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: MAY 23 , 2011 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 14.2 2.8 507 34.2 26.3 130 COTTONWOOD CREEK 7670 31.3 9.9 316 48.1 34.8 138 GRAND TARGHEE 9260 68.7 -M * -M -M * GRANITE CREEK 6770 16.7 4.6 363 33.0 24.2 136 GRASSY LAKE 7265 38.6 21.2 182 55.2 43.9 126 GROS VENTRE SUMMIT 8750 17.9 7.2 249 22.8 17.0 134 GUNSIGHT PASS 9820 -M -M * 26.6 -M * LEWIS LAKE DIVIDE 7850 47.9 24.3 197 49.3 44.4 111 PHILLIPS BENCH 8200 38.9 19.6 198 46.0 35.7 129 SALT RIVER SUMMIT 7760 11.7 1.0 1170* 28.3 23.4 121 SNAKE RIVER STATION 6920 -M 1.6 * 35.4 27.6 128 SPRING CREEK DIVIDE 9000 43.2 20.6 210 42.7 32.4 132 THUMB DIVIDE 7980 17.5 6.2 282 28.7 24.1 119 TOGWOTEE PASS 9580 41.3 25.5 162 44.0 31.7 139 TWO OCEAN PLATEAU 9240 -M 28.7 * 43.4 35.2 123 WILLOW CREEK 8380 42.2 20.6 205 56.0 41.4 135 ----- ----- Basin wide percent of average 221 128 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 33.3 23.8 140 34.6 26.1 133 BLACK BEAR 8170 52.2 32.7 160 58.8 49.1 120 CANYON 7870 15.1 4.0 378 25.1 19.7 127 FISHER CREEK 9100 53.3 33.7 158 54.2 45.4 119 MADISON PLATEAU 7750 30.2 14.9 203 41.6 33.2 125 NORTHEAST ENTRANCE 7350 3.8 1.2 317 21.9 16.8 130 PARKER PEAK 9400 38.3 22.1 173 38.5 22.2 173 SYLVAN LAKE 8420 27.1 16.5 164 39.0 27.7 141 THUMB DIVIDE 7980 17.5 6.2 282 28.7 24.1 119 TWO OCEAN PLATEAU 9240 -M 28.7 * 43.4 35.2 123 WHISKEY CREEK 6800 14.6 5.5 265 30.8 26.4 117 WHITE MILL 8700 36.3 22.1 164 39.2 34.1 115 WOLVERINE 7650 4.8 .9 533* 20.1 17.5 115 ----- ----- Basin wide percent of average 178 126 WIND RIVER BURROUGHS CREEK 8750 21.1 7.1 297 26.5 21.7 122 CASTLE CREEK 8400 .0 -M * 13.1 -M * COLD SPRINGS 9630 10.7 1.6 669 18.1 16.3 111 DEER PARK 9700 23.6 14.7 161 31.0 29.9 104 HOBBS PARK 10100 24.0 14.1 170 24.5 20.0 123 LITTLE WARM 9370 16.7 4.4 380 20.8 19.2 108 SOUTH PASS 9040 19.9 9.8 203 23.0 25.3 91 ST. LAWRENCE ALT 8620 3.6 1.4 257 17.4 14.4 121 TOGWOTEE PASS 9580 41.3 25.5 162 44.0 31.7 139 TOWNSEND CREEK 8700 8.3 3.3 252 20.0 18.0 111 ----- ----- Basin wide percent of average 207 115 BIGHORN BASIN BALD MTN. 9380 38.8 20.8 187 31.6 24.4 130 BEAR TRAP MEADOW 8200 10.0 .0 * 17.3 13.3 130 BLACKWATER 9780 39.8 28.1 142 38.5 27.7 139 BONE SPRINGS DIV 9350 32.2 13.0 248 27.7 21.3 130 EVENING STAR 9200 39.9 30.3 132 47.5 33.1 144 GRAVE SPRINGS 8550 14.3 3.2 447 18.7 15.4 121 KIRWIN 9550 18.7 8.8 213 22.5 16.6 136 MARQUETTE 8760 13.6 -M * 18.0 16.9 107 MIDDLE POWDER 7760 15.7 6.8 231 19.8 18.3 108 OWL CREEK 8975 3.7 1.2 308 12.7 10.3 123 POWDER RIVER PASS 9480 22.7 5.0 454 28.5 18.6 153 SHELL CREEK 9580 27.4 14.1 194 26.9 19.5 138 SYLVAN LAKE 8420 27.1 16.5 164 39.0 27.7 141 SYLVAN ROAD 7120 1.3 .5 260* 29.0 22.5 129 TIMBER CREEK 7950 4.3 1.2 358 14.0 13.4 104 YOUNTS PEAK 8350 21.9 11.9 184 24.2 21.1 115 ----- ----- Basin wide percent of average 197 130 SHOSHONE RIVER BLACKWATER 9780 39.8 28.1 142 38.5 27.7 139 EVENING STAR 9200 39.9 30.3 132 47.5 33.1 144 KIRWIN 9550 18.7 8.8 213 22.5 16.6 136 MARQUETTE 8760 13.6 -M * 18.0 16.9 107 SYLVAN LAKE 8420 27.1 16.5 164 39.0 27.7 141 SYLVAN ROAD 7120 1.3 .5 260* 29.0 22.5 129 YOUNTS PEAK 8350 21.9 11.9 184 24.2 21.1 115 ----- ----- Basin wide percent of average 155 132 POWDER-TONGUE BEAR TRAP MEADOW 8200 10.0 .0 * 17.3 13.3 130 BIG GOOSE 7990 14.4 6.9 209 21.3 15.6 137 BONE SPRINGS DIV 9350 32.2 13.0 248 27.7 21.3 130 BURGESS JUNCTION 7880 16.6 6.7 248 23.7 17.8 133 CLOUD PEAK RESERVOIR 9860 25.0 12.0 208 26.5 20.5 129 DOME LAKE 8880 20.7 6.8 304 24.3 19.7 123 GRAVE SPRINGS 8550 14.3 3.2 447 18.7 15.4 121 HANSEN SAWMILL 8360 9.0 .8 1125 16.6 13.2 126 LITTLE GOOSE 8870 18.5 -M * 25.8 -M * MIDDLE POWDER 7760 15.7 6.8 231 19.8 18.3 108 POWDER RIVER PASS 9480 22.7 5.0 454 28.5 18.6 153 SOLDIER PARK 8720 10.9 -M * 17.2 -M * SUCKER CREEK 8880 24.0 7.2 333 29.2 20.5 142 TIE CREEK 6870 5.3 .1 5300* 22.1 16.3 136 ----- ----- Basin wide percent of average 306 131 BELLE FOURCHE BLIND PARK 6890 .0 .0 100* 26.7 16.9 158 COLE CANYON 5910 .0 .0 100* 22.2 12.0 185 NORTH RAPID CREEK 6130 .0 .1 0* 21.7 13.3 163 ----- ----- Basin wide percent of average 0* 167 UPPER N. PLATTE RIVER CINNABAR PARK 9574 29.5 6.1 484 46.0 26.1 176 COLUMBINE 9160 -M 7.2 * 48.1 31.5 153 DIVIDE PEAK 8880 29.1 8.1 359 40.8 26.7 153 ELK RIVER 8700 -M 3.8 * 37.0 25.3 146 JOE WRIGHT 10120 51.9 21.4 243 -M 33.7 * NORTH FRENCH CREEK 10130 64.5 29.9 216 61.6 33.2 186 OLD BATTLE 10000 59.8 31.7 189 65.4 43.2 151 SAGE CREEK BASIN 7850 1.5 4.7 32 25.7 15.5 166 SOUTH BRUSH CREEK 8440 17.0 3.8 447 33.6 22.8 147 TOWER 10500 79.2 48.7 163 69.0 48.9 141 WEBBER SPRINGS 9250 34.2 12.5 274 50.0 33.9 147 WILLOW CREEK PASS 9540 -M 7.4 * 28.4 17.9 159 ----- ----- Basin wide percent of average 220 156 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 41.5 18.0 231 -M 30.2 * CASPER MTN. 7900 9.6 7.7 125 21.9 22.9 96 DEADMAN HILL 10220 32.2 15.4 209 34.3 23.8 144 DEER PARK 9700 23.6 14.7 161 31.0 29.9 104 LAPRELE CREEK 8375 8.6 2.0 430 21.1 19.2 110 RENO HILL 8400 16.3 6.3 259 26.1 23.7 110 ROACH 9700 26.6 9.7 274 35.0 25.4 138 SAND LAKE 10050 53.1 32.2 165 51.5 33.1 156 SOUTH PASS 9040 19.9 9.8 203 23.0 25.3 91 WINDY PEAK 7900 2.0 .7 286* 18.9 16.1 117 ----- ----- Basin wide percent of average 200 120 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 -M .0 * 24.8 20.4 122 DIVIDE PEAK 8880 29.1 8.1 359 40.8 26.7 153 OLD BATTLE 10000 59.8 31.7 189 65.4 43.2 151 SANDSTONE RS 8150 13.2 1.5 880 36.5 24.1 151 WHISKEY PARK 8950 -M 21.3 * 57.8 36.9 157 ----- ----- Basin wide percent of average 247 149 UPPER GREEN RIVER BIG SANDY OPENING 9080 13.9 5.6 248 21.3 17.9 119 BLIND BULL SUM 8650 43.4 22.1 196 31.2 27.3 114 EAST RIM DIVIDE 7930 3.2 5.8 55 18.8 15.5 121 ELKHART PARK G.S. 9400 15.1 6.7 225 19.3 18.2 106 GROS VENTRE SUMMIT 8750 17.9 7.2 249 22.8 17.0 134 GUNSIGHT PASS 9820 -M -M * 26.6 -M * KENDALL R.S. 7740 6.7 .0 * 22.4 18.1 124 LOOMIS PARK 8240 16.8 6.4 263 29.5 21.8 135 NEW FORK LAKE 8340 6.6 .8 825* 15.9 15.2 105 POCKET CREEK 9360 13.9 -M * 20.3 -M * SNIDER BASIN 8060 14.3 4.0 358 25.3 19.9 127 SPRING CREEK DIVIDE 9000 43.2 20.6 210 42.7 32.4 132 TRIPLE PEAK 8500 35.2 11.7 301 45.4 31.1 146 ----- ----- Basin wide percent of average 238 126 LOWER GREEN RIVER HAMS FORK 7840 4.5 .0 * 21.5 16.4 131 HEWINTA 9519 12.7 2.1 605 27.1 19.7 138 HICKERSON PARK 9145 .0 .6 0* 17.1 12.0 143 HOLE-IN-ROCK 9150 2.5 .5 500* 18.9 11.6 163 INDIAN CREEK 9425 37.8 19.9 190 36.2 31.7 114 KELLEY R.S. 8180 18.2 5.6 325 31.6 25.5 124 STEEL CREEK PARK 10200 28.4 15.7 181 31.5 22.4 141 ----- ----- Basin wide percent of average 234 132 UPPER BEAR RIVER BUG LAKE 7950 32.4 6.5 498 39.5 24.4 162 HAYDEN FORK 9212 19.8 4.1 483 41.2 27.6 149 KELLEY R.S. 8180 18.2 5.6 325 31.6 25.5 124 LILY LAKE 9156 23.6 3.7 638 32.7 23.3 140 MONTE CRISTO 8960 48.2 18.2 265 50.7 33.2 153 SALT RIVER SUMMIT 7760 11.7 1.0 1170* 28.3 23.4 121 TRIAL LAKE 9992 51.2 19.5 263 46.2 32.3 143 ----- ----- Basin wide percent of average 350 142 ----------------------------------------------------------------------------- -M = Missing data * = Data may not provide a valid measure of conditions. Units = inches for the Current and Average Snow Water Equivalent and Total Precipitation values If the Basin wide percent of average 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 Average represents the snow water equivalent found at selected SNOTEL sites in or near the basin compared to the average 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. Reference period for average conditions is 1971-2000. Provisional data, subject to revision. ---------------------------------------------------------------------------- -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.