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 18 , 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 16.9 175 33.2 21.6 154 COTTONWOOD CREEK 7600 30.2 22.1 137 30.7 24.2 127 GRANITE CREEK 6770 28.2 17.4 162 24.4 22.7 107 GRASSY LAKE 7265 44.5 33.6 132 39.4 35.6 111 GROS VENTRE SUMMIT 8775 21.3 14.6 146 20.2 15.4 131 LEWIS LAKE DIVIDE 7860 51.3 33.3 154 -M 36.1 * PHILLIPS BENCH 8200 40.6 27.4 148 43.8 28.6 153 SALT RIVER SUMMIT 7600 21.4 13.5 159 23.3 16.3 143 SNAKE RIVER STATION 6920 27.8 17.9 155 35.2 24.9 141 SPRING CREEK DIVIDE 9000 33.8 26.2 129 -M 26.3 * THUMB DIVIDE 7980 31.3 16.0 196 -M 20.2 * TOGWOTEE PASS 9580 33.4 23.3 143 -M 27.1 * TWO OCEAN PLATEAU 9360 42.9 25.1 171 -M 29.7 * WILLOW CREEK 8450 41.0 28.8 142 38.7 31.0 125 ----- ----- Basin wide percent of average 151 131 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 26.5 22.2 119 -M 16.8 * BLACK BEAR 7950 -M 35.8 * -M 37.9 * CANYON 7940 23.4 12.1 193 25.8 13.4 193 FISHER CREEK 9100 54.7 33.6 163 -M 34.2 * MADISON PLATEAU 7750 41.0 23.1 177 40.6 24.5 166 NORTHEAST ENTRANCE 7350 12.4 8.9 139 18.8 11.1 169 PARKER PEAK 9400 30.6 20.3 151 -M 14.5 * SYLVAN LAKE 8420 30.3 20.7 146 -M 17.9 * THUMB DIVIDE 7980 31.3 16.0 196 -M 20.2 * TWO OCEAN PLATEAU 9360 42.9 25.1 171 -M 29.7 * WHISKEY CREEK 6800 25.1 16.3 154 30.9 20.3 152 WHITE MILL 8700 37.4 23.8 157 -M 26.5 * WOLVERINE 7650 15.3 11.1 138 15.1 12.0 126 ----- ----- Basin wide percent of average 159 161* WIND RIVER BURROUGHS CREEK 8750 23.2 14.3 162 -M 15.5 * CHRISTINA LAKE 9980 18.4 14.2 130 21.4 15.2 141 COLD SPRINGS 9630 10.4 7.8 133 11.2 9.6 117 HOBBS PARK 10100 16.2 13.8 117 12.8 12.8 100 LITTLE WARM 9620 15.6 10.6 147 18.0 12.2 148 SOUTH PASS 9040 25.4 15.4 165 23.9 15.6 153 ST. LAWRENCE ALT 8620 8.7 7.1 123 10.1 9.2 110 TOGWOTEE PASS 9580 33.4 23.3 143 -M 27.1 * TOWNSEND CREEK 8700 9.6 9.2 104 10.9 11.3 96 ----- ----- Basin wide percent of average 139 126 BIGHORN BASIN BALD MTN. 9375 20.8 19.1 109 17.3 15.9 109 BEAR TRAP MEADOW 7900 7.7 6.6 117 7.9 7.3 108 BLACKWATER 9780 36.4 20.6 177 27.6 16.8 164 BONE SPRINGS DIV 9350 17.4 15.2 114 15.4 13.6 113 EVENING STAR 9200 39.6 25.2 157 -M 21.0 * GRAVE SPRINGS 8550 10.8 -M * 10.1 8.6 117 KIRWIN 9550 13.8 9.2 150 15.2 9.8 155 LOST CREEK 8080 14.1 12.3 115 14.2 10.7 133 MARQUETTE 8760 10.1 7.4 136 10.7 8.4 127 MIDDLE POWDER 7760 14.6 11.1 132 13.1 10.6 124 OWL CREEK 8975 7.7 4.2 183 6.3 5.6 113 POWDER RIVER PASS 9480 12.7 10.1 126 12.6 10.6 119 SHELL CREEK 9580 16.7 14.0 119 13.9 12.0 116 SYLVAN LAKE 8420 30.3 20.7 146 -M 17.9 * SYLVAN ROAD 8120 20.3 12.3 165 25.8 15.0 172 TIMBER CREEK 7950 7.0 5.7 123 7.5 6.1 123 YOUNTS PEAK 8350 23.0 16.2 142 -M 15.4 * ----- ----- Basin wide percent of average 139 131 SHOSHONE RIVER BLACKWATER 9780 36.4 20.6 177 27.6 16.8 164 EVENING STAR 9200 39.6 25.2 157 -M 21.0 * KIRWIN 9550 13.8 9.2 150 15.2 9.8 155 MARQUETTE 8760 10.1 7.4 136 10.7 8.4 127 SYLVAN LAKE 8420 30.3 20.7 146 -M 17.9 * SYLVAN ROAD 8120 20.3 12.3 165 25.8 15.0 172 YOUNTS PEAK 8350 23.0 16.2 142 -M 15.4 * ----- ----- Basin wide percent of average 155 159 POWDER-TONGUE BEAR TRAP MEADOW 7900 7.7 6.6 117 7.9 7.3 108 BONE SPRINGS DIV 9350 17.4 15.2 114 15.4 13.6 113 BURGESS JUNCTION 7880 11.7 10.9 107 11.8 10.2 116 CLOUD PEAK RESERVOIR 9860 16.6 13.3 125 13.8 11.9 116 DOME LAKE 8880 12.0 12.7 94 13.1 11.9 110 GRAVE SPRINGS 8550 10.8 -M * 10.1 8.6 117 HANSEN SAWMILL 8760 7.1 6.6 108 7.8 7.0 111 LOST CREEK 8080 14.1 12.3 115 14.2 10.7 133 MIDDLE POWDER 7760 14.6 11.1 132 13.1 10.6 124 POWDER RIVER PASS 9480 12.7 10.1 126 12.6 10.6 119 SUCKER CREEK 8880 13.1 11.1 118 13.6 11.9 114 TIE CREEK 6870 8.0 -M * 10.7 9.7 110 ----- ----- Basin wide percent of average 116 116 BELLE FOURCHE BLIND PARK 6890 9.8 10.3 95 14.0 8.9 157 NORTH RAPID CREEK 6130 -M -M * -M -M * WARREN PEAK 6520 16.7 10.3 162 -M 7.2 * ----- ----- Basin wide percent of average 129 157* UPPER N. PLATTE RIVER COLUMBINE 9400 29.6 23.7 125 29.3 22.7 129 DIVIDE PEAK 8800 24.5 19.2 128 23.7 20.9 113 ELK RIVER 8700 26.8 18.7 143 24.0 17.5 137 JOE WRIGHT 10120 21.6 20.0 108 27.4 22.8 120 NORTH FRENCH CREEK 10100 33.7 23.4 144 30.0 21.4 140 OLD BATTLE 10000 33.9 29.3 116 33.5 27.6 121 SOUTH BRUSH CREEK 8400 14.0 11.6 121 16.6 14.8 112 TOWER 10500 52.4 41.9 125 36.7 33.4 110 WEBBER SPRINGS 9200 29.9 25.5 117 34.3 23.2 148 WILLOW CREEK PASS 9540 16.8 10.8 156 13.9 11.4 122 ----- ----- Basin wide percent of average 126 125 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 32.6 23.3 140 24.8 17.6 141 CASPER MTN. 7900 19.1 14.4 133 18.0 12.6 143 CHRISTINA LAKE 9980 18.4 14.2 130 21.4 15.2 141 DEADMAN HILL 10220 15.1 15.3 99 17.2 15.0 115 LAPRELE CREEK 8320 14.0 9.6 146 13.6 10.6 128 RENO HILL 8400 20.2 12.7 159 17.4 17.1 102 ROACH 9700 21.9 15.9 138 20.8 19.4 107 SAND LAKE 10080 34.8 30.4 114 27.4 18.6 147 SOUTH PASS 9040 25.4 15.4 165 23.9 15.6 153 WINDY PEAK 7840 9.8 7.8 126 11.2 8.4 133 ----- ----- Basin wide percent of average 133 130 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 16.5 10.9 151 18.6 14.1 132 DIVIDE PEAK 8800 24.5 19.2 128 23.7 20.9 113 OLD BATTLE 10000 33.9 29.3 116 33.5 27.6 121 SANDSTONE RS 8150 19.8 13.8 143 21.6 17.2 126 WHISKEY PARK 8950 37.3 26.8 139 31.5 25.6 123 ----- ----- Basin wide percent of average 132 122 UPPER GREEN RIVER BIG SANDY OPENING 9100 18.5 13.6 136 19.7 15.7 125 BLIND BULL SUM 8650 40.9 27.6 148 32.3 23.0 140 EAST RIM DIVIDE 7930 16.7 13.3 126 17.0 14.6 116 ELKHART PARK G.S. 9400 17.8 13.0 137 18.1 15.4 118 GROS VENTRE SUMMIT 8775 21.3 14.6 146 20.2 15.4 131 KENDALL R.S. 7740 24.3 14.5 168 18.9 15.0 126 LOOMIS PARK 8240 -M 16.7 * 20.9 18.2 115 NEW FORK LAKE 8340 14.3 10.8 132 13.2 13.9 95 SNIDER BASIN 8250 23.1 14.2 163 19.0 14.6 130 SPRING CREEK DIVIDE 9000 33.8 26.2 129 -M 26.3 * TRIPLE PEAK 8500 34.7 24.2 143 35.2 30.0 117 ----- ----- Basin wide percent of average 143 122 LOWER GREEN RIVER HAMS FORK 7840 17.3 12.0 144 14.7 12.9 114 HEWINTA 9500 13.0 10.3 126 13.7 11.8 116 HICKERSON PARK 9150 7.8 6.0 130 8.8 8.5 104 HOLE-IN-ROCK 9150 7.5 5.7 132 9.3 8.5 109 INDIAN CREEK 9425 38.1 26.6 143 31.0 24.7 126 KELLEY R.S. 8180 23.1 16.1 143 24.8 18.1 137 STEEL CREEK PARK 10100 15.4 14.7 105 15.0 11.7 128 ----- ----- Basin wide percent of average 134 122 UPPER BEAR RIVER BUG LAKE 7950 32.6 19.3 169 29.1 17.9 163 HAYDEN FORK 9400 19.8 15.6 127 24.6 17.3 142 KELLEY R.S. 8180 23.1 16.1 143 24.8 18.1 137 LILY LAKE 9050 18.4 12.1 152 18.8 13.4 140 MONTE CRISTO 8960 40.2 27.0 149 32.5 23.5 138 SALT RIVER SUMMIT 7600 21.4 13.5 159 23.3 16.3 143 TRIAL LAKE 9960 35.7 23.9 149 34.2 22.1 155 ----- ----- Basin wide percent of average 150 146 ----------------------------------------------------------------------------- -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.