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 MONDAY: FEBRUARY 24 , 1997 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 25.9 15.1 172 27.5 19.4 142 COTTONWOOD CREEK 7600 26.1 17.8 147 27.7 21.4 129 GRANITE CREEK 6770 26.3 14.9 177 22.2 20.4 109 GRASSY LAKE 7265 39.5 29.7 133 38.5 31.4 123 GROS VENTRE SUMMIT 8775 18.7 12.5 150 17.6 13.7 128 LEWIS LAKE DIVIDE 7860 46.7 28.4 164 -M 31.9 * PHILLIPS BENCH 8200 35.4 23.4 151 39.5 25.2 157 SALT RIVER SUMMIT 7600 19.5 11.6 168 21.1 14.6 145 SNAKE RIVER STATION 6920 25.0 15.6 160 32.2 22.1 146 SPRING CREEK DIVIDE 9000 31.7 22.4 142 -M 23.3 * THUMB DIVIDE 7980 27.9 13.8 202 -M 18.2 * TOGWOTEE PASS 9580 29.7 20.1 148 -M 23.9 * TWO OCEAN PLATEAU 9360 38.2 21.6 177 -M 26.8 * WILLOW CREEK 8450 33.9 25.1 135 36.5 27.6 132 ----- ----- Basin wide percent of average 156 134 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 30.5 19.2 159 -M 14.6 * BLACK BEAR 7950 -M 30.5 * -M 32.4 * CANYON 7940 20.9 10.3 203 23.1 11.7 197 FISHER CREEK 9100 48.4 29.2 166 -M 29.6 * MADISON PLATEAU 7750 35.4 19.9 178 34.6 21.0 165 NORTHEAST ENTRANCE 7350 11.1 7.8 142 17.3 9.9 175 PARKER PEAK 9400 27.3 17.4 157 -M 12.6 * SYLVAN LAKE 8420 27.1 17.9 151 -M 15.7 * THUMB DIVIDE 7980 27.9 13.8 202 -M 18.2 * TWO OCEAN PLATEAU 9360 38.2 21.6 177 -M 26.8 * WHISKEY CREEK 6800 21.9 13.9 158 -M 17.4 * WHITE MILL 8700 33.0 20.5 161 -M 23.0 * WOLVERINE 7650 13.2 9.7 136 13.6 10.6 128 ----- ----- Basin wide percent of average 166 167* WIND RIVER BURROUGHS CREEK 8750 20.8 12.7 164 -M 13.5 * CHRISTINA LAKE 9980 17.6 12.3 143 19.5 12.9 151 COLD SPRINGS 9630 8.5 6.8 125 9.8 8.1 121 HOBBS PARK 10100 14.5 11.7 124 11.4 10.8 106 LITTLE WARM 9620 14.1 8.8 160 15.9 10.5 151 SOUTH PASS 9040 23.0 13.5 170 21.7 13.3 163 ST. LAWRENCE ALT 8620 7.7 6.0 128 9.2 7.7 119 TOGWOTEE PASS 9580 29.7 20.1 148 -M 23.9 * TOWNSEND CREEK 8700 8.6 7.7 112 9.9 9.4 105 ----- ----- Basin wide percent of average 145 134 BIGHORN BASIN BALD MTN. 9375 18.6 16.5 113 15.4 13.7 112 BEAR TRAP MEADOW 7900 6.0 5.7 105 6.2 6.1 102 BLACKWATER 9780 31.7 17.3 183 24.1 14.7 164 BONE SPRINGS DIV 9350 15.2 12.9 118 13.8 11.3 122 EVENING STAR 9200 35.5 21.8 163 -M 18.3 * GRAVE SPRINGS 8550 9.4 -M * 9.1 7.2 126 KIRWIN 9550 12.7 7.8 163 14.3 8.3 172 LOST CREEK 8080 12.0 10.2 118 12.2 9.0 136 MARQUETTE 8760 8.7 6.3 138 8.9 6.9 129 MIDDLE POWDER 7760 12.1 9.3 130 11.1 9.0 123 OWL CREEK 8975 6.3 3.5 180 5.2 4.7 111 POWDER RIVER PASS 9480 11.9 8.5 140 11.3 9.1 124 SHELL CREEK 9580 14.8 12.2 121 12.4 10.3 120 SYLVAN LAKE 8420 27.1 17.9 151 -M 15.7 * SYLVAN ROAD 8120 18.2 10.7 170 24.4 13.2 185 TIMBER CREEK 7950 5.6 4.7 119 6.3 4.9 129 YOUNTS PEAK 8350 20.0 14.3 140 -M 13.4 * ----- ----- Basin wide percent of average 143 136 SHOSHONE RIVER BLACKWATER 9780 31.7 17.3 183 24.1 14.7 164 EVENING STAR 9200 35.5 21.8 163 -M 18.3 * KIRWIN 9550 12.7 7.8 163 14.3 8.3 172 MARQUETTE 8760 8.7 6.3 138 8.9 6.9 129 SYLVAN LAKE 8420 27.1 17.9 151 -M 15.7 * SYLVAN ROAD 8120 18.2 10.7 170 24.4 13.2 185 YOUNTS PEAK 8350 20.0 14.3 140 -M 13.4 * ----- ----- Basin wide percent of average 160 166 POWDER-TONGUE BEAR TRAP MEADOW 7900 6.0 5.7 105 6.2 6.1 102 BONE SPRINGS DIV 9350 15.2 12.9 118 13.8 11.3 122 BURGESS JUNCTION 7880 10.3 9.3 111 10.4 8.3 125 CLOUD PEAK RESERVOIR 9860 14.8 10.6 140 12.4 9.9 125 DOME LAKE 8880 8.8 10.9 81 11.7 10.1 116 GRAVE SPRINGS 8550 9.4 -M * 9.1 7.2 126 HANSEN SAWMILL 8760 6.0 5.5 109 6.5 5.8 112 LOST CREEK 8080 12.0 10.2 118 12.2 9.0 136 MIDDLE POWDER 7760 12.1 9.3 130 11.1 9.0 123 POWDER RIVER PASS 9480 11.9 8.5 140 11.3 9.1 124 SUCKER CREEK 8880 11.7 9.3 126 11.6 10.2 114 TIE CREEK 6870 6.9 -M * 9.5 8.0 119 ----- ----- Basin wide percent of average 118 121 BELLE FOURCHE BLIND PARK 6890 9.6 8.8 109 13.8 7.3 189 NORTH RAPID CREEK 6130 9.7 -M * 12.2 -M * WARREN PEAK 6520 15.5 8.8 176 -M 6.0 * ----- ----- Basin wide percent of average 143 189* UPPER N. PLATTE RIVER COLUMBINE 9400 27.2 20.1 135 26.5 19.8 134 DIVIDE PEAK 8800 21.5 16.2 133 20.8 18.2 114 ELK RIVER 8700 24.9 16.0 156 22.6 15.0 151 JOE WRIGHT 10120 20.4 16.8 121 25.7 19.5 132 NORTH FRENCH CREEK 10100 31.1 19.6 159 25.4 18.2 140 OLD BATTLE 10000 33.9 25.2 135 28.1 23.6 119 SOUTH BRUSH CREEK 8400 13.7 9.0 152 15.5 12.5 124 TOWER 10500 49.3 36.0 137 36.2 28.9 125 WEBBER SPRINGS 9200 27.5 21.5 128 31.5 20.0 158 WILLOW CREEK PASS 9540 16.1 8.9 181 12.7 9.5 134 ----- ----- Basin wide percent of average 140 132 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 29.7 19.2 155 23.4 14.9 157 CASPER MTN. 7900 17.2 11.8 146 16.2 10.4 156 CHRISTINA LAKE 9980 17.6 12.3 143 19.5 12.9 151 DEADMAN HILL 10220 13.5 13.1 103 15.3 12.5 122 LAPRELE CREEK 8320 12.6 8.1 156 12.4 8.8 141 RENO HILL 8400 18.7 10.3 182 15.8 14.0 113 ROACH 9700 19.2 13.5 142 19.1 16.7 114 SAND LAKE 10080 31.6 25.8 122 25.0 15.9 157 SOUTH PASS 9040 23.0 13.5 170 21.7 13.3 163 WINDY PEAK 7840 9.0 5.9 153 10.0 6.9 145 ----- ----- Basin wide percent of average 144 141 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 15.3 9.4 163 16.3 12.3 133 DIVIDE PEAK 8800 21.5 16.2 133 20.8 18.2 114 OLD BATTLE 10000 33.9 25.2 135 28.1 23.6 119 SANDSTONE RS 8150 18.0 11.7 154 20.2 15.0 135 WHISKEY PARK 8950 34.0 22.7 150 29.5 22.1 133 ----- ----- Basin wide percent of average 144 126 UPPER GREEN RIVER BIG SANDY OPENING 9100 16.3 11.6 141 15.3 14.0 109 BLIND BULL SUM 8650 36.1 23.4 154 -M 20.3 * EAST RIM DIVIDE 7930 14.7 11.5 128 15.2 13.2 115 ELKHART PARK G.S. 9400 16.1 11.0 146 16.5 13.8 120 GROS VENTRE SUMMIT 8775 18.7 12.5 150 17.6 13.7 128 KENDALL R.S. 7740 21.1 12.0 176 17.1 13.4 128 LOOMIS PARK 8240 -M 14.4 * 19.4 16.3 119 NEW FORK LAKE 8340 12.9 9.5 136 11.8 12.5 94 SNIDER BASIN 8250 20.7 12.3 168 17.5 13.2 133 SPRING CREEK DIVIDE 9000 31.7 22.4 142 -M 23.3 * TRIPLE PEAK 8500 30.8 21.0 147 32.4 27.0 120 ----- ----- Basin wide percent of average 149 119 LOWER GREEN RIVER HAMS FORK 7840 15.5 10.1 153 13.3 11.5 116 HEWINTA 9500 11.5 8.1 142 12.3 9.9 124 HICKERSON PARK 9150 5.2 4.8 108 7.5 7.0 107 HOLE-IN-ROCK 9150 6.8 4.3 158 8.1 7.0 116 INDIAN CREEK 9425 34.9 22.1 158 28.4 21.8 130 KELLEY R.S. 8180 21.4 13.6 157 24.4 16.2 151 STEEL CREEK PARK 10100 13.6 12.0 113 13.3 10.0 133 ----- ----- Basin wide percent of average 145 129 UPPER BEAR RIVER BUG LAKE 7950 28.9 16.2 178 26.4 15.3 173 HAYDEN FORK 9400 18.2 13.1 139 22.7 14.6 155 KELLEY R.S. 8180 21.4 13.6 157 24.4 16.2 151 LILY LAKE 9050 15.8 10.2 155 17.2 11.3 152 MONTE CRISTO 8960 36.7 22.2 165 30.0 20.0 150 SALT RIVER SUMMIT 7600 19.5 11.6 168 21.1 14.6 145 TRIAL LAKE 9960 32.7 20.1 163 32.1 18.9 170 ----- ----- Basin wide percent of average 162 157 ----------------------------------------------------------------------------- -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.