Supercell over Laramie
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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: FEBRUARY 17 , 1997 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 25.7 14.3 180 27.5 18.5 149 COTTONWOOD CREEK 7600 25.2 16.7 151 26.4 20.2 131 GRANITE CREEK 6770 26.0 14.1 184 22.3 19.4 115 GRASSY LAKE 7265 39.8 29.8 134 38.6 29.9 129 GROS VENTRE SUMMIT 8775 18.6 11.9 156 17.5 13.1 134 LEWIS LAKE DIVIDE 7860 47.1 26.8 176 -M 30.4 * PHILLIPS BENCH 8200 34.7 22.3 156 -M 24.0 * SALT RIVER SUMMIT 7600 19.3 10.8 179 20.8 13.9 150 SNAKE RIVER STATION 6920 24.7 14.7 168 31.6 21.0 150 SPRING CREEK DIVIDE 9000 31.8 21.1 151 -M 22.1 * THUMB DIVIDE 7980 27.5 13.1 210 -M 17.3 * TOGWOTEE PASS 9580 29.3 19.2 153 -M 22.7 * TWO OCEAN PLATEAU 9360 37.6 20.7 182 -M 25.5 * WILLOW CREEK 8450 34.6 24.1 144 35.7 26.1 137 ----- ----- Basin wide percent of average 163 136 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 30.6 18.3 167 -M 13.8 * BLACK BEAR 7950 -M 28.8 * -M 30.6 * CANYON 7940 20.3 9.7 209 22.7 11.2 203 FISHER CREEK 9100 47.2 27.7 170 -M 28.1 * MADISON PLATEAU 7750 34.0 18.8 181 34.7 19.9 174 NORTHEAST ENTRANCE 7350 10.8 7.4 146 16.9 9.4 180 PARKER PEAK 9400 26.3 16.5 159 -M 12.0 * SYLVAN LAKE 8420 27.1 17.0 159 -M 15.0 * THUMB DIVIDE 7980 27.5 13.1 210 -M 17.3 * TWO OCEAN PLATEAU 9360 37.6 20.7 182 -M 25.5 * WHISKEY CREEK 6800 21.2 13.0 163 -M 16.5 * WHITE MILL 8700 32.6 19.6 166 -M 21.9 * WOLVERINE 7650 13.7 9.2 149 13.2 10.1 131 ----- ----- Basin wide percent of average 172 173* WIND RIVER BURROUGHS CREEK 8750 20.8 12.1 172 -M 12.8 * CHRISTINA LAKE 9980 17.9 11.7 153 19.5 12.3 159 COLD SPRINGS 9630 8.8 6.5 135 9.7 7.8 124 HOBBS PARK 10100 14.5 11.2 129 11.3 10.3 110 LITTLE WARM 9620 14.9 8.3 180 15.9 10.0 159 SOUTH PASS 9040 23.0 12.9 178 21.6 12.5 173 ST. LAWRENCE ALT 8620 7.5 5.6 134 8.9 7.3 122 TOGWOTEE PASS 9580 29.3 19.2 153 -M 22.7 * TOWNSEND CREEK 8700 8.7 7.2 121 9.7 8.9 109 ----- ----- Basin wide percent of average 154 140 BIGHORN BASIN BALD MTN. 9375 18.1 15.7 115 14.9 13.1 114 BEAR TRAP MEADOW 7900 6.5 5.5 118 7.2 5.9 122 BLACKWATER 9780 31.8 16.3 195 24.0 13.9 173 BONE SPRINGS DIV 9350 15.3 12.2 125 13.7 10.7 128 EVENING STAR 9200 35.6 20.7 172 -M 17.4 * GRAVE SPRINGS 8550 9.4 -M * 9.0 7.0 129 KIRWIN 9550 12.9 7.4 174 14.3 7.8 183 LOST CREEK 8080 11.8 9.5 124 12.1 8.6 141 MARQUETTE 8760 8.7 6.0 145 8.9 6.5 137 MIDDLE POWDER 7760 11.9 8.8 135 11.1 8.6 129 OWL CREEK 8975 6.3 3.3 191 5.3 4.4 120 POWDER RIVER PASS 9480 11.3 8.0 141 10.8 8.7 124 SHELL CREEK 9580 14.6 11.7 125 12.1 9.9 122 SYLVAN LAKE 8420 27.1 17.0 159 -M 15.0 * SYLVAN ROAD 8120 18.0 10.1 178 23.8 12.5 190 TIMBER CREEK 7950 5.5 4.4 125 6.1 4.7 130 YOUNTS PEAK 8350 19.9 13.7 145 -M 12.8 * ----- ----- Basin wide percent of average 150 142 SHOSHONE RIVER BLACKWATER 9780 31.8 16.3 195 24.0 13.9 173 EVENING STAR 9200 35.6 20.7 172 -M 17.4 * KIRWIN 9550 12.9 7.4 174 14.3 7.8 183 MARQUETTE 8760 8.7 6.0 145 8.9 6.5 137 SYLVAN LAKE 8420 27.1 17.0 159 -M 15.0 * SYLVAN ROAD 8120 18.0 10.1 178 23.8 12.5 190 YOUNTS PEAK 8350 19.9 13.7 145 -M 12.8 * ----- ----- Basin wide percent of average 169 174 POWDER-TONGUE BEAR TRAP MEADOW 7900 6.5 5.5 118 7.2 5.9 122 BONE SPRINGS DIV 9350 15.3 12.2 125 13.7 10.7 128 BURGESS JUNCTION 7880 10.3 8.8 117 10.6 8.0 132 CLOUD PEAK RESERVOIR 9860 14.3 9.8 146 11.6 9.4 123 DOME LAKE 8880 9.9 10.3 96 11.0 9.7 113 GRAVE SPRINGS 8550 9.4 -M * 9.0 7.0 129 HANSEN SAWMILL 8760 5.9 5.3 111 6.1 5.6 109 LOST CREEK 8080 11.8 9.5 124 12.1 8.6 141 MIDDLE POWDER 7760 11.9 8.8 135 11.1 8.6 129 POWDER RIVER PASS 9480 11.3 8.0 141 10.8 8.7 124 SUCKER CREEK 8880 11.7 8.8 133 11.7 9.7 121 TIE CREEK 6870 7.1 -M * 9.5 7.6 125 ----- ----- Basin wide percent of average 125 125 BELLE FOURCHE BLIND PARK 6890 9.3 8.3 112 13.4 7.0 191 NORTH RAPID CREEK 6130 9.9 -M * 12.1 -M * WARREN PEAK 6520 15.6 8.3 188 -M 5.8 * ----- ----- Basin wide percent of average 150 191* UPPER N. PLATTE RIVER COLUMBINE 9400 26.9 18.8 143 26.6 18.7 142 DIVIDE PEAK 8800 21.0 15.3 137 20.8 17.6 118 ELK RIVER 8700 24.6 15.1 163 21.9 14.2 154 JOE WRIGHT 10120 19.8 16.0 124 24.6 18.6 132 NORTH FRENCH CREEK 10100 30.3 18.5 164 25.3 17.3 146 OLD BATTLE 10000 33.9 23.8 142 28.3 22.3 127 SOUTH BRUSH CREEK 8400 13.6 8.4 162 15.3 12.0 128 TOWER 10500 48.5 34.3 141 36.0 27.5 131 WEBBER SPRINGS 9200 27.1 20.3 133 30.8 18.9 163 WILLOW CREEK PASS 9540 15.4 8.4 183 12.6 9.0 140 ----- ----- Basin wide percent of average 146 138 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 29.2 18.2 160 22.5 14.0 161 CASPER MTN. 7900 16.5 11.0 150 15.7 9.9 159 CHRISTINA LAKE 9980 17.9 11.7 153 19.5 12.3 159 DEADMAN HILL 10220 13.5 12.6 107 14.9 11.8 126 LAPRELE CREEK 8320 12.9 7.6 170 12.2 8.5 144 RENO HILL 8400 18.1 9.7 187 15.6 13.2 118 ROACH 9700 18.4 12.7 145 19.0 16.0 119 SAND LAKE 10080 31.0 24.5 127 24.6 15.0 164 SOUTH PASS 9040 23.0 12.9 178 21.6 12.5 173 WINDY PEAK 7840 8.7 5.4 161 10.2 6.6 155 ----- ----- Basin wide percent of average 150 147 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 15.4 8.7 177 16.0 11.9 134 DIVIDE PEAK 8800 21.0 15.3 137 20.8 17.6 118 OLD BATTLE 10000 33.9 23.8 142 28.3 22.3 127 SANDSTONE RS 8150 18.0 11.0 164 19.9 14.5 137 WHISKEY PARK 8950 33.6 21.4 157 28.3 21.4 132 ----- ----- Basin wide percent of average 152 129 UPPER GREEN RIVER BIG SANDY OPENING 9100 16.6 10.9 152 15.1 13.4 113 BLIND BULL SUM 8650 35.7 22.2 161 -M 19.2 * EAST RIM DIVIDE 7930 14.6 10.8 135 15.1 12.5 121 ELKHART PARK G.S. 9400 16.1 10.5 153 16.0 13.2 121 GROS VENTRE SUMMIT 8775 18.6 11.9 156 17.5 13.1 134 KENDALL R.S. 7740 20.7 11.4 182 17.6 12.8 138 LOOMIS PARK 8240 -M 13.6 * 19.5 15.5 126 NEW FORK LAKE 8340 13.1 9.0 146 12.0 11.9 101 SNIDER BASIN 8250 20.5 11.5 178 17.5 12.5 140 SPRING CREEK DIVIDE 9000 31.8 21.1 151 -M 22.1 * TRIPLE PEAK 8500 30.4 20.0 152 32.5 25.7 126 ----- ----- Basin wide percent of average 157 125 LOWER GREEN RIVER HAMS FORK 7840 15.4 9.6 160 13.4 11.0 122 HEWINTA 9500 11.1 7.5 148 11.7 9.4 124 HICKERSON PARK 9150 5.9 4.4 134 7.5 6.7 112 HOLE-IN-ROCK 9150 6.8 4.0 170 7.8 6.7 116 INDIAN CREEK 9425 34.9 20.9 167 -M 20.7 * KELLEY R.S. 8180 21.4 12.8 167 24.4 15.5 157 STEEL CREEK PARK 10100 13.4 11.1 121 13.1 9.6 136 ----- ----- Basin wide percent of average 155 132 UPPER BEAR RIVER BUG LAKE 7950 28.1 15.1 186 26.2 14.6 179 HAYDEN FORK 9400 17.8 12.2 146 22.3 13.8 162 KELLEY R.S. 8180 21.4 12.8 167 24.4 15.5 157 LILY LAKE 9050 15.1 9.7 156 16.6 10.8 154 MONTE CRISTO 8960 35.7 20.4 175 29.2 19.0 154 SALT RIVER SUMMIT 7600 19.3 10.8 179 20.8 13.9 150 TRIAL LAKE 9960 32.4 18.6 174 31.6 17.8 178 ----- ----- Basin wide percent of average 170 162 ----------------------------------------------------------------------------- -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.