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: FEBRUARY 26 , 1997 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 26.5 15.4 172 27.5 19.7 140 COTTONWOOD CREEK 7600 26.2 18.1 145 27.7 21.8 127 GRANITE CREEK 6770 26.6 15.1 176 22.3 20.7 108 GRASSY LAKE 7265 40.0 29.6 135 38.5 31.8 121 GROS VENTRE SUMMIT 8775 19.0 12.6 151 17.7 13.9 127 LEWIS LAKE DIVIDE 7860 47.5 28.8 165 -M 32.3 * PHILLIPS BENCH 8200 35.5 23.7 150 39.5 25.6 154 SALT RIVER SUMMIT 7600 19.7 11.8 167 21.1 14.8 143 SNAKE RIVER STATION 6920 25.3 15.8 160 32.2 22.4 144 SPRING CREEK DIVIDE 9000 31.8 22.7 140 -M 23.6 * THUMB DIVIDE 7980 28.3 14.0 202 -M 18.4 * TOGWOTEE PASS 9580 29.9 20.4 147 -M 24.2 * TWO OCEAN PLATEAU 9360 38.5 21.8 177 -M 27.1 * WILLOW CREEK 8450 33.2 25.4 131 36.6 28.0 131 ----- ----- Basin wide percent of average 156 132 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 31.1 19.5 159 -M 14.8 * BLACK BEAR 7950 -M 31.0 * -M 32.9 * CANYON 7940 21.0 10.4 202 23.1 11.9 194 FISHER CREEK 9100 48.6 29.7 164 -M 30.0 * MADISON PLATEAU 7750 35.6 20.2 176 34.7 21.3 163 NORTHEAST ENTRANCE 7350 11.2 7.9 142 17.0 10.0 170 PARKER PEAK 9400 27.5 17.6 156 -M 12.8 * SYLVAN LAKE 8420 27.6 18.1 152 -M 16.0 * THUMB DIVIDE 7980 28.3 14.0 202 -M 18.4 * TWO OCEAN PLATEAU 9360 38.5 21.8 177 -M 27.1 * WHISKEY CREEK 6800 21.9 14.1 155 -M 17.6 * WHITE MILL 8700 33.3 20.8 160 -M 23.3 * WOLVERINE 7650 14.0 9.9 141 13.8 10.8 128 ----- ----- Basin wide percent of average 166 164* WIND RIVER BURROUGHS CREEK 8750 21.2 12.8 166 -M 13.7 * CHRISTINA LAKE 9980 18.0 12.4 145 19.5 13.0 150 COLD SPRINGS 9630 9.0 6.9 130 9.9 8.2 121 HOBBS PARK 10100 14.9 11.9 125 11.6 11.0 105 LITTLE WARM 9620 15.0 9.0 167 16.4 10.6 155 SOUTH PASS 9040 23.2 13.7 169 21.8 13.5 161 ST. LAWRENCE ALT 8620 7.9 6.1 130 9.3 7.8 119 TOGWOTEE PASS 9580 29.9 20.4 147 -M 24.2 * TOWNSEND CREEK 8700 9.0 7.8 115 10.1 9.6 105 ----- ----- Basin wide percent of average 147 134 BIGHORN BASIN BALD MTN. 9375 18.8 16.7 113 15.6 13.8 113 BEAR TRAP MEADOW 7900 6.6 5.8 114 7.1 6.2 115 BLACKWATER 9780 32.5 17.6 185 24.6 14.9 165 BONE SPRINGS DIV 9350 15.6 13.1 119 14.0 11.5 122 EVENING STAR 9200 36.3 22.1 164 -M 18.6 * GRAVE SPRINGS 8550 9.7 -M * 9.2 7.3 126 KIRWIN 9550 13.1 7.9 166 14.3 8.4 170 LOST CREEK 8080 12.1 10.4 116 12.5 9.1 137 MARQUETTE 8760 9.0 6.4 141 9.2 7.0 131 MIDDLE POWDER 7760 12.2 9.5 128 11.4 9.1 125 OWL CREEK 8975 6.6 3.6 183 5.5 4.8 115 POWDER RIVER PASS 9480 11.7 8.6 136 11.3 9.2 123 SHELL CREEK 9580 15.1 12.4 122 12.4 10.4 119 SYLVAN LAKE 8420 27.6 18.1 152 -M 16.0 * SYLVAN ROAD 8120 18.4 10.9 169 24.1 13.3 181 TIMBER CREEK 7950 5.9 4.8 123 6.5 5.0 130 YOUNTS PEAK 8350 20.3 14.5 140 -M 13.6 * ----- ----- Basin wide percent of average 144 137 SHOSHONE RIVER BLACKWATER 9780 32.5 17.6 185 24.6 14.9 165 EVENING STAR 9200 36.3 22.1 164 -M 18.6 * KIRWIN 9550 13.1 7.9 166 14.3 8.4 170 MARQUETTE 8760 9.0 6.4 141 9.2 7.0 131 SYLVAN LAKE 8420 27.6 18.1 152 -M 16.0 * SYLVAN ROAD 8120 18.4 10.9 169 24.1 13.3 181 YOUNTS PEAK 8350 20.3 14.5 140 -M 13.6 * ----- ----- Basin wide percent of average 161 166 POWDER-TONGUE BEAR TRAP MEADOW 7900 6.6 5.8 114 7.1 6.2 115 BONE SPRINGS DIV 9350 15.6 13.1 119 14.0 11.5 122 BURGESS JUNCTION 7880 10.6 9.5 112 10.5 8.4 125 CLOUD PEAK RESERVOIR 9860 15.1 10.8 140 12.5 10.1 124 DOME LAKE 8880 9.6 11.0 87 11.7 10.2 115 GRAVE SPRINGS 8550 9.7 -M * 9.2 7.3 126 HANSEN SAWMILL 8760 6.2 5.6 111 6.4 5.9 108 LOST CREEK 8080 12.1 10.4 116 12.5 9.1 137 MIDDLE POWDER 7760 12.2 9.5 128 11.4 9.1 125 POWDER RIVER PASS 9480 11.7 8.6 136 11.3 9.2 123 SUCKER CREEK 8880 12.1 9.5 127 12.0 10.3 117 TIE CREEK 6870 7.2 -M * 9.7 8.1 120 ----- ----- Basin wide percent of average 119 122 BELLE FOURCHE BLIND PARK 6890 9.7 8.9 109 13.6 7.4 184 NORTH RAPID CREEK 6130 9.7 -M * 12.0 -M * WARREN PEAK 6520 15.8 8.9 178 -M 6.1 * ----- ----- Basin wide percent of average 143 184* UPPER N. PLATTE RIVER COLUMBINE 9400 27.3 20.4 134 26.6 20.1 132 DIVIDE PEAK 8800 21.6 16.4 132 21.0 18.4 114 ELK RIVER 8700 25.0 16.3 153 22.6 15.2 149 JOE WRIGHT 10120 20.5 17.1 120 25.6 19.8 129 NORTH FRENCH CREEK 10100 31.2 19.9 157 25.5 18.5 138 OLD BATTLE 10000 95.1 25.6 371 28.2 24.0 118 SOUTH BRUSH CREEK 8400 13.5 9.1 148 15.6 12.7 123 TOWER 10500 49.3 36.5 135 36.3 29.4 123 WEBBER SPRINGS 9200 27.7 21.8 127 31.5 20.3 155 WILLOW CREEK PASS 9540 16.0 9.0 178 12.7 9.7 131 ----- ----- Basin wide percent of average 170 131 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 30.0 19.5 154 23.5 15.1 156 CASPER MTN. 7900 17.3 12.0 144 16.4 10.6 155 CHRISTINA LAKE 9980 18.0 12.4 145 19.5 13.0 150 DEADMAN HILL 10220 13.9 13.3 105 15.4 12.7 121 LAPRELE CREEK 8320 13.2 8.2 161 12.6 8.9 142 RENO HILL 8400 18.7 10.5 178 16.0 14.3 112 ROACH 9700 19.3 13.7 141 19.4 17.0 114 SAND LAKE 10080 31.8 26.2 121 25.0 16.1 155 SOUTH PASS 9040 23.2 13.7 169 21.8 13.5 161 WINDY PEAK 7840 9.0 6.0 150 10.4 7.0 149 ----- ----- Basin wide percent of average 143 140 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 15.2 9.6 158 16.4 12.4 132 DIVIDE PEAK 8800 21.6 16.4 132 21.0 18.4 114 OLD BATTLE 10000 95.1 25.6 371 28.2 24.0 118 SANDSTONE RS 8150 18.1 11.9 152 20.3 15.2 134 WHISKEY PARK 8950 34.0 23.0 148 29.7 22.2 134 ----- ----- Basin wide percent of average 213 125 UPPER GREEN RIVER BIG SANDY OPENING 9100 17.1 11.8 145 15.2 14.2 107 BLIND BULL SUM 8650 36.4 23.8 153 -M 20.6 * EAST RIM DIVIDE 7930 14.8 11.7 126 15.2 13.3 114 ELKHART PARK G.S. 9400 16.4 11.2 146 16.4 14.0 117 GROS VENTRE SUMMIT 8775 19.0 12.6 151 17.7 13.9 127 KENDALL R.S. 7740 21.4 12.2 175 17.3 13.6 127 LOOMIS PARK 8240 -M 14.6 * 19.6 16.5 119 NEW FORK LAKE 8340 13.3 9.7 137 12.0 12.7 94 SNIDER BASIN 8250 20.7 12.5 166 17.6 13.3 132 SPRING CREEK DIVIDE 9000 31.8 22.7 140 -M 23.6 * TRIPLE PEAK 8500 31.3 21.3 147 32.8 27.3 120 ----- ----- Basin wide percent of average 149 118 LOWER GREEN RIVER HAMS FORK 7840 15.4 10.3 150 13.5 11.7 115 HEWINTA 9500 11.8 8.2 144 12.4 10.0 124 HICKERSON PARK 9150 6.4 4.9 131 7.7 7.1 108 HOLE-IN-ROCK 9150 6.6 4.4 150 8.1 7.1 114 INDIAN CREEK 9425 35.4 22.4 158 28.5 22.1 129 KELLEY R.S. 8180 21.6 13.9 155 24.4 16.5 148 STEEL CREEK PARK 10100 13.9 12.2 114 13.4 10.1 133 ----- ----- Basin wide percent of average 146 128 UPPER BEAR RIVER BUG LAKE 7950 29.1 16.5 176 26.6 15.6 171 HAYDEN FORK 9400 18.3 13.3 138 22.7 14.8 153 KELLEY R.S. 8180 21.6 13.9 155 24.4 16.5 148 LILY LAKE 9050 15.7 10.4 151 17.3 11.5 150 MONTE CRISTO 8960 37.0 22.7 163 30.1 20.3 148 SALT RIVER SUMMIT 7600 19.7 11.8 167 21.1 14.8 143 TRIAL LAKE 9960 32.9 20.6 160 32.0 19.2 167 ----- ----- Basin wide percent of average 160 155 ----------------------------------------------------------------------------- -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.