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: MAY 4 , 2017 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7030 19.3 7.8 247 42.2 23.1 183 Black Bear 8170 50.5 37.3 135 59.8 42.2 142 Blind Bull Sum 8650 48.8 22.8 214 39.0 21.6 181 Cottonwood Creek 7670 28.7 14.4 199 44.0 27.8 158 East Rim Divide 7930 8.6 7.7 112 22.5 13.1 172 Grand Targhee 9260 59.3 45.7 130 51.1 35.2 145 Granite Creek 6770 20.4 7.6 268 38.4 21.6 178 Grassy Lake 7265 39.8 27.9 143 61.5 39.7 155 Gros Ventre Summit 8750 20.4 11.1 184 26.6 14.9 179 Gunsight Pass 9820 26.2 12.0 218 28.2 16.3 173 Lewis Lake Divide 7850 48.1 29.6 162 59.8 39.0 153 Phillips Bench 8200 41.3 24.5 169 50.7 31.0 164 Salt River Summit 7760 16.9 7.4 228 32.0 18.6 172 Snake River Station 6920 12.9 5.6 230 39.3 25.0 157 Spring Creek Divide 9000 44.6 24.3 184 44.6 26.5 168 Thumb Divide 7980 19.1 10.8 177 30.5 21.3 143 Togwotee Pass 9580 36.9 24.7 149 43.1 27.7 156 Two Ocean Plateau 9240 -M 29.9 * -M 30.5 * Willow Creek 8380 29.4 22.0 134 57.6 38.1 151 Younts Peak 8350 21.7 15.8 137 33.7 18.0 187 ----- ----- Basin Index (%) 165 161 MADISON-GALLATIN Black Bear 8170 50.5 37.3 135 59.8 42.2 142 Canyon 7870 18.1 9.1 199 28.8 18.2 158 Madison Plateau 7750 30.1 20.9 144 40.0 29.2 137 West Yellowstone 6700 .0 .2 0* 26.0 16.2 160 Whiskey Creek 6800 12.0 13.3 90 29.8 22.6 132 ----- ----- Basin Index (%) 137 144 YELLOWSTONE Beartooth Lake 9360 36.3 22.7 160 31.6 22.2 142 Burnt Mtn 5880 .0 .0 * 18.5 16.2 114 Canyon 7870 18.1 9.1 199 28.8 18.2 158 Cole Creek 7850 17.2 16.7 103 14.3 16.7 86 Evening Star 9200 41.7 24.9 167 49.3 30.8 160 Fisher Creek 9100 48.3 32.7 148 52.5 35.5 148 Northeast Entrance 7350 .8 1.6 50 23.1 14.0 165 Parker Peak 9400 42.9 21.2 202 40.0 20.3 197 Sylvan Lake 8420 26.6 19.0 140 42.0 25.4 165 Thumb Divide 7980 19.1 10.8 177 30.5 21.3 143 Two Ocean Plateau 9240 -M 29.9 * -M 30.5 * White Mill 8700 40.4 24.0 168 40.0 26.6 150 Wolverine 7650 1.4 1.1 127 23.8 14.0 170 ----- ----- Basin Index (%) 159 151 WIND RIVER Burroughs Creek 8750 19.2 -M * 29.3 -M * Castle Creek 8400 5.9 -M * 17.3 -M * Cold Springs 9630 15.2 1.4 1086 22.3 12.7 176 Deer Park 9700 36.8 15.4 239 43.4 23.8 182 Hobbs Park 10100 34.8 16.0 218 34.5 17.0 203 Kirwin 9550 25.4 10.6 240 29.2 14.1 207 Little Warm 9370 19.0 8.1 235 27.2 15.6 174 Owl Creek 8975 7.8 .6 1300 15.3 8.1 189 South Pass 9040 33.8 14.1 240 33.7 20.7 163 St. Lawrence Alt 8620 8.8 2.0 440 20.6 11.8 175 Togwotee Pass 9580 36.9 24.7 149 43.1 27.7 156 Townsend Creek 8700 19.3 6.6 292 28.2 15.2 186 ----- ----- Basin Index (%) 239 178 BIGHORN BASIN Bald Mtn. 9380 24.7 20.4 121 21.5 20.0 108 Bear Trap Meadow 8200 6.6 .4 1650* 14.9 10.9 137 Bone Springs Div 9350 23.9 16.4 146 21.7 18.6 117 Grave Springs 8550 11.4 9.3 123 13.7 13.1 105 Kirwin 9550 25.4 10.6 240 29.2 14.1 207 Marquette 8760 20.4 -M * 23.8 -M * Middle Powder 7760 13.6 11.4 119 14.2 14.4 99 Owl Creek 8975 7.8 .6 1300 15.3 8.1 189 Powder River Pass 9480 11.8 9.1 130 18.1 15.4 118 Shell Creek 9580 20.4 16.0 128 18.3 16.6 110 Timber Creek 7950 7.3 2.5 292 15.1 10.2 148 ----- ----- Basin Index (%) 158 129 SHOSHONE RIVER Blackwater 9780 42.1 25.8 163 46.4 23.8 195 Evening Star 9200 41.7 24.9 167 49.3 30.8 160 Marquette 8760 20.4 -M * 23.8 -M * Sylvan Road 7120 .0 4.1 0 32.5 18.8 173 Younts Peak 8350 21.7 15.8 137 33.7 18.0 187 ----- ----- Basin Index (%) 149 177 POWDER RIVER Bear Trap Meadow 8200 6.6 .4 1650* 14.9 10.9 137 Cloud Peak Reservoir 9860 22.0 16.3 135 26.3 17.0 155 Grave Springs 8550 11.4 9.3 123 13.7 13.1 105 Hansen Sawmill 8360 15.4 1.7 906 18.9 11.1 170 Middle Powder 7760 13.6 11.4 119 14.2 14.4 99 Powder River Pass 9480 11.8 9.1 130 18.1 15.4 118 Soldier Park 8720 17.9 -M * 20.5 -M * ----- ----- Basin Index (%) 168 130 TONGUE RIVER Big Goose 7990 15.2 9.4 162 20.0 14.4 139 Bone Springs Div 9350 23.9 16.4 146 21.7 18.6 117 Burgess Junction 7880 13.4 11.8 114 15.8 15.1 105 Dome Lake 8880 19.7 11.3 174 22.0 16.7 132 Little Goose 8870 19.1 -M * 24.0 -M * Sucker Creek 8880 16.4 11.9 138 19.0 17.7 107 Tie Creek 6870 4.2 2.5 168 19.7 14.7 134 ----- ----- Basin Index (%) 147 122 BELLE FOURCHE Cole Canyon 5910 1.3 .0 * 12.0 12.4 97 ----- ----- Basin Index (%) * 97 CHEYENNE RIVER BASIN Blind Park 6890 .0 .2 0* 11.7 14.6 80 North Rapid Creek 6130 .0 .0 * 10.0 12.6 79 ----- ----- Basin Index (%) 0* 80 UPPER N. PLATTE Arapaho Ridge 10960 26.9 22.3 121 29.9 26.5 113 Blackhall Mtn 9820 37.1 -M * 42.1 -M * Columbine 9160 12.7 17.1 74 32.0 28.9 111 Divide Peak 8880 12.1 17.5 69 26.0 24.8 105 Joe Wright 10120 19.5 22.9 85 33.4 30.4 110 Laprele Creek 8375 6.0 5.4 111 15.0 15.3 98 Med Bow 10500 40.8 -M * 41.2 -M * North French Creek 10130 28.9 32.7 88 34.0 31.2 109 Never Summer 10280 25.4 21.8 117 22.6 -M * Old Battle 10000 40.4 34.8 116 43.1 39.7 109 Rawah 9020 5.8 4.8 121 20.6 17.6 117 Sage Creek Basin 7850 -M .8 * 18.0 16.4 110 Sand Lake 10050 33.5 31.6 106 32.2 29.5 109 South Brush Creek 8440 .3 7.9 4 15.5 18.2 85 Tower 10500 44.5 50.7 88 50.9 45.3 112 Webber Springs 9250 22.9 21.1 109 37.0 30.3 122 Willow Creek Pass 9540 19.3 14.5 133 20.5 16.0 128 Zirkel 9340 24.8 20.7 120 46.7 31.3 149 ----- ----- Basin Index (%) 99 113 SWEETWATER Deer Park 9700 36.8 15.4 239 43.4 23.8 182 Larsen Creek 9000 11.9 8.3 143 26.0 -M * South Pass 9040 33.8 14.1 240 33.7 20.7 163 ----- ----- Basin Index (%) 218 173 LOWER N. PLATTE Casper Mtn. 7900 12.9 12.5 103 18.7 18.4 102 Laprele Creek 8375 6.0 5.4 111 15.0 15.3 98 Reno Hill 8400 13.5 12.1 112 18.6 19.3 96 Windy Peak 7900 3.6 3.1 116 14.1 13.2 107 ----- ----- Basin Index (%) 109 100 LARAMIE RIVER Brooklyn Lake 10240 21.6 23.0 94 26.6 25.1 106 Cinnabar Park 9574 14.5 18.8 77 26.8 27.3 98 Crow Creek 8330 .0 .0 * 12.3 13.7 90 Deadman Hill 10220 22.8 19.1 119 24.9 21.0 119 Rawah 9020 5.8 4.8 121 20.6 17.6 117 Roach 9700 16.9 17.1 99 25.3 22.6 112 ----- ----- Basin Index (%) 99 107 S. PLATTE Black Mountain 8920 8.5 -M * 16.4 -M * Crow Creek 8330 .0 .0 * 12.3 13.7 90 Deadman Hill 10220 22.8 19.1 119 24.9 21.0 119 ----- ----- Basin Index (%) 119* 107 LITTLE SNAKE RIVER Battle Mountain 7440 .0 .0 * 19.4 17.4 111 Divide Peak 8880 12.1 17.5 69 26.0 24.8 105 Elk River 8700 5.2 12.0 43 23.3 23.1 101 Little Snake River 8915 23.5 21.7 108 43.4 33.2 131 Old Battle 10000 40.4 34.8 116 43.1 39.7 109 Sage Creek Basin 7850 -M .8 * 18.0 16.4 110 Sandstone RS 8150 -M 4.6 * 19.0 21.0 90 Whiskey Park 8950 24.6 26.9 91 35.3 32.0 110 ----- ----- Basin Index (%) 94 110 UPPER GREEN RIVER Big Sandy Opening 9080 22.3 9.4 237 25.8 15.5 166 Blind Bull Sum 8650 48.8 22.8 214 39.0 21.6 181 East Rim Divide 7930 8.6 7.7 112 22.5 13.1 172 Elkhart Park G.S. 9400 20.9 10.6 197 26.3 15.2 173 Gros Ventre Summit 8750 20.4 11.1 184 26.6 14.9 179 Gunsight Pass 9820 26.2 12.0 218 28.2 16.3 173 Kendall R.S. 7740 12.9 2.6 496 30.6 15.7 195 Loomis Park 8240 23.3 10.0 233 34.4 19.2 179 New Fork Lake 8340 11.2 5.5 204 19.6 12.3 159 Pocket Creek 9360 -M -M * -M -M * Snider Basin 8060 13.1 8.5 154 29.2 15.8 185 Spring Creek Divide 9000 44.6 24.3 184 44.6 26.5 168 Triple Peak 8500 36.4 16.3 223 44.9 28.2 159 ----- ----- Basin Index (%) 205 173 LOWER GREEN RIVER Blacks Fork Jct 8869 4.6 -M * 18.8 -M * Buck Pasture 9632 16.4 -M * 27.3 -M * EF Blacks Fork GS 9360 12.4 -M * 21.5 -M * Hams Fork 7840 8.5 1.5 567 23.8 13.3 179 Hewinta 9500 7.2 4.2 171 20.9 16.5 127 Hickerson Park 9122 2.8 3.2 88 14.9 12.2 122 Hole-in-Rock 9168 3.5 1.7 206 15.7 11.8 133 Indian Creek 9425 44.5 22.1 201 45.0 25.3 178 Kelley R.S. 8180 24.1 10.4 232 33.7 20.5 164 Spirit Lk 10235 15.6 -M * 20.9 -M * Steel Creek Park 10158 22.4 17.4 129 25.3 19.5 130 ----- ----- Basin Index (%) 187 151 UPPER BEAR RIVER Bear River RS 8777 .5 -M * 21.4 -M * Bug Lake 7987 32.1 13.8 233 37.6 22.0 171 Burts Miller Ranch 8000 .0 -M * 11.9 -M * Chalk Creek #1 9171 35.0 23.4 150 41.1 28.9 142 Hayden Fork 9130 14.2 8.6 165 33.4 24.1 139 Kelley R.S. 8180 24.1 10.4 232 33.7 20.5 164 Lily Lake 9133 12.4 9.7 128 23.0 19.9 116 Monte Cristo 8932 39.4 25.3 156 44.6 29.7 150 Salt River Summit 7760 16.9 7.4 228 32.0 18.6 172 ----- ----- Basin Index (%) 177 150 ----------------------------------------------------------------------------- -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.