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: MARCH 12 , 1997 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 28.7 16.5 174 32.7 21.1 155 COTTONWOOD CREEK 7600 29.1 20.9 139 30.2 23.5 129 GRANITE CREEK 6770 28.3 16.7 169 22.9 22.1 104 GRASSY LAKE 7265 43.7 32.3 135 39.0 34.5 113 GROS VENTRE SUMMIT 8775 20.6 14.1 146 19.3 14.9 130 LEWIS LAKE DIVIDE 7860 50.8 32.1 158 -M 35.0 * PHILLIPS BENCH 8200 39.1 26.4 148 42.8 27.7 155 SALT RIVER SUMMIT 7600 20.9 13.0 161 22.6 15.9 142 SNAKE RIVER STATION 6920 27.3 17.4 157 34.2 24.2 141 SPRING CREEK DIVIDE 9000 33.1 25.3 131 -M 25.5 * THUMB DIVIDE 7980 30.6 15.5 197 -M 19.7 * TOGWOTEE PASS 9580 32.3 22.4 144 -M 26.2 * TWO OCEAN PLATEAU 9360 41.5 24.2 171 -M 29.0 * WILLOW CREEK 8450 37.1 27.8 133 38.0 30.1 126 ----- ----- Basin wide percent of average 152 132 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 33.2 21.4 155 -M 16.2 * BLACK BEAR 7950 -M 34.5 * -M 36.4 * CANYON 7940 22.7 11.6 196 24.9 12.9 193 FISHER CREEK 9100 52.2 32.5 161 -M 33.0 * MADISON PLATEAU 7750 39.5 22.2 178 40.4 23.5 172 NORTHEAST ENTRANCE 7350 12.0 8.7 138 18.1 10.8 168 PARKER PEAK 9400 29.8 19.6 152 -M 14.0 * SYLVAN LAKE 8420 29.7 20.0 149 -M 17.4 * THUMB DIVIDE 7980 30.6 15.5 197 -M 19.7 * TWO OCEAN PLATEAU 9360 41.5 24.2 171 -M 29.0 * WHISKEY CREEK 6800 24.2 15.7 154 -M 19.5 * WHITE MILL 8700 35.9 23.0 156 -M 25.5 * WOLVERINE 7650 15.1 10.8 140 14.7 11.6 127 ----- ----- Basin wide percent of average 163 167* WIND RIVER BURROUGHS CREEK 8750 22.7 14.0 162 -M 15.0 * CHRISTINA LAKE 9980 18.7 13.7 136 20.0 14.5 138 COLD SPRINGS 9630 10.1 7.6 133 11.0 9.2 120 HOBBS PARK 10100 16.0 13.2 121 12.6 12.3 102 LITTLE WARM 9620 15.9 10.1 157 17.4 11.7 149 SOUTH PASS 9040 24.9 14.9 167 23.3 15.0 155 ST. LAWRENCE ALT 8620 8.6 6.8 126 9.9 8.8 112 TOGWOTEE PASS 9580 32.3 22.4 144 -M 26.2 * TOWNSEND CREEK 8700 9.7 8.8 110 10.9 10.8 101 ----- ----- Basin wide percent of average 143 128 BIGHORN BASIN BALD MTN. 9375 20.6 18.4 112 17.1 15.3 112 BEAR TRAP MEADOW 7900 7.8 6.4 122 8.1 7.0 116 BLACKWATER 9780 35.5 19.7 180 26.9 16.2 166 BONE SPRINGS DIV 9350 17.1 14.6 117 15.1 12.9 117 EVENING STAR 9200 39.1 24.3 161 -M 20.3 * GRAVE SPRINGS 8550 10.6 -M * 9.9 8.2 121 KIRWIN 9550 13.6 8.8 155 14.9 9.4 159 LOST CREEK 8080 14.1 11.7 121 13.9 10.2 136 MARQUETTE 8760 10.1 7.1 142 10.6 8.0 132 MIDDLE POWDER 7760 14.2 10.6 134 12.9 10.1 128 OWL CREEK 8975 7.5 4.0 188 6.2 5.4 115 POWDER RIVER PASS 9480 12.5 9.7 129 12.4 10.1 123 SHELL CREEK 9580 16.4 13.5 121 13.5 11.5 117 SYLVAN LAKE 8420 29.7 20.0 149 -M 17.4 * SYLVAN ROAD 8120 19.8 12.1 164 25.3 14.5 174 TIMBER CREEK 7950 6.9 5.5 125 7.4 5.8 128 YOUNTS PEAK 8350 22.3 15.7 142 -M 14.9 * ----- ----- Basin wide percent of average 142 134 SHOSHONE RIVER BLACKWATER 9780 35.5 19.7 180 26.9 16.2 166 EVENING STAR 9200 39.1 24.3 161 -M 20.3 * KIRWIN 9550 13.6 8.8 155 14.9 9.4 159 MARQUETTE 8760 10.1 7.1 142 10.6 8.0 132 SYLVAN LAKE 8420 29.7 20.0 149 -M 17.4 * SYLVAN ROAD 8120 19.8 12.1 164 25.3 14.5 174 YOUNTS PEAK 8350 22.3 15.7 142 -M 14.9 * ----- ----- Basin wide percent of average 158 162 POWDER-TONGUE BEAR TRAP MEADOW 7900 7.8 6.4 122 8.1 7.0 116 BONE SPRINGS DIV 9350 17.1 14.6 117 15.1 12.9 117 BURGESS JUNCTION 7880 11.6 10.5 110 11.8 9.6 123 CLOUD PEAK RESERVOIR 9860 16.3 12.6 129 13.4 11.4 118 DOME LAKE 8880 11.2 12.2 92 12.6 11.4 111 GRAVE SPRINGS 8550 10.6 -M * 9.9 8.2 121 HANSEN SAWMILL 8760 7.2 6.3 114 7.5 6.7 112 LOST CREEK 8080 14.1 11.7 121 13.9 10.2 136 MIDDLE POWDER 7760 14.2 10.6 134 12.9 10.1 128 POWDER RIVER PASS 9480 12.5 9.7 129 12.4 10.1 123 SUCKER CREEK 8880 12.9 10.6 122 13.2 11.4 116 TIE CREEK 6870 7.8 -M * 10.5 9.2 114 ----- ----- Basin wide percent of average 119 120 BELLE FOURCHE BLIND PARK 6890 9.8 9.9 99 13.9 8.5 164 NORTH RAPID CREEK 6130 -M -M * -M -M * WARREN PEAK 6520 16.7 9.9 169 -M 6.8 * ----- ----- Basin wide percent of average 134 164* UPPER N. PLATTE RIVER COLUMBINE 9400 28.7 22.9 125 28.9 21.9 132 DIVIDE PEAK 8800 23.4 18.3 128 23.0 20.2 114 ELK RIVER 8700 28.0 18.0 156 23.9 16.8 142 JOE WRIGHT 10120 21.5 19.1 113 26.5 21.9 121 NORTH FRENCH CREEK 10100 33.1 22.4 148 29.6 20.5 144 OLD BATTLE 10000 33.9 28.2 120 33.0 26.5 125 SOUTH BRUSH CREEK 8400 13.9 10.8 129 16.1 14.1 114 TOWER 10500 51.7 40.4 128 36.5 32.2 113 WEBBER SPRINGS 9200 29.4 24.3 121 33.6 22.3 151 WILLOW CREEK PASS 9540 16.6 10.2 163 13.7 10.9 126 ----- ----- Basin wide percent of average 131 128 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 31.4 22.0 143 24.2 16.9 143 CASPER MTN. 7900 19.1 13.6 140 17.9 11.9 150 CHRISTINA LAKE 9980 18.7 13.7 136 20.0 14.5 138 DEADMAN HILL 10220 14.6 14.7 99 16.6 14.3 116 LAPRELE CREEK 8320 14.3 9.2 155 13.5 10.1 134 RENO HILL 8400 19.9 12.0 166 17.2 16.2 106 ROACH 9700 20.0 15.3 131 20.4 18.6 110 SAND LAKE 10080 33.5 29.2 115 26.3 17.8 148 SOUTH PASS 9040 24.9 14.9 167 23.3 15.0 155 WINDY PEAK 7840 9.6 7.3 132 11.2 8.0 140 ----- ----- Basin wide percent of average 136 133 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 16.9 10.6 159 17.6 13.6 129 DIVIDE PEAK 8800 23.4 18.3 128 23.0 20.2 114 OLD BATTLE 10000 33.9 28.2 120 33.0 26.5 125 SANDSTONE RS 8150 19.5 13.3 147 21.3 16.5 129 WHISKEY PARK 8950 36.8 25.7 143 31.1 24.5 127 ----- ----- Basin wide percent of average 136 124 UPPER GREEN RIVER BIG SANDY OPENING 9100 18.4 13.1 140 16.7 15.2 110 BLIND BULL SUM 8650 39.6 26.5 149 31.3 22.3 140 EAST RIM DIVIDE 7930 16.3 12.9 126 16.5 14.3 115 ELKHART PARK G.S. 9400 17.5 12.5 140 17.5 15.0 117 GROS VENTRE SUMMIT 8775 20.6 14.1 146 19.3 14.9 130 KENDALL R.S. 7740 23.7 14.0 169 18.3 14.6 125 LOOMIS PARK 8240 -M 16.2 * 20.6 17.7 116 NEW FORK LAKE 8340 14.3 10.5 136 12.9 13.6 95 SNIDER BASIN 8250 22.1 13.7 161 18.7 14.3 131 SPRING CREEK DIVIDE 9000 33.1 25.3 131 -M 25.5 * TRIPLE PEAK 8500 33.7 23.4 144 35.1 29.2 120 ----- ----- Basin wide percent of average 144 121 LOWER GREEN RIVER HAMS FORK 7840 17.6 11.6 152 14.3 12.5 114 HEWINTA 9500 12.6 9.7 130 13.6 11.2 121 HICKERSON PARK 9150 7.3 5.6 130 8.9 8.0 111 HOLE-IN-ROCK 9150 8.2 5.3 155 9.3 8.0 116 INDIAN CREEK 9425 37.6 25.4 148 30.3 24.0 126 KELLEY R.S. 8180 23.4 15.5 151 24.8 17.7 140 STEEL CREEK PARK 10100 15.3 13.9 110 14.9 11.2 133 ----- ----- Basin wide percent of average 140 125 UPPER BEAR RIVER BUG LAKE 7950 31.8 18.5 172 28.6 17.2 166 HAYDEN FORK 9400 19.9 15.0 133 24.6 16.6 148 KELLEY R.S. 8180 23.4 15.5 151 24.8 17.7 140 LILY LAKE 9050 17.2 11.5 150 18.6 12.8 145 MONTE CRISTO 8960 39.8 25.8 154 32.0 22.5 142 SALT RIVER SUMMIT 7600 20.9 13.0 161 22.6 15.9 142 TRIAL LAKE 9960 35.2 23.2 152 34.0 21.2 160 ----- ----- Basin wide percent of average 154 149 ----------------------------------------------------------------------------- -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.