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 SUNDAY: FEBRUARY 23 , 1997 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 26.0 15.0 173 27.5 19.3 142 COTTONWOOD CREEK 7600 26.1 17.6 148 27.7 21.2 131 GRANITE CREEK 6770 26.4 14.8 178 22.3 20.3 110 GRASSY LAKE 7265 39.7 29.7 134 38.5 31.2 123 GROS VENTRE SUMMIT 8775 18.8 12.4 152 17.6 13.6 129 LEWIS LAKE DIVIDE 7860 47.1 28.2 167 -M 31.7 * PHILLIPS BENCH 8200 35.4 23.3 152 39.5 25.1 157 SALT RIVER SUMMIT 7600 19.6 11.5 170 21.1 14.5 146 SNAKE RIVER STATION 6920 25.1 15.5 162 32.2 21.9 147 SPRING CREEK DIVIDE 9000 31.8 22.2 143 -M 23.1 * THUMB DIVIDE 7980 28.0 13.7 204 -M 18.1 * TOGWOTEE PASS 9580 29.8 20.0 149 -M 23.7 * TWO OCEAN PLATEAU 9360 38.3 21.4 179 -M 26.6 * WILLOW CREEK 8450 33.6 24.9 135 36.4 27.4 133 ----- ----- Basin wide percent of average 158 135 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 30.6 19.1 160 -M 14.5 * BLACK BEAR 7950 -M 30.2 * -M 32.2 * CANYON 7940 20.9 10.2 205 23.2 11.6 200 FISHER CREEK 9100 48.4 29.0 167 -M 29.4 * MADISON PLATEAU 7750 35.4 19.7 180 34.6 20.8 166 NORTHEAST ENTRANCE 7350 11.0 7.8 141 17.3 9.8 177 PARKER PEAK 9400 27.3 17.2 159 -M 12.5 * SYLVAN LAKE 8420 27.3 17.8 153 -M 15.6 * THUMB DIVIDE 7980 28.0 13.7 204 -M 18.1 * TWO OCEAN PLATEAU 9360 38.3 21.4 179 -M 26.6 * WHISKEY CREEK 6800 21.9 13.8 159 -M 17.2 * WHITE MILL 8700 33.0 20.4 162 -M 22.8 * WOLVERINE 7650 13.4 9.7 138 13.5 10.5 129 ----- ----- Basin wide percent of average 168 168* WIND RIVER BURROUGHS CREEK 8750 20.9 12.6 166 -M 13.4 * CHRISTINA LAKE 9980 17.7 12.2 145 19.5 12.8 152 COLD SPRINGS 9630 8.7 6.7 130 9.8 8.1 121 HOBBS PARK 10100 14.6 11.6 126 11.4 10.8 106 LITTLE WARM 9620 14.5 8.8 165 16.0 10.4 154 SOUTH PASS 9040 23.0 13.4 172 21.7 13.2 164 ST. LAWRENCE ALT 8620 7.6 5.9 129 9.2 7.6 121 TOGWOTEE PASS 9580 29.8 20.0 149 -M 23.7 * TOWNSEND CREEK 8700 8.7 7.6 114 9.9 9.4 105 ----- ----- Basin wide percent of average 147 135 BIGHORN BASIN BALD MTN. 9375 18.6 16.4 113 15.4 13.6 113 BEAR TRAP MEADOW 7900 6.3 5.7 111 6.4 6.1 105 BLACKWATER 9780 31.9 17.1 187 24.2 14.6 166 BONE SPRINGS DIV 9350 15.0 12.8 117 13.8 11.2 123 EVENING STAR 9200 35.8 21.6 166 -M 18.2 * GRAVE SPRINGS 8550 9.5 -M * 9.2 7.2 128 KIRWIN 9550 12.7 7.8 163 14.3 8.2 174 LOST CREEK 8080 12.0 10.1 119 12.2 9.0 136 MARQUETTE 8760 8.7 6.2 140 8.9 6.8 131 MIDDLE POWDER 7760 12.2 9.3 131 11.1 8.9 125 OWL CREEK 8975 6.3 3.5 180 5.2 4.7 111 POWDER RIVER PASS 9480 11.9 8.4 142 11.3 9.1 124 SHELL CREEK 9580 14.8 12.1 122 12.3 10.2 121 SYLVAN LAKE 8420 27.3 17.8 153 -M 15.6 * SYLVAN ROAD 8120 18.3 10.6 173 24.3 13.1 185 TIMBER CREEK 7950 5.6 4.6 122 6.3 4.9 129 YOUNTS PEAK 8350 20.1 14.2 142 -M 13.3 * ----- ----- Basin wide percent of average 145 137 SHOSHONE RIVER BLACKWATER 9780 31.9 17.1 187 24.2 14.6 166 EVENING STAR 9200 35.8 21.6 166 -M 18.2 * KIRWIN 9550 12.7 7.8 163 14.3 8.2 174 MARQUETTE 8760 8.7 6.2 140 8.9 6.8 131 SYLVAN LAKE 8420 27.3 17.8 153 -M 15.6 * SYLVAN ROAD 8120 18.3 10.6 173 24.3 13.1 185 YOUNTS PEAK 8350 20.1 14.2 142 -M 13.3 * ----- ----- Basin wide percent of average 162 168 POWDER-TONGUE BEAR TRAP MEADOW 7900 6.3 5.7 111 6.4 6.1 105 BONE SPRINGS DIV 9350 15.0 12.8 117 13.8 11.2 123 BURGESS JUNCTION 7880 10.1 9.2 110 10.2 8.3 123 CLOUD PEAK RESERVOIR 9860 14.7 10.5 140 12.4 9.8 127 DOME LAKE 8880 9.2 10.8 85 11.7 10.0 117 GRAVE SPRINGS 8550 9.5 -M * 9.2 7.2 128 HANSEN SAWMILL 8760 6.0 5.5 109 6.4 5.8 110 LOST CREEK 8080 12.0 10.1 119 12.2 9.0 136 MIDDLE POWDER 7760 12.2 9.3 131 11.1 8.9 125 POWDER RIVER PASS 9480 11.9 8.4 142 11.3 9.1 124 SUCKER CREEK 8880 11.7 9.3 126 11.4 10.1 113 TIE CREEK 6870 6.8 -M * 9.4 7.9 119 ----- ----- Basin wide percent of average 119 121 BELLE FOURCHE BLIND PARK 6890 9.5 8.7 109 13.6 7.3 186 NORTH RAPID CREEK 6130 9.6 -M * 11.8 -M * WARREN PEAK 6520 15.4 8.7 177 -M 6.0 * ----- ----- Basin wide percent of average 143 186* UPPER N. PLATTE RIVER COLUMBINE 9400 27.3 19.9 137 26.5 19.6 135 DIVIDE PEAK 8800 21.4 16.1 133 20.9 18.1 115 ELK RIVER 8700 25.0 15.9 157 22.5 14.9 151 JOE WRIGHT 10120 20.3 16.7 122 25.9 19.4 134 NORTH FRENCH CREEK 10100 31.1 19.5 159 25.4 18.1 140 OLD BATTLE 10000 33.9 25.0 136 28.2 23.4 121 SOUTH BRUSH CREEK 8400 13.8 8.9 155 15.5 12.4 125 TOWER 10500 49.3 35.8 138 36.2 28.7 126 WEBBER SPRINGS 9200 27.5 21.3 129 31.5 19.8 159 WILLOW CREEK PASS 9540 16.0 8.8 182 12.5 9.5 132 ----- ----- Basin wide percent of average 141 133 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 29.6 19.0 156 23.3 14.8 157 CASPER MTN. 7900 17.3 11.7 148 16.2 10.3 157 CHRISTINA LAKE 9980 17.7 12.2 145 19.5 12.8 152 DEADMAN HILL 10220 13.5 13.0 104 15.3 12.4 123 LAPRELE CREEK 8320 12.4 8.0 155 12.4 8.8 141 RENO HILL 8400 18.6 10.2 182 15.8 13.9 114 ROACH 9700 19.1 13.4 143 19.3 16.6 116 SAND LAKE 10080 31.6 25.6 123 25.0 15.8 158 SOUTH PASS 9040 23.0 13.4 172 21.7 13.2 164 WINDY PEAK 7840 9.1 5.8 157 9.9 6.8 146 ----- ----- Basin wide percent of average 145 142 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 15.5 9.3 167 16.3 12.2 134 DIVIDE PEAK 8800 21.4 16.1 133 20.9 18.1 115 OLD BATTLE 10000 33.9 25.0 136 28.2 23.4 121 SANDSTONE RS 8150 18.1 11.6 156 20.3 15.0 135 WHISKEY PARK 8950 34.0 22.5 151 29.5 22.0 134 ----- ----- Basin wide percent of average 145 127 UPPER GREEN RIVER BIG SANDY OPENING 9100 16.6 11.5 144 15.4 13.9 111 BLIND BULL SUM 8650 36.2 23.2 156 -M 20.1 * EAST RIM DIVIDE 7930 14.8 11.4 130 15.2 13.1 116 ELKHART PARK G.S. 9400 16.2 11.0 147 16.5 13.7 120 GROS VENTRE SUMMIT 8775 18.8 12.4 152 17.6 13.6 129 KENDALL R.S. 7740 21.2 11.9 178 17.2 13.3 129 LOOMIS PARK 8240 -M 14.3 * 19.5 16.2 120 NEW FORK LAKE 8340 13.1 9.5 138 11.9 12.4 96 SNIDER BASIN 8250 20.7 12.2 170 17.5 13.1 134 SPRING CREEK DIVIDE 9000 31.8 22.2 143 -M 23.1 * TRIPLE PEAK 8500 30.9 20.8 149 32.5 26.8 121 ----- ----- Basin wide percent of average 151 120 LOWER GREEN RIVER HAMS FORK 7840 15.7 10.0 157 13.4 11.5 117 HEWINTA 9500 11.4 8.0 143 12.3 9.8 126 HICKERSON PARK 9150 6.2 4.7 132 7.7 6.9 112 HOLE-IN-ROCK 9150 6.9 4.2 164 8.1 6.9 117 INDIAN CREEK 9425 35.0 21.9 160 28.4 21.6 131 KELLEY R.S. 8180 21.6 13.5 160 24.4 16.1 152 STEEL CREEK PARK 10100 13.7 11.9 115 13.3 9.9 134 ----- ----- Basin wide percent of average 149 130 UPPER BEAR RIVER BUG LAKE 7950 28.8 16.1 179 26.4 15.2 174 HAYDEN FORK 9400 18.2 13.0 140 22.7 14.5 157 KELLEY R.S. 8180 21.6 13.5 160 24.4 16.1 152 LILY LAKE 9050 15.8 10.1 156 17.2 11.2 154 MONTE CRISTO 8960 37.0 22.0 168 30.0 19.9 151 SALT RIVER SUMMIT 7600 19.6 11.5 170 21.1 14.5 146 TRIAL LAKE 9960 32.8 19.9 165 32.0 18.7 171 ----- ----- Basin wide percent of average 164 158 ----------------------------------------------------------------------------- -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.