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 THURSDAY: FEBRUARY 13 , 1997 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 24.7 13.9 178 27.4 17.9 153 COTTONWOOD CREEK 7600 24.5 16.1 152 26.0 19.4 134 GRANITE CREEK 6770 25.2 13.7 184 22.3 18.9 118 GRASSY LAKE 7265 38.1 28.8 132 38.1 29.0 131 GROS VENTRE SUMMIT 8775 18.3 11.5 159 13.3 12.7 105 LEWIS LAKE DIVIDE 7860 45.6 25.9 176 -M 29.5 * PHILLIPS BENCH 8200 34.0 21.6 157 -M 23.4 * SALT RIVER SUMMIT 7600 18.8 10.4 181 20.5 13.5 152 SNAKE RIVER STATION 6920 23.5 14.2 165 30.7 20.4 150 SPRING CREEK DIVIDE 9000 31.2 20.3 154 20.1 21.4 94 THUMB DIVIDE 7980 27.0 12.7 213 21.2 16.8 126 TOGWOTEE PASS 9580 28.3 18.6 152 21.8 22.1 99 TWO OCEAN PLATEAU 9360 36.8 20.1 183 29.0 24.7 117 WILLOW CREEK 8450 33.7 23.4 144 35.3 25.3 140 ----- ----- Basin wide percent of average 163 126 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 29.0 17.7 164 -M 13.4 * BLACK BEAR 7950 -M 27.8 * -M 29.6 * CANYON 7940 19.9 9.3 214 22.3 10.8 206 FISHER CREEK 9100 45.7 26.9 170 -M 27.2 * MADISON PLATEAU 7750 33.1 18.2 182 34.3 19.2 179 NORTHEAST ENTRANCE 7350 10.2 7.2 142 16.4 9.1 180 PARKER PEAK 9400 25.8 15.9 162 -M 11.6 * SYLVAN LAKE 8420 26.2 16.5 159 -M 14.5 * THUMB DIVIDE 7980 27.0 12.7 213 21.2 16.8 126 TWO OCEAN PLATEAU 9360 36.8 20.1 183 29.0 24.7 117 WHISKEY CREEK 6800 20.4 12.6 162 -M 15.9 * WHITE MILL 8700 31.3 18.9 166 -M 21.2 * WOLVERINE 7650 12.7 8.9 143 12.7 9.7 131 ----- ----- Basin wide percent of average 172 150* WIND RIVER BURROUGHS CREEK 8750 20.3 11.7 174 -M 12.5 * CHRISTINA LAKE 9980 17.6 11.3 156 19.5 11.9 164 COLD SPRINGS 9630 8.5 6.3 135 9.6 7.5 128 HOBBS PARK 10100 14.0 10.9 128 11.2 10.1 111 LITTLE WARM 9620 14.0 8.1 173 15.6 9.7 161 SOUTH PASS 9040 22.8 12.5 182 21.6 12.1 179 ST. LAWRENCE ALT 8620 7.5 5.4 139 8.9 7.0 127 TOGWOTEE PASS 9580 28.3 18.6 152 21.8 22.1 99 TOWNSEND CREEK 8700 8.2 7.0 117 9.6 8.7 110 ----- ----- Basin wide percent of average 154 132 BIGHORN BASIN BALD MTN. 9375 16.1 15.3 105 13.3 12.7 105 BEAR TRAP MEADOW 7900 6.1 5.3 115 6.3 5.8 109 BLACKWATER 9780 30.9 15.7 197 23.0 13.5 170 BONE SPRINGS DIV 9350 13.6 11.8 115 12.5 10.4 120 EVENING STAR 9200 33.9 20.0 170 -M 16.9 * GRAVE SPRINGS 8550 9.2 -M * 8.9 6.8 131 KIRWIN 9550 12.5 7.2 174 14.2 7.6 187 LOST CREEK 8080 11.5 9.1 126 12.0 8.4 143 MARQUETTE 8760 8.4 5.8 145 8.8 6.4 138 MIDDLE POWDER 7760 11.8 8.6 137 11.0 8.4 131 OWL CREEK 8975 6.1 3.1 197 5.1 4.3 119 POWDER RIVER PASS 9480 10.4 7.8 133 10.2 8.5 120 SHELL CREEK 9580 13.3 11.3 118 11.0 9.6 115 SYLVAN LAKE 8420 26.2 16.5 159 -M 14.5 * SYLVAN ROAD 8120 17.1 9.7 176 23.1 12.2 189 TIMBER CREEK 7950 5.5 4.2 131 6.1 4.6 133 YOUNTS PEAK 8350 19.3 13.3 145 -M 12.4 * ----- ----- Basin wide percent of average 147 139 SHOSHONE RIVER BLACKWATER 9780 30.9 15.7 197 23.0 13.5 170 EVENING STAR 9200 33.9 20.0 170 -M 16.9 * KIRWIN 9550 12.5 7.2 174 14.2 7.6 187 MARQUETTE 8760 8.4 5.8 145 8.8 6.4 138 SYLVAN LAKE 8420 26.2 16.5 159 -M 14.5 * SYLVAN ROAD 8120 17.1 9.7 176 23.1 12.2 189 YOUNTS PEAK 8350 19.3 13.3 145 -M 12.4 * ----- ----- Basin wide percent of average 168 174 POWDER-TONGUE BEAR TRAP MEADOW 7900 6.1 5.3 115 6.3 5.8 109 BONE SPRINGS DIV 9350 13.6 11.8 115 12.5 10.4 120 BURGESS JUNCTION 7880 9.2 8.5 108 9.4 7.7 122 CLOUD PEAK RESERVOIR 9860 13.5 9.4 144 11.1 9.0 123 DOME LAKE 8880 9.3 9.9 94 10.6 9.4 113 GRAVE SPRINGS 8550 9.2 -M * 8.9 6.8 131 HANSEN SAWMILL 8760 5.5 5.1 108 5.9 5.4 109 LOST CREEK 8080 11.5 9.1 126 12.0 8.4 143 MIDDLE POWDER 7760 11.8 8.6 137 11.0 8.4 131 POWDER RIVER PASS 9480 10.4 7.8 133 10.2 8.5 120 SUCKER CREEK 8880 10.8 8.5 127 10.6 9.4 113 TIE CREEK 6870 6.3 -M * 8.6 7.4 116 ----- ----- Basin wide percent of average 121 121 BELLE FOURCHE BLIND PARK 6890 8.6 8.1 106 12.8 6.7 191 NORTH RAPID CREEK 6130 9.2 -M * 11.6 -M * WARREN PEAK 6520 14.6 8.1 180 -M 5.6 * ----- ----- Basin wide percent of average 143 191* UPPER N. PLATTE RIVER COLUMBINE 9400 26.3 18.0 146 26.3 18.2 145 DIVIDE PEAK 8800 20.3 14.8 137 19.5 17.2 113 ELK RIVER 8700 23.4 14.5 161 20.9 13.8 151 JOE WRIGHT 10120 19.8 15.5 128 24.1 18.1 133 NORTH FRENCH CREEK 10100 28.2 17.9 158 25.1 16.7 150 OLD BATTLE 10000 33.9 23.0 147 28.1 21.6 130 SOUTH BRUSH CREEK 8400 13.4 8.0 168 15.0 11.6 129 TOWER 10500 47.5 33.3 143 34.9 26.6 131 WEBBER SPRINGS 9200 26.2 19.6 134 29.8 18.4 162 WILLOW CREEK PASS 9540 15.4 8.2 188 12.3 8.7 141 ----- ----- Basin wide percent of average 147 138 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 28.2 17.6 160 22.1 13.6 163 CASPER MTN. 7900 16.3 10.6 154 15.6 9.5 164 CHRISTINA LAKE 9980 17.6 11.3 156 19.5 11.9 164 DEADMAN HILL 10220 12.7 12.2 104 14.3 11.5 124 LAPRELE CREEK 8320 12.6 7.4 170 12.0 8.2 146 RENO HILL 8400 18.0 9.3 194 15.3 12.8 120 ROACH 9700 17.9 12.3 146 18.4 15.5 119 SAND LAKE 10080 29.9 23.7 126 23.5 14.5 162 SOUTH PASS 9040 22.8 12.5 182 21.6 12.1 179 WINDY PEAK 7840 8.6 5.2 165 9.8 6.4 153 ----- ----- Basin wide percent of average 151 148 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 14.5 8.3 175 15.6 11.6 134 DIVIDE PEAK 8800 20.3 14.8 137 19.5 17.2 113 OLD BATTLE 10000 33.9 23.0 147 28.1 21.6 130 SANDSTONE RS 8150 17.1 10.6 161 19.1 14.2 135 WHISKEY PARK 8950 31.8 20.6 154 27.5 21.1 130 ----- ----- Basin wide percent of average 152 128 UPPER GREEN RIVER BIG SANDY OPENING 9100 15.9 10.5 151 15.0 13.0 115 BLIND BULL SUM 8650 34.7 21.4 162 -M 18.6 * EAST RIM DIVIDE 7930 14.3 10.4 138 14.9 12.2 122 ELKHART PARK G.S. 9400 15.7 10.2 154 15.9 12.8 124 GROS VENTRE SUMMIT 8775 18.3 11.5 159 13.3 12.7 105 KENDALL R.S. 7740 20.2 11.0 184 17.4 12.4 140 LOOMIS PARK 8240 -M 13.1 * 19.1 15.1 126 NEW FORK LAKE 8340 12.7 8.8 144 11.8 11.6 102 SNIDER BASIN 8250 20.0 11.1 180 17.2 12.2 141 SPRING CREEK DIVIDE 9000 31.2 20.3 154 20.1 21.4 94 TRIPLE PEAK 8500 29.5 19.4 152 31.3 24.9 126 ----- ----- Basin wide percent of average 158 119 LOWER GREEN RIVER HAMS FORK 7840 14.9 9.2 162 13.2 10.7 123 HEWINTA 9500 11.0 7.1 155 11.7 9.2 127 HICKERSON PARK 9150 5.8 4.2 138 7.5 6.5 115 HOLE-IN-ROCK 9150 6.5 3.8 171 7.8 6.5 120 INDIAN CREEK 9425 34.1 20.2 169 -M 20.1 * KELLEY R.S. 8180 21.2 12.3 172 24.2 15.0 161 STEEL CREEK PARK 10100 13.2 10.7 123 12.9 9.3 139 ----- ----- Basin wide percent of average 158 135 UPPER BEAR RIVER BUG LAKE 7950 27.8 14.5 192 26.0 14.1 184 HAYDEN FORK 9400 17.6 11.7 150 22.1 13.3 166 KELLEY R.S. 8180 21.2 12.3 172 24.2 15.0 161 LILY LAKE 9050 15.2 9.3 163 16.6 10.4 160 MONTE CRISTO 8960 35.4 19.5 182 28.5 18.3 156 SALT RIVER SUMMIT 7600 18.8 10.4 181 20.5 13.5 152 TRIAL LAKE 9960 32.1 17.9 179 31.6 17.1 185 ----- ----- Basin wide percent of average 176 167 ----------------------------------------------------------------------------- -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.