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 TUESDAY: FEBRUARY 21 , 2017 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7030 22.8 13.0 175 31.1 16.4 190 Black Bear 8170 34.0 28.0 121 41.8 29.1 144 Blind Bull Sum 8650 34.7 17.1 203 -M 15.2 * Cottonwood Creek 7670 22.6 15.7 144 29.8 18.5 161 East Rim Divide 7930 16.3 7.5 217 18.1 9.0 201 Grand Targhee 9260 34.9 27.9 125 31.4 23.7 132 Granite Creek 6770 25.8 13.0 198 26.4 15.7 168 Grassy Lake 7265 30.6 24.8 123 42.8 28.1 152 Gros Ventre Summit 8750 15.4 9.3 166 18.8 9.5 198 Gunsight Pass 9820 16.6 10.0 166 19.7 10.2 193 Lewis Lake Divide 7850 31.7 24.4 130 41.6 27.4 152 Phillips Bench 8200 29.8 18.7 159 38.4 21.5 179 Salt River Summit 7760 17.9 10.0 179 23.6 12.8 184 Snake River Station 6920 18.7 13.6 138 29.0 17.8 163 Spring Creek Divide 9000 30.6 17.2 178 29.7 18.3 162 Thumb Divide 7980 19.1 11.2 171 21.4 13.9 154 Togwotee Pass 9580 26.1 16.9 154 30.1 18.4 164 Two Ocean Plateau 9240 -M 20.4 * -M 20.5 * Willow Creek 8380 27.3 20.7 132 38.1 25.2 151 Younts Peak 8350 20.9 11.2 187 24.0 12.1 198 ----- ----- Basin Index (%) 153 164 MADISON-GALLATIN Black Bear 8170 34.0 28.0 121 41.8 29.1 144 Canyon 7870 14.2 9.9 143 20.6 12.5 165 Madison Plateau 7750 21.3 16.7 128 29.3 20.0 146 West Yellowstone 6700 10.8 8.2 132 19.0 11.1 171 Whiskey Creek 6800 12.9 11.3 114 21.3 15.4 138 ----- ----- Basin Index (%) 126 150 YELLOWSTONE Beartooth Lake 9360 24.2 15.8 153 19.9 15.0 133 Burnt Mtn 5880 4.7 3.8 124 10.1 9.0 112 Canyon 7870 14.2 9.9 143 20.6 12.5 165 Cole Creek 7850 7.4 9.0 82 5.7 8.6 66 Evening Star 9200 28.4 18.4 154 33.7 21.0 160 Fisher Creek 9100 30.7 24.6 125 34.8 24.2 144 Northeast Entrance 7350 9.5 7.6 125 15.5 9.5 163 Parker Peak 9400 24.7 14.9 166 23.4 13.3 176 Sylvan Lake 8420 19.0 15.0 127 30.1 17.1 176 Thumb Divide 7980 19.1 11.2 171 21.4 13.9 154 Two Ocean Plateau 9240 -M 20.4 * -M 20.5 * White Mill 8700 23.4 17.2 136 25.5 18.1 141 Wolverine 7650 13.6 8.2 166 17.1 9.5 180 ----- ----- Basin Index (%) 141 150 WIND RIVER Burroughs Creek 8750 19.2 -M * 21.1 -M * Castle Creek 8400 10.1 -M * 12.4 -M * Cold Springs 9630 9.9 5.3 187 12.1 7.1 170 Deer Park 9700 24.1 10.2 236 27.0 14.3 189 Hobbs Park 10100 17.3 9.0 192 15.8 9.0 176 Kirwin 9550 14.8 6.4 231 17.3 8.3 208 Little Warm 9370 11.8 7.7 153 17.3 9.3 186 Owl Creek 8975 5.7 3.6 158 7.3 4.1 178 South Pass 9040 22.3 10.6 210 20.4 12.8 159 St. Lawrence Alt 8620 5.3 4.9 108 9.8 6.1 161 Togwotee Pass 9580 26.1 16.9 154 30.1 18.4 164 Townsend Creek 8700 8.9 6.1 146 12.0 8.2 146 ----- ----- Basin Index (%) 181 173 BIGHORN BASIN Bald Mtn. 9380 14.1 13.8 102 12.4 12.3 101 Bear Trap Meadow 8200 3.9 4.0 98 5.2 5.8 90 Bone Springs Div 9350 12.0 11.2 107 12.0 11.0 109 Grave Springs 8550 4.5 6.0 75 4.8 7.4 65 Kirwin 9550 14.8 6.4 231 17.3 8.3 208 Marquette 8760 6.2 -M * 9.9 -M * Middle Powder 7760 5.0 7.4 68 5.6 8.3 67 Owl Creek 8975 5.7 3.6 158 7.3 4.1 178 Powder River Pass 9480 5.2 7.5 69 8.2 9.0 91 Shell Creek 9580 12.0 10.5 114 9.4 10.0 94 Timber Creek 7950 4.4 3.1 142 5.8 4.9 118 ----- ----- Basin Index (%) 111 109 SHOSHONE RIVER Blackwater 9780 28.4 16.3 174 31.6 15.3 207 Evening Star 9200 28.4 18.4 154 33.7 21.0 160 Marquette 8760 6.2 -M * 9.9 -M * Sylvan Road 7120 13.4 8.8 152 24.5 13.4 183 Younts Peak 8350 20.9 11.2 187 24.0 12.1 198 ----- ----- Basin Index (%) 167 184 POWDER RIVER Bear Trap Meadow 8200 3.9 4.0 98 5.2 5.8 90 Cloud Peak Reservoir 9860 8.9 9.9 90 10.5 9.0 117 Grave Springs 8550 4.5 6.0 75 4.8 7.4 65 Hansen Sawmill 8360 6.1 4.4 139 8.0 5.7 140 Middle Powder 7760 5.0 7.4 68 5.6 8.3 67 Powder River Pass 9480 5.2 7.5 69 8.2 9.0 91 Soldier Park 8720 9.3 -M * 7.9 -M * ----- ----- Basin Index (%) 86 94 TONGUE RIVER Big Goose 7990 6.6 5.9 112 7.4 7.5 99 Bone Springs Div 9350 12.0 11.2 107 12.0 11.0 109 Burgess Junction 7880 7.0 7.7 91 8.2 8.5 96 Dome Lake 8880 8.4 8.1 104 9.7 9.5 102 Little Goose 8870 7.0 -M * 9.4 -M * Sucker Creek 8880 7.9 8.3 95 8.1 10.0 81 Tie Creek 6870 4.1 4.1 100 8.0 7.9 101 ----- ----- Basin Index (%) 102 98 BELLE FOURCHE Cole Canyon 5910 3.0 4.7 64 4.8 6.8 71 ----- ----- Basin Index (%) 64 71 CHEYENNE RIVER BASIN Blind Park 6890 4.5 5.9 76 6.1 8.9 69 North Rapid Creek 6130 4.4 5.6 79 5.3 7.2 74 ----- ----- Basin Index (%) 77 71 UPPER N. PLATTE Arapaho Ridge 10960 21.5 15.5 139 21.9 16.7 131 Blackhall Mtn 9820 30.3 -M * 30.0 -M * Columbine 9160 21.6 18.4 117 23.6 19.3 122 Divide Peak 8880 15.9 14.8 107 18.1 16.1 112 Joe Wright 10120 16.5 15.4 107 23.4 18.8 124 Laprele Creek 8375 9.3 7.1 131 8.6 8.9 97 Med Bow 10500 30.6 -M * 27.9 -M * North French Creek 10130 19.9 19.7 101 21.1 19.9 106 Never Summer 10280 19.0 14.8 128 15.7 -M * Old Battle 10000 30.6 22.9 134 31.3 26.7 117 Rawah 9020 10.8 7.8 138 13.8 10.2 135 Sage Creek Basin 7850 12.9 10.4 124 13.1 11.3 116 Sand Lake 10050 22.9 19.6 117 21.3 17.9 119 South Brush Creek 8440 8.8 9.3 95 9.6 11.0 87 Tower 10500 35.9 34.4 104 37.4 30.2 124 Webber Springs 9250 24.5 17.6 139 28.0 20.1 139 Willow Creek Pass 9540 15.1 9.0 168 16.1 9.8 164 Zirkel 9340 35.0 21.9 160 36.2 22.3 162 ----- ----- Basin Index (%) 124 125 SWEETWATER Deer Park 9700 24.1 10.2 236 27.0 14.3 189 Larsen Creek 9000 17.2 8.9 193 19.6 -M * South Pass 9040 22.3 10.6 210 20.4 12.8 159 ----- ----- Basin Index (%) 214 175 LOWER N. PLATTE Casper Mtn. 7900 7.7 9.5 81 7.5 10.5 71 Laprele Creek 8375 9.3 7.1 131 8.6 8.9 97 Reno Hill 8400 8.7 9.3 94 9.2 10.5 88 Windy Peak 7900 7.3 5.4 135 7.8 7.4 105 ----- ----- Basin Index (%) 105 89 LARAMIE RIVER Brooklyn Lake 10240 19.5 14.4 135 17.6 15.2 116 Cinnabar Park 9574 15.1 16.2 93 17.8 19.0 94 Crow Creek 8330 3.6 6.6 55 6.2 7.5 83 Deadman Hill 10220 16.5 11.9 139 16.0 12.1 132 Rawah 9020 10.8 7.8 138 13.8 10.2 135 Roach 9700 14.1 12.0 118 16.7 13.9 120 ----- ----- Basin Index (%) 116 113 S. PLATTE Black Mountain 8920 7.7 -M * 8.8 -M * Crow Creek 8330 3.6 6.6 55 6.2 7.5 83 Deadman Hill 10220 16.5 11.9 139 16.0 12.1 132 ----- ----- Basin Index (%) 109 113 LITTLE SNAKE RIVER Battle Mountain 7440 8.8 9.0 98 13.1 11.6 113 Divide Peak 8880 15.9 14.8 107 18.1 16.1 112 Elk River 8700 17.1 14.2 120 16.9 15.2 111 Little Snake River 8915 27.0 18.9 143 32.5 24.2 134 Old Battle 10000 30.6 22.9 134 31.3 26.7 117 Sage Creek Basin 7850 12.9 10.4 124 13.1 11.3 116 Sandstone RS 8150 10.8 10.2 106 13.0 14.3 91 Whiskey Park 8950 22.8 20.0 114 24.4 21.3 115 ----- ----- Basin Index (%) 121 115 UPPER GREEN RIVER Big Sandy Opening 9080 18.3 9.4 195 20.3 9.9 205 Blind Bull Sum 8650 34.7 17.1 203 -M 15.2 * East Rim Divide 7930 16.3 7.5 217 18.1 9.0 201 Elkhart Park G.S. 9400 15.4 8.9 173 19.6 9.9 198 Gros Ventre Summit 8750 15.4 9.3 166 18.8 9.5 198 Gunsight Pass 9820 16.6 10.0 166 19.7 10.2 193 Kendall R.S. 7740 19.7 9.3 212 -M 11.0 * Loomis Park 8240 23.2 11.0 211 26.5 13.3 199 New Fork Lake 8340 14.4 7.7 187 14.4 8.2 176 Pocket Creek 9360 -M -M * -M -M * Snider Basin 8060 17.2 9.1 189 22.3 10.9 205 Spring Creek Divide 9000 30.6 17.2 178 29.7 18.3 162 Triple Peak 8500 30.8 16.0 192 32.1 19.0 169 ----- ----- Basin Index (%) 191 187 LOWER GREEN RIVER Blacks Fork Jct 8869 9.0 -M * 11.6 -M * Buck Pasture 9632 15.6 -M * 18.1 -M * EF Blacks Fork GS 9360 12.6 -M * 10.0 -M * Hams Fork 7840 14.8 8.7 170 16.5 8.7 190 Hewinta 9519 9.7 7.3 133 11.9 10.2 117 Hickerson Park 9145 6.7 5.3 126 7.0 7.1 99 Hole-in-Rock 9150 5.6 5.1 110 7.6 6.7 113 Indian Creek 9425 30.9 17.4 178 -M 16.8 * Kelley R.S. 8180 21.8 11.0 198 25.4 13.8 184 Spirit Lk 10235 11.8 -M * 13.0 -M * Steel Creek Park 10200 12.9 10.7 121 14.6 11.7 125 ----- ----- Basin Index (%) 156 143 UPPER BEAR RIVER Bear River RS 8777 10.7 -M * 13.3 -M * Bug Lake 7950 26.2 13.8 190 26.0 14.7 177 Burts Miller Ranch 8000 6.1 -M * 7.0 -M * Chalk Creek #1 8993 26.8 17.0 158 27.6 18.6 148 Hayden Fork 9212 18.4 11.4 161 -M 15.5 * Kelley R.S. 8180 21.8 11.0 198 25.4 13.8 184 Lily Lake 9156 12.5 9.6 130 14.7 12.6 117 Monte Cristo 8960 28.3 19.6 144 26.7 19.5 137 Salt River Summit 7760 17.9 10.0 179 23.6 12.8 184 ----- ----- Basin Index (%) 164 157 ----------------------------------------------------------------------------- -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.