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 25 , 1997 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 29.5 17.3 171 33.9 22.2 153 COTTONWOOD CREEK 7600 30.3 23.3 130 31.8 24.9 128 GRANITE CREEK 6770 28.2 18.1 156 32.5 23.3 139 GRASSY LAKE 7265 44.7 34.9 128 51.2 36.8 139 GROS VENTRE SUMMIT 8775 21.9 15.2 144 21.0 15.8 133 LEWIS LAKE DIVIDE 7860 51.3 34.5 149 46.1 37.4 123 PHILLIPS BENCH 8200 41.3 28.4 145 44.9 29.6 152 SALT RIVER SUMMIT 7600 21.4 14.0 153 23.3 16.8 139 SNAKE RIVER STATION 6920 27.8 18.3 152 35.7 25.8 138 SPRING CREEK DIVIDE 9000 34.1 27.3 125 32.2 27.2 118 THUMB DIVIDE 7980 30.8 16.6 186 -M 20.7 * TOGWOTEE PASS 9580 34.0 24.3 140 -M 28.0 * TWO OCEAN PLATEAU 9360 43.7 25.9 169 -M 30.6 * WILLOW CREEK 8450 40.6 29.6 137 40.0 31.9 125 ----- ----- Basin wide percent of average 146 135 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 34.7 23.0 151 29.8 17.5 170 BLACK BEAR 7950 -M 37.1 * -M 39.6 * CANYON 7940 23.6 12.6 187 26.0 13.9 187 FISHER CREEK 9100 55.2 34.9 158 -M 35.7 * MADISON PLATEAU 7750 41.0 23.9 172 41.7 25.6 163 NORTHEAST ENTRANCE 7350 12.1 9.0 134 19.1 11.5 166 PARKER PEAK 9400 30.8 21.1 146 -M 15.1 * SYLVAN LAKE 8420 31.5 21.5 147 31.9 18.6 172 THUMB DIVIDE 7980 30.8 16.6 186 -M 20.7 * TWO OCEAN PLATEAU 9360 43.7 25.9 169 -M 30.6 * WHISKEY CREEK 6800 24.9 16.9 147 31.2 21.3 146 WHITE MILL 8700 37.9 24.4 155 -M 27.6 * WOLVERINE 7650 14.1 11.4 124 15.1 12.4 122 ----- ----- Basin wide percent of average 158 161 WIND RIVER BURROUGHS CREEK 8750 23.6 14.7 161 25.4 16.1 158 CHRISTINA LAKE 9980 19.1 14.8 129 22.1 16.0 138 COLD SPRINGS 9630 10.1 8.1 125 11.7 10.1 116 HOBBS PARK 10100 16.7 14.4 116 13.1 13.5 97 LITTLE WARM 9620 17.3 11.1 156 19.3 12.7 152 SOUTH PASS 9040 25.3 15.9 159 24.3 16.4 148 ST. LAWRENCE ALT 8620 8.4 7.4 114 10.5 9.7 108 TOGWOTEE PASS 9580 34.0 24.3 140 -M 28.0 * TOWNSEND CREEK 8700 9.9 9.5 104 11.4 11.9 96 ----- ----- Basin wide percent of average 137 130 BIGHORN BASIN BALD MTN. 9375 21.3 19.8 108 17.8 16.7 107 BEAR TRAP MEADOW 7900 7.3 6.9 106 8.1 7.8 104 BLACKWATER 9780 36.9 21.5 172 28.0 17.4 161 BONE SPRINGS DIV 9350 17.9 15.8 113 15.7 14.3 110 EVENING STAR 9200 40.3 26.2 154 39.0 21.9 178 GRAVE SPRINGS 8550 11.4 -M * 10.6 9.1 116 KIRWIN 9550 14.2 9.6 148 15.5 10.3 150 LOST CREEK 8080 14.5 13.0 112 14.9 11.2 133 MARQUETTE 8760 10.9 7.8 140 11.3 9.0 126 MIDDLE POWDER 7760 16.0 11.7 137 13.9 11.2 124 OWL CREEK 8975 7.8 4.4 177 6.4 5.9 108 POWDER RIVER PASS 9480 12.2 10.5 116 13.1 11.0 119 SHELL CREEK 9580 16.9 14.5 117 14.2 12.5 114 SYLVAN LAKE 8420 31.5 21.5 147 31.9 18.6 172 SYLVAN ROAD 8120 20.0 12.4 161 26.2 15.6 168 TIMBER CREEK 7950 7.0 6.0 117 7.9 6.6 120 YOUNTS PEAK 8350 23.5 16.8 140 -M 16.1 * ----- ----- Basin wide percent of average 137 138 SHOSHONE RIVER BLACKWATER 9780 36.9 21.5 172 28.0 17.4 161 EVENING STAR 9200 40.3 26.2 154 39.0 21.9 178 KIRWIN 9550 14.2 9.6 148 15.5 10.3 150 MARQUETTE 8760 10.9 7.8 140 11.3 9.0 126 SYLVAN LAKE 8420 31.5 21.5 147 31.9 18.6 172 SYLVAN ROAD 8120 20.0 12.4 161 26.2 15.6 168 YOUNTS PEAK 8350 23.5 16.8 140 -M 16.1 * ----- ----- Basin wide percent of average 153 164 POWDER-TONGUE BEAR TRAP MEADOW 7900 7.3 6.9 106 8.1 7.8 104 BONE SPRINGS DIV 9350 17.9 15.8 113 15.7 14.3 110 BURGESS JUNCTION 7880 12.8 11.3 113 12.4 10.8 115 CLOUD PEAK RESERVOIR 9860 17.1 14.1 121 14.5 12.6 115 DOME LAKE 8880 12.4 13.3 93 13.7 12.6 109 GRAVE SPRINGS 8550 11.4 -M * 10.6 9.1 116 HANSEN SAWMILL 8760 7.3 6.9 106 8.1 7.5 108 LOST CREEK 8080 14.5 13.0 112 14.9 11.2 133 MIDDLE POWDER 7760 16.0 11.7 137 13.9 11.2 124 POWDER RIVER PASS 9480 12.2 10.5 116 13.1 11.0 119 SUCKER CREEK 8880 13.8 11.7 118 13.9 12.5 111 TIE CREEK 6870 -M -M * -M 10.4 * ----- ----- Basin wide percent of average 114 115 BELLE FOURCHE BLIND PARK 6890 9.7 10.7 91 13.9 9.5 146 NORTH RAPID CREEK 6130 9.0 -M * 12.4 -M * WARREN PEAK 6520 16.6 10.7 155 -M 7.6 * ----- ----- Basin wide percent of average 123 146* UPPER N. PLATTE RIVER COLUMBINE 9400 28.3 24.3 116 29.6 23.6 125 DIVIDE PEAK 8800 25.1 20.2 124 23.6 21.9 108 ELK RIVER 8700 25.9 19.3 134 24.0 18.4 130 JOE WRIGHT 10120 23.1 21.1 109 27.5 23.9 115 NORTH FRENCH CREEK 10100 34.1 24.5 139 27.6 22.5 123 OLD BATTLE 10000 38.4 30.8 125 36.5 28.9 126 SOUTH BRUSH CREEK 8400 13.4 12.5 107 16.8 15.5 108 TOWER 10500 52.7 43.7 121 46.3 34.8 133 WEBBER SPRINGS 9200 29.9 26.9 111 34.6 24.2 143 WILLOW CREEK PASS 9540 16.7 11.4 146 13.7 12.0 114 ----- ----- Basin wide percent of average 123 124 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 34.6 24.8 140 26.0 18.5 141 CASPER MTN. 7900 20.4 15.5 132 18.9 13.3 142 CHRISTINA LAKE 9980 19.1 14.8 129 22.1 16.0 138 DEADMAN HILL 10220 15.3 15.9 96 17.4 15.9 109 LAPRELE CREEK 8320 14.4 10.1 143 13.7 11.2 122 RENO HILL 8400 21.6 13.5 160 18.5 18.2 102 ROACH 9700 22.9 16.7 137 21.0 20.2 104 SAND LAKE 10080 35.4 31.7 112 28.0 19.4 144 SOUTH PASS 9040 25.3 15.9 159 24.3 16.4 148 WINDY PEAK 7840 10.1 8.3 122 10.7 9.0 119 ----- ----- Basin wide percent of average 131 127 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 14.8 11.1 133 25.7 14.7 175 DIVIDE PEAK 8800 25.1 20.2 124 23.6 21.9 108 OLD BATTLE 10000 38.4 30.8 125 36.5 28.9 126 SANDSTONE RS 8150 17.5 14.4 122 21.5 17.9 120 WHISKEY PARK 8950 35.8 27.9 128 32.2 26.9 120 ----- ----- Basin wide percent of average 126 126 UPPER GREEN RIVER BIG SANDY OPENING 9100 18.7 14.2 132 21.3 16.1 132 BLIND BULL SUM 8650 41.2 28.7 144 32.5 23.8 137 EAST RIM DIVIDE 7930 16.8 13.7 123 17.0 15.1 113 ELKHART PARK G.S. 9400 18.2 13.4 136 18.2 15.8 115 GROS VENTRE SUMMIT 8775 21.9 15.2 144 21.0 15.8 133 KENDALL R.S. 7740 24.1 14.6 165 23.5 15.4 153 LOOMIS PARK 8240 -M 17.1 * 26.9 18.7 144 NEW FORK LAKE 8340 14.7 11.1 132 13.1 14.4 91 SNIDER BASIN 8250 23.0 14.5 159 19.0 15.1 126 SPRING CREEK DIVIDE 9000 34.1 27.3 125 32.2 27.2 118 TRIPLE PEAK 8500 36.5 25.0 146 36.7 30.8 119 ----- ----- Basin wide percent of average 140 126 LOWER GREEN RIVER HAMS FORK 7840 16.0 12.1 132 14.6 13.3 110 HEWINTA 9500 10.6 10.9 97 14.0 12.4 113 HICKERSON PARK 9150 8.1 6.4 127 9.2 9.0 102 HOLE-IN-ROCK 9150 7.5 6.1 123 9.7 9.0 108 INDIAN CREEK 9425 38.7 27.8 139 31.1 25.7 121 KELLEY R.S. 8180 23.6 16.7 141 25.7 18.7 137 STEEL CREEK PARK 10100 15.6 15.7 99 15.4 12.2 126 ----- ----- Basin wide percent of average 125 119 UPPER BEAR RIVER BUG LAKE 7950 33.3 20.3 164 29.2 18.8 155 HAYDEN FORK 9400 17.9 16.0 112 25.0 18.2 137 KELLEY R.S. 8180 23.6 16.7 141 25.7 18.7 137 LILY LAKE 9050 16.7 12.7 131 19.2 14.1 136 MONTE CRISTO 8960 37.0 28.5 130 32.6 24.6 133 SALT RIVER SUMMIT 7600 21.4 14.0 153 23.3 16.8 139 TRIAL LAKE 9960 34.7 24.5 142 34.4 23.0 150 ----- ----- Basin wide percent of average 139 141 ----------------------------------------------------------------------------- -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.