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 20 , 1999 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 11.0 3.4 321 30.9 26.9 115 COTTONWOOD CREEK 7600 22.2 10.0 225 36.7 30.0 123 GRANITE CREEK 6770 11.5 5.8 202 27.9 28.7 97 GRASSY LAKE 7265 40.7 22.9 179 49.8 44.7 112 GROS VENTRE SUMMIT 8775 15.6 7.3 217 20.4 19.4 106 LEWIS LAKE DIVIDE 7860 38.9 26.9 146 46.2 45.4 102 PHILLIPS BENCH 8200 32.8 23.2 142 37.3 35.8 104 SALT RIVER SUMMIT 7600 9.0 .0 * 22.9 20.7 112 SNAKE RIVER STATION 6920 10.0 8.2 121 30.4 31.4 97 SPRING CREEK DIVIDE 9000 38.2 24.0 159 36.3 32.8 112 THUMB DIVIDE 7980 -M 8.0 * -M 25.2 * TOGWOTEE PASS 9580 -M 25.4 * 35.8 34.0 106 TWO OCEAN PLATEAU 9360 41.3 25.2 164 37.2 37.0 101 WILLOW CREEK 8450 33.0 25.4 131 48.9 38.7 127 ----- ----- Basin wide percent of average 163 109 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 28.4 23.4 122 28.2 23.7 120 BLACK BEAR 7950 57.2 34.3 167 55.4 49.2 113 CANYON 7940 12.4 5.1 242 22.9 17.9 128 FISHER CREEK 9100 41.8 35.8 117 43.9 45.3 98 MADISON PLATEAU 7750 -M 15.6 * 39.0 32.0 122 NORTHEAST ENTRANCE 7350 .2 1.9 6 17.9 15.5 115 PARKER PEAK 9400 27.0 21.5 126 -M 20.4 * SYLVAN LAKE 8420 24.7 18.7 133 33.9 24.9 137 THUMB DIVIDE 7980 -M 8.0 * -M 25.2 * TWO OCEAN PLATEAU 9360 41.3 25.2 164 37.2 37.0 101 WHISKEY CREEK 6800 17.9 7.1 251 30.2 26.7 114 WHITE MILL 8700 30.7 23.4 132 30.2 35.2 87 WOLVERINE 7650 .0 2.3 0 15.5 17.0 91 ----- ----- Basin wide percent of average 142 110 WIND RIVER BURROUGHS CREEK 8750 18.5 5.5 337 23.5 21.4 110 COLD SPRINGS 9630 17.5 2.2 834 24.9 15.0 166 DEER PARK 9700 26.9 -M * 34.2 -M * HOBBS PARK 10100 31.2 14.7 212 29.2 19.7 149 LITTLE WARM 9620 19.0 4.1 464 25.2 18.2 138 SOUTH PASS 9040 23.4 14.6 161 31.2 22.7 138 ST. LAWRENCE ALT 8620 10.6 1.9 589 21.7 14.0 155 TOGWOTEE PASS 9580 -M 25.4 * 35.8 34.0 106 TOWNSEND CREEK 8700 16.9 5.0 345 26.7 17.5 153 ----- ----- Basin wide percent of average 288 135 BIGHORN BASIN BALD MTN. 9375 26.4 22.7 117 26.2 23.7 111 BEAR TRAP MEADOW 7900 .9 1.0 81 18.2 12.7 143 BLACKWATER 9780 37.2 23.2 161 31.2 22.7 138 BONE SPRINGS DIV 9350 23.2 14.2 164 25.7 20.7 124 EVENING STAR 9200 36.9 28.9 128 41.2 28.4 145 GRAVE SPRINGS 8550 10.0 8.5 118 19.0 14.9 129 KIRWIN 9550 17.9 8.7 205 21.5 15.1 143 MARQUETTE 8760 19.2 6.6 290 21.9 16.0 138 MIDDLE POWDER 7760 16.4 10.7 154 23.0 16.9 137 OWL CREEK 8975 10.2 .9 1275 15.5 9.7 160 POWDER RIVER PASS 9480 12.9 4.8 267 22.9 16.9 136 SHELL CREEK 9580 19.9 15.4 131 21.4 18.4 117 SYLVAN LAKE 8420 24.7 18.7 133 33.9 24.9 137 SYLVAN ROAD 8120 -M 3.3 * -M 20.7 * TIMBER CREEK 7950 10.5 1.9 553 18.4 12.5 149 YOUNTS PEAK 8350 20.7 14.0 149 22.7 21.2 108 ----- ----- Basin wide percent of average 160 133 SHOSHONE RIVER BLACKWATER 9780 37.2 23.2 161 31.2 22.7 138 EVENING STAR 9200 36.9 28.9 128 41.2 28.4 145 KIRWIN 9550 17.9 8.7 205 21.5 15.1 143 MARQUETTE 8760 19.2 6.6 290 21.9 16.0 138 SYLVAN LAKE 8420 24.7 18.7 133 33.9 24.9 137 SYLVAN ROAD 8120 -M 3.3 * -M 20.7 * YOUNTS PEAK 8350 20.7 14.0 149 22.7 21.2 108 ----- ----- Basin wide percent of average 157 135 POWDER-TONGUE BEAR TRAP MEADOW 7900 .9 1.0 81 18.2 12.7 143 BIG GOOSE 7990 9.5 -M * 19.7 -M * BONE SPRINGS DIV 9350 23.2 14.2 164 25.7 20.7 124 BURGESS JUNCTION 7880 12.0 8.6 139 18.7 16.5 114 CLOUD PEAK RESERVOIR 9860 24.9 14.0 179 25.9 19.7 131 DOME LAKE 8880 -M 8.5 * 18.7 18.9 99 GRAVE SPRINGS 8550 10.0 8.5 118 19.0 14.9 129 HANSEN SAWMILL 8760 2.5 3.2 81 18.0 12.0 150 MIDDLE POWDER 7760 16.4 10.7 154 23.0 16.9 137 POWDER RIVER PASS 9480 12.9 4.8 267 22.9 16.9 136 SUCKER CREEK 8880 15.7 8.6 183 23.2 19.0 123 TIE CREEK 6870 3.4 -M * 19.4 15.9 123 ----- ----- Basin wide percent of average 161 127 BELLE FOURCHE BLIND PARK 6890 .2 3.3 4 20.4 16.5 124 NORTH RAPID CREEK 6130 .0 -M * 17.9 -M * WARREN PEAK 6520 .0 3.3 0 -M 12.2 * ----- ----- Basin wide percent of average 2 124* UPPER N. PLATTE RIVER COLUMBINE 9400 9.2 10.9 86 30.2 29.9 102 DIVIDE PEAK 8800 17.4 9.7 180 32.9 29.5 112 ELK RIVER 8700 7.0 6.1 114 29.9 23.7 127 JOE WRIGHT 10120 23.4 21.9 107 34.4 33.3 104 NORTH FRENCH CREEK 10100 41.9 24.9 169 40.3 30.7 131 OLD BATTLE 10000 40.4 33.3 122 48.7 38.2 128 SOUTH BRUSH CREEK 8400 9.5 4.5 212 27.4 22.4 123 TOWER 10500 -M 49.0 * -M 47.2 * WEBBER SPRINGS 9200 18.5 17.7 106 35.3 32.7 108 WILLOW CREEK PASS 9540 13.0 8.4 157 16.9 17.2 99 ----- ----- Basin wide percent of average 132 115 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 26.7 21.4 125 33.0 25.9 128 CASPER MTN. 7900 8.5 9.0 94 23.9 21.4 112 DEADMAN HILL 10220 20.7 16.2 128 24.9 23.4 107 DEER PARK 9700 26.9 -M * 34.2 -M * LAPRELE CREEK 8320 .0 2.8 0 21.7 16.9 129 RENO HILL 8400 10.1 7.0 145 27.2 23.7 115 ROACH 9700 -M 13.5 * 26.9 28.5 95 SAND LAKE 10080 46.3 32.3 144 39.4 27.2 146 SOUTH PASS 9040 23.4 14.6 161 31.2 22.7 138 WINDY PEAK 7840 .0 2.5 0 19.2 14.5 133 ----- ----- Basin wide percent of average 129 122 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .3 .0 * 24.2 20.0 121 DIVIDE PEAK 8800 17.4 9.7 180 32.9 29.5 112 OLD BATTLE 10000 40.4 33.3 122 48.7 38.2 128 SANDSTONE RS 8150 .0 1.7 0 27.0 24.9 109 WHISKEY PARK 8950 29.9 21.4 140 39.5 36.8 108 ----- ----- Basin wide percent of average 133 116 UPPER GREEN RIVER BIG SANDY OPENING 9100 13.0 7.0 186 19.7 19.9 100 BLIND BULL SUM 8650 33.3 20.7 161 28.7 28.5 101 EAST RIM DIVIDE 7930 13.5 11.1 121 18.4 18.5 100 ELKHART PARK G.S. 9400 15.1 8.4 182 19.9 19.5 102 GROS VENTRE SUMMIT 8775 15.6 7.3 217 20.4 19.4 106 KENDALL R.S. 7740 7.1 .0 * 20.5 18.9 109 LOOMIS PARK 8240 -M 8.0 * 25.4 22.9 111 NEW FORK LAKE 8340 8.5 4.5 194 16.7 17.7 95 SNIDER BASIN 8250 14.2 6.0 237 23.2 18.5 125 SPRING CREEK DIVIDE 9000 38.2 24.0 159 36.3 32.8 112 TRIPLE PEAK 8500 29.2 19.4 151 39.3 37.4 105 ----- ----- Basin wide percent of average 167 106 LOWER GREEN RIVER HAMS FORK 7840 1.2 .0 * 18.4 16.4 113 HEWINTA 9500 11.0 .0 * 20.5 18.0 114 HICKERSON PARK 9150 1.7 .5 340* 15.5 14.1 110 HOLE-IN-ROCK 9150 5.0 .5 1250* 16.0 14.1 113 INDIAN CREEK 9425 37.4 22.7 165 34.8 31.2 112 KELLEY R.S. 8180 13.1 7.1 185 24.7 22.9 108 STEEL CREEK PARK 10100 23.5 15.4 154 24.7 18.4 134 ----- ----- Basin wide percent of average 176* 115 UPPER BEAR RIVER BUG LAKE 7950 20.7 8.0 261 29.7 24.2 123 HAYDEN FORK 9400 11.9 .5 2361* 29.4 25.0 118 KELLEY R.S. 8180 13.1 7.1 185 24.7 22.9 108 LILY LAKE 9050 10.9 4.5 246 25.5 20.0 128 MONTE CRISTO 8960 40.3 18.4 220 38.5 32.4 119 SALT RIVER SUMMIT 7600 9.0 .0 * 22.9 20.7 112 TRIAL LAKE 9960 27.4 18.4 149 31.7 30.4 104 ----- ----- Basin wide percent of average 219 116 ----------------------------------------------------------------------------- -M = Missing data * = Data may not provide a valid measure of conditions. 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 1961-90. 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.