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 SATURDAY: FEBRUARY 15 , 1997 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 25.4 14.1 180 27.5 18.2 151 COTTONWOOD CREEK 7600 25.0 16.4 152 26.1 19.8 132 GRANITE CREEK 6770 25.7 13.9 185 22.3 19.2 116 GRASSY LAKE 7265 39.5 29.8 133 38.1 29.5 129 GROS VENTRE SUMMIT 8775 18.5 11.7 158 13.7 12.9 106 LEWIS LAKE DIVIDE 7860 46.7 26.4 177 -M 30.0 * PHILLIPS BENCH 8200 34.6 22.0 157 -M 23.7 * SALT RIVER SUMMIT 7600 19.2 10.6 181 20.8 13.7 152 SNAKE RIVER STATION 6920 24.3 14.5 168 31.4 20.7 152 SPRING CREEK DIVIDE 9000 31.7 20.7 153 -M 21.8 * THUMB DIVIDE 7980 27.2 12.9 211 -M 17.1 * TOGWOTEE PASS 9580 29.0 18.9 153 -M 22.4 * TWO OCEAN PLATEAU 9360 37.4 20.4 183 -M 25.1 * WILLOW CREEK 8450 34.7 23.8 146 35.5 25.7 138 ----- ----- Basin wide percent of average 164 135 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 30.0 18.0 167 -M 13.6 * BLACK BEAR 7950 -M 28.3 * -M 30.1 * CANYON 7940 20.2 9.5 213 22.4 11.0 204 FISHER CREEK 9100 46.7 27.3 171 -M 27.7 * MADISON PLATEAU 7750 33.9 18.5 183 34.5 19.6 176 NORTHEAST ENTRANCE 7350 10.5 7.3 144 16.5 9.3 177 PARKER PEAK 9400 26.2 16.2 162 -M 11.8 * SYLVAN LAKE 8420 26.8 16.8 160 -M 14.8 * THUMB DIVIDE 7980 27.2 12.9 211 -M 17.1 * TWO OCEAN PLATEAU 9360 37.4 20.4 183 -M 25.1 * WHISKEY CREEK 6800 21.1 12.8 165 -M 16.2 * WHITE MILL 8700 32.2 19.3 167 -M 21.6 * WOLVERINE 7650 13.4 9.1 147 12.9 9.9 130 ----- ----- Basin wide percent of average 173 173* WIND RIVER BURROUGHS CREEK 8750 20.6 11.9 173 -M 12.7 * CHRISTINA LAKE 9980 17.7 11.5 154 19.5 12.1 161 COLD SPRINGS 9630 8.8 6.4 138 9.7 7.7 126 HOBBS PARK 10100 14.3 11.0 130 11.3 10.2 111 LITTLE WARM 9620 14.4 8.2 176 15.9 9.9 161 SOUTH PASS 9040 22.9 12.7 180 21.6 12.3 176 ST. LAWRENCE ALT 8620 7.5 5.5 136 8.9 7.2 124 TOGWOTEE PASS 9580 29.0 18.9 153 -M 22.4 * TOWNSEND CREEK 8700 8.5 7.1 120 9.7 8.8 110 ----- ----- Basin wide percent of average 154 142 BIGHORN BASIN BALD MTN. 9375 17.4 15.5 112 14.3 12.9 111 BEAR TRAP MEADOW 7900 6.3 5.4 117 7.1 5.9 120 BLACKWATER 9780 31.5 16.0 197 23.5 13.7 172 BONE SPRINGS DIV 9350 14.6 12.0 122 12.7 10.6 120 EVENING STAR 9200 34.9 20.4 171 -M 17.2 * GRAVE SPRINGS 8550 9.3 -M * 8.9 6.9 129 KIRWIN 9550 12.7 7.3 174 14.2 7.7 184 LOST CREEK 8080 11.6 9.3 125 12.0 8.5 141 MARQUETTE 8760 8.6 5.9 146 8.8 6.5 135 MIDDLE POWDER 7760 11.8 8.7 136 11.0 8.5 129 OWL CREEK 8975 6.3 3.2 197 5.4 4.4 123 POWDER RIVER PASS 9480 10.9 7.9 138 10.4 8.6 121 SHELL CREEK 9580 14.1 11.5 123 11.6 9.8 118 SYLVAN LAKE 8420 26.8 16.8 160 -M 14.8 * SYLVAN ROAD 8120 17.7 9.9 179 23.7 12.4 191 TIMBER CREEK 7950 5.5 4.3 128 6.1 4.7 130 YOUNTS PEAK 8350 19.7 13.5 146 -M 12.6 * ----- ----- Basin wide percent of average 149 140 SHOSHONE RIVER BLACKWATER 9780 31.5 16.0 197 23.5 13.7 172 EVENING STAR 9200 34.9 20.4 171 -M 17.2 * KIRWIN 9550 12.7 7.3 174 14.2 7.7 184 MARQUETTE 8760 8.6 5.9 146 8.8 6.5 135 SYLVAN LAKE 8420 26.8 16.8 160 -M 14.8 * SYLVAN ROAD 8120 17.7 9.9 179 23.7 12.4 191 YOUNTS PEAK 8350 19.7 13.5 146 -M 12.6 * ----- ----- Basin wide percent of average 169 174 POWDER-TONGUE BEAR TRAP MEADOW 7900 6.3 5.4 117 7.1 5.9 120 BONE SPRINGS DIV 9350 14.6 12.0 122 12.7 10.6 120 BURGESS JUNCTION 7880 9.7 8.6 113 9.9 7.9 125 CLOUD PEAK RESERVOIR 9860 13.8 9.6 144 11.2 9.2 122 DOME LAKE 8880 8.9 10.1 88 10.7 9.6 111 GRAVE SPRINGS 8550 9.3 -M * 8.9 6.9 129 HANSEN SAWMILL 8760 5.6 5.2 108 5.9 5.5 107 LOST CREEK 8080 11.6 9.3 125 12.0 8.5 141 MIDDLE POWDER 7760 11.8 8.7 136 11.0 8.5 129 POWDER RIVER PASS 9480 10.9 7.9 138 10.4 8.6 121 SUCKER CREEK 8880 11.2 8.7 129 11.1 9.6 116 TIE CREEK 6870 6.7 -M * 9.1 7.5 121 ----- ----- Basin wide percent of average 122 122 BELLE FOURCHE BLIND PARK 6890 8.9 8.2 109 12.9 6.9 187 NORTH RAPID CREEK 6130 9.4 -M * 11.7 -M * WARREN PEAK 6520 14.9 8.2 182 -M 5.7 * ----- ----- Basin wide percent of average 145 187* UPPER N. PLATTE RIVER COLUMBINE 9400 26.6 18.4 145 26.3 18.5 142 DIVIDE PEAK 8800 20.9 15.1 138 19.7 17.4 113 ELK RIVER 8700 24.0 14.8 162 21.1 14.0 151 JOE WRIGHT 10120 19.9 15.8 126 24.4 18.4 133 NORTH FRENCH CREEK 10100 29.4 18.2 162 25.2 17.0 148 OLD BATTLE 10000 33.9 23.4 145 28.1 22.0 128 SOUTH BRUSH CREEK 8400 13.5 8.2 165 15.2 11.8 129 TOWER 10500 48.0 33.8 142 34.9 27.1 129 WEBBER SPRINGS 9200 26.5 20.0 133 29.9 18.7 160 WILLOW CREEK PASS 9540 15.4 8.3 186 12.3 8.9 138 ----- ----- Basin wide percent of average 147 136 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 28.5 17.9 159 22.2 13.8 161 CASPER MTN. 7900 16.4 10.8 152 15.6 9.7 161 CHRISTINA LAKE 9980 17.7 11.5 154 19.5 12.1 161 DEADMAN HILL 10220 13.1 12.4 106 14.5 11.7 124 LAPRELE CREEK 8320 12.9 7.5 172 12.0 8.4 143 RENO HILL 8400 18.0 9.5 189 15.4 13.0 118 ROACH 9700 18.1 12.5 145 18.7 15.8 118 SAND LAKE 10080 30.4 24.1 126 23.6 14.8 159 SOUTH PASS 9040 22.9 12.7 180 21.6 12.3 176 WINDY PEAK 7840 8.7 5.3 164 9.9 6.5 152 ----- ----- Basin wide percent of average 150 146 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 15.2 8.5 179 15.7 11.8 133 DIVIDE PEAK 8800 20.9 15.1 138 19.7 17.4 113 OLD BATTLE 10000 33.9 23.4 145 28.1 22.0 128 SANDSTONE RS 8150 17.7 10.8 164 19.2 14.4 133 WHISKEY PARK 8950 32.6 21.0 155 27.6 21.3 130 ----- ----- Basin wide percent of average 153 127 UPPER GREEN RIVER BIG SANDY OPENING 9100 16.4 10.7 153 15.0 13.2 114 BLIND BULL SUM 8650 35.4 21.8 162 -M 18.9 * EAST RIM DIVIDE 7930 14.5 10.6 137 15.0 12.4 121 ELKHART PARK G.S. 9400 15.9 10.4 153 15.9 13.0 122 GROS VENTRE SUMMIT 8775 18.5 11.7 158 13.7 12.9 106 KENDALL R.S. 7740 20.5 11.2 183 17.6 12.6 140 LOOMIS PARK 8240 -M 13.4 * 19.4 15.3 127 NEW FORK LAKE 8340 13.0 8.9 146 11.9 11.8 101 SNIDER BASIN 8250 20.3 11.3 180 17.4 12.4 140 SPRING CREEK DIVIDE 9000 31.7 20.7 153 -M 21.8 * TRIPLE PEAK 8500 30.0 19.7 152 31.8 25.3 126 ----- ----- Basin wide percent of average 158 122 LOWER GREEN RIVER HAMS FORK 7840 15.6 9.4 166 13.4 10.9 123 HEWINTA 9500 11.1 7.3 152 11.7 9.3 126 HICKERSON PARK 9150 6.0 4.3 140 7.5 6.6 114 HOLE-IN-ROCK 9150 6.6 3.9 169 7.8 6.6 118 INDIAN CREEK 9425 34.6 20.6 168 -M 20.4 * KELLEY R.S. 8180 21.4 12.6 170 24.2 15.2 159 STEEL CREEK PARK 10100 13.4 10.9 123 13.0 9.5 137 ----- ----- Basin wide percent of average 158 134 UPPER BEAR RIVER BUG LAKE 7950 28.0 14.8 189 26.1 14.4 181 HAYDEN FORK 9400 17.6 12.0 147 22.2 13.6 163 KELLEY R.S. 8180 21.4 12.6 170 24.2 15.2 159 LILY LAKE 9050 15.2 9.5 160 16.7 10.6 158 MONTE CRISTO 8960 35.5 19.9 178 28.7 18.7 153 SALT RIVER SUMMIT 7600 19.2 10.6 181 20.8 13.7 152 TRIAL LAKE 9960 32.2 18.2 177 31.5 17.5 180 ----- ----- Basin wide percent of average 173 164 ----------------------------------------------------------------------------- -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.