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: AUGUST 8 , 1999 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .0 .0 100* 35.4 31.4 113 COTTONWOOD CREEK 7600 .2 .0 * 42.5 34.9 123 GRANITE CREEK 6770 .3 .0 * 32.3 34.5 94 GRASSY LAKE 7265 .0 .0 100* 57.9 51.8 112 GROS VENTRE SUMMIT 8775 .0 .0 100* 24.2 23.4 104 LEWIS LAKE DIVIDE 7860 .0 .0 100* 52.5 52.5 100 PHILLIPS BENCH 8200 .4 .0 * 43.2 41.5 105 SALT RIVER SUMMIT 7600 .0 .0 100* 28.0 24.9 113 SNAKE RIVER STATION 6920 .0 .0 100* 37.5 36.4 104 SPRING CREEK DIVIDE 9000 .0 .0 100* 41.0 37.5 110 THUMB DIVIDE 7980 .0 .0 100* 32.9 29.4 112 TOGWOTEE PASS 9580 .0 .0 100* 40.4 39.5 103 TWO OCEAN PLATEAU 9360 .0 .0 100* 44.3 43.2 103 WILLOW CREEK 8450 .0 .0 100* 55.5 44.7 125 ----- ----- Basin wide percent of average * 109 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 .0 .0 100* 34.7 30.0 116 BLACK BEAR 7950 .0 .0 100* 67.0 57.2 118 CANYON 7940 .0 .0 100* 28.0 23.9 118 FISHER CREEK 9100 .0 .0 100* 51.8 54.4 96 MADISON PLATEAU 7750 -M .0 * 43.7 38.5 114 NORTHEAST ENTRANCE 7350 .0 .0 100* 22.7 21.7 105 PARKER PEAK 9400 .0 .0 100* 31.9 27.5 116 SYLVAN LAKE 8420 .0 .0 100* -M 32.8 * THUMB DIVIDE 7980 .0 .0 100* 32.9 29.4 112 TWO OCEAN PLATEAU 9360 .0 .0 100* 44.3 43.2 103 WHISKEY CREEK 6800 .0 .0 100* 35.7 33.0 108 WHITE MILL 8700 .0 .0 100* 35.9 42.9 84 WOLVERINE 7650 .0 .0 100* 20.4 23.4 88 ----- ----- Basin wide percent of average * 106 WIND RIVER BURROUGHS CREEK 8750 .4 .0 * 28.9 26.3 110 COLD SPRINGS 9630 .0 .0 100* 28.2 20.3 140 DEER PARK 9700 .2 -M * 39.5 -M * HOBBS PARK 10100 .0 .0 100* 33.4 25.4 132 LITTLE WARM 9620 .2 .0 * 29.8 23.7 126 SOUTH PASS 9040 -M .0 * -M 28.4 * ST. LAWRENCE ALT 8620 .2 .0 * 24.5 18.8 132 TOGWOTEE PASS 9580 .0 .0 100* 40.4 39.5 103 TOWNSEND CREEK 8700 .2 .0 * 30.2 22.7 134 ----- ----- Basin wide percent of average * 123 BIGHORN BASIN BALD MTN. 9375 .0 .0 100* 30.5 29.9 103 BEAR TRAP MEADOW 7900 .0 .0 100* -M 18.0 * BLACKWATER 9780 .0 .0 100* 37.0 31.7 118 BONE SPRINGS DIV 9350 -M .0 * 30.8 28.0 111 EVENING STAR 9200 .0 .0 100* 48.2 38.5 125 GRAVE SPRINGS 8550 .2 .0 * 22.7 21.2 108 KIRWIN 9550 .0 .0 100* 27.0 22.3 122 MARQUETTE 8760 .0 .0 100* 27.4 22.5 122 MIDDLE POWDER 7760 .2 .0 * 28.9 23.0 126 OWL CREEK 8975 .0 .0 100* 21.2 14.9 143 POWDER RIVER PASS 9480 .0 .0 100* 27.8 22.8 123 SHELL CREEK 9580 .0 .0 100* 27.5 25.3 109 SYLVAN LAKE 8420 .0 .0 100* -M 32.8 * SYLVAN ROAD 8120 .0 .0 100* 27.9 28.0 100 TIMBER CREEK 7950 .2 .0 * 21.2 18.0 118 YOUNTS PEAK 8350 .0 .0 100* 29.3 27.5 107 ----- ----- Basin wide percent of average * 116 SHOSHONE RIVER BLACKWATER 9780 .0 .0 100* 37.0 31.7 118 EVENING STAR 9200 .0 .0 100* 48.2 38.5 125 KIRWIN 9550 .0 .0 100* 27.0 22.3 122 MARQUETTE 8760 .0 .0 100* 27.4 22.5 122 SYLVAN LAKE 8420 .0 .0 100* -M 32.8 * SYLVAN ROAD 8120 .0 .0 100* 27.9 28.0 100 YOUNTS PEAK 8350 .0 .0 100* 29.3 27.5 107 ----- ----- Basin wide percent of average * 116 POWDER-TONGUE BEAR TRAP MEADOW 7900 .0 .0 100* -M 18.0 * BIG GOOSE 7990 .0 -M * 23.0 -M * BONE SPRINGS DIV 9350 -M .0 * 30.8 28.0 111 BURGESS JUNCTION 7880 .2 .0 * 22.4 22.5 100 CLOUD PEAK RESERVOIR 9860 .0 .0 100* 30.0 26.9 112 DOME LAKE 8880 .0 .0 100* 21.8 24.8 88 GRAVE SPRINGS 8550 .2 .0 * 22.7 21.2 108 HANSEN SAWMILL 8760 .3 .0 * 20.9 17.9 117 MIDDLE POWDER 7760 .2 .0 * 28.9 23.0 126 POWDER RIVER PASS 9480 .0 .0 100* 27.8 22.8 123 SUCKER CREEK 8880 .7 .0 * 27.9 25.9 108 TIE CREEK 6870 .2 -M * 24.8 21.5 115 ----- ----- Basin wide percent of average * 111 BELLE FOURCHE BLIND PARK 6890 .2 .0 * 30.5 25.0 122 NORTH RAPID CREEK 6130 .0 -M * 28.5 -M * WARREN PEAK 6520 .0 .0 100* 29.3 19.2 153 ----- ----- Basin wide percent of average * 136 UPPER N. PLATTE RIVER COLUMBINE 9400 .2 .0 * 34.8 34.5 101 DIVIDE PEAK 8800 .0 .0 100* 38.8 34.0 114 ELK RIVER 8700 .0 .0 100* 34.9 28.2 124 JOE WRIGHT 10120 .0 .0 100* 41.8 41.2 102 NORTH FRENCH CREEK 10100 .0 .0 100* 42.5 36.8 116 OLD BATTLE 10000 .0 .0 100* 55.5 44.2 126 SOUTH BRUSH CREEK 8400 5.5 .0 * 41.5 28.0 149 TOWER 10500 .2 .0 * 57.5 54.3 106 WEBBER SPRINGS 9200 .0 .0 100* 41.2 37.9 109 WILLOW CREEK PASS 9540 .0 .0 100* 23.7 22.8 104 ----- ----- Basin wide percent of average * 114 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 2.9 .0 * 38.0 31.2 123 CASPER MTN. 7900 .2 .0 * 28.0 27.5 103 DEADMAN HILL 10220 .0 .0 100* 29.5 29.5 100 DEER PARK 9700 .2 -M * 39.5 -M * LAPRELE CREEK 8320 .3 .0 * 27.9 22.8 123 RENO HILL 8400 .0 .0 100* 31.5 28.9 110 ROACH 9700 .0 .0 100* 32.5 34.8 94 SAND LAKE 10080 .0 .0 100* 46.5 32.5 144 SOUTH PASS 9040 -M .0 * -M 28.4 * WINDY PEAK 7840 .0 .0 100* 24.8 20.3 123 ----- ----- Basin wide percent of average * 114 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100* 26.5 23.3 115 DIVIDE PEAK 8800 .0 .0 100* 38.8 34.0 114 OLD BATTLE 10000 .0 .0 100* 55.5 44.2 126 SANDSTONE RS 8150 .0 .0 100* 30.9 29.3 106 WHISKEY PARK 8950 .0 .0 100* 44.0 42.0 106 ----- ----- Basin wide percent of average * 114 UPPER GREEN RIVER BIG SANDY OPENING 9100 .0 .0 100* 24.0 23.9 101 BLIND BULL SUM 8650 .0 .0 100* 33.3 32.5 103 EAST RIM DIVIDE 7930 .0 .0 100* 21.9 22.3 99 ELKHART PARK G.S. 9400 .3 .0 * 25.3 23.5 108 GROS VENTRE SUMMIT 8775 .0 .0 100* 24.2 23.4 104 KENDALL R.S. 7740 .0 .0 100* 24.5 22.8 108 LOOMIS PARK 8240 .0 .0 100* 29.0 27.7 106 NEW FORK LAKE 8340 .0 .0 100* 21.2 21.3 100 SNIDER BASIN 8250 .0 .0 100* 27.0 22.3 122 SPRING CREEK DIVIDE 9000 .0 .0 100* 41.0 37.5 110 TRIPLE PEAK 8500 .0 .0 100* 43.7 43.5 101 ----- ----- Basin wide percent of average * 105 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100* 22.0 19.7 112 HEWINTA 9500 .0 .0 100* 24.8 23.3 107 HICKERSON PARK 9150 .4 .0 * 19.9 19.5 103 HOLE-IN-ROCK 9150 .0 .0 100* 20.5 19.5 106 INDIAN CREEK 9425 .0 .0 100* 39.5 36.2 110 KELLEY R.S. 8180 .0 .0 100* 29.2 27.5 106 STEEL CREEK PARK 10100 .0 .0 100* 30.5 26.8 114 ----- ----- Basin wide percent of average * 109 UPPER BEAR RIVER BUG LAKE 7950 .0 .0 100* -M 27.4 * HAYDEN FORK 9400 .0 .0 100* 34.0 30.5 112 KELLEY R.S. 8180 .0 .0 100* 29.2 27.5 106 LILY LAKE 9050 .2 .0 * 30.2 25.0 121 MONTE CRISTO 8960 .0 .0 100* 43.2 37.2 117 SALT RIVER SUMMIT 7600 .0 .0 100* 28.0 24.9 113 TRIAL LAKE 9960 .0 .0 100* 36.9 36.0 103 ----- ----- Basin wide percent of average * 112 ----------------------------------------------------------------------------- -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.