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: JANUARY 22 , 1997 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 18.7 11.1 168 23.2 14.7 158 COTTONWOOD CREEK 7600 20.6 12.5 165 22.4 15.6 144 GRANITE CREEK 6770 21.0 10.8 194 22.5 15.5 145 GRASSY LAKE 7265 -M 20.4 * -M 23.8 * GROS VENTRE SUMMIT 8775 15.6 9.5 164 13.1 10.4 126 LEWIS LAKE DIVIDE 7860 38.2 20.1 190 36.0 24.2 149 PHILLIPS BENCH 8200 28.0 17.0 165 27.8 19.0 146 SALT RIVER SUMMIT 7600 15.6 7.8 200 17.2 11.1 155 SNAKE RIVER STATION 6920 17.0 11.0 155 24.2 16.7 145 SPRING CREEK DIVIDE 9000 26.8 16.1 166 20.0 17.4 115 THUMB DIVIDE 7980 23.6 10.2 231 21.0 13.8 152 TOGWOTEE PASS 9580 24.0 15.1 159 21.7 18.1 120 TWO OCEAN PLATEAU 9360 31.3 16.5 190 29.0 20.2 144 WILLOW CREEK 8450 29.3 18.5 158 30.5 20.5 149 ----- ----- Basin wide percent of average 176 142 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 25.0 14.6 171 20.6 10.9 189 BLACK BEAR 7950 43.4 21.7 200 -M 23.5 * CANYON 7940 16.6 7.4 224 19.7 8.9 221 FISHER CREEK 9100 40.4 21.6 187 35.8 21.8 164 MADISON PLATEAU 7750 28.8 14.3 201 -M 15.5 * NORTHEAST ENTRANCE 7350 7.9 5.7 139 14.1 7.5 188 PARKER PEAK 9400 22.1 13.2 167 15.3 9.6 159 SYLVAN LAKE 8420 21.9 13.7 160 19.8 12.1 164 THUMB DIVIDE 7980 23.6 10.2 231 21.0 13.8 152 TWO OCEAN PLATEAU 9360 31.3 16.5 190 29.0 20.2 144 WHISKEY CREEK 6800 17.3 9.9 175 23.3 12.9 181 WHITE MILL 8700 27.3 15.2 180 -M 17.2 * WOLVERINE 7650 10.6 7.1 149 10.9 8.0 136 ----- ----- Basin wide percent of average 185 167 WIND RIVER BURROUGHS CREEK 8750 17.3 9.4 184 16.9 10.3 164 CHRISTINA LAKE 9980 14.7 9.4 156 17.1 10.1 169 COLD SPRINGS 9630 7.0 5.4 130 7.9 6.4 123 HOBBS PARK 10100 12.1 9.4 129 9.5 8.5 112 LITTLE WARM 9620 12.5 6.6 189 13.6 8.2 166 SOUTH PASS 9040 -M 10.4 * 18.6 9.9 188 ST. LAWRENCE ALT 8620 5.6 4.3 130 6.7 5.9 114 TOGWOTEE PASS 9580 24.0 15.1 159 21.7 18.1 120 TOWNSEND CREEK 8700 7.1 5.7 125 8.3 7.2 115 ----- ----- Basin wide percent of average 154 142 BIGHORN BASIN BALD MTN. 9375 14.3 12.7 113 11.6 10.7 108 BEAR TRAP MEADOW 7900 5.1 4.4 116 5.3 5.0 106 BLACKWATER 9780 25.9 12.8 202 19.1 11.1 172 BONE SPRINGS DIV 9350 11.8 9.8 120 10.7 8.6 124 EVENING STAR 9200 28.6 16.4 174 -M 13.8 * GRAVE SPRINGS 8550 8.5 -M * 8.2 6.0 137 KIRWIN 9550 10.8 6.2 174 12.0 6.3 190 LOST CREEK 8080 10.3 7.4 139 11.0 7.1 155 MARQUETTE 8760 7.0 4.7 149 7.5 5.4 139 MIDDLE POWDER 7760 10.9 7.2 151 10.0 7.2 139 OWL CREEK 8975 5.1 2.6 196 4.3 3.5 123 POWDER RIVER PASS 9480 7.4 6.4 116 8.1 7.1 114 SHELL CREEK 9580 11.3 9.4 120 8.8 8.1 109 SYLVAN LAKE 8420 21.9 13.7 160 19.8 12.1 164 SYLVAN ROAD 8120 13.7 7.6 180 19.6 10.1 194 TIMBER CREEK 7950 4.1 3.2 128 4.6 3.9 118 YOUNTS PEAK 8350 15.7 11.2 140 19.3 10.2 189 ----- ----- Basin wide percent of average 150 147 SHOSHONE RIVER BLACKWATER 9780 25.9 12.8 202 19.1 11.1 172 EVENING STAR 9200 28.6 16.4 174 -M 13.8 * KIRWIN 9550 10.8 6.2 174 12.0 6.3 190 MARQUETTE 8760 7.0 4.7 149 7.5 5.4 139 SYLVAN LAKE 8420 21.9 13.7 160 19.8 12.1 164 SYLVAN ROAD 8120 13.7 7.6 180 19.6 10.1 194 YOUNTS PEAK 8350 15.7 11.2 140 19.3 10.2 189 ----- ----- Basin wide percent of average 170 176 POWDER-TONGUE BEAR TRAP MEADOW 7900 5.1 4.4 116 5.3 5.0 106 BONE SPRINGS DIV 9350 11.8 9.8 120 10.7 8.6 124 BURGESS JUNCTION 7880 8.4 7.0 120 8.5 6.6 129 CLOUD PEAK RESERVOIR 9860 12.2 7.2 169 9.9 7.5 132 DOME LAKE 8880 8.0 8.2 98 8.9 8.1 110 GRAVE SPRINGS 8550 8.5 -M * 8.2 6.0 137 HANSEN SAWMILL 8760 4.6 4.2 110 5.3 4.6 115 LOST CREEK 8080 10.3 7.4 139 11.0 7.1 155 MIDDLE POWDER 7760 10.9 7.2 151 10.0 7.2 139 POWDER RIVER PASS 9480 7.4 6.4 116 8.1 7.1 114 SUCKER CREEK 8880 9.5 6.7 142 9.5 7.9 120 TIE CREEK 6870 5.5 -M * 7.8 6.3 124 ----- ----- Basin wide percent of average 129 126 BELLE FOURCHE BLIND PARK 6890 7.6 6.6 115 11.8 5.7 207 NORTH RAPID CREEK 6130 8.2 -M * 10.3 -M * WARREN PEAK 6520 13.1 6.6 198 -M 4.8 * ----- ----- Basin wide percent of average 157 207* UPPER N. PLATTE RIVER COLUMBINE 9400 15.8 14.0 113 23.0 14.6 158 DIVIDE PEAK 8800 17.4 12.2 143 17.5 14.7 119 ELK RIVER 8700 19.6 11.1 177 18.4 11.3 163 JOE WRIGHT 10120 17.2 12.9 133 21.3 14.9 143 NORTH FRENCH CREEK 10100 23.7 14.6 162 21.6 13.7 158 OLD BATTLE 10000 29.3 18.7 157 26.9 17.7 152 SOUTH BRUSH CREEK 8400 -M 6.4 * 12.9 10.4 124 TOWER 10500 -M 26.8 * 34.5 21.7 159 WEBBER SPRINGS 9200 21.9 15.8 139 25.7 15.5 166 WILLOW CREEK PASS 9540 13.3 6.8 196 10.6 7.3 145 ----- ----- Basin wide percent of average 149 150 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 23.5 14.8 159 -M 11.0 * CASPER MTN. 7900 13.3 8.7 153 12.9 8.1 159 CHRISTINA LAKE 9980 14.7 9.4 156 17.1 10.1 169 DEADMAN HILL 10220 10.7 10.2 105 12.1 9.4 129 LAPRELE CREEK 8320 10.3 6.0 172 9.7 6.8 143 RENO HILL 8400 11.6 7.7 151 12.7 10.9 117 ROACH 9700 15.2 10.0 152 15.8 12.9 122 SAND LAKE 10080 25.2 19.3 131 19.7 11.8 167 SOUTH PASS 9040 -M 10.4 * 18.6 9.9 188 WINDY PEAK 7840 6.7 4.0 168 8.1 5.3 153 ----- ----- Basin wide percent of average 146 149 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 11.9 6.6 180 13.6 9.8 139 DIVIDE PEAK 8800 17.4 12.2 143 17.5 14.7 119 OLD BATTLE 10000 29.3 18.7 157 26.9 17.7 152 SANDSTONE RS 8150 14.4 8.4 171 16.6 11.9 139 WHISKEY PARK 8950 24.9 16.7 149 20.4 17.4 117 ----- ----- Basin wide percent of average 156 133 UPPER GREEN RIVER BIG SANDY OPENING 9100 14.2 8.5 167 13.2 10.7 123 BLIND BULL SUM 8650 28.9 17.1 169 20.5 14.9 138 EAST RIM DIVIDE 7930 11.8 8.2 144 12.6 10.0 126 ELKHART PARK G.S. 9400 14.1 8.0 176 14.3 10.5 136 GROS VENTRE SUMMIT 8775 15.6 9.5 164 13.1 10.4 126 KENDALL R.S. 7740 17.3 8.8 197 17.7 10.2 174 LOOMIS PARK 8240 17.3 10.2 170 17.8 12.4 144 NEW FORK LAKE 8340 11.1 6.9 161 10.4 9.5 109 SNIDER BASIN 8250 16.2 8.7 186 14.3 10.0 143 SPRING CREEK DIVIDE 9000 26.8 16.1 166 20.0 17.4 115 TRIPLE PEAK 8500 24.7 15.4 160 26.6 20.4 130 ----- ----- Basin wide percent of average 169 132 LOWER GREEN RIVER HAMS FORK 7840 12.4 7.0 177 11.2 8.8 127 HEWINTA 9500 9.1 5.6 163 10.0 7.8 128 HICKERSON PARK 9150 4.8 3.2 150 6.5 5.6 116 HOLE-IN-ROCK 9150 5.9 2.9 203 6.9 5.6 123 INDIAN CREEK 9425 28.4 16.1 176 19.8 16.5 120 KELLEY R.S. 8180 18.0 9.5 189 21.5 12.3 175 STEEL CREEK PARK 10100 11.2 9.0 124 11.0 8.0 138 ----- ----- Basin wide percent of average 168 135 UPPER BEAR RIVER BUG LAKE 7950 21.9 11.7 187 22.0 11.7 188 HAYDEN FORK 9400 14.2 9.3 153 18.6 10.9 171 KELLEY R.S. 8180 18.0 9.5 189 21.5 12.3 175 LILY LAKE 9050 12.6 7.6 166 14.2 8.8 161 MONTE CRISTO 8960 29.0 15.5 187 24.3 15.1 161 SALT RIVER SUMMIT 7600 15.6 7.8 200 17.2 11.1 155 TRIAL LAKE 9960 25.1 14.5 173 -M 13.8 * ----- ----- Basin wide percent of average 180 169 ----------------------------------------------------------------------------- -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.