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 27 , 2008 ----------------------------------------------------------------------------- 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 7670 .0 .0 100 -M 40.5 * GRAND TARGHEE 9260 .0 -M * 49.7 -M * GRANITE CREEK 6770 .0 .0 100 32.5 29.0 112 GRASSY LAKE 7265 .0 .0 100 57.6 51.0 113 GROS VENTRE SUMMIT 8750 .0 .0 100 20.4 22.7 90 GUNSIGHT PASS 9820 .0 -M * 21.7 -M * LEWIS LAKE DIVIDE 7850 -M .0 * 49.2 51.0 96 PHILLIPS BENCH 8200 .0 .0 100 46.0 41.5 111 SALT RIVER SUMMIT 7760 -M .0 * -M 27.7 * SNAKE RIVER STATION 6920 .0 .0 100 37.2 33.3 112 SPRING CREEK DIVIDE 9000 -M .0 * -M 37.2 * THUMB DIVIDE 7980 .2 .0 30.1 28.9 104 TOGWOTEE PASS 9580 .0 .0 100 41.8 38.3 109 TWO OCEAN PLATEAU 9240 .1 .0 45.2 42.6 106 WILLOW CREEK 8380 .0 .0 100 54.7 48.7 112 ----- ----- Basin wide percent of average * 108 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 .0 .0 100 35.0 33.1 106 BLACK BEAR 8170 .0 .0 100 58.1 56.9 102 CANYON 7870 .0 .0 100 28.8 25.7 112 FISHER CREEK 9100 .0 .0 100 55.0 55.1 100 MADISON PLATEAU 7750 .0 .0 100 45.0 39.8 113 NORTHEAST ENTRANCE 7350 .0 .0 100 22.7 23.8 95 PARKER PEAK 9400 .0 .0 100 40.9 29.0 141 SYLVAN LAKE 8420 .0 .0 100 40.9 35.2 116 THUMB DIVIDE 7980 .2 .0 30.1 28.9 104 TWO OCEAN PLATEAU 9240 .1 .0 45.2 42.6 106 WHISKEY CREEK 6800 .0 .0 100 36.1 32.7 110 WHITE MILL 8700 .0 .0 100 39.8 42.7 93 WOLVERINE 7650 .0 .0 100 23.4 23.6 99 ----- ----- Basin wide percent of average * 107 WIND RIVER BURROUGHS CREEK 8750 .0 .0 100 27.0 27.5 98 COLD SPRINGS 9630 .0 .0 100 19.4 21.8 89 DEER PARK 9700 .0 .0 100 32.4 35.9 90 HOBBS PARK 10100 .0 .0 100 26.7 26.2 102 LITTLE WARM 9370 .0 .0 100 24.0 25.1 96 SOUTH PASS 9040 .0 .0 100 29.1 30.2 96 ST. LAWRENCE ALT 8620 .0 .0 100 18.2 19.8 92 TOGWOTEE PASS 9580 .0 .0 100 41.8 38.3 109 TOWNSEND CREEK 8700 .0 .0 100 23.7 23.3 102 ----- ----- Basin wide percent of average * 98 BIGHORN BASIN BALD MTN. 9380 .1 .0 29.7 31.4 95 BEAR TRAP MEADOW 8200 .0 .0 100 23.1 19.3 120 BLACKWATER 9780 .0 .0 100 38.7 35.9 108 BONE SPRINGS DIV 9350 .0 .0 100 30.7 29.2 105 EVENING STAR 9200 -M .0 * -M 41.7 * GRAVE SPRINGS 8550 .0 .0 100 20.9 21.2 99 KIRWIN 9550 .0 .0 100 24.9 24.5 102 MARQUETTE 8760 .0 .0 100 23.8 24.6 97 MIDDLE POWDER 7760 .1 .0 21.9 24.1 91 OWL CREEK 8975 .0 .0 100 15.2 16.1 94 POWDER RIVER PASS 9480 -M .0 * -M 25.2 * SHELL CREEK 9580 .0 .0 100 28.6 26.9 106 SYLVAN LAKE 8420 .0 .0 100 40.9 35.2 116 SYLVAN ROAD 7120 .1 .0 32.0 28.4 113 TIMBER CREEK 7950 .0 .0 100 21.6 19.7 110 YOUNTS PEAK 8350 .0 .0 100 26.6 28.6 93 ----- ----- Basin wide percent of average * 104 SHOSHONE RIVER BLACKWATER 9780 .0 .0 100 38.7 35.9 108 EVENING STAR 9200 -M .0 * -M 41.7 * KIRWIN 9550 .0 .0 100 24.9 24.5 102 MARQUETTE 8760 .0 .0 100 23.8 24.6 97 SYLVAN LAKE 8420 .0 .0 100 40.9 35.2 116 SYLVAN ROAD 7120 .1 .0 32.0 28.4 113 YOUNTS PEAK 8350 .0 .0 100 26.6 28.6 93 ----- ----- Basin wide percent of average * 105 POWDER-TONGUE BEAR TRAP MEADOW 8200 .0 .0 100 23.1 19.3 120 BIG GOOSE 7990 .0 .0 100 25.0 20.6 121 BONE SPRINGS DIV 9350 .0 .0 100 30.7 29.2 105 BURGESS JUNCTION 7880 .0 .0 100 28.4 24.4 116 CLOUD PEAK RESERVOIR 9860 .1 .0 34.0 28.5 119 DOME LAKE 8880 .0 .0 100 29.8 26.4 113 GRAVE SPRINGS 8550 .0 .0 100 20.9 21.2 99 HANSEN SAWMILL 8360 .0 .0 100 25.2 20.1 125 MIDDLE POWDER 7760 .1 .0 21.9 24.1 91 POWDER RIVER PASS 9480 -M .0 * -M 25.2 * SUCKER CREEK 8880 .0 .0 100 33.1 27.7 119 TIE CREEK 6870 .0 .0 100 25.9 22.8 114 ----- ----- Basin wide percent of average * 113 BELLE FOURCHE BLIND PARK 6890 .0 .0 100 28.5 25.3 113 COLE CANYON 5910 .3 .0 27.0 21.0 129 NORTH RAPID CREEK 6130 .0 .0 100 34.7 23.9 145 ----- ----- Basin wide percent of average * 128 UPPER N. PLATTE RIVER COLUMBINE 9160 .0 .0 100 38.9 36.3 107 DIVIDE PEAK 8880 .0 .0 100 34.1 31.4 109 ELK RIVER 8700 .3 .0 32.9 30.4 108 JOE WRIGHT 10120 .2 .0 43.5 41.9 104 NORTH FRENCH CREEK 10130 .0 .0 100 43.0 40.3 107 OLD BATTLE 10000 -M .0 * 53.5 49.0 109 SAGE CREEK BASIN 7850 .0 .0 100 24.4 18.2 134 SOUTH BRUSH CREEK 8440 .0 .0 100 25.2 28.7 88 TOWER 10500 .0 .0 100 55.6 55.6 100 WEBBER SPRINGS 9250 .0 .0 100 43.1 39.2 110 WILLOW CREEK PASS 9540 .3 .0 26.7 24.5 109 ----- ----- Basin wide percent of average * 106 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .0 .0 100 33.6 36.4 92 CASPER MTN. 7900 .0 .0 100 31.6 28.5 111 DEADMAN HILL 10220 .3 .0 30.8 29.5 104 DEER PARK 9700 .0 .0 100 32.4 35.9 90 LAPRELE CREEK 8375 -M .0 * 23.6 25.7 92 RENO HILL 8400 .0 .0 100 34.0 29.5 115 ROACH 9700 .0 .0 100 33.2 31.5 105 SAND LAKE 10050 .0 .0 100 44.7 39.7 113 SOUTH PASS 9040 .0 .0 100 29.1 30.2 96 WINDY PEAK 7900 .3 .0 21.9 22.2 99 ----- ----- Basin wide percent of average * 102 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100 23.7 23.9 99 DIVIDE PEAK 8880 .0 .0 100 34.1 31.4 109 OLD BATTLE 10000 -M .0 * 53.5 49.0 109 SANDSTONE RS 8150 -M .0 * 30.8 28.9 107 WHISKEY PARK 8950 .0 .0 100 47.7 42.7 112 ----- ----- Basin wide percent of average * 108 UPPER GREEN RIVER BIG SANDY OPENING 9080 .0 .0 100 20.1 22.9 88 BLIND BULL SUM 8650 .0 .0 100 25.7 32.4 79 EAST RIM DIVIDE 7930 .0 .0 100 16.0 19.6 82 ELKHART PARK G.S. 9400 .0 .0 100 18.1 23.8 76 GROS VENTRE SUMMIT 8750 .0 .0 100 20.4 22.7 90 GUNSIGHT PASS 9820 .0 -M * 21.7 -M * KENDALL R.S. 7740 .0 .0 100 18.9 22.3 85 LOOMIS PARK 8240 .0 .0 100 24.4 26.8 91 NEW FORK LAKE 8340 .1 .0 15.3 20.1 76 SNIDER BASIN 8060 .0 .0 100 19.9 23.4 85 SPRING CREEK DIVIDE 9000 -M .0 * -M 37.2 * TRIPLE PEAK 8500 -M .0 * 40.3 36.5 110 ----- ----- Basin wide percent of average * 87 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100 15.7 20.4 77 HEWINTA 9519 -M .0 * 28.0 25.4 110 HICKERSON PARK 9145 .0 .0 100 -M 17.5 * HOLE-IN-ROCK 9150 .0 .0 100 -M 17.4 * INDIAN CREEK 9425 .2 .0 31.4 36.3 87 KELLEY R.S. 8180 .0 .0 100 24.9 29.7 84 STEEL CREEK PARK 10200 .7 .0 30.1 28.5 106 ----- ----- Basin wide percent of average * 93 UPPER BEAR RIVER BUG LAKE 7950 .0 .0 100 24.1 28.4 85 HAYDEN FORK 9212 .0 .0 100 32.1 33.2 97 KELLEY R.S. 8180 .0 .0 100 24.9 29.7 84 LILY LAKE 9156 .0 .0 100 25.9 28.6 91 MONTE CRISTO 8960 .0 .0 100 33.7 37.8 89 SALT RIVER SUMMIT 7760 -M .0 * -M 27.7 * TRIAL LAKE 9992 -M .0 * 34.3 39.0 88 ----- ----- Basin wide percent of average * 89 ----------------------------------------------------------------------------- -M = Missing data * = Data may not provide a valid measure of conditions. Units = inches for the Current and Average Snow Water Equivalent and Total Precipitation values 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.