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 TUESDAY: FEBRUARY 25 , 1997 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 26.3 15.2 173 27.5 19.6 140 COTTONWOOD CREEK 7600 26.1 17.9 146 27.7 21.6 128 GRANITE CREEK 6770 26.5 15.0 177 22.2 20.5 108 GRASSY LAKE 7265 39.9 29.7 134 38.5 31.6 122 GROS VENTRE SUMMIT 8775 18.8 12.6 149 17.6 13.8 128 LEWIS LAKE DIVIDE 7860 47.2 28.6 165 -M 32.1 * PHILLIPS BENCH 8200 35.4 23.6 150 39.5 25.4 156 SALT RIVER SUMMIT 7600 19.6 11.7 168 21.1 14.7 144 SNAKE RIVER STATION 6920 25.2 15.7 161 32.2 22.2 145 SPRING CREEK DIVIDE 9000 31.8 22.6 141 -M 23.4 * THUMB DIVIDE 7980 28.2 13.9 203 -M 18.3 * TOGWOTEE PASS 9580 29.8 20.3 147 -M 24.0 * TWO OCEAN PLATEAU 9360 38.3 21.7 176 -M 27.0 * WILLOW CREEK 8450 33.6 25.2 133 36.5 27.8 131 ----- ----- Basin wide percent of average 156 133 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 30.9 19.4 159 -M 14.7 * BLACK BEAR 7950 -M 30.7 * -M 32.7 * CANYON 7940 21.0 10.4 202 23.2 11.8 197 FISHER CREEK 9100 48.5 29.4 165 -M 29.8 * MADISON PLATEAU 7750 35.5 20.0 178 34.6 21.2 163 NORTHEAST ENTRANCE 7350 11.1 7.9 141 17.3 9.9 175 PARKER PEAK 9400 27.3 17.5 156 -M 12.7 * SYLVAN LAKE 8420 27.4 18.0 152 -M 15.9 * THUMB DIVIDE 7980 28.2 13.9 203 -M 18.3 * TWO OCEAN PLATEAU 9360 38.3 21.7 176 -M 27.0 * WHISKEY CREEK 6800 21.9 14.0 156 -M 17.5 * WHITE MILL 8700 33.1 20.7 160 -M 23.2 * WOLVERINE 7650 13.8 9.8 141 13.7 10.7 128 ----- ----- Basin wide percent of average 166 166* WIND RIVER BURROUGHS CREEK 8750 21.0 12.8 164 -M 13.6 * CHRISTINA LAKE 9980 17.9 12.4 144 19.5 13.0 150 COLD SPRINGS 9630 8.8 6.8 129 9.8 8.2 120 HOBBS PARK 10100 14.7 11.8 125 11.5 10.9 106 LITTLE WARM 9620 14.8 8.9 166 16.1 10.5 153 SOUTH PASS 9040 23.1 13.6 170 21.8 13.4 163 ST. LAWRENCE ALT 8620 7.8 6.0 130 9.3 7.8 119 TOGWOTEE PASS 9580 29.8 20.3 147 -M 24.0 * TOWNSEND CREEK 8700 8.7 7.7 113 9.8 9.5 103 ----- ----- Basin wide percent of average 146 133 BIGHORN BASIN BALD MTN. 9375 18.7 16.6 113 15.5 13.8 112 BEAR TRAP MEADOW 7900 6.6 5.8 114 7.4 6.2 119 BLACKWATER 9780 32.2 17.4 185 24.4 14.8 165 BONE SPRINGS DIV 9350 15.4 13.0 118 14.0 11.4 123 EVENING STAR 9200 36.2 21.9 165 -M 18.5 * GRAVE SPRINGS 8550 9.5 -M * 9.1 7.3 125 KIRWIN 9550 12.9 7.9 163 14.3 8.3 172 LOST CREEK 8080 12.0 10.3 117 12.3 9.1 135 MARQUETTE 8760 9.0 6.3 143 9.0 6.9 130 MIDDLE POWDER 7760 12.2 9.4 130 11.2 9.0 124 OWL CREEK 8975 6.4 3.6 178 5.3 4.7 113 POWDER RIVER PASS 9480 11.7 8.5 138 11.3 9.2 123 SHELL CREEK 9580 15.0 12.3 122 12.4 10.4 119 SYLVAN LAKE 8420 27.4 18.0 152 -M 15.9 * SYLVAN ROAD 8120 18.4 10.8 170 24.3 13.2 184 TIMBER CREEK 7950 5.7 4.7 121 6.3 5.0 126 YOUNTS PEAK 8350 20.1 14.4 140 -M 13.5 * ----- ----- Basin wide percent of average 144 137 SHOSHONE RIVER BLACKWATER 9780 32.2 17.4 185 24.4 14.8 165 EVENING STAR 9200 36.2 21.9 165 -M 18.5 * KIRWIN 9550 12.9 7.9 163 14.3 8.3 172 MARQUETTE 8760 9.0 6.3 143 9.0 6.9 130 SYLVAN LAKE 8420 27.4 18.0 152 -M 15.9 * SYLVAN ROAD 8120 18.4 10.8 170 24.3 13.2 184 YOUNTS PEAK 8350 20.1 14.4 140 -M 13.5 * ----- ----- Basin wide percent of average 162 167 POWDER-TONGUE BEAR TRAP MEADOW 7900 6.6 5.8 114 7.4 6.2 119 BONE SPRINGS DIV 9350 15.4 13.0 118 14.0 11.4 123 BURGESS JUNCTION 7880 10.4 9.4 111 10.5 8.4 125 CLOUD PEAK RESERVOIR 9860 14.9 10.7 139 12.4 10.0 124 DOME LAKE 8880 9.4 11.0 85 11.7 10.2 115 GRAVE SPRINGS 8550 9.5 -M * 9.1 7.3 125 HANSEN SAWMILL 8760 6.1 5.6 109 6.5 5.9 110 LOST CREEK 8080 12.0 10.3 117 12.3 9.1 135 MIDDLE POWDER 7760 12.2 9.4 130 11.2 9.0 124 POWDER RIVER PASS 9480 11.7 8.5 138 11.3 9.2 123 SUCKER CREEK 8880 12.0 9.4 128 11.8 10.2 116 TIE CREEK 6870 7.1 -M * 9.6 8.0 120 ----- ----- Basin wide percent of average 119 122 BELLE FOURCHE BLIND PARK 6890 9.6 8.8 109 13.8 7.4 186 NORTH RAPID CREEK 6130 9.8 -M * 12.2 -M * WARREN PEAK 6520 15.7 8.8 178 -M 6.1 * ----- ----- Basin wide percent of average 144 186* UPPER N. PLATTE RIVER COLUMBINE 9400 27.3 20.3 134 26.4 19.9 133 DIVIDE PEAK 8800 21.5 16.3 132 20.8 18.3 114 ELK RIVER 8700 24.9 16.2 154 22.5 15.1 149 JOE WRIGHT 10120 20.4 16.9 121 26.0 19.7 132 NORTH FRENCH CREEK 10100 31.2 19.8 158 25.3 18.4 138 OLD BATTLE 10000 37.9 25.4 149 28.1 23.8 118 SOUTH BRUSH CREEK 8400 13.6 9.1 149 15.6 12.6 124 TOWER 10500 49.4 36.3 136 36.2 29.2 124 WEBBER SPRINGS 9200 27.6 21.6 128 31.5 20.1 157 WILLOW CREEK PASS 9540 16.0 8.9 180 12.5 9.6 130 ----- ----- Basin wide percent of average 141 131 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 29.8 19.3 154 23.4 15.0 156 CASPER MTN. 7900 17.3 11.9 145 16.2 10.5 154 CHRISTINA LAKE 9980 17.9 12.4 144 19.5 13.0 150 DEADMAN HILL 10220 13.5 13.2 102 15.3 12.6 121 LAPRELE CREEK 8320 12.2 8.1 151 12.5 8.9 140 RENO HILL 8400 18.7 10.4 180 15.9 14.1 113 ROACH 9700 19.3 13.6 142 19.6 16.9 116 SAND LAKE 10080 31.6 26.0 122 25.0 16.0 156 SOUTH PASS 9040 23.1 13.6 170 21.8 13.4 163 WINDY PEAK 7840 9.1 5.9 154 9.9 6.9 143 ----- ----- Basin wide percent of average 143 141 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 15.3 9.5 161 16.3 12.4 131 DIVIDE PEAK 8800 21.5 16.3 132 20.8 18.3 114 OLD BATTLE 10000 37.9 25.4 149 28.1 23.8 118 SANDSTONE RS 8150 18.0 11.8 153 20.3 15.1 134 WHISKEY PARK 8950 34.0 22.9 148 29.5 22.1 133 ----- ----- Basin wide percent of average 147 125 UPPER GREEN RIVER BIG SANDY OPENING 9100 16.8 11.7 144 15.3 14.1 109 BLIND BULL SUM 8650 36.2 23.6 153 -M 20.4 * EAST RIM DIVIDE 7930 14.7 11.6 127 15.2 13.2 115 ELKHART PARK G.S. 9400 16.3 11.1 147 16.5 13.9 119 GROS VENTRE SUMMIT 8775 18.8 12.6 149 17.6 13.8 128 KENDALL R.S. 7740 21.3 12.1 176 17.2 13.5 127 LOOMIS PARK 8240 -M 14.5 * 19.4 16.4 118 NEW FORK LAKE 8340 13.1 9.6 136 11.8 12.6 94 SNIDER BASIN 8250 20.7 12.4 167 17.5 13.2 133 SPRING CREEK DIVIDE 9000 31.8 22.6 141 -M 23.4 * TRIPLE PEAK 8500 31.2 21.1 148 32.5 27.2 119 ----- ----- Basin wide percent of average 149 118 LOWER GREEN RIVER HAMS FORK 7840 15.4 10.2 151 13.3 11.6 115 HEWINTA 9500 11.7 8.2 143 12.4 9.9 125 HICKERSON PARK 9150 5.5 4.8 115 7.5 7.0 107 HOLE-IN-ROCK 9150 6.6 4.3 153 8.1 7.0 116 INDIAN CREEK 9425 35.2 22.2 159 28.3 21.9 129 KELLEY R.S. 8180 21.5 13.7 157 24.4 16.4 149 STEEL CREEK PARK 10100 13.7 12.1 113 13.3 10.1 132 ----- ----- Basin wide percent of average 145 128 UPPER BEAR RIVER BUG LAKE 7950 28.9 16.4 176 26.4 15.5 170 HAYDEN FORK 9400 18.3 13.2 139 22.7 14.7 154 KELLEY R.S. 8180 21.5 13.7 157 24.4 16.4 149 LILY LAKE 9050 15.8 10.3 153 17.3 11.4 152 MONTE CRISTO 8960 36.5 22.5 162 30.0 20.2 149 SALT RIVER SUMMIT 7600 19.6 11.7 168 21.1 14.7 144 TRIAL LAKE 9960 32.8 20.3 162 32.1 19.1 168 ----- ----- 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.