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: MARCH 17 , 1997 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 29.5 16.8 176 33.0 21.5 153 COTTONWOOD CREEK 7600 29.6 21.9 135 30.5 24.1 127 GRANITE CREEK 6770 29.2 17.3 169 23.3 22.6 103 GRASSY LAKE 7265 44.5 33.4 133 39.2 35.4 111 GROS VENTRE SUMMIT 8775 21.4 14.6 147 20.0 15.3 131 LEWIS LAKE DIVIDE 7860 51.4 33.1 155 -M 35.9 * PHILLIPS BENCH 8200 40.3 27.3 148 43.6 28.4 154 SALT RIVER SUMMIT 7600 21.3 13.4 159 23.1 16.2 143 SNAKE RIVER STATION 6920 27.9 17.8 157 35.0 24.8 141 SPRING CREEK DIVIDE 9000 33.4 26.1 128 -M 26.2 * THUMB DIVIDE 7980 31.4 16.0 196 -M 20.1 * TOGWOTEE PASS 9580 33.3 23.2 144 -M 26.9 * TWO OCEAN PLATEAU 9360 42.5 24.9 171 -M 29.6 * WILLOW CREEK 8450 40.1 28.6 140 38.6 30.8 125 ----- ----- Basin wide percent of average 151 131 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 33.8 22.0 154 -M 16.7 * BLACK BEAR 7950 -M 35.6 * -M 37.6 * CANYON 7940 23.2 12.0 193 25.1 13.3 189 FISHER CREEK 9100 53.8 33.5 161 -M 34.0 * MADISON PLATEAU 7750 40.5 22.9 177 40.6 24.3 167 NORTHEAST ENTRANCE 7350 12.3 8.8 140 18.6 11.1 168 PARKER PEAK 9400 30.4 20.2 150 -M 14.4 * SYLVAN LAKE 8420 30.3 20.6 147 -M 17.8 * THUMB DIVIDE 7980 31.4 16.0 196 -M 20.1 * TWO OCEAN PLATEAU 9360 42.5 24.9 171 -M 29.6 * WHISKEY CREEK 6800 24.8 16.2 153 30.5 20.2 151 WHITE MILL 8700 36.8 23.7 155 -M 26.3 * WOLVERINE 7650 15.4 11.1 139 15.2 11.9 128 ----- ----- Basin wide percent of average 162 161* WIND RIVER BURROUGHS CREEK 8750 23.3 14.3 163 -M 15.4 * CHRISTINA LAKE 9980 18.5 14.2 130 21.3 15.1 141 COLD SPRINGS 9630 10.3 7.8 132 11.2 9.5 118 HOBBS PARK 10100 16.5 13.7 120 12.8 12.7 101 LITTLE WARM 9620 16.2 10.5 154 18.0 12.1 149 SOUTH PASS 9040 25.2 15.3 165 23.6 15.5 152 ST. LAWRENCE ALT 8620 8.6 7.1 121 10.0 9.1 110 TOGWOTEE PASS 9580 33.3 23.2 144 -M 26.9 * TOWNSEND CREEK 8700 9.8 9.1 108 11.1 11.2 99 ----- ----- Basin wide percent of average 140 127 BIGHORN BASIN BALD MTN. 9375 20.8 19.0 109 17.2 15.8 109 BEAR TRAP MEADOW 7900 7.6 6.6 115 8.1 7.3 111 BLACKWATER 9780 36.4 20.5 178 27.6 16.7 165 BONE SPRINGS DIV 9350 17.5 15.1 116 15.3 13.5 113 EVENING STAR 9200 40.0 25.1 159 -M 20.9 * GRAVE SPRINGS 8550 10.6 -M * 10.0 8.5 118 KIRWIN 9550 13.9 9.1 153 15.1 9.7 156 LOST CREEK 8080 14.1 12.2 116 14.1 10.6 133 MARQUETTE 8760 10.3 7.4 139 10.8 8.3 130 MIDDLE POWDER 7760 14.6 11.1 132 13.1 10.5 125 OWL CREEK 8975 7.8 4.2 186 6.4 5.6 114 POWDER RIVER PASS 9480 12.7 10.0 127 12.6 10.5 120 SHELL CREEK 9580 16.7 13.9 120 13.9 11.9 117 SYLVAN LAKE 8420 30.3 20.6 147 -M 17.8 * SYLVAN ROAD 8120 20.2 12.3 164 25.7 14.9 172 TIMBER CREEK 7950 7.0 5.7 123 7.5 6.1 123 YOUNTS PEAK 8350 22.9 16.2 141 -M 15.3 * ----- ----- Basin wide percent of average 140 132 SHOSHONE RIVER BLACKWATER 9780 36.4 20.5 178 27.6 16.7 165 EVENING STAR 9200 40.0 25.1 159 -M 20.9 * KIRWIN 9550 13.9 9.1 153 15.1 9.7 156 MARQUETTE 8760 10.3 7.4 139 10.8 8.3 130 SYLVAN LAKE 8420 30.3 20.6 147 -M 17.8 * SYLVAN ROAD 8120 20.2 12.3 164 25.7 14.9 172 YOUNTS PEAK 8350 22.9 16.2 141 -M 15.3 * ----- ----- Basin wide percent of average 156 160 POWDER-TONGUE BEAR TRAP MEADOW 7900 7.6 6.6 115 8.1 7.3 111 BONE SPRINGS DIV 9350 17.5 15.1 116 15.3 13.5 113 BURGESS JUNCTION 7880 11.8 10.8 109 12.1 10.1 120 CLOUD PEAK RESERVOIR 9860 16.6 13.2 126 13.7 11.8 116 DOME LAKE 8880 12.0 12.7 94 13.1 11.8 111 GRAVE SPRINGS 8550 10.6 -M * 10.0 8.5 118 HANSEN SAWMILL 8760 7.0 6.6 106 7.8 7.0 111 LOST CREEK 8080 14.1 12.2 116 14.1 10.6 133 MIDDLE POWDER 7760 14.6 11.1 132 13.1 10.5 125 POWDER RIVER PASS 9480 12.7 10.0 127 12.6 10.5 120 SUCKER CREEK 8880 13.2 11.1 119 13.7 11.8 116 TIE CREEK 6870 7.9 -M * 10.7 9.6 111 ----- ----- Basin wide percent of average 116 117 BELLE FOURCHE BLIND PARK 6890 9.6 10.2 94 13.9 8.8 158 NORTH RAPID CREEK 6130 -M -M * -M -M * WARREN PEAK 6520 16.7 10.2 164 -M 7.1 * ----- ----- Basin wide percent of average 129 158* UPPER N. PLATTE RIVER COLUMBINE 9400 29.6 23.6 125 29.3 22.6 130 DIVIDE PEAK 8800 24.3 19.0 128 23.6 20.8 113 ELK RIVER 8700 27.1 18.6 146 24.1 17.4 139 JOE WRIGHT 10120 19.9 19.9 100 27.4 22.7 121 NORTH FRENCH CREEK 10100 33.7 23.2 145 30.0 21.3 141 OLD BATTLE 10000 33.9 29.1 116 33.5 27.4 122 SOUTH BRUSH CREEK 8400 14.1 11.5 123 16.6 14.7 113 TOWER 10500 52.1 41.7 125 36.7 33.2 111 WEBBER SPRINGS 9200 29.9 25.3 118 34.2 23.0 149 WILLOW CREEK PASS 9540 16.8 10.7 157 14.1 11.3 125 ----- ----- Basin wide percent of average 126 126 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 32.6 23.0 142 24.7 17.5 141 CASPER MTN. 7900 19.2 14.2 135 17.9 12.5 143 CHRISTINA LAKE 9980 18.5 14.2 130 21.3 15.1 141 DEADMAN HILL 10220 15.1 15.2 99 17.1 14.9 115 LAPRELE CREEK 8320 14.1 9.5 148 13.6 10.5 130 RENO HILL 8400 20.1 12.5 161 17.3 17.0 102 ROACH 9700 21.3 15.8 135 20.8 19.3 108 SAND LAKE 10080 34.6 30.2 115 27.3 18.5 148 SOUTH PASS 9040 25.2 15.3 165 23.6 15.5 152 WINDY PEAK 7840 9.6 7.7 125 11.4 8.3 137 ----- ----- Basin wide percent of average 133 131 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 16.7 10.9 153 18.4 14.0 131 DIVIDE PEAK 8800 24.3 19.0 128 23.6 20.8 113 OLD BATTLE 10000 33.9 29.1 116 33.5 27.4 122 SANDSTONE RS 8150 19.7 13.8 143 21.5 17.1 126 WHISKEY PARK 8950 36.8 26.6 138 31.4 25.4 124 ----- ----- Basin wide percent of average 132 123 UPPER GREEN RIVER BIG SANDY OPENING 9100 18.6 13.6 137 14.9 15.6 96 BLIND BULL SUM 8650 40.6 27.4 148 32.0 22.9 140 EAST RIM DIVIDE 7930 16.7 13.3 126 16.9 14.6 116 ELKHART PARK G.S. 9400 17.9 12.9 139 17.9 15.3 117 GROS VENTRE SUMMIT 8775 21.4 14.6 147 20.0 15.3 131 KENDALL R.S. 7740 24.3 14.4 169 18.8 14.9 126 LOOMIS PARK 8240 -M 16.6 * 20.8 18.1 115 NEW FORK LAKE 8340 14.4 10.8 133 13.1 13.9 94 SNIDER BASIN 8250 22.9 14.1 162 18.9 14.6 129 SPRING CREEK DIVIDE 9000 33.4 26.1 128 -M 26.2 * TRIPLE PEAK 8500 34.6 24.0 144 35.3 29.9 118 ----- ----- Basin wide percent of average 143 119 LOWER GREEN RIVER HAMS FORK 7840 17.0 11.9 143 14.5 12.8 113 HEWINTA 9500 12.9 10.2 126 13.6 11.7 116 HICKERSON PARK 9150 7.6 5.9 129 8.8 8.4 105 HOLE-IN-ROCK 9150 7.3 5.6 130 9.3 8.4 111 INDIAN CREEK 9425 38.1 26.4 144 30.7 24.6 125 KELLEY R.S. 8180 23.1 16.1 143 24.9 18.0 138 STEEL CREEK PARK 10100 15.3 14.6 105 15.0 11.6 129 ----- ----- Basin wide percent of average 134 122 UPPER BEAR RIVER BUG LAKE 7950 32.0 19.2 167 28.7 17.8 161 HAYDEN FORK 9400 19.3 15.5 125 24.6 17.2 143 KELLEY R.S. 8180 23.1 16.1 143 24.9 18.0 138 LILY LAKE 9050 17.6 12.0 147 18.6 13.3 140 MONTE CRISTO 8960 39.9 26.8 149 32.0 23.3 137 SALT RIVER SUMMIT 7600 21.3 13.4 159 23.1 16.2 143 TRIAL LAKE 9960 35.8 23.9 150 34.0 21.9 155 ----- ----- Basin wide percent of average 149 146 ----------------------------------------------------------------------------- -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.