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 WEDNESDAY: FEBRUARY 19 , 1997 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 25.6 14.6 175 27.5 18.7 147 COTTONWOOD CREEK 7600 25.7 17.0 151 27.0 20.5 132 GRANITE CREEK 6770 26.1 14.3 183 22.3 19.7 113 GRASSY LAKE 7265 40.0 29.7 135 38.6 30.3 127 GROS VENTRE SUMMIT 8775 18.6 12.0 155 17.5 13.3 132 LEWIS LAKE DIVIDE 7860 47.3 27.3 173 -M 30.8 * PHILLIPS BENCH 8200 35.0 22.6 155 -M 24.4 * SALT RIVER SUMMIT 7600 19.4 11.0 176 21.0 14.1 149 SNAKE RIVER STATION 6920 24.9 15.0 166 32.1 21.3 151 SPRING CREEK DIVIDE 9000 31.9 21.4 149 -M 22.4 * THUMB DIVIDE 7980 27.6 13.3 208 -M 17.6 * TOGWOTEE PASS 9580 29.3 19.4 151 -M 23.1 * TWO OCEAN PLATEAU 9360 37.8 20.9 181 -M 25.8 * WILLOW CREEK 8450 34.0 24.4 139 35.9 26.5 135 ----- ----- Basin wide percent of average 161 135 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 30.5 18.5 165 -M 14.0 * BLACK BEAR 7950 -M 29.3 * -M 31.1 * CANYON 7940 20.7 9.8 211 22.9 11.3 203 FISHER CREEK 9100 47.8 28.2 170 -M 28.5 * MADISON PLATEAU 7750 35.1 19.1 184 34.7 20.2 172 NORTHEAST ENTRANCE 7350 10.9 7.5 145 17.0 9.5 179 PARKER PEAK 9400 27.0 16.7 162 -M 12.2 * SYLVAN LAKE 8420 27.1 17.3 157 -M 15.2 * THUMB DIVIDE 7980 27.6 13.3 208 -M 17.6 * TWO OCEAN PLATEAU 9360 37.8 20.9 181 -M 25.8 * WHISKEY CREEK 6800 21.8 13.3 164 -M 16.7 * WHITE MILL 8700 33.0 19.8 167 -M 22.2 * WOLVERINE 7650 13.9 9.4 148 13.3 10.2 130 ----- ----- Basin wide percent of average 172 172* WIND RIVER BURROUGHS CREEK 8750 20.8 12.2 170 -M 13.0 * CHRISTINA LAKE 9980 17.8 11.8 151 19.5 12.4 157 COLD SPRINGS 9630 8.7 6.6 132 9.6 7.9 122 HOBBS PARK 10100 14.3 11.3 127 11.3 10.5 108 LITTLE WARM 9620 14.5 8.5 171 15.7 10.1 155 SOUTH PASS 9040 23.0 13.1 176 21.7 12.7 171 ST. LAWRENCE ALT 8620 7.5 5.7 132 8.9 7.4 120 TOGWOTEE PASS 9580 29.3 19.4 151 -M 23.1 * TOWNSEND CREEK 8700 8.4 7.4 114 9.6 9.1 105 ----- ----- Basin wide percent of average 150 137 BIGHORN BASIN BALD MTN. 9375 18.0 15.9 113 14.9 13.2 113 BEAR TRAP MEADOW 7900 6.4 5.5 116 6.5 6.0 108 BLACKWATER 9780 31.8 16.6 192 24.0 14.1 170 BONE SPRINGS DIV 9350 15.2 12.4 123 13.8 10.9 127 EVENING STAR 9200 35.3 21.0 168 -M 17.7 * GRAVE SPRINGS 8550 9.5 -M * 9.1 7.0 130 KIRWIN 9550 12.8 7.5 171 14.3 8.0 179 LOST CREEK 8080 12.0 9.7 124 12.2 8.7 140 MARQUETTE 8760 8.6 6.1 141 8.9 6.6 135 MIDDLE POWDER 7760 12.0 9.0 133 11.1 8.7 128 OWL CREEK 8975 6.3 3.3 191 5.2 4.5 116 POWDER RIVER PASS 9480 11.6 8.2 141 11.1 8.8 126 SHELL CREEK 9580 14.7 11.8 125 12.2 10.0 122 SYLVAN LAKE 8420 27.1 17.3 157 -M 15.2 * SYLVAN ROAD 8120 18.1 10.3 176 24.0 12.7 189 TIMBER CREEK 7950 5.4 4.5 120 6.1 4.8 127 YOUNTS PEAK 8350 19.9 13.9 143 -M 13.0 * ----- ----- Basin wide percent of average 148 140 SHOSHONE RIVER BLACKWATER 9780 31.8 16.6 192 24.0 14.1 170 EVENING STAR 9200 35.3 21.0 168 -M 17.7 * KIRWIN 9550 12.8 7.5 171 14.3 8.0 179 MARQUETTE 8760 8.6 6.1 141 8.9 6.6 135 SYLVAN LAKE 8420 27.1 17.3 157 -M 15.2 * SYLVAN ROAD 8120 18.1 10.3 176 24.0 12.7 189 YOUNTS PEAK 8350 19.9 13.9 143 -M 13.0 * ----- ----- Basin wide percent of average 166 172 POWDER-TONGUE BEAR TRAP MEADOW 7900 6.4 5.5 116 6.5 6.0 108 BONE SPRINGS DIV 9350 15.2 12.4 123 13.8 10.9 127 BURGESS JUNCTION 7880 10.2 8.9 115 10.3 8.1 127 CLOUD PEAK RESERVOIR 9860 14.5 10.0 145 11.9 9.5 125 DOME LAKE 8880 10.0 10.4 96 11.2 9.8 114 GRAVE SPRINGS 8550 9.5 -M * 9.1 7.0 130 HANSEN SAWMILL 8760 5.8 5.3 109 6.1 5.6 109 LOST CREEK 8080 12.0 9.7 124 12.2 8.7 140 MIDDLE POWDER 7760 12.0 9.0 133 11.1 8.7 128 POWDER RIVER PASS 9480 11.6 8.2 141 11.1 8.8 126 SUCKER CREEK 8880 11.7 9.0 130 11.5 9.8 117 TIE CREEK 6870 7.0 -M * 9.5 7.7 123 ----- ----- Basin wide percent of average 124 124 BELLE FOURCHE BLIND PARK 6890 9.2 8.5 108 13.3 7.1 187 NORTH RAPID CREEK 6130 9.8 -M * 11.8 -M * WARREN PEAK 6520 15.5 8.5 182 -M 5.8 * ----- ----- Basin wide percent of average 145 187* UPPER N. PLATTE RIVER COLUMBINE 9400 27.1 19.1 142 26.6 19.0 140 DIVIDE PEAK 8800 21.1 15.6 135 20.8 17.8 117 ELK RIVER 8700 24.9 15.3 163 22.5 14.4 156 JOE WRIGHT 10120 20.0 16.3 123 24.6 18.9 130 NORTH FRENCH CREEK 10100 30.5 18.8 162 25.4 17.5 145 OLD BATTLE 10000 33.9 24.2 140 28.3 22.7 125 SOUTH BRUSH CREEK 8400 13.7 8.5 161 15.4 12.1 127 TOWER 10500 49.1 34.8 141 36.1 27.9 129 WEBBER SPRINGS 9200 27.4 20.7 132 31.3 19.2 163 WILLOW CREEK PASS 9540 15.5 8.6 180 12.5 9.2 136 ----- ----- Basin wide percent of average 145 136 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 29.3 18.5 158 22.7 14.3 159 CASPER MTN. 7900 16.9 11.2 151 15.9 10.0 159 CHRISTINA LAKE 9980 17.8 11.8 151 19.5 12.4 157 DEADMAN HILL 10220 13.2 12.7 104 14.9 12.0 124 LAPRELE CREEK 8320 12.3 7.8 158 12.1 8.6 141 RENO HILL 8400 18.3 9.9 185 15.6 13.5 116 ROACH 9700 18.7 12.9 145 19.3 16.2 119 SAND LAKE 10080 31.3 24.9 126 24.7 15.2 163 SOUTH PASS 9040 23.0 13.1 176 21.7 12.7 171 WINDY PEAK 7840 8.8 5.6 157 10.0 6.7 149 ----- ----- Basin wide percent of average 148 145 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 15.3 8.9 172 16.0 12.0 133 DIVIDE PEAK 8800 21.1 15.6 135 20.8 17.8 117 OLD BATTLE 10000 33.9 24.2 140 28.3 22.7 125 SANDSTONE RS 8150 18.0 11.2 161 19.9 14.7 135 WHISKEY PARK 8950 33.8 21.7 156 28.8 21.6 133 ----- ----- Basin wide percent of average 150 128 UPPER GREEN RIVER BIG SANDY OPENING 9100 16.4 11.1 148 15.4 13.6 113 BLIND BULL SUM 8650 36.0 22.5 160 -M 19.5 * EAST RIM DIVIDE 7930 14.7 11.0 134 15.2 12.7 120 ELKHART PARK G.S. 9400 16.2 10.7 151 16.4 13.4 122 GROS VENTRE SUMMIT 8775 18.6 12.0 155 17.5 13.3 132 KENDALL R.S. 7740 20.8 11.6 179 17.4 13.0 134 LOOMIS PARK 8240 -M 13.8 * 19.6 15.7 125 NEW FORK LAKE 8340 12.9 9.2 140 11.9 12.1 98 SNIDER BASIN 8250 20.6 11.7 176 17.5 12.7 138 SPRING CREEK DIVIDE 9000 31.9 21.4 149 -M 22.4 * TRIPLE PEAK 8500 30.4 20.3 150 32.4 26.0 125 ----- ----- Basin wide percent of average 154 123 LOWER GREEN RIVER HAMS FORK 7840 15.5 9.7 160 13.4 11.2 120 HEWINTA 9500 11.0 7.6 145 12.0 9.6 125 HICKERSON PARK 9150 5.8 4.5 129 7.5 6.8 110 HOLE-IN-ROCK 9150 6.8 4.1 166 7.9 6.8 116 INDIAN CREEK 9425 34.8 21.3 163 -M 21.0 * KELLEY R.S. 8180 21.5 13.1 164 24.3 15.7 155 STEEL CREEK PARK 10100 13.5 11.4 118 13.1 9.7 135 ----- ----- Basin wide percent of average 152 131 UPPER BEAR RIVER BUG LAKE 7950 28.5 15.4 185 26.4 14.8 178 HAYDEN FORK 9400 17.9 12.5 143 22.4 14.0 160 KELLEY R.S. 8180 21.5 13.1 164 24.3 15.7 155 LILY LAKE 9050 15.2 9.8 155 16.9 10.9 155 MONTE CRISTO 8960 36.6 20.9 175 29.8 19.3 154 SALT RIVER SUMMIT 7600 19.4 11.0 176 21.0 14.1 149 TRIAL LAKE 9960 32.5 19.1 170 31.8 18.1 176 ----- ----- Basin wide percent of average 169 161 ----------------------------------------------------------------------------- -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.