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 THURSDAY: JULY 16 , 2009 ----------------------------------------------------------------------------- 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 30.7 29.6 104 COTTONWOOD CREEK 7670 .0 .0 100 47.7 38.4 124 GRAND TARGHEE 9260 .0 -M * 50.7 -M * GRANITE CREEK 6770 -M .0 * 31.4 27.2 115 GRASSY LAKE 7265 .1 .0 47.7 48.8 98 GROS VENTRE SUMMIT 8750 .0 .0 100 24.4 20.4 120 GUNSIGHT PASS 9820 -M -M * 28.7 -M * LEWIS LAKE DIVIDE 7850 .0 .0 100 49.0 48.8 100 PHILLIPS BENCH 8200 .2 .0 42.8 39.5 108 SALT RIVER SUMMIT 7760 .0 .0 100 27.6 26.0 106 SNAKE RIVER STATION 6920 -M .0 * 34.9 31.4 111 SPRING CREEK DIVIDE 9000 .0 .0 100 -M 35.3 * THUMB DIVIDE 7980 -M .0 * 32.7 27.4 119 TOGWOTEE PASS 9580 .0 .0 100 44.1 35.7 124 TWO OCEAN PLATEAU 9240 .0 .0 100 45.9 40.1 114 WILLOW CREEK 8380 .3 .0 58.7 46.0 128 ----- ----- Basin wide percent of average * 113 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 .0 .2 0 34.3 30.8 111 BLACK BEAR 8170 .0 .0 100 51.1 54.3 94 CANYON 7870 .0 .0 100 26.9 23.5 114 FISHER CREEK 9100 .0 .0 100 50.8 51.8 98 MADISON PLATEAU 7750 .0 .0 100 36.9 37.7 98 NORTHEAST ENTRANCE 7350 .0 .0 100 23.2 21.2 109 PARKER PEAK 9400 .0 .7 0 30.2 26.9 112 SYLVAN LAKE 8420 .0 .0 100 37.1 33.0 112 THUMB DIVIDE 7980 -M .0 * 32.7 27.4 119 TWO OCEAN PLATEAU 9240 .0 .0 100 45.9 40.1 114 WHISKEY CREEK 6800 .1 .0 30.2 30.7 98 WHITE MILL 8700 .0 .0 100 38.1 39.6 96 WOLVERINE 7650 .1 .0 21.7 21.3 102 ----- ----- Basin wide percent of average 0 105 WIND RIVER BURROUGHS CREEK 8750 .0 .0 100 29.1 25.4 115 COLD SPRINGS 9630 .0 .0 100 20.4 20.0 102 DEER PARK 9700 .0 .0 100 31.1 34.0 91 HOBBS PARK 10100 .0 .0 100 26.4 24.1 110 LITTLE WARM 9370 .0 .0 100 26.3 23.0 114 SOUTH PASS 9040 .1 .0 27.0 28.6 94 ST. LAWRENCE ALT 8620 .0 .0 100 19.0 18.0 106 TOGWOTEE PASS 9580 .0 .0 100 44.1 35.7 124 TOWNSEND CREEK 8700 .0 .0 100 22.4 21.6 104 ----- ----- Basin wide percent of average * 107 BIGHORN BASIN BALD MTN. 9380 .0 .0 100 26.7 29.2 91 BEAR TRAP MEADOW 8200 .0 .0 100 17.7 17.7 100 BLACKWATER 9780 .0 .7 0 37.3 33.3 112 BONE SPRINGS DIV 9350 .0 .0 100 25.8 26.5 97 EVENING STAR 9200 .0 .9 0 44.9 39.0 115 GRAVE SPRINGS 8550 .0 .0 100 16.1 19.5 83 KIRWIN 9550 .0 .0 100 26.6 21.4 124 MARQUETTE 8760 .0 .0 100 18.0 22.0 82 MIDDLE POWDER 7760 .0 .0 100 18.6 22.5 83 OWL CREEK 8975 .0 .0 100 18.7 14.1 133 POWDER RIVER PASS 9480 .0 .0 100 25.9 23.2 112 SHELL CREEK 9580 .0 .0 100 26.3 24.8 106 SYLVAN LAKE 8420 .0 .0 100 37.1 33.0 112 SYLVAN ROAD 7120 .0 .0 100 30.7 26.5 116 TIMBER CREEK 7950 .0 .0 100 18.0 17.4 103 YOUNTS PEAK 8350 .0 .0 100 26.6 25.7 104 ----- ----- Basin wide percent of average 0 105 SHOSHONE RIVER BLACKWATER 9780 .0 .7 0 37.3 33.3 112 EVENING STAR 9200 .0 .9 0 44.9 39.0 115 KIRWIN 9550 .0 .0 100 26.6 21.4 124 MARQUETTE 8760 .0 .0 100 18.0 22.0 82 SYLVAN LAKE 8420 .0 .0 100 37.1 33.0 112 SYLVAN ROAD 7120 .0 .0 100 30.7 26.5 116 YOUNTS PEAK 8350 .0 .0 100 26.6 25.7 104 ----- ----- Basin wide percent of average 0 110 POWDER-TONGUE BEAR TRAP MEADOW 8200 .0 .0 100 17.7 17.7 100 BIG GOOSE 7990 .0 .0 100 20.2 18.9 107 BONE SPRINGS DIV 9350 .0 .0 100 25.8 26.5 97 BURGESS JUNCTION 7880 .0 .0 100 21.6 22.2 97 CLOUD PEAK RESERVOIR 9860 .0 .0 100 27.6 26.0 106 DOME LAKE 8880 .0 .0 100 24.6 24.1 102 GRAVE SPRINGS 8550 .0 .0 100 16.1 19.5 83 HANSEN SAWMILL 8360 .0 .0 100 18.1 17.8 102 MIDDLE POWDER 7760 .0 .0 100 18.6 22.5 83 POWDER RIVER PASS 9480 .0 .0 100 25.9 23.2 112 SUCKER CREEK 8880 .0 .0 100 28.2 25.5 111 TIE CREEK 6870 .0 .0 100 24.8 20.8 119 ----- ----- Basin wide percent of average * 102 BELLE FOURCHE BLIND PARK 6890 .0 .0 100 24.9 22.3 112 COLE CANYON 5910 .0 .0 100 22.6 17.7 128 NORTH RAPID CREEK 6130 .1 .0 19.9 19.8 101 ----- ----- Basin wide percent of average * 113 UPPER N. PLATTE RIVER COLUMBINE 9160 .0 .0 100 37.3 34.3 109 DIVIDE PEAK 8880 -M .0 * -M 29.6 * ELK RIVER 8700 .2 .0 31.5 28.2 112 JOE WRIGHT 10120 .1 .0 41.8 38.3 109 NORTH FRENCH CREEK 10130 -M .0 * -M 37.7 * OLD BATTLE 10000 .0 .0 100 53.3 46.8 114 SAGE CREEK BASIN 7850 .0 .0 100 .0 17.1 0 SOUTH BRUSH CREEK 8440 .0 .0 100 26.3 26.5 99 TOWER 10500 .0 1.4 0 58.9 53.1 111 WEBBER SPRINGS 9250 .0 .0 100 41.1 37.0 111 WILLOW CREEK PASS 9540 .1 .0 22.4 21.8 103 ----- ----- Basin wide percent of average 0 103 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 -M .0 * 33.3 34.1 98 CASPER MTN. 7900 -M .0 * -M 26.8 * DEADMAN HILL 10220 -M .0 * 27.2 27.0 101 DEER PARK 9700 .0 .0 100 31.1 34.0 91 LAPRELE CREEK 8375 -M .0 * -M 22.7 * RENO HILL 8400 .0 .0 100 -M 27.2 * ROACH 9700 .0 .0 100 30.7 29.0 106 SAND LAKE 10050 .0 .0 100 43.8 37.4 117 SOUTH PASS 9040 .1 .0 27.0 28.6 94 WINDY PEAK 7900 .3 .0 20.3 19.8 103 ----- ----- Basin wide percent of average * 102 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100 28.1 22.6 124 DIVIDE PEAK 8880 -M .0 * -M 29.6 * OLD BATTLE 10000 .0 .0 100 53.3 46.8 114 SANDSTONE RS 8150 -M .0 * 30.6 26.9 114 WHISKEY PARK 8950 .0 .0 100 47.0 40.6 116 ----- ----- Basin wide percent of average * 116 UPPER GREEN RIVER BIG SANDY OPENING 9080 .0 .0 100 -M 21.0 * BLIND BULL SUM 8650 .0 .0 100 32.1 30.4 106 EAST RIM DIVIDE 7930 .0 .0 100 -M 17.9 * ELKHART PARK G.S. 9400 -M .0 * -M 21.6 * GROS VENTRE SUMMIT 8750 .0 .0 100 24.4 20.4 120 GUNSIGHT PASS 9820 -M -M * 28.7 -M * KENDALL R.S. 7740 .0 .0 100 -M 20.7 * LOOMIS PARK 8240 -M .0 * -M 24.5 * NEW FORK LAKE 8340 -M .0 * -M 18.2 * SNIDER BASIN 8060 .0 .0 100 -M 22.0 * SPRING CREEK DIVIDE 9000 .0 .0 100 -M 35.3 * TRIPLE PEAK 8500 1.7 .0 -M 34.5 * ----- ----- Basin wide percent of average * 111* LOWER GREEN RIVER HAMS FORK 7840 .1 .0 -M 18.9 * HEWINTA 9519 .0 .0 100 21.6 22.8 95 HICKERSON PARK 9145 .0 .0 100 20.6 14.8 139 HOLE-IN-ROCK 9150 .0 .0 100 18.0 14.6 123 INDIAN CREEK 9425 1.4 .0 -M 34.6 * KELLEY R.S. 8180 .0 .0 100 -M 28.2 * STEEL CREEK PARK 10200 .0 .0 100 25.9 25.7 101 ----- ----- Basin wide percent of average * 111 UPPER BEAR RIVER BUG LAKE 7950 -M .0 * 26.9 26.9 100 HAYDEN FORK 9212 .0 .0 100 32.7 30.8 106 KELLEY R.S. 8180 .0 .0 100 -M 28.2 * LILY LAKE 9156 .0 .0 100 27.0 26.2 103 MONTE CRISTO 8960 -M .0 * 38.5 36.1 107 SALT RIVER SUMMIT 7760 .0 .0 100 27.6 26.0 106 TRIAL LAKE 9992 .0 .0 100 37.4 36.0 104 ----- ----- Basin wide percent of average * 104 ----------------------------------------------------------------------------- -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.