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 SATURDAY: MARCH 15 , 1997 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 28.8 16.7 172 32.6 21.3 153 COTTONWOOD CREEK 7600 29.2 21.6 135 30.5 23.8 128 GRANITE CREEK 6770 28.6 17.1 167 23.2 22.4 104 GRASSY LAKE 7265 43.8 33.0 133 38.9 35.0 111 GROS VENTRE SUMMIT 8775 20.8 14.4 144 19.4 15.1 128 LEWIS LAKE DIVIDE 7860 50.1 32.8 153 -M 35.6 * PHILLIPS BENCH 8200 39.1 27.0 145 42.8 28.1 152 SALT RIVER SUMMIT 7600 21.3 13.3 160 22.4 16.1 139 SNAKE RIVER STATION 6920 27.4 17.7 155 34.4 24.6 140 SPRING CREEK DIVIDE 9000 33.2 25.8 129 -M 25.9 * THUMB DIVIDE 7980 30.8 15.8 195 -M 19.9 * TOGWOTEE PASS 9580 32.6 22.9 142 -M 26.6 * TWO OCEAN PLATEAU 9360 41.6 24.7 168 -M 29.4 * WILLOW CREEK 8450 39.1 28.4 138 38.3 30.5 126 ----- ----- Basin wide percent of average 150 130 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 30.8 21.8 141 -M 16.5 * BLACK BEAR 7950 -M 35.2 * -M 37.1 * CANYON 7940 22.8 11.9 192 25.0 13.1 191 FISHER CREEK 9100 52.3 33.1 158 -M 33.6 * MADISON PLATEAU 7750 39.6 22.7 174 40.5 24.0 169 NORTHEAST ENTRANCE 7350 12.2 8.8 139 18.3 11.0 166 PARKER PEAK 9400 30.0 20.0 150 -M 14.3 * SYLVAN LAKE 8420 29.7 20.4 146 -M 17.7 * THUMB DIVIDE 7980 30.8 15.8 195 -M 19.9 * TWO OCEAN PLATEAU 9360 41.6 24.7 168 -M 29.4 * WHISKEY CREEK 6800 24.2 16.0 151 30.2 19.9 152 WHITE MILL 8700 35.6 23.5 151 -M 26.0 * WOLVERINE 7650 14.6 11.0 133 14.7 11.8 125 ----- ----- Basin wide percent of average 159 161* WIND RIVER BURROUGHS CREEK 8750 22.7 14.2 160 -M 15.2 * CHRISTINA LAKE 9980 18.7 14.0 134 21.1 14.9 142 COLD SPRINGS 9630 9.9 7.7 129 11.1 9.4 118 HOBBS PARK 10100 16.0 13.5 119 12.6 12.6 100 LITTLE WARM 9620 15.8 10.4 152 17.5 11.9 147 SOUTH PASS 9040 24.9 15.2 164 23.4 15.3 153 ST. LAWRENCE ALT 8620 8.6 7.0 123 9.9 9.0 110 TOGWOTEE PASS 9580 32.6 22.9 142 -M 26.6 * TOWNSEND CREEK 8700 9.5 9.0 106 10.9 11.0 99 ----- ----- Basin wide percent of average 139 127 BIGHORN BASIN BALD MTN. 9375 20.6 18.8 110 17.1 15.6 110 BEAR TRAP MEADOW 7900 7.2 6.5 111 7.5 7.2 104 BLACKWATER 9780 35.3 20.2 175 26.6 16.5 161 BONE SPRINGS DIV 9350 16.8 14.9 113 15.2 13.2 115 EVENING STAR 9200 39.1 24.8 158 -M 20.7 * GRAVE SPRINGS 8550 10.5 -M * 9.9 8.4 118 KIRWIN 9550 13.4 9.0 149 15.0 9.6 156 LOST CREEK 8080 14.1 12.0 118 13.9 10.4 134 MARQUETTE 8760 10.0 7.3 137 10.3 8.2 126 MIDDLE POWDER 7760 14.6 10.9 134 12.9 10.4 124 OWL CREEK 8975 7.5 4.1 183 6.0 5.5 109 POWDER RIVER PASS 9480 13.3 9.9 134 12.6 10.3 122 SHELL CREEK 9580 16.4 13.8 119 13.8 11.7 118 SYLVAN LAKE 8420 29.7 20.4 146 -M 17.7 * SYLVAN ROAD 8120 20.0 12.3 163 25.8 14.8 174 TIMBER CREEK 7950 6.9 5.6 123 7.5 6.0 125 YOUNTS PEAK 8350 22.3 16.0 139 -M 15.2 * ----- ----- Basin wide percent of average 139 131 SHOSHONE RIVER BLACKWATER 9780 35.3 20.2 175 26.6 16.5 161 EVENING STAR 9200 39.1 24.8 158 -M 20.7 * KIRWIN 9550 13.4 9.0 149 15.0 9.6 156 MARQUETTE 8760 10.0 7.3 137 10.3 8.2 126 SYLVAN LAKE 8420 29.7 20.4 146 -M 17.7 * SYLVAN ROAD 8120 20.0 12.3 163 25.8 14.8 174 YOUNTS PEAK 8350 22.3 16.0 139 -M 15.2 * ----- ----- Basin wide percent of average 154 158 POWDER-TONGUE BEAR TRAP MEADOW 7900 7.2 6.5 111 7.5 7.2 104 BONE SPRINGS DIV 9350 16.8 14.9 113 15.2 13.2 115 BURGESS JUNCTION 7880 11.4 10.7 107 11.5 9.9 116 CLOUD PEAK RESERVOIR 9860 16.3 13.0 125 13.6 11.7 116 DOME LAKE 8880 11.6 12.5 93 13.1 11.7 112 GRAVE SPRINGS 8550 10.5 -M * 9.9 8.4 118 HANSEN SAWMILL 8760 7.3 6.5 112 7.9 6.9 114 LOST CREEK 8080 14.1 12.0 118 13.9 10.4 134 MIDDLE POWDER 7760 14.6 10.9 134 12.9 10.4 124 POWDER RIVER PASS 9480 13.3 9.9 134 12.6 10.3 122 SUCKER CREEK 8880 13.1 10.9 120 12.7 11.7 109 TIE CREEK 6870 7.7 -M * 10.3 9.5 108 ----- ----- Basin wide percent of average 117 116 BELLE FOURCHE BLIND PARK 6890 10.0 10.1 99 13.8 8.7 159 NORTH RAPID CREEK 6130 -M -M * -M -M * WARREN PEAK 6520 16.5 10.1 163 -M 7.0 * ----- ----- Basin wide percent of average 131 159* UPPER N. PLATTE RIVER COLUMBINE 9400 29.2 23.4 125 28.9 22.3 130 DIVIDE PEAK 8800 24.4 18.7 130 22.8 20.6 111 ELK RIVER 8700 26.8 18.4 146 24.1 17.2 140 JOE WRIGHT 10120 21.8 19.6 111 27.0 22.4 121 NORTH FRENCH CREEK 10100 33.6 22.9 147 30.0 21.0 143 OLD BATTLE 10000 33.9 28.7 118 33.1 27.1 122 SOUTH BRUSH CREEK 8400 14.3 11.2 128 16.3 14.4 113 TOWER 10500 52.0 41.2 126 36.7 32.8 112 WEBBER SPRINGS 9200 29.8 24.9 120 33.7 22.7 148 WILLOW CREEK PASS 9540 16.8 10.5 160 13.9 11.1 125 ----- ----- Basin wide percent of average 129 126 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 32.3 22.6 143 24.3 17.3 140 CASPER MTN. 7900 19.2 13.9 138 17.8 12.2 146 CHRISTINA LAKE 9980 18.7 14.0 134 21.1 14.9 142 DEADMAN HILL 10220 14.9 15.0 99 16.9 14.7 115 LAPRELE CREEK 8320 13.7 9.4 146 13.4 10.3 130 RENO HILL 8400 20.0 12.3 163 17.1 16.7 102 ROACH 9700 20.8 15.6 133 20.6 19.0 108 SAND LAKE 10080 34.3 29.8 115 26.8 18.2 147 SOUTH PASS 9040 24.9 15.2 164 23.4 15.3 153 WINDY PEAK 7840 9.7 7.6 128 10.5 8.2 128 ----- ----- Basin wide percent of average 134 131 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 17.2 10.8 159 17.7 13.8 128 DIVIDE PEAK 8800 24.4 18.7 130 22.8 20.6 111 OLD BATTLE 10000 33.9 28.7 118 33.1 27.1 122 SANDSTONE RS 8150 20.1 13.6 148 21.3 16.8 127 WHISKEY PARK 8950 37.0 26.3 141 31.2 25.1 124 ----- ----- Basin wide percent of average 135 122 UPPER GREEN RIVER BIG SANDY OPENING 9100 18.2 13.4 136 16.1 15.4 105 BLIND BULL SUM 8650 39.7 27.1 146 31.3 22.6 138 EAST RIM DIVIDE 7930 16.4 13.2 124 16.6 14.5 114 ELKHART PARK G.S. 9400 17.3 12.8 135 17.3 15.2 114 GROS VENTRE SUMMIT 8775 20.8 14.4 144 19.4 15.1 128 KENDALL R.S. 7740 23.8 14.4 165 18.4 14.8 124 LOOMIS PARK 8240 -M 16.5 * 20.5 17.9 115 NEW FORK LAKE 8340 14.2 10.7 133 12.7 13.8 92 SNIDER BASIN 8250 22.5 14.0 161 18.5 14.5 128 SPRING CREEK DIVIDE 9000 33.2 25.8 129 -M 25.9 * TRIPLE PEAK 8500 34.4 23.8 145 35.0 29.6 118 ----- ----- Basin wide percent of average 142 119 LOWER GREEN RIVER HAMS FORK 7840 17.1 11.9 144 14.4 12.7 113 HEWINTA 9500 12.9 10.0 129 13.6 11.5 118 HICKERSON PARK 9150 7.6 5.8 131 8.9 8.2 109 HOLE-IN-ROCK 9150 8.3 5.5 151 9.3 8.2 113 INDIAN CREEK 9425 37.6 26.1 144 30.3 24.4 124 KELLEY R.S. 8180 23.0 15.9 145 24.8 17.9 139 STEEL CREEK PARK 10100 15.3 14.3 107 15.0 11.4 132 ----- ----- Basin wide percent of average 136 123 UPPER BEAR RIVER BUG LAKE 7950 32.0 18.9 169 28.6 17.6 162 HAYDEN FORK 9400 19.5 15.4 127 24.6 17.0 145 KELLEY R.S. 8180 23.0 15.9 145 24.8 17.9 139 LILY LAKE 9050 17.5 11.8 148 18.7 13.1 143 MONTE CRISTO 8960 39.4 26.4 149 31.9 23.0 139 SALT RIVER SUMMIT 7600 21.3 13.3 160 22.4 16.1 139 TRIAL LAKE 9960 35.7 23.7 151 34.1 21.6 158 ----- ----- Basin wide percent of average 150 147 ----------------------------------------------------------------------------- -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.