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 THURSDAY: MARCH 13 , 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 16.6 173 32.7 21.1 155 COTTONWOOD CREEK 7600 29.1 21.2 137 30.4 23.6 129 GRANITE CREEK 6770 28.2 16.9 167 23.2 22.2 105 GRASSY LAKE 7265 43.5 32.5 134 39.0 34.7 112 GROS VENTRE SUMMIT 8775 20.6 14.2 145 19.3 15.0 129 LEWIS LAKE DIVIDE 7860 50.4 32.3 156 -M 35.2 * PHILLIPS BENCH 8200 39.1 26.6 147 42.8 27.8 154 SALT RIVER SUMMIT 7600 21.0 13.1 160 22.6 16.0 141 SNAKE RIVER STATION 6920 27.2 17.5 155 34.2 24.3 141 SPRING CREEK DIVIDE 9000 33.0 25.4 130 -M 25.6 * THUMB DIVIDE 7980 30.6 15.6 196 -M 19.8 * TOGWOTEE PASS 9580 32.3 22.6 143 -M 26.4 * TWO OCEAN PLATEAU 9360 41.5 24.3 171 -M 29.1 * WILLOW CREEK 8450 37.2 28.0 133 38.2 30.3 126 ----- ----- Basin wide percent of average 151 131 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 32.5 21.5 151 -M 16.3 * BLACK BEAR 7950 -M 34.7 * -M 36.6 * CANYON 7940 22.7 11.7 194 25.0 13.0 192 FISHER CREEK 9100 52.3 32.7 160 -M 33.2 * MADISON PLATEAU 7750 39.5 22.4 176 40.5 23.7 171 NORTHEAST ENTRANCE 7350 12.0 8.7 138 18.1 10.9 166 PARKER PEAK 9400 29.8 19.7 151 -M 14.1 * SYLVAN LAKE 8420 29.7 20.1 148 -M 17.5 * THUMB DIVIDE 7980 30.6 15.6 196 -M 19.8 * TWO OCEAN PLATEAU 9360 41.5 24.3 171 -M 29.1 * WHISKEY CREEK 6800 24.1 15.8 153 29.9 19.6 153 WHITE MILL 8700 35.9 23.2 155 -M 25.7 * WOLVERINE 7650 15.0 10.9 138 14.6 11.7 125 ----- ----- Basin wide percent of average 161 162* WIND RIVER BURROUGHS CREEK 8750 22.7 14.0 162 -M 15.0 * CHRISTINA LAKE 9980 18.7 13.8 136 21.0 14.7 143 COLD SPRINGS 9630 10.0 7.6 132 11.0 9.3 118 HOBBS PARK 10100 16.0 13.3 120 12.6 12.4 102 LITTLE WARM 9620 15.8 10.2 155 17.3 11.8 147 SOUTH PASS 9040 24.9 15.0 166 23.3 15.1 154 ST. LAWRENCE ALT 8620 8.6 6.9 125 9.9 8.9 111 TOGWOTEE PASS 9580 32.3 22.6 143 -M 26.4 * TOWNSEND CREEK 8700 9.6 8.9 108 10.8 10.8 100 ----- ----- Basin wide percent of average 141 128 BIGHORN BASIN BALD MTN. 9375 20.5 18.5 111 17.1 15.4 111 BEAR TRAP MEADOW 7900 7.5 6.4 117 7.7 7.0 110 BLACKWATER 9780 35.4 19.9 178 26.8 16.3 164 BONE SPRINGS DIV 9350 17.2 14.7 117 15.2 13.0 117 EVENING STAR 9200 39.0 24.5 159 -M 20.4 * GRAVE SPRINGS 8550 10.5 -M * 9.9 8.3 119 KIRWIN 9550 13.6 8.9 153 14.9 9.5 157 LOST CREEK 8080 14.1 11.8 119 13.9 10.3 135 MARQUETTE 8760 10.0 7.2 139 10.5 8.0 131 MIDDLE POWDER 7760 14.2 10.7 133 12.9 10.2 126 OWL CREEK 8975 7.5 4.0 188 6.1 5.4 113 POWDER RIVER PASS 9480 12.4 9.7 128 12.4 10.2 122 SHELL CREEK 9580 16.5 13.6 121 13.5 11.6 116 SYLVAN LAKE 8420 29.7 20.1 148 -M 17.5 * SYLVAN ROAD 8120 19.8 12.1 164 25.4 14.6 174 TIMBER CREEK 7950 6.9 5.5 125 7.4 5.8 128 YOUNTS PEAK 8350 22.3 15.8 141 -M 15.0 * ----- ----- Basin wide percent of average 141 133 SHOSHONE RIVER BLACKWATER 9780 35.4 19.9 178 26.8 16.3 164 EVENING STAR 9200 39.0 24.5 159 -M 20.4 * KIRWIN 9550 13.6 8.9 153 14.9 9.5 157 MARQUETTE 8760 10.0 7.2 139 10.5 8.0 131 SYLVAN LAKE 8420 29.7 20.1 148 -M 17.5 * SYLVAN ROAD 8120 19.8 12.1 164 25.4 14.6 174 YOUNTS PEAK 8350 22.3 15.8 141 -M 15.0 * ----- ----- Basin wide percent of average 156 160 POWDER-TONGUE BEAR TRAP MEADOW 7900 7.5 6.4 117 7.7 7.0 110 BONE SPRINGS DIV 9350 17.2 14.7 117 15.2 13.0 117 BURGESS JUNCTION 7880 11.6 10.6 109 11.5 9.7 119 CLOUD PEAK RESERVOIR 9860 16.3 12.7 128 13.4 11.5 117 DOME LAKE 8880 11.4 12.3 93 12.7 11.5 110 GRAVE SPRINGS 8550 10.5 -M * 9.9 8.3 119 HANSEN SAWMILL 8760 7.1 6.4 111 7.5 6.7 112 LOST CREEK 8080 14.1 11.8 119 13.9 10.3 135 MIDDLE POWDER 7760 14.2 10.7 133 12.9 10.2 126 POWDER RIVER PASS 9480 12.4 9.7 128 12.4 10.2 122 SUCKER CREEK 8880 13.1 10.7 122 13.1 11.5 114 TIE CREEK 6870 7.8 -M * 10.5 9.3 113 ----- ----- Basin wide percent of average 118 118 BELLE FOURCHE BLIND PARK 6890 9.8 10.0 98 13.9 8.5 164 NORTH RAPID CREEK 6130 -M -M * -M -M * WARREN PEAK 6520 16.6 10.0 166 -M 6.9 * ----- ----- Basin wide percent of average 132 164* UPPER N. PLATTE RIVER COLUMBINE 9400 28.9 23.1 125 29.0 22.0 132 DIVIDE PEAK 8800 23.4 18.4 127 23.0 20.3 113 ELK RIVER 8700 27.7 18.2 152 24.0 16.9 142 JOE WRIGHT 10120 21.4 19.3 111 26.5 22.1 120 NORTH FRENCH CREEK 10100 33.5 22.5 149 29.6 20.7 143 OLD BATTLE 10000 33.9 28.3 120 33.2 26.7 124 SOUTH BRUSH CREEK 8400 13.9 10.9 128 16.1 14.2 113 TOWER 10500 51.6 40.6 127 36.6 32.4 113 WEBBER SPRINGS 9200 29.5 24.5 120 33.6 22.4 150 WILLOW CREEK PASS 9540 16.6 10.3 161 13.9 10.9 128 ----- ----- Basin wide percent of average 130 127 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 31.6 22.2 142 24.3 17.0 143 CASPER MTN. 7900 19.1 13.7 139 17.9 12.0 149 CHRISTINA LAKE 9980 18.7 13.8 136 21.0 14.7 143 DEADMAN HILL 10220 14.6 14.8 99 16.6 14.4 115 LAPRELE CREEK 8320 14.2 9.3 153 13.5 10.1 134 RENO HILL 8400 19.9 12.1 164 17.2 16.4 105 ROACH 9700 20.5 15.4 133 20.4 18.8 109 SAND LAKE 10080 33.4 29.4 114 26.3 18.0 146 SOUTH PASS 9040 24.9 15.0 166 23.3 15.1 154 WINDY PEAK 7840 9.7 7.4 131 11.1 8.0 139 ----- ----- Basin wide percent of average 135 133 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 17.2 10.7 161 17.7 13.6 130 DIVIDE PEAK 8800 23.4 18.4 127 23.0 20.3 113 OLD BATTLE 10000 33.9 28.3 120 33.2 26.7 124 SANDSTONE RS 8150 19.4 13.4 145 21.3 16.6 128 WHISKEY PARK 8950 37.2 25.9 144 31.2 24.7 126 ----- ----- Basin wide percent of average 136 124 UPPER GREEN RIVER BIG SANDY OPENING 9100 18.4 13.2 139 17.3 15.3 113 BLIND BULL SUM 8650 39.6 26.7 148 31.3 22.4 140 EAST RIM DIVIDE 7930 16.3 13.0 125 16.5 14.3 115 ELKHART PARK G.S. 9400 17.4 12.6 138 17.5 15.1 116 GROS VENTRE SUMMIT 8775 20.6 14.2 145 19.3 15.0 129 KENDALL R.S. 7740 23.6 14.1 167 18.5 14.7 126 LOOMIS PARK 8240 -M 16.3 * 20.6 17.8 116 NEW FORK LAKE 8340 14.1 10.6 133 12.9 13.6 95 SNIDER BASIN 8250 22.1 13.8 160 18.6 14.3 130 SPRING CREEK DIVIDE 9000 33.0 25.4 130 -M 25.6 * TRIPLE PEAK 8500 34.0 23.5 145 35.1 29.4 119 ----- ----- Basin wide percent of average 143 121 LOWER GREEN RIVER HAMS FORK 7840 17.2 11.7 147 14.3 12.6 113 HEWINTA 9500 13.0 9.8 133 13.6 11.3 120 HICKERSON PARK 9150 7.1 5.7 125 8.7 8.1 107 HOLE-IN-ROCK 9150 8.1 5.4 150 9.3 8.1 115 INDIAN CREEK 9425 37.5 25.6 146 30.2 24.1 125 KELLEY R.S. 8180 23.1 15.7 147 24.8 17.7 140 STEEL CREEK PARK 10100 15.3 14.1 109 15.0 11.3 133 ----- ----- Basin wide percent of average 138 124 UPPER BEAR RIVER BUG LAKE 7950 31.9 18.6 172 28.6 17.3 165 HAYDEN FORK 9400 19.9 15.2 131 24.6 16.7 147 KELLEY R.S. 8180 23.1 15.7 147 24.8 17.7 140 LILY LAKE 9050 17.7 11.6 153 18.6 12.9 144 MONTE CRISTO 8960 37.3 26.0 143 31.9 22.7 141 SALT RIVER SUMMIT 7600 21.0 13.1 160 22.6 16.0 141 TRIAL LAKE 9960 35.8 23.3 154 34.0 21.4 159 ----- ----- Basin wide percent of average 151 148 ----------------------------------------------------------------------------- -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.