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 1 , 1997 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 26.3 15.7 168 27.6 20.1 137 COTTONWOOD CREEK 7600 26.6 18.5 144 27.9 22.3 125 GRANITE CREEK 6770 26.7 15.4 173 22.3 21.1 106 GRASSY LAKE 7265 40.2 29.6 136 38.4 32.5 118 GROS VENTRE SUMMIT 8775 19.1 12.9 148 18.0 14.2 127 LEWIS LAKE DIVIDE 7860 47.4 29.5 161 -M 33.0 * PHILLIPS BENCH 8200 36.1 24.2 149 40.1 26.1 154 SALT RIVER SUMMIT 7600 19.7 12.1 163 21.4 15.1 142 SNAKE RIVER STATION 6920 25.4 16.2 157 32.7 22.8 143 SPRING CREEK DIVIDE 9000 32.1 23.3 138 -M 24.1 * THUMB DIVIDE 7980 28.5 14.3 199 -M 18.8 * TOGWOTEE PASS 9580 30.5 20.8 147 -M 24.7 * TWO OCEAN PLATEAU 9360 39.1 22.2 176 -M 27.7 * WILLOW CREEK 8450 33.3 25.8 129 36.9 28.6 129 ----- ----- Basin wide percent of average 154 131 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 31.2 19.9 157 -M 15.1 * BLACK BEAR 7950 -M 31.7 * -M 33.7 * CANYON 7940 21.4 10.7 200 23.3 12.1 193 FISHER CREEK 9100 49.2 30.3 162 -M 30.7 * MADISON PLATEAU 7750 36.4 20.6 177 34.6 21.8 159 NORTHEAST ENTRANCE 7350 11.3 8.1 140 17.4 10.2 171 PARKER PEAK 9400 28.0 18.0 156 -M 13.1 * SYLVAN LAKE 8420 27.7 18.5 150 -M 16.3 * THUMB DIVIDE 7980 28.5 14.3 199 -M 18.8 * TWO OCEAN PLATEAU 9360 39.1 22.2 176 -M 27.7 * WHISKEY CREEK 6800 22.3 14.5 154 -M 18.0 * WHITE MILL 8700 33.6 21.2 158 -M 23.8 * WOLVERINE 7650 14.4 10.1 143 14.1 11.0 128 ----- ----- Basin wide percent of average 165 162* WIND RIVER BURROUGHS CREEK 8750 21.5 13.1 164 -M 14.0 * CHRISTINA LAKE 9980 18.1 12.7 143 19.5 13.3 147 COLD SPRINGS 9630 8.8 7.0 126 10.1 8.4 120 HOBBS PARK 10100 14.8 12.1 122 11.8 11.2 105 LITTLE WARM 9620 14.4 9.2 157 16.2 10.8 150 SOUTH PASS 9040 23.7 14.0 169 22.3 13.8 162 ST. LAWRENCE ALT 8620 8.1 6.2 131 9.5 8.0 119 TOGWOTEE PASS 9580 30.5 20.8 147 -M 24.7 * TOWNSEND CREEK 8700 9.0 8.0 112 10.3 9.8 105 ----- ----- Basin wide percent of average 144 132 BIGHORN BASIN BALD MTN. 9375 19.3 17.0 114 16.2 14.1 115 BEAR TRAP MEADOW 7900 6.7 5.9 114 6.7 6.3 106 BLACKWATER 9780 32.6 18.0 181 24.6 15.2 162 BONE SPRINGS DIV 9350 15.7 13.4 117 14.3 11.7 122 EVENING STAR 9200 36.4 22.5 162 -M 19.0 * GRAVE SPRINGS 8550 9.9 -M * 9.5 7.4 128 KIRWIN 9550 13.0 8.1 160 14.6 8.6 170 LOST CREEK 8080 13.0 10.7 121 13.0 9.3 140 MARQUETTE 8760 9.4 6.5 145 9.7 7.1 137 MIDDLE POWDER 7760 12.6 9.7 130 11.6 9.2 126 OWL CREEK 8975 6.8 3.7 184 5.5 4.9 112 POWDER RIVER PASS 9480 12.3 8.8 140 11.7 9.4 124 SHELL CREEK 9580 15.3 12.6 121 12.7 10.6 120 SYLVAN LAKE 8420 27.7 18.5 150 -M 16.3 * SYLVAN ROAD 8120 18.6 11.2 166 24.7 13.6 182 TIMBER CREEK 7950 6.2 4.9 127 6.9 5.1 135 YOUNTS PEAK 8350 20.6 14.8 139 -M 13.9 * ----- ----- Basin wide percent of average 143 137 SHOSHONE RIVER BLACKWATER 9780 32.6 18.0 181 24.6 15.2 162 EVENING STAR 9200 36.4 22.5 162 -M 19.0 * KIRWIN 9550 13.0 8.1 160 14.6 8.6 170 MARQUETTE 8760 9.4 6.5 145 9.7 7.1 137 SYLVAN LAKE 8420 27.7 18.5 150 -M 16.3 * SYLVAN ROAD 8120 18.6 11.2 166 24.7 13.6 182 YOUNTS PEAK 8350 20.6 14.8 139 -M 13.9 * ----- ----- Basin wide percent of average 159 165 POWDER-TONGUE BEAR TRAP MEADOW 7900 6.7 5.9 114 6.7 6.3 106 BONE SPRINGS DIV 9350 15.7 13.4 117 14.3 11.7 122 BURGESS JUNCTION 7880 10.4 9.7 107 10.4 8.6 121 CLOUD PEAK RESERVOIR 9860 15.2 11.1 137 12.7 10.3 123 DOME LAKE 8880 10.0 11.3 88 11.9 10.4 114 GRAVE SPRINGS 8550 9.9 -M * 9.5 7.4 128 HANSEN SAWMILL 8760 6.4 5.7 112 6.9 6.0 115 LOST CREEK 8080 13.0 10.7 121 13.0 9.3 140 MIDDLE POWDER 7760 12.6 9.7 130 11.6 9.2 126 POWDER RIVER PASS 9480 12.3 8.8 140 11.7 9.4 124 SUCKER CREEK 8880 12.0 9.7 124 11.8 10.5 112 TIE CREEK 6870 7.2 -M * 9.7 8.2 118 ----- ----- Basin wide percent of average 119 121 BELLE FOURCHE BLIND PARK 6890 9.6 9.1 105 13.6 7.6 179 NORTH RAPID CREEK 6130 9.7 -M * 11.9 -M * WARREN PEAK 6520 16.0 9.1 176 -M 6.2 * ----- ----- Basin wide percent of average 141 179* UPPER N. PLATTE RIVER COLUMBINE 9400 27.5 21.0 131 26.7 20.5 130 DIVIDE PEAK 8800 22.9 16.8 136 21.7 18.7 116 ELK RIVER 8700 26.2 16.7 157 22.7 15.5 146 JOE WRIGHT 10120 20.8 17.4 120 25.6 20.2 127 NORTH FRENCH CREEK 10100 31.4 20.4 154 25.7 18.9 136 OLD BATTLE 10000 33.9 26.2 129 32.3 24.5 132 SOUTH BRUSH CREEK 8400 13.4 9.4 143 15.7 12.9 122 TOWER 10500 50.2 37.3 135 36.3 30.0 121 WEBBER SPRINGS 9200 28.8 22.3 129 31.9 20.7 154 WILLOW CREEK PASS 9540 16.3 9.2 177 12.9 9.9 130 ----- ----- Basin wide percent of average 138 131 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 30.3 19.9 152 23.7 15.5 153 CASPER MTN. 7900 18.1 12.3 147 16.9 10.8 156 CHRISTINA LAKE 9980 18.1 12.7 143 19.5 13.3 147 DEADMAN HILL 10220 14.0 13.5 104 15.8 13.0 122 LAPRELE CREEK 8320 13.0 8.4 155 12.7 9.1 140 RENO HILL 8400 19.0 10.8 176 16.2 14.6 111 ROACH 9700 19.6 14.0 140 20.0 17.3 116 SAND LAKE 10080 32.2 26.8 120 25.2 16.5 153 SOUTH PASS 9040 23.7 14.0 169 22.3 13.8 162 WINDY PEAK 7840 9.3 6.2 150 10.3 7.1 145 ----- ----- Basin wide percent of average 142 139 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 15.7 9.9 159 16.7 12.6 133 DIVIDE PEAK 8800 22.9 16.8 136 21.7 18.7 116 OLD BATTLE 10000 33.9 26.2 129 32.3 24.5 132 SANDSTONE RS 8150 18.9 12.2 155 20.5 15.4 133 WHISKEY PARK 8950 34.7 23.6 147 29.9 22.5 133 ----- ----- Basin wide percent of average 142 129 UPPER GREEN RIVER BIG SANDY OPENING 9100 16.8 12.1 139 15.9 14.5 110 BLIND BULL SUM 8650 36.7 24.3 151 -M 21.0 * EAST RIM DIVIDE 7930 15.0 12.0 125 15.5 13.6 114 ELKHART PARK G.S. 9400 16.4 11.4 144 16.5 14.3 115 GROS VENTRE SUMMIT 8775 19.1 12.9 148 18.0 14.2 127 KENDALL R.S. 7740 21.4 12.5 171 17.2 13.9 124 LOOMIS PARK 8240 -M 14.9 * 19.6 16.8 117 NEW FORK LAKE 8340 12.9 9.9 130 12.0 12.9 93 SNIDER BASIN 8250 20.8 12.8 162 17.7 13.6 130 SPRING CREEK DIVIDE 9000 32.1 23.3 138 -M 24.1 * TRIPLE PEAK 8500 31.2 21.7 144 32.7 27.9 117 ----- ----- Basin wide percent of average 145 117 LOWER GREEN RIVER HAMS FORK 7840 15.4 10.5 147 13.7 11.9 115 HEWINTA 9500 12.4 8.5 146 13.0 10.2 127 HICKERSON PARK 9150 6.5 5.0 130 8.4 7.2 117 HOLE-IN-ROCK 9150 7.4 4.5 164 8.9 7.2 124 INDIAN CREEK 9425 35.3 22.9 154 28.8 22.5 128 KELLEY R.S. 8180 21.7 14.2 153 24.4 16.8 145 STEEL CREEK PARK 10100 14.5 12.6 115 14.1 10.3 137 ----- ----- Basin wide percent of average 145 129 UPPER BEAR RIVER BUG LAKE 7950 29.6 17.0 174 26.8 15.9 169 HAYDEN FORK 9400 19.0 13.7 139 23.6 15.2 155 KELLEY R.S. 8180 21.7 14.2 153 24.4 16.8 145 LILY LAKE 9050 16.2 10.6 153 18.0 11.7 154 MONTE CRISTO 8960 38.1 23.5 162 30.5 20.8 147 SALT RIVER SUMMIT 7600 19.7 12.1 163 21.4 15.1 142 TRIAL LAKE 9960 33.9 21.2 160 32.3 19.7 164 ----- ----- 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.