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 27 , 1997 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 26.8 15.5 173 27.6 19.8 139 COTTONWOOD CREEK 7600 26.5 18.2 146 27.8 21.9 127 GRANITE CREEK 6770 26.9 15.2 177 22.3 20.8 107 GRASSY LAKE 7265 40.5 29.6 137 38.6 32.1 120 GROS VENTRE SUMMIT 8775 19.2 12.7 151 17.9 14.0 128 LEWIS LAKE DIVIDE 7860 48.1 29.1 165 -M 32.6 * PHILLIPS BENCH 8200 35.9 23.9 150 39.8 25.8 154 SALT RIVER SUMMIT 7600 19.9 11.9 167 21.3 14.9 143 SNAKE RIVER STATION 6920 25.7 16.0 161 32.4 22.5 144 SPRING CREEK DIVIDE 9000 32.0 22.9 140 -M 23.8 * THUMB DIVIDE 7980 28.6 14.1 203 -M 18.6 * TOGWOTEE PASS 9580 30.2 20.5 147 -M 24.4 * TWO OCEAN PLATEAU 9360 38.9 21.9 178 -M 27.3 * WILLOW CREEK 8450 33.3 25.5 131 36.8 28.2 130 ----- ----- Basin wide percent of average 156 132 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 31.5 19.6 161 -M 14.9 * BLACK BEAR 7950 -M 31.2 * -M 33.2 * CANYON 7940 21.2 10.5 202 23.2 11.9 195 FISHER CREEK 9100 48.8 29.9 163 -M 30.3 * MADISON PLATEAU 7750 36.0 20.3 177 34.8 21.5 162 NORTHEAST ENTRANCE 7350 11.2 8.0 140 16.9 10.1 167 PARKER PEAK 9400 27.7 17.7 156 -M 12.9 * SYLVAN LAKE 8420 28.0 18.3 153 -M 16.1 * THUMB DIVIDE 7980 28.6 14.1 203 -M 18.6 * TWO OCEAN PLATEAU 9360 38.9 21.9 178 -M 27.3 * WHISKEY CREEK 6800 22.2 14.3 155 -M 17.7 * WHITE MILL 8700 33.5 20.9 160 -M 23.5 * WOLVERINE 7650 14.4 10.0 144 13.8 10.8 128 ----- ----- Basin wide percent of average 166 163* WIND RIVER BURROUGHS CREEK 8750 21.7 12.9 168 -M 13.8 * CHRISTINA LAKE 9980 18.3 12.5 146 19.5 13.1 149 COLD SPRINGS 9630 9.0 6.9 130 10.0 8.3 120 HOBBS PARK 10100 15.0 11.9 126 11.6 11.1 105 LITTLE WARM 9620 15.5 9.1 170 16.4 10.7 153 SOUTH PASS 9040 23.4 13.8 170 21.8 13.6 160 ST. LAWRENCE ALT 8620 8.0 6.1 131 9.4 7.9 119 TOGWOTEE PASS 9580 30.2 20.5 147 -M 24.4 * TOWNSEND CREEK 8700 9.1 7.9 115 10.1 9.7 104 ----- ----- Basin wide percent of average 148 133 BIGHORN BASIN BALD MTN. 9375 19.0 16.8 113 15.7 13.9 113 BEAR TRAP MEADOW 7900 6.7 5.8 116 7.1 6.2 115 BLACKWATER 9780 32.7 17.7 185 24.6 15.0 164 BONE SPRINGS DIV 9350 15.8 13.2 120 14.1 11.5 123 EVENING STAR 9200 36.8 22.2 166 -M 18.7 * GRAVE SPRINGS 8550 9.8 -M * 9.3 7.3 127 KIRWIN 9550 13.2 8.0 165 14.6 8.5 172 LOST CREEK 8080 12.3 10.5 117 12.5 9.2 136 MARQUETTE 8760 9.1 6.4 142 9.2 7.0 131 MIDDLE POWDER 7760 12.3 9.6 128 11.4 9.1 125 OWL CREEK 8975 6.7 3.6 186 5.5 4.8 115 POWDER RIVER PASS 9480 11.9 8.7 137 11.4 9.3 123 SHELL CREEK 9580 15.3 12.4 123 12.5 10.5 119 SYLVAN LAKE 8420 28.0 18.3 153 -M 16.1 * SYLVAN ROAD 8120 18.7 11.0 170 24.3 13.4 181 TIMBER CREEK 7950 5.9 4.8 123 6.5 5.0 130 YOUNTS PEAK 8350 20.5 14.6 140 -M 13.7 * ----- ----- Basin wide percent of average 144 137 SHOSHONE RIVER BLACKWATER 9780 32.7 17.7 185 24.6 15.0 164 EVENING STAR 9200 36.8 22.2 166 -M 18.7 * KIRWIN 9550 13.2 8.0 165 14.6 8.5 172 MARQUETTE 8760 9.1 6.4 142 9.2 7.0 131 SYLVAN LAKE 8420 28.0 18.3 153 -M 16.1 * SYLVAN ROAD 8120 18.7 11.0 170 24.3 13.4 181 YOUNTS PEAK 8350 20.5 14.6 140 -M 13.7 * ----- ----- Basin wide percent of average 162 166 POWDER-TONGUE BEAR TRAP MEADOW 7900 6.7 5.8 116 7.1 6.2 115 BONE SPRINGS DIV 9350 15.8 13.2 120 14.1 11.5 123 BURGESS JUNCTION 7880 10.7 9.5 113 10.9 8.5 128 CLOUD PEAK RESERVOIR 9860 15.2 10.9 139 12.6 10.1 125 DOME LAKE 8880 9.8 11.1 88 11.7 10.3 114 GRAVE SPRINGS 8550 9.8 -M * 9.3 7.3 127 HANSEN SAWMILL 8760 6.4 5.6 114 6.5 5.9 110 LOST CREEK 8080 12.3 10.5 117 12.5 9.2 136 MIDDLE POWDER 7760 12.3 9.6 128 11.4 9.1 125 POWDER RIVER PASS 9480 11.9 8.7 137 11.4 9.3 123 SUCKER CREEK 8880 12.2 9.6 127 12.0 10.4 115 TIE CREEK 6870 7.3 -M * 9.8 8.1 121 ----- ----- Basin wide percent of average 120 122 BELLE FOURCHE BLIND PARK 6890 9.7 9.0 108 13.6 7.5 181 NORTH RAPID CREEK 6130 9.6 -M * 12.1 -M * WARREN PEAK 6520 15.8 9.0 176 -M 6.1 * ----- ----- Basin wide percent of average 142 181* UPPER N. PLATTE RIVER COLUMBINE 9400 27.5 20.6 133 26.8 20.2 133 DIVIDE PEAK 8800 21.8 16.6 131 21.1 18.5 114 ELK RIVER 8700 25.1 16.4 153 22.5 15.3 147 JOE WRIGHT 10120 20.6 17.2 120 25.5 19.9 128 NORTH FRENCH CREEK 10100 31.3 20.1 156 25.6 18.6 138 OLD BATTLE 10000 33.9 25.8 131 32.3 24.1 134 SOUTH BRUSH CREEK 8400 13.5 9.2 147 15.7 12.7 124 TOWER 10500 49.5 36.8 135 36.3 29.6 123 WEBBER SPRINGS 9200 27.9 22.0 127 31.5 20.4 154 WILLOW CREEK PASS 9540 16.2 9.1 178 12.9 9.8 132 ----- ----- Basin wide percent of average 138 132 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 30.2 19.6 154 23.6 15.3 154 CASPER MTN. 7900 17.4 12.1 144 16.4 10.6 155 CHRISTINA LAKE 9980 18.3 12.5 146 19.5 13.1 149 DEADMAN HILL 10220 13.9 13.3 105 15.6 12.8 122 LAPRELE CREEK 8320 13.5 8.3 163 12.6 9.0 140 RENO HILL 8400 18.7 10.6 176 16.0 14.4 111 ROACH 9700 19.3 13.8 140 19.6 17.1 115 SAND LAKE 10080 31.9 26.4 121 25.1 16.2 155 SOUTH PASS 9040 23.4 13.8 170 21.8 13.6 160 WINDY PEAK 7840 9.1 6.1 149 10.4 7.0 149 ----- ----- Basin wide percent of average 143 140 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 15.5 9.7 160 16.6 12.5 133 DIVIDE PEAK 8800 21.8 16.6 131 21.1 18.5 114 OLD BATTLE 10000 33.9 25.8 131 32.3 24.1 134 SANDSTONE RS 8150 18.2 12.0 152 20.0 15.3 131 WHISKEY PARK 8950 34.2 23.2 147 29.8 22.3 134 ----- ----- Basin wide percent of average 142 129 UPPER GREEN RIVER BIG SANDY OPENING 9100 17.4 11.9 146 15.4 14.3 108 BLIND BULL SUM 8650 36.8 23.9 154 -M 20.7 * EAST RIM DIVIDE 7930 14.9 11.8 126 15.3 13.4 114 ELKHART PARK G.S. 9400 16.6 11.3 147 16.4 14.1 116 GROS VENTRE SUMMIT 8775 19.2 12.7 151 17.9 14.0 128 KENDALL R.S. 7740 21.6 12.3 176 17.5 13.7 128 LOOMIS PARK 8240 -M 14.7 * 19.7 16.6 119 NEW FORK LAKE 8340 13.4 9.8 137 12.1 12.7 95 SNIDER BASIN 8250 20.7 12.6 164 17.5 13.4 131 SPRING CREEK DIVIDE 9000 32.0 22.9 140 -M 23.8 * TRIPLE PEAK 8500 31.7 21.4 148 32.8 27.5 119 ----- ----- Basin wide percent of average 149 118 LOWER GREEN RIVER HAMS FORK 7840 15.5 10.3 150 13.6 11.8 115 HEWINTA 9500 11.8 8.3 142 12.3 10.1 122 HICKERSON PARK 9150 6.9 4.9 141 7.9 7.1 111 HOLE-IN-ROCK 9150 6.7 4.4 152 8.2 7.1 115 INDIAN CREEK 9425 35.8 22.6 158 28.6 22.2 129 KELLEY R.S. 8180 21.8 14.0 156 24.4 16.6 147 STEEL CREEK PARK 10100 13.9 12.4 112 13.5 10.2 132 ----- ----- Basin wide percent of average 146 127 UPPER BEAR RIVER BUG LAKE 7950 29.3 16.7 175 26.7 15.7 170 HAYDEN FORK 9400 18.2 13.5 135 22.8 15.0 152 KELLEY R.S. 8180 21.8 14.0 156 24.4 16.6 147 LILY LAKE 9050 15.6 10.4 150 17.3 11.5 150 MONTE CRISTO 8960 37.6 23.0 163 30.3 20.5 148 SALT RIVER SUMMIT 7600 19.9 11.9 167 21.3 14.9 143 TRIAL LAKE 9960 33.1 20.8 159 32.0 19.4 165 ----- ----- Basin wide percent of average 159 154 ----------------------------------------------------------------------------- -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.