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 17 , 1997 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 18.5 10.4 178 23.1 13.8 167 COTTONWOOD CREEK 7600 20.3 11.8 172 22.4 14.7 152 GRANITE CREEK 6770 20.3 10.1 201 22.5 14.6 154 GRASSY LAKE 7265 -M 19.0 * -M 22.4 * GROS VENTRE SUMMIT 8775 15.2 8.9 171 12.9 9.9 130 LEWIS LAKE DIVIDE 7860 35.9 18.7 192 35.6 22.8 156 PHILLIPS BENCH 8200 27.5 15.8 174 27.7 17.9 155 SALT RIVER SUMMIT 7600 15.1 7.2 210 16.6 10.5 158 SNAKE RIVER STATION 6920 16.2 10.3 157 -M 15.8 * SPRING CREEK DIVIDE 9000 25.4 15.1 168 20.0 16.4 122 THUMB DIVIDE 7980 22.8 9.5 240 21.0 13.0 162 TOGWOTEE PASS 9580 23.1 14.3 162 21.6 17.1 126 TWO OCEAN PLATEAU 9360 30.7 15.7 196 28.8 19.1 151 WILLOW CREEK 8450 29.0 17.3 168 29.6 19.3 153 ----- ----- Basin wide percent of average 182 149 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 24.4 14.0 174 20.0 10.4 192 BLACK BEAR 7950 45.8 20.4 225 -M 22.0 * CANYON 7940 16.2 7.0 231 17.3 8.4 206 FISHER CREEK 9100 39.8 20.3 196 35.3 20.4 173 MADISON PLATEAU 7750 -M 13.4 * -M 14.6 * NORTHEAST ENTRANCE 7350 7.8 5.3 147 13.9 7.1 196 PARKER PEAK 9400 21.6 12.6 171 15.0 9.1 165 SYLVAN LAKE 8420 21.6 13.0 166 19.7 11.6 170 THUMB DIVIDE 7980 22.8 9.5 240 21.0 13.0 162 TWO OCEAN PLATEAU 9360 30.7 15.7 196 28.8 19.1 151 WHISKEY CREEK 6800 16.3 9.3 175 23.6 12.1 195 WHITE MILL 8700 26.6 14.4 185 -M 16.2 * WOLVERINE 7650 10.1 6.7 151 11.1 7.6 146 ----- ----- Basin wide percent of average 191 173 WIND RIVER BURROUGHS CREEK 8750 17.0 8.9 191 16.8 9.8 171 CHRISTINA LAKE 9980 14.5 9.1 159 15.6 9.7 161 COLD SPRINGS 9630 6.9 5.2 133 7.9 6.2 127 HOBBS PARK 10100 11.9 9.0 132 9.5 8.1 117 LITTLE WARM 9620 12.2 6.2 197 13.3 7.8 171 SOUTH PASS 9040 19.2 10.0 192 18.3 9.4 195 ST. LAWRENCE ALT 8620 5.5 4.1 134 6.7 5.7 118 TOGWOTEE PASS 9580 23.1 14.3 162 21.6 17.1 126 TOWNSEND CREEK 8700 6.8 5.4 126 8.2 6.8 121 ----- ----- Basin wide percent of average 162 146 BIGHORN BASIN BALD MTN. 9375 13.9 12.2 114 11.4 10.2 112 BEAR TRAP MEADOW 7900 4.8 4.3 112 5.4 4.9 110 BLACKWATER 9780 25.4 12.1 210 18.6 10.6 175 BONE SPRINGS DIV 9350 11.4 9.4 121 10.0 8.2 122 EVENING STAR 9200 28.1 15.7 179 -M 13.1 * GRAVE SPRINGS 8550 8.3 -M * 8.1 5.8 140 KIRWIN 9550 10.8 6.0 180 11.9 6.0 198 LOST CREEK 8080 10.1 7.0 144 10.8 6.8 159 MARQUETTE 8760 6.9 4.6 150 7.4 5.3 140 MIDDLE POWDER 7760 10.7 6.9 155 9.8 6.9 142 OWL CREEK 8975 4.9 2.4 204 4.2 3.3 127 POWDER RIVER PASS 9480 7.5 6.1 123 8.1 6.7 121 SHELL CREEK 9580 10.8 9.1 119 8.8 7.7 114 SYLVAN LAKE 8420 21.6 13.0 166 19.7 11.6 170 SYLVAN ROAD 8120 12.9 7.2 179 19.5 9.6 203 TIMBER CREEK 7950 4.1 3.1 132 4.6 3.8 121 YOUNTS PEAK 8350 15.4 10.7 144 19.6 9.7 202 ----- ----- Basin wide percent of average 154 152 SHOSHONE RIVER BLACKWATER 9780 25.4 12.1 210 18.6 10.6 175 EVENING STAR 9200 28.1 15.7 179 -M 13.1 * KIRWIN 9550 10.8 6.0 180 11.9 6.0 198 MARQUETTE 8760 6.9 4.6 150 7.4 5.3 140 SYLVAN LAKE 8420 21.6 13.0 166 19.7 11.6 170 SYLVAN ROAD 8120 12.9 7.2 179 19.5 9.6 203 YOUNTS PEAK 8350 15.4 10.7 144 19.6 9.7 202 ----- ----- Basin wide percent of average 175 183 POWDER-TONGUE BEAR TRAP MEADOW 7900 4.8 4.3 112 5.4 4.9 110 BONE SPRINGS DIV 9350 11.4 9.4 121 10.0 8.2 122 BURGESS JUNCTION 7880 8.1 6.6 123 8.3 6.4 130 CLOUD PEAK RESERVOIR 9860 12.0 6.9 174 9.9 7.1 139 DOME LAKE 8880 7.7 7.8 99 8.8 7.8 113 GRAVE SPRINGS 8550 8.3 -M * 8.1 5.8 140 HANSEN SAWMILL 8760 4.5 4.0 113 5.3 4.5 118 LOST CREEK 8080 10.1 7.0 144 10.8 6.8 159 MIDDLE POWDER 7760 10.7 6.9 155 9.8 6.9 142 POWDER RIVER PASS 9480 7.5 6.1 123 8.1 6.7 121 SUCKER CREEK 8880 9.4 6.4 147 9.2 7.6 121 TIE CREEK 6870 5.4 -M * 7.7 6.1 126 ----- ----- Basin wide percent of average 132 129 BELLE FOURCHE BLIND PARK 6890 7.5 6.3 119 11.8 5.5 215 NORTH RAPID CREEK 6130 7.2 -M * 10.1 -M * WARREN PEAK 6520 13.2 6.3 210 -M 4.6 * ----- ----- Basin wide percent of average 164 215* UPPER N. PLATTE RIVER COLUMBINE 9400 16.6 13.2 126 20.3 13.7 148 DIVIDE PEAK 8800 17.0 11.6 147 17.0 14.1 121 ELK RIVER 8700 19.2 10.5 183 18.1 10.7 169 JOE WRIGHT 10120 17.0 12.3 138 21.1 14.1 150 NORTH FRENCH CREEK 10100 23.0 13.9 165 21.1 13.1 161 OLD BATTLE 10000 28.8 17.8 162 26.8 16.9 159 SOUTH BRUSH CREEK 8400 -M 6.0 * 12.6 10.3 122 TOWER 10500 -M 25.2 * 29.2 20.5 142 WEBBER SPRINGS 9200 21.5 15.0 143 25.0 15.0 167 WILLOW CREEK PASS 9540 13.0 6.6 197 9.9 7.0 141 ----- ----- Basin wide percent of average 155 149 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 23.0 14.2 162 -M 10.4 * CASPER MTN. 7900 12.9 8.3 155 12.6 7.9 159 CHRISTINA LAKE 9980 14.5 9.1 159 15.6 9.7 161 DEADMAN HILL 10220 10.4 9.7 107 11.9 8.9 134 LAPRELE CREEK 8320 10.0 5.7 175 9.5 6.4 148 RENO HILL 8400 12.6 7.4 170 12.5 10.6 118 ROACH 9700 15.4 9.5 162 15.7 12.3 128 SAND LAKE 10080 24.4 18.4 133 19.2 11.3 170 SOUTH PASS 9040 19.2 10.0 192 18.3 9.4 195 WINDY PEAK 7840 6.7 3.8 176 7.7 5.0 154 ----- ----- Basin wide percent of average 155 151 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 11.6 6.2 187 13.1 9.3 141 DIVIDE PEAK 8800 17.0 11.6 147 17.0 14.1 121 OLD BATTLE 10000 28.8 17.8 162 26.8 16.9 159 SANDSTONE RS 8150 13.8 7.9 175 16.2 11.2 145 WHISKEY PARK 8950 -M 15.8 * -M 16.0 * ----- ----- Basin wide percent of average 164 142 UPPER GREEN RIVER BIG SANDY OPENING 9100 13.8 8.0 173 12.9 10.1 128 BLIND BULL SUM 8650 27.9 16.2 172 20.4 13.9 147 EAST RIM DIVIDE 7930 11.5 7.6 151 12.4 9.4 132 ELKHART PARK G.S. 9400 13.9 7.6 183 13.7 9.9 138 GROS VENTRE SUMMIT 8775 15.2 8.9 171 12.9 9.9 130 KENDALL R.S. 7740 16.9 8.3 204 17.5 9.6 182 LOOMIS PARK 8240 15.9 9.6 166 17.6 11.7 150 NEW FORK LAKE 8340 11.1 6.4 173 10.2 9.0 113 SNIDER BASIN 8250 15.8 8.1 195 14.1 9.4 150 SPRING CREEK DIVIDE 9000 25.4 15.1 168 20.0 16.4 122 TRIPLE PEAK 8500 24.6 14.4 171 26.0 19.3 135 ----- ----- Basin wide percent of average 174 138 LOWER GREEN RIVER HAMS FORK 7840 12.2 6.5 188 10.9 8.3 131 HEWINTA 9500 8.9 5.2 171 9.7 7.4 131 HICKERSON PARK 9150 4.8 3.1 155 6.5 5.4 120 HOLE-IN-ROCK 9150 5.9 2.8 211 6.8 5.4 126 INDIAN CREEK 9425 27.8 15.2 183 19.6 15.5 126 KELLEY R.S. 8180 17.8 8.8 202 20.6 11.6 178 STEEL CREEK PARK 10100 10.9 8.7 125 10.7 7.7 139 ----- ----- Basin wide percent of average 176 138 UPPER BEAR RIVER BUG LAKE 7950 21.6 11.1 195 21.5 11.2 192 HAYDEN FORK 9400 13.7 8.9 154 18.0 10.4 173 KELLEY R.S. 8180 17.8 8.8 202 20.6 11.6 178 LILY LAKE 9050 12.7 7.3 174 13.8 8.4 164 MONTE CRISTO 8960 28.2 14.7 192 23.3 14.5 161 SALT RIVER SUMMIT 7600 15.1 7.2 210 16.6 10.5 158 TRIAL LAKE 9960 24.4 13.9 176 -M 13.2 * ----- ----- Basin wide percent of average 186 171 ----------------------------------------------------------------------------- -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.