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: OCTOBER 6 , 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 .8 .3 267 COTTONWOOD CREEK 7670 .0 .0 100 .6 .4 150 GRAND TARGHEE 9260 .6 -M * 1.2 -M * GRANITE CREEK 6770 .1 .0 .6 .3 200 GRASSY LAKE 7265 .1 .0 1.0 .5 200 GROS VENTRE SUMMIT 8750 .1 .2 50 .5 .3 167 GUNSIGHT PASS 9820 .2 -M * .3 -M * LEWIS LAKE DIVIDE 7850 .0 .0 100 1.1 .4 275 PHILLIPS BENCH 8200 .0 .0 100 .5 .3 167 SALT RIVER SUMMIT 7760 .0 .0 100 .3 .3 100 SNAKE RIVER STATION 6920 .3 .0 .4 .3 133 SPRING CREEK DIVIDE 9000 .0 .0 100 .3 .3 100 THUMB DIVIDE 7980 .3 .0 .9 .3 300 TOGWOTEE PASS 9580 .0 .3 0 .5 .4 125 TWO OCEAN PLATEAU 9240 .3 .4 75 .5 .4 125 WILLOW CREEK 8380 .1 .0 .9 .6 150 ----- ----- Basin wide percent of average 44 175 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 .1 .7 14 .2 .3 67 BLACK BEAR 8170 .2 .4 50 2.0 .4 500 CANYON 7870 .2 .1 200 .0 .2 0 FISHER CREEK 9100 .3 .5 60 .7 .4 175 MADISON PLATEAU 7750 .1 .3 33 1.1 .4 275 NORTHEAST ENTRANCE 7350 .0 .0 100 .3 .3 100 PARKER PEAK 9400 .1 .8 12 .4 .4 100 SYLVAN LAKE 8420 .1 .6 17 .9 .4 225 THUMB DIVIDE 7980 .3 .0 .9 .3 300 TWO OCEAN PLATEAU 9240 .3 .4 75 .5 .4 125 WHISKEY CREEK 6800 .0 .1 0 .5 .3 167 WHITE MILL 8700 .2 .3 67 .5 .4 125 WOLVERINE 7650 .1 .1 100 .0 .3 0 ----- ----- Basin wide percent of average 40 178 WIND RIVER BURROUGHS CREEK 8750 .1 .2 50 .0 .3 0 COLD SPRINGS 9630 .0 .3 0 .3 .3 100 DEER PARK 9700 .0 .6 0 .7 .3 233 HOBBS PARK 10100 .1 .6 17 .2 .3 67 LITTLE WARM 9370 .0 .2 0 .4 .3 133 SOUTH PASS 9040 .0 .4 0 .8 .3 267 ST. LAWRENCE ALT 8620 .1 .2 50 .1 .3 33 TOGWOTEE PASS 9580 .0 .3 0 .5 .4 125 TOWNSEND CREEK 8700 .1 .2 50 .2 .3 67 ----- ----- Basin wide percent of average 13 114 BIGHORN BASIN BALD MTN. 9380 .2 .9 22 .5 .4 125 BEAR TRAP MEADOW 8200 .3 .2 150 .5 .3 167 BLACKWATER 9780 .0 .9 0 .4 .4 100 BONE SPRINGS DIV 9350 .0 .7 0 .5 .4 125 EVENING STAR 9200 .3 .7 43 .5 .4 125 GRAVE SPRINGS 8550 .0 .3 0 .4 .4 100 KIRWIN 9550 .1 .5 20 .1 .3 33 MARQUETTE 8760 .0 .6 0 .0 .4 0 MIDDLE POWDER 7760 .3 .3 100 .7 .4 175 OWL CREEK 8975 .0 .3 0 .1 .2 50 POWDER RIVER PASS 9480 .3 .4 75 .7 .4 175 SHELL CREEK 9580 .4 1.0 40 1.2 .4 300 SYLVAN LAKE 8420 .1 .6 17 .9 .4 225 SYLVAN ROAD 7120 .2 .0 .5 .3 167 TIMBER CREEK 7950 .0 .2 0 .3 .3 100 YOUNTS PEAK 8350 .0 .2 0 .2 .3 67 ----- ----- Basin wide percent of average 26 132 SHOSHONE RIVER BLACKWATER 9780 .0 .9 0 .4 .4 100 EVENING STAR 9200 .3 .7 43 .5 .4 125 KIRWIN 9550 .1 .5 20 .1 .3 33 MARQUETTE 8760 .0 .6 0 .0 .4 0 SYLVAN LAKE 8420 .1 .6 17 .9 .4 225 SYLVAN ROAD 7120 .2 .0 .5 .3 167 YOUNTS PEAK 8350 .0 .2 0 .2 .3 67 ----- ----- Basin wide percent of average 14 104 POWDER-TONGUE BEAR TRAP MEADOW 8200 .3 .2 150 .5 .3 167 BIG GOOSE 7990 .0 .1 0 .3 .4 75 BONE SPRINGS DIV 9350 .0 .7 0 .5 .4 125 BURGESS JUNCTION 7880 .0 .4 0 .5 .4 125 CLOUD PEAK RESERVOIR 9860 .1 .2 50 .2 .4 50 DOME LAKE 8880 .0 .4 0 .2 .4 50 GRAVE SPRINGS 8550 .0 .3 0 .4 .4 100 HANSEN SAWMILL 8360 .0 .1 0 .0 .3 0 MIDDLE POWDER 7760 .3 .3 100 .7 .4 175 POWDER RIVER PASS 9480 .3 .4 75 .7 .4 175 SUCKER CREEK 8880 .1 .3 33 .5 .4 125 TIE CREEK 6870 .0 .1 0 .4 .5 80 ----- ----- Basin wide percent of average 31 104 BELLE FOURCHE BLIND PARK 6890 .1 .4 25 .0 .4 0 COLE CANYON 5910 .3 .0 .0 .3 0 NORTH RAPID CREEK 6130 .0 .0 100 .1 .4 25 ----- ----- Basin wide percent of average 25 9 UPPER N. PLATTE RIVER COLUMBINE 9160 .1 .0 .1 .3 33 DIVIDE PEAK 8880 .0 .3 0 -M .4 * ELK RIVER 8700 .1 .0 .7 .3 233 JOE WRIGHT 10120 .0 .3 0 .4 .5 80 NORTH FRENCH CREEK 10130 .0 .5 0 .2 .4 50 OLD BATTLE 10000 .1 .5 20 .8 .5 160 SAGE CREEK BASIN 7850 .0 .0 100 .3 .2 150 SOUTH BRUSH CREEK 8440 .0 .0 100 .0 .4 0 TOWER 10500 .1 .3 33 .7 .5 140 WEBBER SPRINGS 9250 .0 .2 0 .5 .4 125 WILLOW CREEK PASS 9540 .1 .0 .3 .3 100 ----- ----- Basin wide percent of average 10 105 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .0 .4 0 .0 .3 0 CASPER MTN. 7900 .0 .2 0 .0 .3 0 DEADMAN HILL 10220 .0 .4 0 .1 .4 25 DEER PARK 9700 .0 .6 0 .7 .3 233 LAPRELE CREEK 8375 .0 .1 0 .0 .3 0 RENO HILL 8400 .0 .3 0 .0 .3 0 ROACH 9700 .1 .1 100 .2 .4 50 SAND LAKE 10050 .0 .6 0 .0 .4 0 SOUTH PASS 9040 .0 .4 0 .8 .3 267 WINDY PEAK 7900 .0 .0 100 .0 .3 0 ----- ----- Basin wide percent of average 3 55 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100 .4 .2 200 DIVIDE PEAK 8880 .0 .3 0 -M .4 * OLD BATTLE 10000 .1 .5 20 .8 .5 160 SANDSTONE RS 8150 .0 .0 100 .4 .3 133 WHISKEY PARK 8950 .0 .2 0 .5 .4 125 ----- ----- Basin wide percent of average 10 150 UPPER GREEN RIVER BIG SANDY OPENING 9080 .1 .1 100 .6 .3 200 BLIND BULL SUM 8650 .0 .0 100 .5 .3 167 EAST RIM DIVIDE 7930 .0 .0 100 .4 .2 200 ELKHART PARK G.S. 9400 .0 .0 100 .7 .3 233 GROS VENTRE SUMMIT 8750 .1 .2 50 .5 .3 167 GUNSIGHT PASS 9820 .2 -M * .3 -M * KENDALL R.S. 7740 .1 .0 .4 .2 200 LOOMIS PARK 8240 .0 .0 100 .7 .3 233 NEW FORK LAKE 8340 .2 .0 .5 .3 167 SNIDER BASIN 8060 .3 .0 .2 .2 100 SPRING CREEK DIVIDE 9000 .0 .0 100 .3 .3 100 TRIPLE PEAK 8500 .2 .0 .3 .3 100 ----- ----- Basin wide percent of average 67 170 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100 .2 .2 100 HEWINTA 9519 .0 .1 0 .1 .3 33 HICKERSON PARK 9145 .0 .0 100 .3 .3 100 HOLE-IN-ROCK 9150 .0 .0 100 .2 .3 67 INDIAN CREEK 9425 .0 .1 0 .2 .3 67 KELLEY R.S. 8180 .2 .0 .6 .3 200 STEEL CREEK PARK 10200 .2 .4 50 .4 .3 133 ----- ----- Basin wide percent of average 33 100 UPPER BEAR RIVER BUG LAKE 7950 .1 .3 33 .7 .3 233 HAYDEN FORK 9212 .1 .2 50 .8 .4 200 KELLEY R.S. 8180 .2 .0 .6 .3 200 LILY LAKE 9156 .2 .2 100 .8 .3 267 MONTE CRISTO 8960 .1 .3 33 1.0 .4 250 SALT RIVER SUMMIT 7760 .0 .0 100 .3 .3 100 TRIAL LAKE 9992 .3 .5 60 1.0 .4 250 ----- ----- Basin wide percent of average 53 217 ----------------------------------------------------------------------------- -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.