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 MONDAY: AUGUST 11 , 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 * 49.8 31.4 159 COTTONWOOD CREEK 7600 .1 .0 * 49.4 34.9 142 GRANITE CREEK 6770 -M .0 * 43.2 34.6 125 GRASSY LAKE 7265 .0 .0 100* 73.5 51.9 142 GROS VENTRE SUMMIT 8775 .0 .0 100* 31.9 23.4 136 LEWIS LAKE DIVIDE 7860 .0 .0 100* 73.1 52.7 139 PHILLIPS BENCH 8200 .0 .0 100* 62.2 41.5 150 SALT RIVER SUMMIT 7600 .1 .0 * 35.0 24.9 141 SNAKE RIVER STATION 6920 .0 .0 100* 51.0 36.4 140 SPRING CREEK DIVIDE 9000 .0 .0 100* 44.4 37.5 118 THUMB DIVIDE 7980 .0 .0 100* 46.5 29.4 158 TOGWOTEE PASS 9580 .1 .0 * 52.7 39.5 133 TWO OCEAN PLATEAU 9360 .1 .0 * 61.5 43.2 142 WILLOW CREEK 8450 .0 .0 100* 67.5 44.7 151 ----- ----- Basin wide percent of average * 141 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 .2 .0 * 41.9 30.1 139 BLACK BEAR 7950 -M .0 * 85.4 57.2 149 CANYON 7940 .0 .0 100* 34.9 24.0 145 FISHER CREEK 9100 .3 .0 * 68.5 54.5 126 MADISON PLATEAU 7750 .0 .0 100* 53.3 38.7 138 NORTHEAST ENTRANCE 7350 .0 .0 100* 32.5 21.7 150 PARKER PEAK 9400 .2 .0 * 35.8 27.7 129 SYLVAN LAKE 8420 .0 .0 100* 48.3 32.9 147 THUMB DIVIDE 7980 .0 .0 100* 46.5 29.4 158 TWO OCEAN PLATEAU 9360 .1 .0 * 61.5 43.2 142 WHISKEY CREEK 6800 .4 .0 * 41.4 33.1 125 WHITE MILL 8700 .0 .0 100* 53.6 42.9 125 WOLVERINE 7650 .4 .0 * 25.3 23.4 108 ----- ----- Basin wide percent of average * 137 WIND RIVER BURROUGHS CREEK 8750 .0 .0 100* 38.0 26.3 144 CHRISTINA LAKE 9980 .1 .0 * 33.6 28.1 120 COLD SPRINGS 9630 .2 .0 * 25.3 20.2 125 HOBBS PARK 10100 .0 .0 100* 25.4 25.4 100 LITTLE WARM 9620 .5 .0 * 32.4 23.7 137 SOUTH PASS 9040 .3 .0 * 32.9 28.4 116 ST. LAWRENCE ALT 8620 .0 .0 100* 22.9 18.7 122 TOGWOTEE PASS 9580 .1 .0 * 52.7 39.5 133 TOWNSEND CREEK 8700 .0 .0 100* -M 22.7 * ----- ----- Basin wide percent of average * 125 BIGHORN BASIN BALD MTN. 9375 .2 .0 * 35.5 29.9 119 BEAR TRAP MEADOW 7900 .2 .0 * 23.7 18.1 131 BLACKWATER 9780 .1 .0 * 45.6 31.9 143 BONE SPRINGS DIV 9350 .3 .0 * 31.9 28.0 114 EVENING STAR 9200 .1 .0 * 55.9 38.8 144 GRAVE SPRINGS 8550 -M -M * 23.3 21.2 110 KIRWIN 9550 .1 .0 * 30.4 22.3 136 LOST CREEK 8080 -M .0 * -M 23.5 * MARQUETTE 8760 .0 .0 100* 28.1 22.6 124 MIDDLE POWDER 7760 .2 .0 * 30.6 23.0 133 OWL CREEK 8975 .4 .0 * -M 14.9 * POWDER RIVER PASS 9480 .4 .0 * 33.3 22.8 146 SHELL CREEK 9580 .1 .0 * 27.5 25.3 109 SYLVAN LAKE 8420 .0 .0 100* 48.3 32.9 147 SYLVAN ROAD 8120 .0 .0 100* 37.7 28.1 134 TIMBER CREEK 7950 .1 .0 * 21.1 18.1 117 YOUNTS PEAK 8350 .4 .0 * -M 27.5 * ----- ----- Basin wide percent of average * 130 SHOSHONE RIVER BLACKWATER 9780 .1 .0 * 45.6 31.9 143 EVENING STAR 9200 .1 .0 * 55.9 38.8 144 KIRWIN 9550 .1 .0 * 30.4 22.3 136 MARQUETTE 8760 .0 .0 100* 28.1 22.6 124 SYLVAN LAKE 8420 .0 .0 100* 48.3 32.9 147 SYLVAN ROAD 8120 .0 .0 100* 37.7 28.1 134 YOUNTS PEAK 8350 .4 .0 * -M 27.5 * ----- ----- Basin wide percent of average * 139 POWDER-TONGUE BEAR TRAP MEADOW 7900 .2 .0 * 23.7 18.1 131 BONE SPRINGS DIV 9350 .3 .0 * 31.9 28.0 114 BURGESS JUNCTION 7880 .2 .0 * 26.9 22.4 120 CLOUD PEAK RESERVOIR 9860 .0 .0 100* -M 26.9 * DOME LAKE 8880 .0 .0 100* 31.5 24.8 127 GRAVE SPRINGS 8550 -M -M * 23.3 21.2 110 HANSEN SAWMILL 8760 .0 .0 100* 24.9 17.9 139 LOST CREEK 8080 -M .0 * -M 23.5 * MIDDLE POWDER 7760 .2 .0 * 30.6 23.0 133 POWDER RIVER PASS 9480 .4 .0 * 33.3 22.8 146 SUCKER CREEK 8880 .2 .0 * 31.0 25.9 120 TIE CREEK 6870 .2 -M * 31.2 21.5 145 ----- ----- Basin wide percent of average * 128 BELLE FOURCHE BLIND PARK 6890 -M .0 * 30.5 25.2 121 NORTH RAPID CREEK 6130 .5 -M * 34.8 -M * WARREN PEAK 6520 -M .0 * 34.0 19.2 177 ----- ----- Basin wide percent of average * 145 UPPER N. PLATTE RIVER COLUMBINE 9400 .0 .0 100* 46.1 34.6 133 DIVIDE PEAK 8800 .0 .0 100* 35.2 34.1 103 ELK RIVER 8700 .1 .0 * 37.7 28.2 134 JOE WRIGHT 10120 .0 .0 100* 44.1 41.3 107 NORTH FRENCH CREEK 10100 .8 .0 * 44.2 36.8 120 OLD BATTLE 10000 .0 .0 100* 53.2 44.2 120 SOUTH BRUSH CREEK 8400 .0 .0 100* 27.9 28.0 100 TOWER 10500 .1 .0 * 69.1 54.4 127 WEBBER SPRINGS 9200 .0 .0 100* 46.7 37.9 123 WILLOW CREEK PASS 9540 .0 .0 100* 28.1 22.9 123 ----- ----- Basin wide percent of average * 119 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .0 .0 100* 42.7 31.2 137 CASPER MTN. 7900 .1 .0 * 31.6 27.5 115 CHRISTINA LAKE 9980 .1 .0 * 33.6 28.1 120 DEADMAN HILL 10220 .0 .0 100* 31.3 29.6 106 LAPRELE CREEK 8320 .0 .0 100* 24.6 22.8 108 RENO HILL 8400 .1 .0 * 31.6 28.8 110 ROACH 9700 .0 .0 100* 34.2 34.8 98 SAND LAKE 10080 .0 .0 100* 44.4 32.5 137 SOUTH PASS 9040 .3 .0 * 32.9 28.4 116 WINDY PEAK 7840 .1 .0 * 22.2 20.3 109 ----- ----- Basin wide percent of average * 116 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .4 .0 * 18.9 23.3 81 DIVIDE PEAK 8800 .0 .0 100* 35.2 34.1 103 OLD BATTLE 10000 .0 .0 100* 53.2 44.2 120 SANDSTONE RS 8150 .0 .0 100* 30.2 29.4 103 WHISKEY PARK 8950 .0 .0 100* 47.8 42.0 114 ----- ----- Basin wide percent of average * 107 UPPER GREEN RIVER BIG SANDY OPENING 9100 .1 .0 * 24.5 23.9 103 BLIND BULL SUM 8650 .0 .0 100* 47.4 32.6 145 EAST RIM DIVIDE 7930 .2 .0 * -M 22.3 * ELKHART PARK G.S. 9400 .0 .0 100* 29.8 23.5 127 GROS VENTRE SUMMIT 8775 .0 .0 100* 31.9 23.4 136 KENDALL R.S. 7740 .1 .0 * 33.4 22.8 146 LOOMIS PARK 8240 .1 .0 * 39.0 27.7 141 NEW FORK LAKE 8340 .0 .0 100* 22.0 21.3 103 SNIDER BASIN 8250 .1 .0 * 25.9 22.3 116 SPRING CREEK DIVIDE 9000 .0 .0 100* 44.4 37.5 118 TRIPLE PEAK 8500 .0 .0 100* 52.8 43.6 121 ----- ----- Basin wide percent of average * 126 LOWER GREEN RIVER HAMS FORK 7840 .1 .0 * 24.0 19.7 122 HEWINTA 9500 .1 .0 * 24.5 23.3 105 HICKERSON PARK 9150 .0 .0 100* 18.1 19.5 93 HOLE-IN-ROCK 9150 .2 .0 * 18.8 19.5 96 INDIAN CREEK 9425 .0 .0 100* 42.7 36.2 118 KELLEY R.S. 8180 .1 .0 * 40.3 27.6 146 STEEL CREEK PARK 10100 -M .0 * 26.3 26.8 98 ----- ----- Basin wide percent of average * 113 UPPER BEAR RIVER BUG LAKE 7950 .2 .0 * 40.7 27.4 149 HAYDEN FORK 9400 .0 .0 100* 35.2 30.6 115 KELLEY R.S. 8180 .1 .0 * 40.3 27.6 146 LILY LAKE 9050 .0 .0 100* 29.6 25.1 118 MONTE CRISTO 8960 .5 .0 * 47.0 37.2 126 SALT RIVER SUMMIT 7600 .1 .0 * 35.0 24.9 141 TRIAL LAKE 9960 .2 .0 * -M 36.1 * ----- ----- 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.