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: AUGUST 5 , 2008 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .1 .0 35.3 30.5 116 COTTONWOOD CREEK 7670 .0 .0 100 -M 39.3 * GRAND TARGHEE 9260 .0 -M * 49.1 -M * GRANITE CREEK 6770 .0 .0 100 32.3 28.2 115 GRASSY LAKE 7265 .0 .0 100 57.5 49.9 115 GROS VENTRE SUMMIT 8750 .0 .0 100 20.1 21.6 93 GUNSIGHT PASS 9820 .3 -M * 21.4 -M * LEWIS LAKE DIVIDE 7850 .0 .0 100 49.1 49.9 98 PHILLIPS BENCH 8200 .0 .0 100 45.4 40.4 112 SALT RIVER SUMMIT 7760 .0 .0 100 22.1 26.8 82 SNAKE RIVER STATION 6920 .0 .0 100 36.8 32.4 114 SPRING CREEK DIVIDE 9000 -M .0 * 32.2 36.2 89 THUMB DIVIDE 7980 .1 .0 29.7 28.1 106 TOGWOTEE PASS 9580 .0 .0 100 41.6 37.1 112 TWO OCEAN PLATEAU 9240 .1 .0 45.1 41.4 109 WILLOW CREEK 8380 .0 .0 100 53.6 47.4 113 ----- ----- Basin wide percent of average * 107 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 .0 .0 100 34.9 32.1 109 BLACK BEAR 8170 .0 .0 100 57.9 55.6 104 CANYON 7870 .0 .0 100 28.9 24.6 117 FISHER CREEK 9100 .0 .0 100 53.8 53.5 101 MADISON PLATEAU 7750 .1 .0 45.1 38.7 117 NORTHEAST ENTRANCE 7350 -M .0 * 22.5 22.5 100 PARKER PEAK 9400 .1 .0 40.7 28.0 145 SYLVAN LAKE 8420 .0 .0 100 40.8 34.3 119 THUMB DIVIDE 7980 .1 .0 29.7 28.1 106 TWO OCEAN PLATEAU 9240 .1 .0 45.1 41.4 109 WHISKEY CREEK 6800 .0 .0 100 -M 31.7 * WHITE MILL 8700 .1 .0 39.3 41.2 95 WOLVERINE 7650 .0 .0 100 23.0 22.5 102 ----- ----- Basin wide percent of average * 109 WIND RIVER BURROUGHS CREEK 8750 .0 .0 100 26.9 26.5 102 COLD SPRINGS 9630 .0 .0 100 18.5 21.0 88 DEER PARK 9700 .0 .0 100 31.4 35.0 90 HOBBS PARK 10100 .0 .0 100 25.9 25.3 102 LITTLE WARM 9370 .0 .0 100 23.4 24.2 97 SOUTH PASS 9040 .0 .0 100 27.9 29.5 95 ST. LAWRENCE ALT 8620 .0 .0 100 17.3 19.1 91 TOGWOTEE PASS 9580 .0 .0 100 41.6 37.1 112 TOWNSEND CREEK 8700 .0 .0 100 22.6 22.6 100 ----- ----- Basin wide percent of average * 98 BIGHORN BASIN BALD MTN. 9380 .0 .0 100 29.4 30.6 96 BEAR TRAP MEADOW 8200 .0 .0 100 22.7 18.6 122 BLACKWATER 9780 .0 .0 100 38.6 34.8 111 BONE SPRINGS DIV 9350 .0 .0 100 30.7 28.0 110 EVENING STAR 9200 .0 .0 100 51.6 40.6 127 GRAVE SPRINGS 8550 .0 .0 100 19.9 20.8 96 KIRWIN 9550 .0 .0 100 24.2 23.3 104 MARQUETTE 8760 .0 .0 100 23.3 23.5 99 MIDDLE POWDER 7760 .1 .0 20.5 23.5 87 OWL CREEK 8975 .0 .0 100 14.9 15.4 97 POWDER RIVER PASS 9480 .0 .0 100 28.2 24.4 116 SHELL CREEK 9580 .0 .0 100 28.5 26.0 110 SYLVAN LAKE 8420 .0 .0 100 40.8 34.3 119 SYLVAN ROAD 7120 .0 .0 100 31.6 27.5 115 TIMBER CREEK 7950 .1 .0 20.5 18.6 110 YOUNTS PEAK 8350 .0 .0 100 26.2 27.2 96 ----- ----- Basin wide percent of average * 108 SHOSHONE RIVER BLACKWATER 9780 .0 .0 100 38.6 34.8 111 EVENING STAR 9200 .0 .0 100 51.6 40.6 127 KIRWIN 9550 .0 .0 100 24.2 23.3 104 MARQUETTE 8760 .0 .0 100 23.3 23.5 99 SYLVAN LAKE 8420 .0 .0 100 40.8 34.3 119 SYLVAN ROAD 7120 .0 .0 100 31.6 27.5 115 YOUNTS PEAK 8350 .0 .0 100 26.2 27.2 96 ----- ----- Basin wide percent of average * 112 POWDER-TONGUE BEAR TRAP MEADOW 8200 .0 .0 100 22.7 18.6 122 BIG GOOSE 7990 .0 .0 100 24.4 19.8 123 BONE SPRINGS DIV 9350 .0 .0 100 30.7 28.0 110 BURGESS JUNCTION 7880 .0 .0 100 27.9 23.7 118 CLOUD PEAK RESERVOIR 9860 .0 .0 100 33.3 27.4 122 DOME LAKE 8880 .0 .0 100 29.4 25.4 116 GRAVE SPRINGS 8550 .0 .0 100 19.9 20.8 96 HANSEN SAWMILL 8360 .0 .0 100 25.1 19.2 131 MIDDLE POWDER 7760 .1 .0 20.5 23.5 87 POWDER RIVER PASS 9480 .0 .0 100 28.2 24.4 116 SUCKER CREEK 8880 .0 .0 100 32.4 26.8 121 TIE CREEK 6870 .0 .0 100 24.9 21.7 115 ----- ----- Basin wide percent of average * 114 BELLE FOURCHE BLIND PARK 6890 .0 .0 100 26.8 24.2 111 COLE CANYON 5910 .0 .0 100 26.0 19.6 133 NORTH RAPID CREEK 6130 .0 .0 100 32.6 22.5 145 ----- ----- Basin wide percent of average * 129 UPPER N. PLATTE RIVER COLUMBINE 9160 .0 .0 100 37.8 35.4 107 DIVIDE PEAK 8880 .0 .0 100 32.1 30.5 105 ELK RIVER 8700 .2 .0 31.0 29.3 106 JOE WRIGHT 10120 .1 .0 41.6 40.1 104 NORTH FRENCH CREEK 10130 .0 .0 100 41.7 39.1 107 OLD BATTLE 10000 .0 .0 100 52.3 47.9 109 SAGE CREEK BASIN 7850 .0 .0 100 23.0 17.7 130 SOUTH BRUSH CREEK 8440 .0 .0 100 24.6 27.6 89 TOWER 10500 -M .0 * 54.4 54.4 100 WEBBER SPRINGS 9250 .0 .0 100 40.5 38.1 106 WILLOW CREEK PASS 9540 .3 .0 24.5 23.2 106 ----- ----- Basin wide percent of average * 105 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .0 .0 100 32.0 35.4 90 CASPER MTN. 7900 .0 .0 100 30.8 27.8 111 DEADMAN HILL 10220 .3 .0 -M 28.3 * DEER PARK 9700 .0 .0 100 31.4 35.0 90 LAPRELE CREEK 8375 .0 .0 100 22.7 24.3 93 RENO HILL 8400 .0 .0 100 33.2 28.4 117 ROACH 9700 .0 .0 100 32.4 30.3 107 SAND LAKE 10050 .0 .0 100 43.5 38.7 112 SOUTH PASS 9040 .0 .0 100 27.9 29.5 95 WINDY PEAK 7900 .4 .0 20.1 21.2 95 ----- ----- Basin wide percent of average * 101 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100 23.0 23.3 99 DIVIDE PEAK 8880 .0 .0 100 32.1 30.5 105 OLD BATTLE 10000 .0 .0 100 52.3 47.9 109 SANDSTONE RS 8150 -M .0 * 28.8 27.8 104 WHISKEY PARK 8950 .0 .0 100 46.7 41.8 112 ----- ----- Basin wide percent of average * 107 UPPER GREEN RIVER BIG SANDY OPENING 9080 .0 .0 100 20.1 21.9 92 BLIND BULL SUM 8650 .0 .0 100 25.2 31.3 81 EAST RIM DIVIDE 7930 .0 .0 100 15.7 18.7 84 ELKHART PARK G.S. 9400 .1 .0 17.5 22.6 77 GROS VENTRE SUMMIT 8750 .0 .0 100 20.1 21.6 93 GUNSIGHT PASS 9820 .3 -M * 21.4 -M * KENDALL R.S. 7740 .0 .0 100 18.6 21.5 87 LOOMIS PARK 8240 .0 .0 100 23.6 25.5 93 NEW FORK LAKE 8340 .2 .0 14.6 19.1 76 SNIDER BASIN 8060 .0 .0 100 19.7 22.7 87 SPRING CREEK DIVIDE 9000 -M .0 * 32.2 36.2 89 TRIPLE PEAK 8500 -M .0 * 39.4 35.4 111 ----- ----- Basin wide percent of average * 89 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100 15.7 19.7 80 HEWINTA 9519 .0 .0 100 27.3 24.2 113 HICKERSON PARK 9145 .0 .0 100 18.0 16.0 112 HOLE-IN-ROCK 9150 .0 .0 100 16.7 15.8 106 INDIAN CREEK 9425 .0 .0 100 31.2 35.4 88 KELLEY R.S. 8180 .1 .0 24.5 28.9 85 STEEL CREEK PARK 10200 -M .0 * 29.1 27.2 107 ----- ----- Basin wide percent of average * 97 UPPER BEAR RIVER BUG LAKE 7950 .0 .0 100 23.6 27.6 86 HAYDEN FORK 9212 .0 .0 100 31.5 31.9 99 KELLEY R.S. 8180 .1 .0 24.5 28.9 85 LILY LAKE 9156 .0 .0 100 25.5 27.3 93 MONTE CRISTO 8960 .0 .0 100 33.5 36.9 91 SALT RIVER SUMMIT 7760 .0 .0 100 22.1 26.8 82 TRIAL LAKE 9992 -M .0 * 32.4 37.4 87 ----- ----- 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.