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 14 , 2018 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7060 13.4 12.4 108 15.1 15.3 99 Black Bear 8170 28.9 26.9 107 27.6 27.3 101 Blind Bull Sum 8650 23.5 15.7 150 14.3 14.2 101 Cottonwood Creek 7670 15.1 14.5 104 17.1 17.5 98 East Rim Divide 7930 8.4 7.2 117 8.5 8.4 101 Grand Targhee 9260 34.9 26.0 134 22.3 22.9 97 Granite Creek 6770 12.6 12.1 104 15.1 14.8 102 Grassy Lake 7265 22.0 23.5 94 25.2 26.4 95 Gros Ventre Summit 8750 9.6 8.9 108 9.6 8.9 108 Gunsight Pass 9820 11.1 9.2 121 11.2 9.8 114 Lewis Lake Divide 7850 26.4 22.8 116 27.7 25.6 108 Phillips Bench 8200 17.0 17.6 97 18.0 20.1 90 Salt River Summit 7640 6.6 9.0 73 8.5 11.8 72 Snake River Station 6920 13.2 12.9 102 17.9 16.9 106 Spring Creek Divide 9000 18.1 16.2 112 17.5 17.1 102 Thumb Divide 7980 12.8 10.4 123 13.4 13.2 102 Togwotee Pass 9580 22.3 16.3 137 22.9 17.4 132 Two Ocean Plateau 9240 28.0 19.3 145 20.2 19.3 105 Willow Creek 8080 22.0 19.0 116 24.5 23.8 103 Younts Peak 8350 -M 10.6 * -M 11.4 * ----- ----- Basin Index (%) 115 102 MADISON-GALLATIN Black Bear 8170 28.9 26.9 107 27.6 27.3 101 Canyon 7870 12.1 9.2 132 13.9 11.8 118 Madison Plateau 7750 17.8 15.5 115 18.3 18.9 97 West Yellowstone 6700 9.0 7.5 120 11.8 10.6 111 Whiskey Creek 6800 10.7 10.5 102 12.8 14.5 88 ----- ----- Basin Index (%) 113 102 YELLOWSTONE Beartooth Lake 9360 30.3 15.2 199 -M 14.2 * Burnt Mtn 5880 4.5 3.3 136 10.6 8.5 125 Canyon 7870 12.1 9.2 132 13.9 11.8 118 Cole Creek 7850 10.2 8.8 116 6.9 8.3 83 Evening Star 9200 31.2 17.3 180 30.8 19.8 156 Fisher Creek 9100 39.3 22.7 173 33.8 22.8 148 Northeast Entrance 7350 10.5 7.2 146 14.1 9.0 157 Parker Peak 9400 24.8 13.9 178 21.2 12.5 170 Sylvan Lake 8420 17.7 13.9 127 19.5 16.2 120 Thumb Divide 7980 12.8 10.4 123 13.4 13.2 102 Two Ocean Plateau 9240 28.0 19.3 145 20.2 19.3 105 White Mill 8700 32.1 16.1 199 23.5 17.0 138 Wolverine 7650 -M 7.8 * -M 9.0 * ----- ----- Basin Index (%) 161 131 WIND RIVER Burroughs Creek 8750 11.9 -M * 13.9 -M * Castle Creek 8400 6.4 -M * 7.6 -M * Cold Springs 9630 7.0 5.0 140 7.4 6.6 112 Deer Park 9700 7.7 9.6 80 10.0 13.6 74 Hobbs Park 10100 11.9 8.4 142 10.3 8.5 121 Kirwin 9550 14.8 6.2 239 13.3 7.9 168 Little Warm 9370 11.7 7.1 165 12.0 8.9 135 Owl Creek 8975 3.2 3.2 100 4.9 3.8 129 South Pass 9040 7.8 10.0 78 -M 11.9 * St. Lawrence Alt 8620 2.5 4.5 56 6.4 5.7 112 Togwotee Pass 9580 22.3 16.3 137 22.9 17.4 132 Townsend Creek 8700 5.3 5.8 91 6.6 7.7 86 ----- ----- Basin Index (%) 124 117 BIGHORN BASIN Bald Mtn. 9380 15.7 12.6 125 10.8 11.7 92 Bear Trap Meadow 8200 6.8 3.8 179 7.6 5.5 138 Bone Springs Div 9350 14.2 10.6 134 10.4 10.5 99 Grave Springs 8550 4.9 5.5 89 3.9 7.1 55 Kirwin 9550 14.8 6.2 239 13.3 7.9 168 Marquette 8760 4.3 -M * 7.8 -M * Middle Powder 7760 6.4 7.0 91 4.6 7.9 58 Owl Creek 8975 3.2 3.2 100 4.9 3.8 129 Powder River Pass 9480 12.9 7.1 182 11.7 8.5 138 Shell Creek 9580 -M 10.0 * 12.5 9.6 130 Timber Creek 7950 2.6 3.1 84 -M 4.8 * ----- ----- Basin Index (%) 138 110 SHOSHONE RIVER Blackwater 9780 25.8 15.4 168 23.8 14.4 165 Evening Star 9200 31.2 17.3 180 30.8 19.8 156 Marquette 8760 4.3 -M * 7.8 -M * Sylvan Road 7120 11.6 8.6 135 16.4 12.8 128 Younts Peak 8350 -M 10.6 * -M 11.4 * ----- ----- Basin Index (%) 166 151 POWDER RIVER Bear Trap Meadow 8200 6.8 3.8 179 7.6 5.5 138 Cloud Peak Reservoir 9860 11.7 9.4 124 10.3 8.6 120 Grave Springs 8550 4.9 5.5 89 3.9 7.1 55 Hansen Sawmill 8360 5.8 4.3 135 7.0 5.4 130 Middle Powder 7760 6.4 7.0 91 4.6 7.9 58 Powder River Pass 9480 12.9 7.1 182 11.7 8.5 138 Soldier Park 8720 4.6 -M * 6.9 -M * ----- ----- Basin Index (%) 131 105 TONGUE RIVER Big Goose 7990 5.3 5.6 95 5.7 7.2 79 Bone Springs Div 9350 14.2 10.6 134 10.4 10.5 99 Burgess Junction 7880 6.6 7.3 90 5.9 8.1 73 Dome Lake 8880 10.8 7.6 142 8.3 9.0 92 Little Goose 8870 6.4 -M * 8.5 -M * Sucker Creek 8880 7.3 7.8 94 -M 9.5 * Tie Creek 6870 3.0 3.8 79 6.3 7.6 83 ----- ----- Basin Index (%) 111 86 BELLE FOURCHE Cole Canyon 5910 5.1 4.3 119 7.0 6.5 108 ----- ----- Basin Index (%) 119 108 CHEYENNE RIVER BASIN Blind Park 6890 6.4 5.5 116 8.7 8.4 104 North Rapid Creek 6130 5.8 5.2 112 6.2 6.9 90 ----- ----- Basin Index (%) 114 97 UPPER N. PLATTE Arapaho Ridge 10960 14.4 14.5 99 14.4 15.8 91 Blackhall Mtn 9820 18.4 -M * 18.4 -M * Columbine 9160 15.3 16.9 91 17.4 18.2 96 Divide Peak 8880 9.0 13.9 65 12.5 15.1 83 Joe Wright 10120 12.1 14.1 86 20.6 17.7 116 Laprele Creek 8375 4.6 6.3 73 6.0 8.3 72 Med Bow 10500 29.2 -M * 24.4 -M * North French Creek 10130 19.1 18.6 103 19.3 18.7 103 Never Summer 10280 13.0 13.8 94 10.8 -M * Old Battle 10000 17.1 21.5 80 16.6 24.9 67 Rawah 9020 8.2 7.2 114 11.3 9.7 116 Sage Creek Basin 7850 6.2 9.3 67 7.4 10.8 69 Sand Lake 10050 18.3 18.2 101 15.2 16.7 91 South Brush Creek 8440 6.4 8.0 80 8.1 10.4 78 Tower 10500 23.8 31.7 75 22.8 28.3 81 Webber Springs 9250 12.5 16.2 77 14.9 18.7 80 Willow Creek Pass 9540 9.8 8.4 117 10.5 9.1 115 Zirkel 9340 17.6 20.4 86 22.2 21.0 106 ----- ----- Basin Index (%) 87 90 SWEETWATER Deer Park 9700 7.7 9.6 80 10.0 13.6 74 Larsen Creek 9000 7.2 8.3 87 7.9 -M * South Pass 9040 7.8 10.0 78 -M 11.9 * ----- ----- Basin Index (%) 81 74* LOWER N. PLATTE Casper Mtn. 7900 5.6 8.5 66 4.3 9.9 43 Laprele Creek 8375 4.6 6.3 73 6.0 8.3 72 Reno Hill 8400 6.9 8.5 81 8.0 9.9 81 Windy Peak 7900 4.2 4.9 86 5.8 7.0 83 ----- ----- Basin Index (%) 76 69 LARAMIE RIVER Brooklyn Lake 10240 17.6 13.5 130 18.3 14.2 129 Cinnabar Park 9574 16.8 15.3 110 19.1 17.8 107 Crow Creek 8330 2.1 6.1 34 7.5 7.0 107 Deadman Hill 10220 14.1 11.2 126 13.7 11.3 121 Rawah 9020 8.2 7.2 114 11.3 9.7 116 Roach 9700 10.2 11.2 91 12.9 13.0 99 ----- ----- Basin Index (%) 107 113 S. PLATTE Black Mountain 8920 6.6 -M * 9.2 -M * Crow Creek 8330 2.1 6.1 34 7.5 7.0 107 Deadman Hill 10220 14.1 11.2 126 13.7 11.3 121 ----- ----- Basin Index (%) 94 116 LITTLE SNAKE RIVER Battle Mountain 7440 3.5 8.3 42 6.6 10.8 61 Divide Peak 8880 9.0 13.9 65 12.5 15.1 83 Elk River 8700 9.8 13.3 74 10.9 14.2 77 Little Snake River 8915 14.2 17.8 80 19.3 22.8 85 Old Battle 10000 17.1 21.5 80 16.6 24.9 67 Sage Creek Basin 7850 6.2 9.3 67 7.4 10.8 69 Sandstone RS 8150 5.6 9.5 59 5.6 13.4 42 Whiskey Park 8950 15.1 18.5 82 17.6 20.0 88 ----- ----- Basin Index (%) 72 73 UPPER GREEN RIVER Big Sandy Opening 9080 8.8 8.8 100 8.7 9.2 95 Blind Bull Sum 8650 23.5 15.7 150 14.3 14.2 101 East Rim Divide 7930 8.4 7.2 117 8.5 8.4 101 Elkhart Park G.S. 9400 8.8 8.3 106 8.3 9.3 89 Gros Ventre Summit 8750 9.6 8.9 108 9.6 8.9 108 Gunsight Pass 9820 11.1 9.2 121 11.2 9.8 114 Kendall R.S. 7740 10.3 8.7 118 11.0 10.2 108 Loomis Park 8240 11.7 10.5 111 12.6 12.3 102 New Fork Lake 8340 8.5 7.4 115 7.7 7.7 100 Pocket Creek 9360 6.1 -M * 5.8 -M * Snider Basin 8060 8.8 8.8 100 10.7 10.2 105 Spring Creek Divide 9000 18.1 16.2 112 17.5 17.1 102 Triple Peak 8500 20.2 15.3 132 22.1 17.7 125 ----- ----- Basin Index (%) 118 105 LOWER GREEN RIVER Blacks Fork Jct 8869 4.7 -M * 6.1 -M * Buck Pasture 9632 7.6 -M * 8.6 -M * EF Blacks Fork GS 9360 5.5 -M * -M -M * Hams Fork 7840 5.5 8.2 67 6.0 8.1 74 Hewinta 9500 4.7 6.8 69 7.6 9.6 79 Hickerson Park 9122 4.5 4.8 94 3.8 6.8 56 Hole-in-Rock 9168 3.9 4.6 85 4.4 6.3 70 Indian Creek 9425 14.0 16.2 86 10.2 15.6 65 Kelley R.S. 8180 8.2 10.1 81 9.4 12.8 73 Spirit Lk 10235 5.1 -M * 5.6 -M * Steel Creek Park 10158 8.9 10.0 89 9.2 11.0 84 ----- ----- Basin Index (%) 82 72 UPPER BEAR RIVER Bear River RS 8777 5.7 -M * 7.2 -M * Bug Lake 7987 9.8 12.8 77 10.6 13.7 77 Burts Miller Ranch 8000 3.7 -M * 4.4 -M * Chalk Creek #1 9171 9.3 15.5 60 10.8 17.3 62 Hayden Fork 9130 8.2 10.3 80 10.5 14.5 72 Kelley R.S. 8180 8.2 10.1 81 9.4 12.8 73 Lily Lake 9133 6.9 8.6 80 7.5 11.8 64 Monte Cristo 8932 12.6 18.2 69 12.9 18.0 72 Salt River Summit 7640 6.6 9.0 73 8.5 11.8 72 ----- ----- Basin Index (%) 73 70 ----------------------------------------------------------------------------- -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.