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 FRIDAY: JANUARY 31 , 1997 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 22.6 12.4 182 27.0 16.1 168 COTTONWOOD CREEK 7600 22.8 13.9 164 25.1 17.1 147 GRANITE CREEK 6770 24.4 12.2 200 22.5 17.0 132 GRASSY LAKE 7265 35.3 22.7 156 38.0 26.1 146 GROS VENTRE SUMMIT 8775 17.7 10.5 169 13.3 11.5 116 LEWIS LAKE DIVIDE 7860 42.7 22.5 190 37.2 26.6 140 PHILLIPS BENCH 8200 31.8 19.2 166 27.7 21.1 131 SALT RIVER SUMMIT 7600 18.2 8.9 204 19.5 12.2 160 SNAKE RIVER STATION 6920 20.6 12.3 167 27.5 18.4 149 SPRING CREEK DIVIDE 9000 29.4 18.0 163 20.1 19.2 105 THUMB DIVIDE 7980 25.5 11.3 226 21.0 15.1 139 TOGWOTEE PASS 9580 26.7 16.7 160 21.8 19.9 110 TWO OCEAN PLATEAU 9360 34.5 18.1 191 29.0 22.3 130 WILLOW CREEK 8450 31.4 20.8 151 34.3 22.6 152 ----- ----- Basin wide percent of average 175 137 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 27.3 15.9 172 -M 12.0 * BLACK BEAR 7950 47.4 24.2 196 -M 26.2 * CANYON 7940 18.3 8.2 223 21.2 9.8 216 FISHER CREEK 9100 43.1 23.9 180 -M 24.3 * MADISON PLATEAU 7750 31.0 15.9 195 30.2 17.1 177 NORTHEAST ENTRANCE 7350 8.9 6.3 141 15.0 8.2 183 PARKER PEAK 9400 23.9 14.2 168 -M 10.4 * SYLVAN LAKE 8420 23.4 14.8 158 -M 13.1 * THUMB DIVIDE 7980 25.5 11.3 226 21.0 15.1 139 TWO OCEAN PLATEAU 9360 34.5 18.1 191 29.0 22.3 130 WHISKEY CREEK 6800 19.1 11.1 172 23.3 14.2 164 WHITE MILL 8700 29.4 16.6 177 -M 19.1 * WOLVERINE 7650 11.2 7.8 144 11.4 8.7 131 ----- ----- Basin wide percent of average 182 158 WIND RIVER BURROUGHS CREEK 8750 19.4 10.3 188 -M 11.2 * CHRISTINA LAKE 9980 17.4 10.1 172 19.5 10.8 181 COLD SPRINGS 9630 7.9 5.8 136 8.6 6.9 125 HOBBS PARK 10100 13.7 9.9 138 10.5 9.1 115 LITTLE WARM 9620 13.7 7.1 193 14.9 8.8 169 SOUTH PASS 9040 22.5 11.2 201 21.2 10.7 198 ST. LAWRENCE ALT 8620 6.0 4.8 125 7.1 6.3 113 TOGWOTEE PASS 9580 26.7 16.7 160 21.8 19.9 110 TOWNSEND CREEK 8700 8.1 6.1 133 9.4 7.7 122 ----- ----- Basin wide percent of average 165 141 BIGHORN BASIN BALD MTN. 9375 15.1 13.7 110 12.4 11.6 107 BEAR TRAP MEADOW 7900 5.7 4.8 119 6.6 5.4 122 BLACKWATER 9780 29.0 13.9 209 21.6 12.1 179 BONE SPRINGS DIV 9350 13.0 10.5 124 11.7 9.3 126 EVENING STAR 9200 31.3 17.7 177 -M 15.2 * GRAVE SPRINGS 8550 9.0 -M * 8.6 6.4 134 KIRWIN 9550 12.2 6.6 185 13.4 6.7 200 LOST CREEK 8080 10.6 8.0 132 11.3 7.6 149 MARQUETTE 8760 7.6 5.1 149 8.1 5.8 140 MIDDLE POWDER 7760 11.2 7.7 145 10.4 7.7 135 OWL CREEK 8975 5.5 2.8 196 4.7 3.8 124 POWDER RIVER PASS 9480 9.0 6.9 130 8.6 7.7 112 SHELL CREEK 9580 12.3 10.1 122 9.9 8.8 112 SYLVAN LAKE 8420 23.4 14.8 158 -M 13.1 * SYLVAN ROAD 8120 15.4 8.4 183 21.0 11.0 191 TIMBER CREEK 7950 4.4 3.6 122 4.8 4.2 114 YOUNTS PEAK 8350 18.1 12.1 150 -M 11.2 * ----- ----- Basin wide percent of average 153 142 SHOSHONE RIVER BLACKWATER 9780 29.0 13.9 209 21.6 12.1 179 EVENING STAR 9200 31.3 17.7 177 -M 15.2 * KIRWIN 9550 12.2 6.6 185 13.4 6.7 200 MARQUETTE 8760 7.6 5.1 149 8.1 5.8 140 SYLVAN LAKE 8420 23.4 14.8 158 -M 13.1 * SYLVAN ROAD 8120 15.4 8.4 183 21.0 11.0 191 YOUNTS PEAK 8350 18.1 12.1 150 -M 11.2 * ----- ----- Basin wide percent of average 174 180 POWDER-TONGUE BEAR TRAP MEADOW 7900 5.7 4.8 119 6.6 5.4 122 BONE SPRINGS DIV 9350 13.0 10.5 124 11.7 9.3 126 BURGESS JUNCTION 7880 9.0 7.5 120 9.4 7.1 132 CLOUD PEAK RESERVOIR 9860 13.1 7.9 166 10.5 8.0 131 DOME LAKE 8880 9.0 8.9 101 9.9 8.6 115 GRAVE SPRINGS 8550 9.0 -M * 8.6 6.4 134 HANSEN SAWMILL 8760 5.1 4.6 111 5.4 5.0 108 LOST CREEK 8080 10.6 8.0 132 11.3 7.6 149 MIDDLE POWDER 7760 11.2 7.7 145 10.4 7.7 135 POWDER RIVER PASS 9480 9.0 6.9 130 8.6 7.7 112 SUCKER CREEK 8880 10.1 7.4 136 10.3 8.5 121 TIE CREEK 6870 6.0 -M * 8.4 6.8 124 ----- ----- Basin wide percent of average 129 126 BELLE FOURCHE BLIND PARK 6890 7.8 7.1 110 12.1 6.1 198 NORTH RAPID CREEK 6130 8.3 -M * 10.8 -M * WARREN PEAK 6520 13.7 7.1 193 -M 5.2 * ----- ----- Basin wide percent of average 151 198* UPPER N. PLATTE RIVER COLUMBINE 9400 15.7 15.6 101 25.3 16.2 156 DIVIDE PEAK 8800 18.8 13.2 142 19.1 16.0 119 ELK RIVER 8700 21.9 12.4 177 20.4 12.4 165 JOE WRIGHT 10120 18.6 13.9 134 23.3 16.3 143 NORTH FRENCH CREEK 10100 26.0 15.9 164 23.7 15.0 158 OLD BATTLE 10000 33.4 20.3 165 28.9 19.2 151 SOUTH BRUSH CREEK 8400 12.5 7.0 179 13.7 10.7 128 TOWER 10500 46.2 29.7 156 34.6 23.9 145 WEBBER SPRINGS 9200 25.0 17.2 145 28.8 16.5 175 WILLOW CREEK PASS 9540 14.5 7.3 199 11.7 7.7 152 ----- ----- Basin wide percent of average 153 149 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 26.3 15.9 165 21.4 12.0 178 CASPER MTN. 7900 14.4 9.3 155 13.9 8.6 162 CHRISTINA LAKE 9980 17.4 10.1 172 19.5 10.8 181 DEADMAN HILL 10220 12.3 11.0 112 13.6 10.2 133 LAPRELE CREEK 8320 11.4 6.5 175 10.5 7.5 140 RENO HILL 8400 15.9 8.2 194 13.5 11.3 119 ROACH 9700 16.8 10.9 154 17.6 14.1 125 SAND LAKE 10080 28.0 21.0 133 22.2 12.9 172 SOUTH PASS 9040 22.5 11.2 201 21.2 10.7 198 WINDY PEAK 7840 7.6 4.5 169 8.9 5.8 153 ----- ----- Basin wide percent of average 159 156 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 13.2 7.2 183 14.5 10.8 134 DIVIDE PEAK 8800 18.8 13.2 142 19.1 16.0 119 OLD BATTLE 10000 33.4 20.3 165 28.9 19.2 151 SANDSTONE RS 8150 16.2 9.2 176 18.2 13.2 138 WHISKEY PARK 8950 29.5 18.2 162 26.6 19.7 135 ----- ----- Basin wide percent of average 163 136 UPPER GREEN RIVER BIG SANDY OPENING 9100 16.0 9.5 168 14.7 11.8 125 BLIND BULL SUM 8650 32.7 18.8 174 20.4 16.6 123 EAST RIM DIVIDE 7930 13.6 9.2 148 14.3 11.0 130 ELKHART PARK G.S. 9400 15.4 8.8 175 15.6 11.6 134 GROS VENTRE SUMMIT 8775 17.7 10.5 169 13.3 11.5 116 KENDALL R.S. 7740 19.4 9.8 198 17.7 11.2 158 LOOMIS PARK 8240 16.4 11.5 143 18.2 13.7 133 NEW FORK LAKE 8340 12.7 7.8 163 11.6 10.5 110 SNIDER BASIN 8250 19.0 9.8 194 16.4 11.0 149 SPRING CREEK DIVIDE 9000 29.4 18.0 163 20.1 19.2 105 TRIPLE PEAK 8500 27.7 17.2 161 30.2 22.5 134 ----- ----- Basin wide percent of average 168 128 LOWER GREEN RIVER HAMS FORK 7840 15.1 8.0 189 12.8 9.7 132 HEWINTA 9500 10.1 6.1 166 10.7 8.3 129 HICKERSON PARK 9150 4.9 3.5 140 6.8 6.0 113 HOLE-IN-ROCK 9150 5.9 3.2 184 7.0 6.0 117 INDIAN CREEK 9425 32.8 17.7 185 20.5 18.1 113 KELLEY R.S. 8180 20.7 10.6 195 23.8 13.6 175 STEEL CREEK PARK 10100 12.3 9.7 127 12.0 8.5 141 ----- ----- Basin wide percent of average 173 133 UPPER BEAR RIVER BUG LAKE 7950 26.4 12.8 206 25.4 12.7 200 HAYDEN FORK 9400 16.6 10.1 164 21.0 11.8 178 KELLEY R.S. 8180 20.7 10.6 195 23.8 13.6 175 LILY LAKE 9050 13.7 8.0 171 15.7 9.4 167 MONTE CRISTO 8960 33.6 17.1 196 28.0 16.4 171 SALT RIVER SUMMIT 7600 18.2 8.9 204 19.5 12.2 160 TRIAL LAKE 9960 30.6 15.7 195 30.3 15.1 201 ----- ----- Basin wide percent of average 192 179 ----------------------------------------------------------------------------- -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.