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 WEDNESDAY: AUGUST 13 , 1997 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 -M .0 * 49.9 31.4 159 COTTONWOOD CREEK 7600 .0 .0 100* 49.3 34.9 141 GRANITE CREEK 6770 .1 .0 * 43.4 34.7 125 GRASSY LAKE 7265 .0 .0 100* 73.7 52.0 142 GROS VENTRE SUMMIT 8775 .0 .0 100* 32.1 23.5 137 LEWIS LAKE DIVIDE 7860 .0 .0 100* 73.6 52.9 139 PHILLIPS BENCH 8200 .1 .0 * 62.3 41.7 149 SALT RIVER SUMMIT 7600 .1 .0 * 35.5 24.9 143 SNAKE RIVER STATION 6920 .0 .0 100* 51.6 36.5 141 SPRING CREEK DIVIDE 9000 .0 .0 100* 44.9 37.5 120 THUMB DIVIDE 7980 .1 .0 * 46.7 29.5 158 TOGWOTEE PASS 9580 .1 .0 * 53.6 39.7 135 TWO OCEAN PLATEAU 9360 .0 .0 100* 61.5 43.3 142 WILLOW CREEK 8450 .0 .0 100* 68.0 44.8 152 ----- ----- Basin wide percent of average * 141 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 .3 .0 * 42.3 30.3 140 BLACK BEAR 7950 -M .0 * 85.7 57.4 149 CANYON 7940 .0 .0 100* 34.9 24.1 145 FISHER CREEK 9100 .0 .0 100* 68.8 54.6 126 MADISON PLATEAU 7750 .1 .0 * 53.4 38.9 137 NORTHEAST ENTRANCE 7350 .0 .0 100* 32.7 21.8 150 PARKER PEAK 9400 .0 .0 100* 36.2 27.9 130 SYLVAN LAKE 8420 .0 .0 100* 48.5 33.0 147 THUMB DIVIDE 7980 .1 .0 * 46.7 29.5 158 TWO OCEAN PLATEAU 9360 .0 .0 100* 61.5 43.3 142 WHISKEY CREEK 6800 .1 .0 * 41.6 33.2 125 WHITE MILL 8700 .0 .0 100* 53.7 43.1 125 WOLVERINE 7650 .0 .0 100* 25.6 23.5 109 ----- ----- Basin wide percent of average * 137 WIND RIVER BURROUGHS CREEK 8750 .0 .0 100* 38.6 26.5 146 CHRISTINA LAKE 9980 -M .0 * -M 28.2 * COLD SPRINGS 9630 .0 .0 100* -M 20.3 * HOBBS PARK 10100 .0 .0 100* 26.2 25.5 103 LITTLE WARM 9620 .0 .0 100* 32.9 23.8 138 SOUTH PASS 9040 1.4 .0 * 31.8 28.5 112 ST. LAWRENCE ALT 8620 .0 .0 100* 23.4 18.7 125 TOGWOTEE PASS 9580 .1 .0 * 53.6 39.7 135 TOWNSEND CREEK 8700 .0 .0 100* 25.4 22.8 111 ----- ----- Basin wide percent of average * 125 BIGHORN BASIN BALD MTN. 9375 .1 .0 * 35.9 30.0 120 BEAR TRAP MEADOW 7900 .1 .0 * 23.6 18.2 130 BLACKWATER 9780 .2 .0 * 46.0 32.1 143 BONE SPRINGS DIV 9350 .2 .0 * 31.9 28.2 113 EVENING STAR 9200 .1 .0 * 56.0 39.0 144 GRAVE SPRINGS 8550 .0 -M * 23.6 21.2 111 KIRWIN 9550 -M .0 * -M 22.4 * LOST CREEK 8080 -M .0 * -M 23.6 * MARQUETTE 8760 .0 .0 100* 28.5 22.8 125 MIDDLE POWDER 7760 .1 .0 * 31.0 23.1 134 OWL CREEK 8975 .0 .0 100* 18.2 14.9 122 POWDER RIVER PASS 9480 .0 .0 100* 33.6 22.9 147 SHELL CREEK 9580 .1 .0 * 27.7 25.4 109 SYLVAN LAKE 8420 .0 .0 100* 48.5 33.0 147 SYLVAN ROAD 8120 .0 .0 100* 37.9 28.3 134 TIMBER CREEK 7950 .2 .0 * 21.7 18.2 119 YOUNTS PEAK 8350 .0 .0 100* 40.5 27.7 146 ----- ----- Basin wide percent of average * 131 SHOSHONE RIVER BLACKWATER 9780 .2 .0 * 46.0 32.1 143 EVENING STAR 9200 .1 .0 * 56.0 39.0 144 KIRWIN 9550 -M .0 * -M 22.4 * MARQUETTE 8760 .0 .0 100* 28.5 22.8 125 SYLVAN LAKE 8420 .0 .0 100* 48.5 33.0 147 SYLVAN ROAD 8120 .0 .0 100* 37.9 28.3 134 YOUNTS PEAK 8350 .0 .0 100* 40.5 27.7 146 ----- ----- Basin wide percent of average * 141 POWDER-TONGUE BEAR TRAP MEADOW 7900 .1 .0 * 23.6 18.2 130 BONE SPRINGS DIV 9350 .2 .0 * 31.9 28.2 113 BURGESS JUNCTION 7880 .2 .0 * 26.9 22.5 120 CLOUD PEAK RESERVOIR 9860 .0 .0 100* 34.4 27.0 127 DOME LAKE 8880 .0 .0 100* 30.6 24.9 123 GRAVE SPRINGS 8550 .0 -M * 23.6 21.2 111 HANSEN SAWMILL 8760 .0 .0 100* 25.0 18.0 139 LOST CREEK 8080 -M .0 * -M 23.6 * MIDDLE POWDER 7760 .1 .0 * 31.0 23.1 134 POWDER RIVER PASS 9480 .0 .0 100* 33.6 22.9 147 SUCKER CREEK 8880 .0 .0 100* 31.1 25.9 120 TIE CREEK 6870 .1 -M * 31.3 21.6 145 ----- ----- Basin wide percent of average * 127 BELLE FOURCHE BLIND PARK 6890 .0 .0 100* 30.5 25.3 121 NORTH RAPID CREEK 6130 .0 -M * 34.8 -M * WARREN PEAK 6520 .0 .0 100* 34.1 19.3 177 ----- ----- Basin wide percent of average * 145 UPPER N. PLATTE RIVER COLUMBINE 9400 .0 .0 100* 46.2 34.7 133 DIVIDE PEAK 8800 .0 .0 100* 35.9 34.2 105 ELK RIVER 8700 .1 .0 * 37.6 28.3 133 JOE WRIGHT 10120 .0 .0 100* 44.1 41.4 107 NORTH FRENCH CREEK 10100 1.1 .0 * 45.0 36.9 122 OLD BATTLE 10000 .0 .0 100* 54.2 44.4 122 SOUTH BRUSH CREEK 8400 .0 .0 100* 28.4 28.1 101 TOWER 10500 .0 .0 100* 69.6 54.5 128 WEBBER SPRINGS 9200 .0 .0 100* 47.2 37.9 125 WILLOW CREEK PASS 9540 .0 .0 100* 28.5 23.0 124 ----- ----- Basin wide percent of average * 120 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .0 .0 100* 43.0 31.4 137 CASPER MTN. 7900 .0 .0 100* 32.1 27.6 116 CHRISTINA LAKE 9980 -M .0 * -M 28.2 * DEADMAN HILL 10220 .0 .0 100* 31.4 29.8 105 LAPRELE CREEK 8320 .0 .0 100* 25.0 22.8 110 RENO HILL 8400 .1 .0 * 31.9 28.8 111 ROACH 9700 .0 .0 100* 34.4 34.9 99 SAND LAKE 10080 .0 .0 100* 45.0 32.6 138 SOUTH PASS 9040 1.4 .0 * 31.8 28.5 112 WINDY PEAK 7840 .1 .0 * 22.8 20.3 112 ----- ----- Basin wide percent of average * 116 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .3 .0 * 19.4 23.4 83 DIVIDE PEAK 8800 .0 .0 100* 35.9 34.2 105 OLD BATTLE 10000 .0 .0 100* 54.2 44.4 122 SANDSTONE RS 8150 .0 .0 100* 31.3 29.6 106 WHISKEY PARK 8950 .0 .0 100* 48.4 42.0 115 ----- ----- Basin wide percent of average * 109 UPPER GREEN RIVER BIG SANDY OPENING 9100 .1 .0 * 24.6 24.0 103 BLIND BULL SUM 8650 .0 .0 100* 47.9 32.7 146 EAST RIM DIVIDE 7930 .2 .0 * 27.2 22.4 121 ELKHART PARK G.S. 9400 .0 .0 100* 30.0 23.6 127 GROS VENTRE SUMMIT 8775 .0 .0 100* 32.1 23.5 137 KENDALL R.S. 7740 .1 .0 * 33.6 22.9 147 LOOMIS PARK 8240 .1 .0 * 39.5 27.8 142 NEW FORK LAKE 8340 .0 .0 100* 22.5 21.4 105 SNIDER BASIN 8250 .0 .0 100* 26.1 22.4 117 SPRING CREEK DIVIDE 9000 .0 .0 100* 44.9 37.5 120 TRIPLE PEAK 8500 .0 .0 100* 53.3 43.7 122 ----- ----- Basin wide percent of average * 126 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100* 24.2 19.7 123 HEWINTA 9500 .1 .0 * 25.0 23.4 107 HICKERSON PARK 9150 .0 .0 100* 18.3 19.6 93 HOLE-IN-ROCK 9150 .1 .0 * 19.1 19.6 97 INDIAN CREEK 9425 .0 .0 100* 42.9 36.3 118 KELLEY R.S. 8180 .0 .0 100* 40.5 27.7 146 STEEL CREEK PARK 10100 -M .0 * 26.8 27.0 99 ----- ----- Basin wide percent of average * 114 UPPER BEAR RIVER BUG LAKE 7950 .2 .0 * 41.8 27.4 153 HAYDEN FORK 9400 .0 .0 100* 35.3 30.7 115 KELLEY R.S. 8180 .0 .0 100* 40.5 27.7 146 LILY LAKE 9050 .0 .0 100* 29.8 25.2 118 MONTE CRISTO 8960 .0 .0 100* 47.8 37.3 128 SALT RIVER SUMMIT 7600 .1 .0 * 35.5 24.9 143 TRIAL LAKE 9960 .2 .0 * 46.4 36.3 128 ----- ----- Basin wide percent of average * 132 ----------------------------------------------------------------------------- -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.