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 19 , 1997 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 29.7 17.0 175 33.6 21.7 155 COTTONWOOD CREEK 7600 30.3 22.3 136 30.9 24.3 127 GRANITE CREEK 6770 28.1 17.5 161 24.8 22.8 109 GRASSY LAKE 7265 44.9 33.8 133 39.9 35.8 111 GROS VENTRE SUMMIT 8775 21.4 14.7 146 20.3 15.4 132 LEWIS LAKE DIVIDE 7860 51.8 33.5 155 -M 36.3 * PHILLIPS BENCH 8200 40.6 27.6 147 43.9 28.7 153 SALT RIVER SUMMIT 7600 21.6 13.6 159 23.3 16.4 142 SNAKE RIVER STATION 6920 27.9 18.0 155 35.2 25.1 140 SPRING CREEK DIVIDE 9000 33.8 26.4 128 32.2 26.4 122 THUMB DIVIDE 7980 31.5 16.1 196 -M 20.3 * TOGWOTEE PASS 9580 33.5 23.4 143 -M 27.2 * TWO OCEAN PLATEAU 9360 43.0 25.2 171 -M 29.8 * WILLOW CREEK 8450 40.6 28.9 140 38.9 31.1 125 ----- ----- Basin wide percent of average 151 130 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 33.1 22.3 148 -M 16.9 * BLACK BEAR 7950 -M 36.0 * -M 38.1 * CANYON 7940 23.4 12.2 192 25.8 13.4 193 FISHER CREEK 9100 54.7 33.8 162 -M 34.4 * MADISON PLATEAU 7750 41.0 23.2 177 40.7 24.6 165 NORTHEAST ENTRANCE 7350 12.5 8.9 140 18.8 11.2 168 PARKER PEAK 9400 30.6 20.4 150 -M 14.6 * SYLVAN LAKE 8420 30.4 20.8 146 -M 18.0 * THUMB DIVIDE 7980 31.5 16.1 196 -M 20.3 * TWO OCEAN PLATEAU 9360 43.0 25.2 171 -M 29.8 * WHISKEY CREEK 6800 25.0 16.4 152 30.9 20.4 151 WHITE MILL 8700 37.6 23.9 157 -M 26.6 * WOLVERINE 7650 15.6 11.2 139 15.1 12.0 126 ----- ----- Basin wide percent of average 161 161* WIND RIVER BURROUGHS CREEK 8750 23.4 14.4 162 -M 15.6 * CHRISTINA LAKE 9980 18.7 14.3 131 21.5 15.3 141 COLD SPRINGS 9630 10.2 7.9 129 11.2 9.7 115 HOBBS PARK 10100 16.5 13.9 119 12.8 12.9 99 LITTLE WARM 9620 16.0 10.7 150 18.0 12.3 146 SOUTH PASS 9040 25.5 15.5 165 23.9 15.7 152 ST. LAWRENCE ALT 8620 8.5 7.1 120 10.0 9.3 108 TOGWOTEE PASS 9580 33.5 23.4 143 -M 27.2 * TOWNSEND CREEK 8700 9.7 9.2 105 11.0 11.4 96 ----- ----- Basin wide percent of average 139 125 BIGHORN BASIN BALD MTN. 9375 20.9 19.2 109 17.3 16.0 108 BEAR TRAP MEADOW 7900 7.8 6.7 116 8.2 7.4 111 BLACKWATER 9780 36.6 20.7 177 27.8 16.9 164 BONE SPRINGS DIV 9350 17.5 15.3 114 15.4 13.7 112 EVENING STAR 9200 40.1 25.4 158 -M 21.1 * GRAVE SPRINGS 8550 10.9 -M * 10.1 8.7 116 KIRWIN 9550 14.0 9.2 152 15.2 9.9 154 LOST CREEK 8080 14.1 12.4 114 14.2 10.8 131 MARQUETTE 8760 10.3 7.5 137 10.8 8.5 127 MIDDLE POWDER 7760 14.6 11.2 130 13.1 10.7 122 OWL CREEK 8975 7.7 4.2 183 6.5 5.7 114 POWDER RIVER PASS 9480 12.5 10.1 124 12.6 10.6 119 SHELL CREEK 9580 16.7 14.1 118 13.9 12.1 115 SYLVAN LAKE 8420 30.4 20.8 146 -M 18.0 * SYLVAN ROAD 8120 20.3 12.3 165 25.8 15.1 171 TIMBER CREEK 7950 6.9 5.8 119 7.5 6.2 121 YOUNTS PEAK 8350 23.1 16.3 142 -M 15.5 * ----- ----- Basin wide percent of average 139 130 SHOSHONE RIVER BLACKWATER 9780 36.6 20.7 177 27.8 16.9 164 EVENING STAR 9200 40.1 25.4 158 -M 21.1 * KIRWIN 9550 14.0 9.2 152 15.2 9.9 154 MARQUETTE 8760 10.3 7.5 137 10.8 8.5 127 SYLVAN LAKE 8420 30.4 20.8 146 -M 18.0 * SYLVAN ROAD 8120 20.3 12.3 165 25.8 15.1 171 YOUNTS PEAK 8350 23.1 16.3 142 -M 15.5 * ----- ----- Basin wide percent of average 156 158 POWDER-TONGUE BEAR TRAP MEADOW 7900 7.8 6.7 116 8.2 7.4 111 BONE SPRINGS DIV 9350 17.5 15.3 114 15.4 13.7 112 BURGESS JUNCTION 7880 11.9 11.0 108 12.1 10.3 117 CLOUD PEAK RESERVOIR 9860 16.6 13.4 124 13.8 12.0 115 DOME LAKE 8880 12.2 12.8 95 13.1 12.0 109 GRAVE SPRINGS 8550 10.9 -M * 10.1 8.7 116 HANSEN SAWMILL 8760 7.1 6.6 108 7.8 7.1 110 LOST CREEK 8080 14.1 12.4 114 14.2 10.8 131 MIDDLE POWDER 7760 14.6 11.2 130 13.1 10.7 122 POWDER RIVER PASS 9480 12.5 10.1 124 12.6 10.6 119 SUCKER CREEK 8880 13.1 11.2 117 13.7 12.0 114 TIE CREEK 6870 7.9 -M * 10.8 9.8 110 ----- ----- Basin wide percent of average 115 116 BELLE FOURCHE BLIND PARK 6890 10.0 10.3 97 14.0 9.0 156 NORTH RAPID CREEK 6130 -M -M * -M -M * WARREN PEAK 6520 17.0 10.3 165 -M 7.2 * ----- ----- Basin wide percent of average 131 156* UPPER N. PLATTE RIVER COLUMBINE 9400 29.6 23.8 124 29.4 22.8 129 DIVIDE PEAK 8800 24.6 19.3 127 23.8 21.1 113 ELK RIVER 8700 27.1 18.8 144 24.2 17.6 138 JOE WRIGHT 10120 21.9 20.2 108 27.4 23.0 119 NORTH FRENCH CREEK 10100 33.8 23.5 144 30.0 21.6 139 OLD BATTLE 10000 33.9 29.5 115 33.6 27.8 121 SOUTH BRUSH CREEK 8400 14.1 11.7 121 16.7 14.9 112 TOWER 10500 52.4 42.2 124 36.8 33.6 110 WEBBER SPRINGS 9200 30.0 25.7 117 34.3 23.3 147 WILLOW CREEK PASS 9540 16.8 10.9 154 13.9 11.5 121 ----- ----- Basin wide percent of average 126 124 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 32.7 23.5 139 24.9 17.8 140 CASPER MTN. 7900 19.3 14.5 133 18.1 12.7 143 CHRISTINA LAKE 9980 18.7 14.3 131 21.5 15.3 141 DEADMAN HILL 10220 15.1 15.4 98 17.2 15.1 114 LAPRELE CREEK 8320 14.3 9.7 147 13.6 10.7 127 RENO HILL 8400 20.2 12.8 158 17.5 17.3 101 ROACH 9700 21.8 16.0 136 20.8 19.5 107 SAND LAKE 10080 34.8 30.6 114 27.4 18.7 147 SOUTH PASS 9040 25.5 15.5 165 23.9 15.7 152 WINDY PEAK 7840 10.0 7.9 127 11.4 8.5 134 ----- ----- Basin wide percent of average 133 130 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 16.1 10.9 148 19.8 14.2 139 DIVIDE PEAK 8800 24.6 19.3 127 23.8 21.1 113 OLD BATTLE 10000 33.9 29.5 115 33.6 27.8 121 SANDSTONE RS 8150 19.7 13.9 142 21.6 17.3 125 WHISKEY PARK 8950 37.1 26.9 138 31.7 25.8 123 ----- ----- Basin wide percent of average 131 123 UPPER GREEN RIVER BIG SANDY OPENING 9100 18.9 13.7 138 16.4 15.7 104 BLIND BULL SUM 8650 41.1 27.7 148 32.4 23.1 140 EAST RIM DIVIDE 7930 16.7 13.4 125 17.0 14.7 116 ELKHART PARK G.S. 9400 18.0 13.1 137 18.1 15.5 117 GROS VENTRE SUMMIT 8775 21.4 14.7 146 20.3 15.4 132 KENDALL R.S. 7740 24.2 14.5 167 19.1 15.1 126 LOOMIS PARK 8240 -M 16.8 * 20.9 18.3 114 NEW FORK LAKE 8340 14.6 10.8 135 13.2 14.0 94 SNIDER BASIN 8250 23.2 14.2 163 19.0 14.7 129 SPRING CREEK DIVIDE 9000 33.8 26.4 128 32.2 26.4 122 TRIPLE PEAK 8500 34.8 24.3 143 35.4 30.1 118 ----- ----- Basin wide percent of average 143 120 LOWER GREEN RIVER HAMS FORK 7840 17.3 12.0 144 14.7 12.9 114 HEWINTA 9500 13.0 10.4 125 13.7 11.9 115 HICKERSON PARK 9150 7.8 6.1 128 8.8 8.5 104 HOLE-IN-ROCK 9150 7.5 5.7 132 9.3 8.5 109 INDIAN CREEK 9425 38.4 26.8 143 31.1 24.9 125 KELLEY R.S. 8180 23.4 16.2 144 24.9 18.2 137 STEEL CREEK PARK 10100 15.4 14.8 104 15.0 11.8 127 ----- ----- Basin wide percent of average 133 122 UPPER BEAR RIVER BUG LAKE 7950 32.6 19.5 167 29.2 18.0 162 HAYDEN FORK 9400 19.6 15.7 125 24.7 17.5 141 KELLEY R.S. 8180 23.4 16.2 144 24.9 18.2 137 LILY LAKE 9050 19.1 12.2 157 18.8 13.5 139 MONTE CRISTO 8960 37.9 27.2 139 32.6 23.6 138 SALT RIVER SUMMIT 7600 21.6 13.6 159 23.3 16.4 142 TRIAL LAKE 9960 35.7 24.0 149 34.2 22.2 154 ----- ----- Basin wide percent of average 148 145 ----------------------------------------------------------------------------- -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.