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 TUESDAY: MARCH 4 , 1997 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 27.5 15.9 173 27.6 20.4 135 COTTONWOOD CREEK 7600 27.6 19.2 144 28.1 22.6 124 GRANITE CREEK 6770 27.6 15.8 175 22.3 21.4 104 GRASSY LAKE 7265 42.1 30.3 139 38.6 33.0 117 GROS VENTRE SUMMIT 8775 20.0 13.2 152 18.7 14.4 130 LEWIS LAKE DIVIDE 7860 49.9 30.2 165 -M 33.6 * PHILLIPS BENCH 8200 37.8 24.8 152 41.9 26.5 158 SALT RIVER SUMMIT 7600 20.6 12.4 166 22.1 15.3 144 SNAKE RIVER STATION 6920 26.6 16.5 161 33.6 23.2 145 SPRING CREEK DIVIDE 9000 32.8 23.8 138 -M 24.5 * THUMB DIVIDE 7980 29.7 14.6 203 -M 19.0 * TOGWOTEE PASS 9580 31.5 21.3 148 -M 25.1 * TWO OCEAN PLATEAU 9360 40.2 22.7 177 -M 28.1 * WILLOW CREEK 8450 33.8 26.4 128 37.0 29.0 128 ----- ----- Basin wide percent of average 156 131 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 32.0 20.3 158 -M 15.4 * BLACK BEAR 7950 -M 32.5 * -M 34.4 * CANYON 7940 22.2 11.0 202 23.6 12.3 192 FISHER CREEK 9100 50.7 30.9 164 -M 31.3 * MADISON PLATEAU 7750 38.5 21.1 182 34.8 22.3 156 NORTHEAST ENTRANCE 7350 11.4 8.2 139 17.8 10.4 171 PARKER PEAK 9400 28.8 18.4 157 -M 13.4 * SYLVAN LAKE 8420 28.8 18.9 152 -M 16.6 * THUMB DIVIDE 7980 29.7 14.6 203 -M 19.0 * TWO OCEAN PLATEAU 9360 40.2 22.7 177 -M 28.1 * WHISKEY CREEK 6800 23.8 14.8 161 -M 18.4 * WHITE MILL 8700 34.6 21.7 159 -M 24.3 * WOLVERINE 7650 14.9 10.3 145 14.3 11.2 128 ----- ----- Basin wide percent of average 167 161* WIND RIVER BURROUGHS CREEK 8750 22.2 13.3 167 -M 14.3 * CHRISTINA LAKE 9980 18.7 13.0 144 19.5 13.6 143 COLD SPRINGS 9630 9.6 7.2 133 10.6 8.6 123 HOBBS PARK 10100 15.5 12.4 125 12.0 11.5 104 LITTLE WARM 9620 15.1 9.5 159 16.8 11.0 153 SOUTH PASS 9040 24.5 14.3 171 23.0 14.1 163 ST. LAWRENCE ALT 8620 8.3 6.4 130 9.7 8.2 118 TOGWOTEE PASS 9580 31.5 21.3 148 -M 25.1 * TOWNSEND CREEK 8700 9.2 8.2 112 10.4 10.1 103 ----- ----- Basin wide percent of average 146 132 BIGHORN BASIN BALD MTN. 9375 19.6 17.4 113 16.3 14.4 113 BEAR TRAP MEADOW 7900 7.2 6.0 120 7.3 6.5 112 BLACKWATER 9780 33.7 18.5 182 25.5 15.5 165 BONE SPRINGS DIV 9350 16.2 13.7 118 14.6 12.0 122 EVENING STAR 9200 37.4 23.0 163 -M 19.4 * GRAVE SPRINGS 8550 10.3 -M * 9.8 7.6 129 KIRWIN 9550 13.3 8.3 160 14.7 8.8 167 LOST CREEK 8080 13.7 11.0 125 13.6 9.5 143 MARQUETTE 8760 9.7 6.7 145 9.9 7.3 136 MIDDLE POWDER 7760 13.7 10.0 137 12.5 9.5 132 OWL CREEK 8975 7.2 3.8 189 5.9 5.0 118 POWDER RIVER PASS 9480 12.6 9.0 140 11.9 9.6 124 SHELL CREEK 9580 15.7 12.9 122 12.9 10.8 119 SYLVAN LAKE 8420 28.8 18.9 152 -M 16.6 * SYLVAN ROAD 8120 19.2 11.4 168 25.2 13.9 181 TIMBER CREEK 7950 6.4 5.1 125 7.1 5.3 134 YOUNTS PEAK 8350 21.2 15.1 140 -M 14.2 * ----- ----- Basin wide percent of average 144 138 SHOSHONE RIVER BLACKWATER 9780 33.7 18.5 182 25.5 15.5 165 EVENING STAR 9200 37.4 23.0 163 -M 19.4 * KIRWIN 9550 13.3 8.3 160 14.7 8.8 167 MARQUETTE 8760 9.7 6.7 145 9.9 7.3 136 SYLVAN LAKE 8420 28.8 18.9 152 -M 16.6 * SYLVAN ROAD 8120 19.2 11.4 168 25.2 13.9 181 YOUNTS PEAK 8350 21.2 15.1 140 -M 14.2 * ----- ----- Basin wide percent of average 160 165 POWDER-TONGUE BEAR TRAP MEADOW 7900 7.2 6.0 120 7.3 6.5 112 BONE SPRINGS DIV 9350 16.2 13.7 118 14.6 12.0 122 BURGESS JUNCTION 7880 10.9 9.9 110 11.0 8.9 124 CLOUD PEAK RESERVOIR 9860 15.5 11.5 135 12.9 10.6 122 DOME LAKE 8880 10.5 11.6 91 12.2 10.7 114 GRAVE SPRINGS 8550 10.3 -M * 9.8 7.6 129 HANSEN SAWMILL 8760 6.6 5.9 112 7.0 6.2 113 LOST CREEK 8080 13.7 11.0 125 13.6 9.5 143 MIDDLE POWDER 7760 13.7 10.0 137 12.5 9.5 132 POWDER RIVER PASS 9480 12.6 9.0 140 11.9 9.6 124 SUCKER CREEK 8880 12.5 10.0 125 12.2 10.8 113 TIE CREEK 6870 7.5 -M * 10.1 8.5 119 ----- ----- Basin wide percent of average 121 122 BELLE FOURCHE BLIND PARK 6890 9.8 9.3 105 13.9 7.8 178 NORTH RAPID CREEK 6130 9.9 -M * 12.0 -M * WARREN PEAK 6520 16.3 9.3 175 -M 6.4 * ----- ----- Basin wide percent of average 140 178* UPPER N. PLATTE RIVER COLUMBINE 9400 28.1 21.5 131 26.9 20.9 129 DIVIDE PEAK 8800 22.9 17.2 133 22.1 19.1 116 ELK RIVER 8700 26.5 17.1 155 22.9 15.9 144 JOE WRIGHT 10120 21.1 17.9 118 25.9 20.7 125 NORTH FRENCH CREEK 10100 31.5 20.9 151 25.8 19.3 134 OLD BATTLE 10000 33.9 26.7 127 32.3 25.1 129 SOUTH BRUSH CREEK 8400 13.5 9.8 138 15.7 13.2 119 TOWER 10500 51.1 38.1 134 36.3 30.6 119 WEBBER SPRINGS 9200 29.2 22.9 128 32.8 21.1 155 WILLOW CREEK PASS 9540 16.4 9.5 173 13.2 10.2 129 ----- ----- Basin wide percent of average 136 129 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 30.6 20.5 149 23.8 15.9 150 CASPER MTN. 7900 18.7 12.6 148 17.3 11.1 156 CHRISTINA LAKE 9980 18.7 13.0 144 19.5 13.6 143 DEADMAN HILL 10220 14.4 13.8 104 16.1 13.4 120 LAPRELE CREEK 8320 13.6 8.6 158 13.0 9.4 138 RENO HILL 8400 19.5 11.1 176 16.7 15.0 111 ROACH 9700 19.7 14.3 138 20.1 17.7 114 SAND LAKE 10080 32.6 27.4 119 25.5 16.9 151 SOUTH PASS 9040 24.5 14.3 171 23.0 14.1 163 WINDY PEAK 7840 9.4 6.5 145 10.4 7.3 142 ----- ----- Basin wide percent of average 142 138 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 16.4 10.1 162 16.9 12.9 131 DIVIDE PEAK 8800 22.9 17.2 133 22.1 19.1 116 OLD BATTLE 10000 33.9 26.7 127 32.3 25.1 129 SANDSTONE RS 8150 19.4 12.5 155 20.8 15.7 132 WHISKEY PARK 8950 35.3 24.2 146 30.2 23.1 131 ----- ----- Basin wide percent of average 141 128 UPPER GREEN RIVER BIG SANDY OPENING 9100 17.7 12.4 143 16.4 14.7 112 BLIND BULL SUM 8650 38.2 24.9 153 -M 21.3 * EAST RIM DIVIDE 7930 15.7 12.3 128 16.0 13.8 116 ELKHART PARK G.S. 9400 16.9 11.7 144 16.6 14.5 114 GROS VENTRE SUMMIT 8775 20.0 13.2 152 18.7 14.4 130 KENDALL R.S. 7740 22.4 12.9 174 17.3 14.1 123 LOOMIS PARK 8240 -M 15.2 * 19.7 17.0 116 NEW FORK LAKE 8340 13.5 10.1 134 12.3 13.1 94 SNIDER BASIN 8250 21.5 13.1 164 18.2 13.8 132 SPRING CREEK DIVIDE 9000 32.8 23.8 138 -M 24.5 * TRIPLE PEAK 8500 32.4 22.2 146 33.2 28.3 117 ----- ----- Basin wide percent of average 148 117 LOWER GREEN RIVER HAMS FORK 7840 16.1 10.8 149 14.0 12.1 116 HEWINTA 9500 12.7 8.8 144 13.4 10.5 128 HICKERSON PARK 9150 7.4 5.2 142 8.6 7.4 116 HOLE-IN-ROCK 9150 7.7 4.7 164 9.2 7.4 124 INDIAN CREEK 9425 36.6 23.6 155 29.6 22.9 129 KELLEY R.S. 8180 22.4 14.6 153 24.3 17.0 143 STEEL CREEK PARK 10100 15.0 13.0 115 14.6 10.5 139 ----- ----- Basin wide percent of average 146 129 UPPER BEAR RIVER BUG LAKE 7950 30.9 17.4 178 27.7 16.3 170 HAYDEN FORK 9400 19.6 14.1 139 24.1 15.6 154 KELLEY R.S. 8180 22.4 14.6 153 24.3 17.0 143 LILY LAKE 9050 16.7 10.9 153 18.5 12.0 154 MONTE CRISTO 8960 38.9 24.1 161 31.2 21.3 146 SALT RIVER SUMMIT 7600 20.6 12.4 166 22.1 15.3 144 TRIAL LAKE 9960 34.6 21.7 159 33.1 20.1 165 ----- ----- Basin wide percent of average 159 154 ----------------------------------------------------------------------------- -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.