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 SATURDAY: FEBRUARY 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 26.0 14.9 174 27.5 19.2 143 COTTONWOOD CREEK 7600 26.0 17.5 149 27.6 21.1 131 GRANITE CREEK 6770 26.4 14.7 180 22.3 20.1 111 GRASSY LAKE 7265 39.9 29.7 134 38.5 31.0 124 GROS VENTRE SUMMIT 8775 18.7 12.3 152 17.5 13.6 129 LEWIS LAKE DIVIDE 7860 47.3 27.9 170 -M 31.5 * PHILLIPS BENCH 8200 35.3 23.1 153 39.5 24.9 159 SALT RIVER SUMMIT 7600 19.6 11.4 172 21.0 14.4 146 SNAKE RIVER STATION 6920 25.1 15.4 163 32.2 21.8 148 SPRING CREEK DIVIDE 9000 31.9 22.0 145 -M 22.9 * THUMB DIVIDE 7980 28.0 13.6 206 -M 17.9 * TOGWOTEE PASS 9580 29.7 19.9 149 -M 23.6 * TWO OCEAN PLATEAU 9360 38.2 21.3 179 -M 26.4 * WILLOW CREEK 8450 33.1 24.8 133 36.3 27.2 133 ----- ----- Basin wide percent of average 158 136 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 30.7 19.0 162 -M 14.4 * BLACK BEAR 7950 -M 30.0 * -M 31.9 * CANYON 7940 20.9 10.1 207 23.3 11.6 201 FISHER CREEK 9100 48.4 28.8 168 -M 29.2 * MADISON PLATEAU 7750 35.4 19.6 181 34.7 20.7 168 NORTHEAST ENTRANCE 7350 11.0 7.7 143 17.2 9.7 177 PARKER PEAK 9400 27.3 17.1 160 -M 12.5 * SYLVAN LAKE 8420 27.3 17.7 154 -M 15.5 * THUMB DIVIDE 7980 28.0 13.6 206 -M 17.9 * TWO OCEAN PLATEAU 9360 38.2 21.3 179 -M 26.4 * WHISKEY CREEK 6800 21.9 13.7 160 -M 17.1 * WHITE MILL 8700 33.0 20.3 163 -M 22.7 * WOLVERINE 7650 13.6 9.6 142 13.5 10.5 129 ----- ----- Basin wide percent of average 169 169* WIND RIVER BURROUGHS CREEK 8750 20.8 12.5 166 -M 13.3 * CHRISTINA LAKE 9980 17.7 12.1 146 19.5 12.7 154 COLD SPRINGS 9630 8.5 6.7 127 9.7 8.0 121 HOBBS PARK 10100 14.2 11.6 122 11.3 10.7 106 LITTLE WARM 9620 14.6 8.7 168 15.9 10.3 154 SOUTH PASS 9040 22.8 13.4 170 21.6 13.1 165 ST. LAWRENCE ALT 8620 7.5 5.9 127 9.2 7.6 121 TOGWOTEE PASS 9580 29.7 19.9 149 -M 23.6 * TOWNSEND CREEK 8700 8.2 7.6 108 9.4 9.3 101 ----- ----- Basin wide percent of average 146 135 BIGHORN BASIN BALD MTN. 9375 18.5 16.3 113 15.3 13.5 113 BEAR TRAP MEADOW 7900 6.2 5.7 109 6.4 6.1 105 BLACKWATER 9780 31.9 17.0 188 24.2 14.5 167 BONE SPRINGS DIV 9350 15.2 12.7 120 13.8 11.1 124 EVENING STAR 9200 35.8 21.5 167 -M 18.1 * GRAVE SPRINGS 8550 9.5 -M * 9.1 7.2 126 KIRWIN 9550 12.6 7.7 164 14.3 8.2 174 LOST CREEK 8080 12.0 10.0 120 12.2 8.9 137 MARQUETTE 8760 8.6 6.2 139 8.9 6.8 131 MIDDLE POWDER 7760 12.2 9.2 133 11.1 8.8 126 OWL CREEK 8975 6.2 3.5 177 5.1 4.6 111 POWDER RIVER PASS 9480 11.7 8.4 139 11.2 9.0 124 SHELL CREEK 9580 14.9 12.1 123 12.3 10.2 121 SYLVAN LAKE 8420 27.3 17.7 154 -M 15.5 * SYLVAN ROAD 8120 18.3 10.6 173 24.3 13.0 187 TIMBER CREEK 7950 5.5 4.6 120 6.2 4.9 127 YOUNTS PEAK 8350 20.1 14.2 142 -M 13.3 * ----- ----- Basin wide percent of average 145 138 SHOSHONE RIVER BLACKWATER 9780 31.9 17.0 188 24.2 14.5 167 EVENING STAR 9200 35.8 21.5 167 -M 18.1 * KIRWIN 9550 12.6 7.7 164 14.3 8.2 174 MARQUETTE 8760 8.6 6.2 139 8.9 6.8 131 SYLVAN LAKE 8420 27.3 17.7 154 -M 15.5 * SYLVAN ROAD 8120 18.3 10.6 173 24.3 13.0 187 YOUNTS PEAK 8350 20.1 14.2 142 -M 13.3 * ----- ----- Basin wide percent of average 163 169 POWDER-TONGUE BEAR TRAP MEADOW 7900 6.2 5.7 109 6.4 6.1 105 BONE SPRINGS DIV 9350 15.2 12.7 120 13.8 11.1 124 BURGESS JUNCTION 7880 10.2 9.2 111 10.3 8.2 126 CLOUD PEAK RESERVOIR 9860 14.8 10.4 142 12.3 9.8 126 DOME LAKE 8880 9.8 10.7 92 11.6 10.0 116 GRAVE SPRINGS 8550 9.5 -M * 9.1 7.2 126 HANSEN SAWMILL 8760 6.0 5.5 109 6.3 5.8 109 LOST CREEK 8080 12.0 10.0 120 12.2 8.9 137 MIDDLE POWDER 7760 12.2 9.2 133 11.1 8.8 126 POWDER RIVER PASS 9480 11.7 8.4 139 11.2 9.0 124 SUCKER CREEK 8880 11.7 9.2 127 11.5 10.0 115 TIE CREEK 6870 6.9 -M * 9.4 7.8 121 ----- ----- Basin wide percent of average 121 122 BELLE FOURCHE BLIND PARK 6890 9.5 8.7 109 13.5 7.2 188 NORTH RAPID CREEK 6130 9.8 -M * 11.9 -M * WARREN PEAK 6520 15.5 8.7 178 -M 6.0 * ----- ----- Basin wide percent of average 144 188* UPPER N. PLATTE RIVER COLUMBINE 9400 27.2 19.7 138 26.4 19.5 135 DIVIDE PEAK 8800 21.4 16.0 134 20.9 18.1 115 ELK RIVER 8700 25.0 15.8 158 22.5 14.8 152 JOE WRIGHT 10120 20.3 16.6 122 25.6 19.3 133 NORTH FRENCH CREEK 10100 31.0 19.3 161 25.3 17.9 141 OLD BATTLE 10000 33.9 24.8 137 28.2 23.2 122 SOUTH BRUSH CREEK 8400 13.8 8.8 157 15.5 12.4 125 TOWER 10500 49.4 35.5 139 36.2 28.5 127 WEBBER SPRINGS 9200 27.5 21.2 130 31.5 19.7 160 WILLOW CREEK PASS 9540 15.9 8.8 181 12.2 9.4 130 ----- ----- Basin wide percent of average 142 134 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 29.6 18.9 157 23.2 14.7 158 CASPER MTN. 7900 16.9 11.6 146 15.9 10.3 154 CHRISTINA LAKE 9980 17.7 12.1 146 19.5 12.7 154 DEADMAN HILL 10220 13.4 13.0 103 15.1 12.3 123 LAPRELE CREEK 8320 11.8 8.0 148 12.2 8.7 140 RENO HILL 8400 18.5 10.2 181 15.6 13.8 113 ROACH 9700 18.9 13.3 142 19.3 16.5 117 SAND LAKE 10080 31.6 25.5 124 25.0 15.6 160 SOUTH PASS 9040 22.8 13.4 170 21.6 13.1 165 WINDY PEAK 7840 9.0 5.8 155 9.8 6.8 144 ----- ----- Basin wide percent of average 144 142 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 15.7 9.2 171 16.3 12.2 134 DIVIDE PEAK 8800 21.4 16.0 134 20.9 18.1 115 OLD BATTLE 10000 33.9 24.8 137 28.2 23.2 122 SANDSTONE RS 8150 18.1 11.5 157 20.2 14.9 136 WHISKEY PARK 8950 34.0 22.3 152 29.4 21.9 134 ----- ----- Basin wide percent of average 147 127 UPPER GREEN RIVER BIG SANDY OPENING 9100 16.6 11.4 146 15.3 13.9 110 BLIND BULL SUM 8650 36.2 23.1 157 -M 20.0 * EAST RIM DIVIDE 7930 14.8 11.3 131 15.2 13.0 117 ELKHART PARK G.S. 9400 16.1 10.9 148 16.5 13.7 120 GROS VENTRE SUMMIT 8775 18.7 12.3 152 17.5 13.6 129 KENDALL R.S. 7740 21.0 11.9 176 17.1 13.3 129 LOOMIS PARK 8240 -M 14.2 * 19.5 16.1 121 NEW FORK LAKE 8340 13.0 9.4 138 11.8 12.3 96 SNIDER BASIN 8250 20.6 12.1 170 17.5 13.0 135 SPRING CREEK DIVIDE 9000 31.9 22.0 145 -M 22.9 * TRIPLE PEAK 8500 31.0 20.7 150 32.4 26.6 122 ----- ----- Basin wide percent of average 152 120 LOWER GREEN RIVER HAMS FORK 7840 15.6 10.0 156 13.3 11.4 117 HEWINTA 9500 11.3 7.9 143 12.3 9.8 126 HICKERSON PARK 9150 5.4 4.7 115 7.5 6.9 109 HOLE-IN-ROCK 9150 6.9 4.2 164 8.0 6.9 116 INDIAN CREEK 9425 35.0 21.8 161 28.3 21.5 132 KELLEY R.S. 8180 21.5 13.4 160 24.3 16.0 152 STEEL CREEK PARK 10100 13.6 11.8 115 13.3 9.9 134 ----- ----- Basin wide percent of average 148 130 UPPER BEAR RIVER BUG LAKE 7950 28.7 15.9 181 26.4 15.1 175 HAYDEN FORK 9400 18.2 12.9 141 22.6 14.4 157 KELLEY R.S. 8180 21.5 13.4 160 24.3 16.0 152 LILY LAKE 9050 15.7 10.1 155 17.2 11.2 154 MONTE CRISTO 8960 36.9 21.7 170 30.0 19.7 152 SALT RIVER SUMMIT 7600 19.6 11.4 172 21.0 14.4 146 TRIAL LAKE 9960 32.7 19.7 166 32.0 18.6 172 ----- ----- Basin wide percent of average 165 159 ----------------------------------------------------------------------------- -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.