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 FRIDAY: MARCH 7 , 1997 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 27.9 16.1 173 27.6 20.6 134 COTTONWOOD CREEK 7600 28.1 19.8 142 28.7 23.0 125 GRANITE CREEK 6770 27.8 16.1 173 22.3 21.7 103 GRASSY LAKE 7265 42.8 31.1 138 38.6 33.6 115 GROS VENTRE SUMMIT 8775 20.3 13.5 150 19.0 14.6 130 LEWIS LAKE DIVIDE 7860 50.3 30.9 163 -M 34.1 * PHILLIPS BENCH 8200 38.2 25.4 150 42.1 27.0 156 SALT RIVER SUMMIT 7600 20.9 12.6 166 22.4 15.5 145 SNAKE RIVER STATION 6920 26.9 16.8 160 33.8 23.6 143 SPRING CREEK DIVIDE 9000 32.9 24.4 135 -M 24.9 * THUMB DIVIDE 7980 30.0 14.9 201 -M 19.3 * TOGWOTEE PASS 9580 31.8 21.7 147 -M 25.5 * TWO OCEAN PLATEAU 9360 40.6 23.3 174 -M 28.4 * WILLOW CREEK 8450 34.5 26.9 128 37.2 29.4 127 ----- ----- Basin wide percent of average 154 130 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 32.7 20.7 158 -M 15.7 * BLACK BEAR 7950 -M 33.2 * -M 35.2 * CANYON 7940 22.5 11.2 201 24.2 12.5 194 FISHER CREEK 9100 51.4 31.5 163 -M 31.9 * MADISON PLATEAU 7750 39.0 21.5 181 38.3 22.7 169 NORTHEAST ENTRANCE 7350 11.7 8.4 139 17.9 10.5 170 PARKER PEAK 9400 29.2 18.9 154 -M 13.6 * SYLVAN LAKE 8420 29.2 19.3 151 -M 16.9 * THUMB DIVIDE 7980 30.0 14.9 201 -M 19.3 * TWO OCEAN PLATEAU 9360 40.6 23.3 174 -M 28.4 * WHISKEY CREEK 6800 24.1 15.1 160 -M 18.8 * WHITE MILL 8700 35.2 22.2 159 -M 24.7 * WOLVERINE 7650 15.2 10.5 145 14.4 11.3 127 ----- ----- Basin wide percent of average 166 166* WIND RIVER BURROUGHS CREEK 8750 22.4 13.6 165 -M 14.5 * CHRISTINA LAKE 9980 18.8 13.3 141 19.5 14.0 139 COLD SPRINGS 9630 10.0 7.3 137 11.0 8.8 125 HOBBS PARK 10100 15.9 12.7 125 12.5 11.8 106 LITTLE WARM 9620 15.5 9.7 160 17.0 11.3 150 SOUTH PASS 9040 24.7 14.5 170 23.1 14.4 160 ST. LAWRENCE ALT 8620 8.6 6.5 132 9.9 8.4 118 TOGWOTEE PASS 9580 31.8 21.7 147 -M 25.5 * TOWNSEND CREEK 8700 9.6 8.4 114 10.8 10.3 105 ----- ----- Basin wide percent of average 146 131 BIGHORN BASIN BALD MTN. 9375 20.1 17.8 113 16.7 14.7 114 BEAR TRAP MEADOW 7900 7.5 6.2 121 7.9 6.7 118 BLACKWATER 9780 34.3 18.9 181 25.9 15.8 164 BONE SPRINGS DIV 9350 16.7 14.0 119 14.9 12.4 120 EVENING STAR 9200 38.0 23.5 162 -M 19.7 * GRAVE SPRINGS 8550 10.4 -M * 9.8 7.8 126 KIRWIN 9550 13.5 8.5 159 14.9 9.0 166 LOST CREEK 8080 13.8 11.3 122 13.7 9.8 140 MARQUETTE 8760 9.8 6.8 144 10.3 7.6 136 MIDDLE POWDER 7760 13.8 10.2 135 12.6 9.7 130 OWL CREEK 8975 7.3 3.9 187 6.1 5.2 117 POWDER RIVER PASS 9480 12.4 9.3 133 12.1 9.8 123 SHELL CREEK 9580 16.0 13.1 122 13.1 11.1 118 SYLVAN LAKE 8420 29.2 19.3 151 -M 16.9 * SYLVAN ROAD 8120 19.4 11.7 166 25.1 14.1 178 TIMBER CREEK 7950 6.6 5.2 127 7.1 5.5 129 YOUNTS PEAK 8350 21.6 15.3 141 -M 14.4 * ----- ----- Basin wide percent of average 144 137 SHOSHONE RIVER BLACKWATER 9780 34.3 18.9 181 25.9 15.8 164 EVENING STAR 9200 38.0 23.5 162 -M 19.7 * KIRWIN 9550 13.5 8.5 159 14.9 9.0 166 MARQUETTE 8760 9.8 6.8 144 10.3 7.6 136 SYLVAN LAKE 8420 29.2 19.3 151 -M 16.9 * SYLVAN ROAD 8120 19.4 11.7 166 25.1 14.1 178 YOUNTS PEAK 8350 21.6 15.3 141 -M 14.4 * ----- ----- Basin wide percent of average 159 164 POWDER-TONGUE BEAR TRAP MEADOW 7900 7.5 6.2 121 7.9 6.7 118 BONE SPRINGS DIV 9350 16.7 14.0 119 14.9 12.4 120 BURGESS JUNCTION 7880 11.2 10.1 111 11.4 9.2 124 CLOUD PEAK RESERVOIR 9860 15.7 11.9 132 13.0 10.9 119 DOME LAKE 8880 10.9 11.8 92 12.3 10.9 113 GRAVE SPRINGS 8550 10.4 -M * 9.8 7.8 126 HANSEN SAWMILL 8760 6.8 6.0 113 7.1 6.4 111 LOST CREEK 8080 13.8 11.3 122 13.7 9.8 140 MIDDLE POWDER 7760 13.8 10.2 135 12.6 9.7 130 POWDER RIVER PASS 9480 12.4 9.3 133 12.1 9.8 123 SUCKER CREEK 8880 12.6 10.2 124 12.7 11.0 115 TIE CREEK 6870 7.6 -M * 10.3 8.7 118 ----- ----- Basin wide percent of average 120 122 BELLE FOURCHE BLIND PARK 6890 9.9 9.5 104 13.9 8.1 172 NORTH RAPID CREEK 6130 10.0 -M * 12.4 -M * WARREN PEAK 6520 16.6 9.5 175 -M 6.5 * ----- ----- Basin wide percent of average 139 172* UPPER N. PLATTE RIVER COLUMBINE 9400 28.2 22.0 128 27.0 21.3 127 DIVIDE PEAK 8800 23.1 17.6 131 22.6 19.5 116 ELK RIVER 8700 26.7 17.4 153 23.3 16.2 144 JOE WRIGHT 10120 21.3 18.3 116 26.5 21.1 126 NORTH FRENCH CREEK 10100 31.9 21.5 148 29.4 19.8 148 OLD BATTLE 10000 33.9 27.3 124 32.6 25.6 127 SOUTH BRUSH CREEK 8400 13.6 10.2 133 15.9 13.6 117 TOWER 10500 51.4 39.0 132 36.3 31.2 116 WEBBER SPRINGS 9200 29.2 23.4 125 33.2 21.6 154 WILLOW CREEK PASS 9540 16.6 9.8 169 13.7 10.4 132 ----- ----- Basin wide percent of average 134 130 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 30.9 21.1 146 23.9 16.3 147 CASPER MTN. 7900 19.0 13.0 146 17.7 11.4 155 CHRISTINA LAKE 9980 18.8 13.3 141 19.5 14.0 139 DEADMAN HILL 10220 14.4 14.1 102 16.3 13.7 119 LAPRELE CREEK 8320 14.0 8.8 159 13.3 9.6 139 RENO HILL 8400 19.7 11.4 173 17.0 15.5 110 ROACH 9700 19.9 14.7 135 20.3 18.0 113 SAND LAKE 10080 33.0 28.1 117 26.0 17.2 151 SOUTH PASS 9040 24.7 14.5 170 23.1 14.4 160 WINDY PEAK 7840 9.4 6.8 138 10.9 7.6 143 ----- ----- Basin wide percent of average 140 137 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 16.4 10.3 159 17.1 13.1 131 DIVIDE PEAK 8800 23.1 17.6 131 22.6 19.5 116 OLD BATTLE 10000 33.9 27.3 124 32.6 25.6 127 SANDSTONE RS 8150 19.4 12.8 152 21.1 16.0 132 WHISKEY PARK 8950 35.8 24.8 144 30.5 23.6 129 ----- ----- Basin wide percent of average 139 127 UPPER GREEN RIVER BIG SANDY OPENING 9100 18.1 12.7 143 16.5 14.9 111 BLIND BULL SUM 8650 38.6 25.5 151 -M 21.7 * EAST RIM DIVIDE 7930 16.0 12.5 128 16.3 14.0 116 ELKHART PARK G.S. 9400 17.1 12.0 143 16.8 14.7 114 GROS VENTRE SUMMIT 8775 20.3 13.5 150 19.0 14.6 130 KENDALL R.S. 7740 23.0 13.3 173 17.4 14.3 122 LOOMIS PARK 8240 -M 15.6 * 19.8 17.3 114 NEW FORK LAKE 8340 13.7 10.2 134 12.6 13.3 95 SNIDER BASIN 8250 21.6 13.3 162 18.4 14.0 131 SPRING CREEK DIVIDE 9000 32.9 24.4 135 -M 24.9 * TRIPLE PEAK 8500 32.6 22.6 144 34.4 28.6 120 ----- ----- Basin wide percent of average 146 118 LOWER GREEN RIVER HAMS FORK 7840 16.5 11.1 149 14.2 12.2 116 HEWINTA 9500 12.9 9.1 142 13.5 10.8 125 HICKERSON PARK 9150 7.5 5.3 142 8.8 7.6 116 HOLE-IN-ROCK 9150 7.9 4.9 161 9.2 7.6 121 INDIAN CREEK 9425 37.1 24.3 153 30.0 23.3 129 KELLEY R.S. 8180 22.6 14.9 152 24.4 17.3 141 STEEL CREEK PARK 10100 15.2 13.3 114 14.8 10.8 137 ----- ----- Basin wide percent of average 144 128 UPPER BEAR RIVER BUG LAKE 7950 31.3 17.8 176 28.0 16.6 169 HAYDEN FORK 9400 20.0 14.4 139 24.3 16.0 152 KELLEY R.S. 8180 22.6 14.9 152 24.4 17.3 141 LILY LAKE 9050 16.8 11.1 151 18.5 12.3 150 MONTE CRISTO 8960 39.1 24.7 158 31.4 21.7 145 SALT RIVER SUMMIT 7600 20.9 12.6 166 22.4 15.5 145 TRIAL LAKE 9960 34.8 22.3 156 34.0 20.5 166 ----- ----- Basin wide percent of average 157 153 ----------------------------------------------------------------------------- -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.