.4 29.0 105 Sage Creek Basin 7850 15.4 11.0 140 15.0 12.1 124 Sandstone RS 8150 15.5 11.5 135 16.2 15.6 104 Whiskey Park 8950 26.0 22.6 115 28.4 23.2 122 ----- ----- Basin Index (%) 119 113 UPPER GREEN RIVER Big Sandy Opening 9080 12.6 10.5 120 13.4 10.9 123 Blind Bull Sum 8650 20.3 18.9 107 16.5 16.5 100 East Rim Divide 7930 10.1 9.0 112 10.3 10.0 103 Elkhart Park G.S. 9400 11.5 9.8 117 12.1 10.9 111 Gros Ventre Summit 8750 8.6 10.6 81 10.4 10.6 98 Gunsight Pass 9820 11.9 11.2 106 13.8 11.3 122 Indian Creek 9425 18.8 19.7 95 15.2 18.6 82 Kendall R.S. 7740 10.5 10.3 102 11.0 12.2 90 Loomis Park 8240 14.7 12.4 119 15.6 14.6 107 New Fork Lake 8340 9.1 8.7 105 8.3 9.1 91 Pocket Creek 9360 13.1 -M * 13.7 -M * Snyder Basin 8060 10.7 10.4 103 12.3 12.0 102 Spring Creek Divide 9000 20.3 19.4 105 21.0 20.0 105 Triple Peak 8500 20.6 18.0 114 22.6 21.1 107 ----- ----- Basin Index (%) 106 103 LOWER GREEN RIVER Blacks Fork Jct 8869 7.6 -M * 10.4 -M * Buck Pasture 9632 12.8 -M * 15.2 -M * EF Blacks Fork GS 9360 10.2 -M * 8.5 -M * Hams Fork 7840 9.3 9.8 95 9.7 9.5 102 Hewinta 9500 9.1 8.4 108 11.8 11.3 104 Hickerson Park 9122 6.6 6.2 106 8.9 8.0 111 Hole-in-Rock 9168 5.6 5.9 95 8.6 7.4 116 Indian Creek 9425 18.8 19.7 95 15.2 18.6 82 Kelley R.S. 8180 12.2 12.4 98 12.8 15.1 85 Spirit Lk 10235 12.7 -M * 13.1 -M * Steel Creek Park 10158 12.0 12.2 98 14.5 12.9 112 ----- ----- Basin Index (%) 99 98 UPPER BEAR RIVER Bear River RS 8777 9.2 -M * 12.2 -M * Bug Lake 7987 19.4 15.6 124 19.5 16.1 121 Burts Miller Ranch 8000 6.2 -M * 7.2 -M * Chalk Creek #1 9171 20.7 19.2 108 24.2 20.4 119 Hayden Fork 9130 15.0 12.6 119 19.7 17.1 115 Kelley R.S. 8180 12.2 12.4 98 12.8 15.1 85 Lily Lake 9133 10.3 10.7 96 13.5 13.8 98 Monte Cristo 8932 26.1 22.3 117 25.2 21.3 118 Salt River Summit 7640 11.7 10.9 107 13.6 14.0 97 Spring Creek Divide 9000 20.3 19.4 105 21.0 20.0 105 ----- ----- Basin Index (%) 110 108 ----------------------------------------------------------------------------- -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.