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: OCTOBER 3 , 2007 ----------------------------------------------------------------------------- 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 * .1 .1 100 COTTONWOOD CREEK 7600 .0 .0 100* .1 .2 50 GRANITE CREEK 6770 .1 .0 * .2 .1 200 GRASSY LAKE 7265 .2 .0 * .4 .2 200 GROS VENTRE SUMMIT 8750 .1 .1 100* .0 .1 0 LEWIS LAKE DIVIDE 7850 -M .0 * -M .2 * PHILLIPS BENCH 8200 .0 .0 100* .3 .2 150 SALT RIVER SUMMIT 7600 .0 .0 100* .0 .1 0 SNAKE RIVER STATION 6920 .1 .0 * .1 .1 100 SPRING CREEK DIVIDE 9000 .2 .0 * .1 .2 50 THUMB DIVIDE 7980 .1 .0 * .2 .1 200 TOGWOTEE PASS 9580 .0 .1 0* .2 .2 100 TWO OCEAN PLATEAU 9240 .2 .2 100* .2 .2 100 WILLOW CREEK 8450 .1 .1 100* .1 .2 50 ----- ----- Basin wide percent of average 80* 100 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 .3 .5 60* .3 .1 300 BLACK BEAR 8170 .5 .4 125* .7 .2 350 CANYON 8090 .0 .1 0* .2 .1 200 FISHER CREEK 9100 .2 .4 50* .2 .2 100 MADISON PLATEAU 7750 .4 .2 200* .6 .2 300 NORTHEAST ENTRANCE 7350 .0 .0 100* .1 .1 100 PARKER PEAK 9400 .0 .6 0* .0 .2 0 SYLVAN LAKE 8420 .0 .5 0* .2 .2 100 THUMB DIVIDE 7980 .1 .0 * .2 .1 200 TWO OCEAN PLATEAU 9240 .2 .2 100* .2 .2 100 WHISKEY CREEK 6800 .0 .1 0* .5 .1 500 WHITE MILL 8700 .1 .3 33* .1 .2 50 WOLVERINE 7650 .0 .0 100* .1 .1 100 ----- ----- Basin wide percent of average 52* 170 WIND RIVER BURROUGHS CREEK 8750 .0 .2 0* .0 .1 0 COLD SPRINGS 9630 .0 .2 0* .1 .1 100 DEER PARK 9700 .0 .4 0* .1 .2 50 HOBBS PARK 10100 .0 .4 0* .1 .1 100 LITTLE WARM 9370 .0 .2 0* .1 .1 100 SOUTH PASS 9040 .1 .1 100* .1 .1 100 ST. LAWRENCE ALT 8620 .0 .1 0* .1 .1 100 TOGWOTEE PASS 9580 .0 .1 0* .2 .2 100 TOWNSEND CREEK 8700 .0 .0 100* .1 .1 100 ----- ----- Basin wide percent of average 6* 82 BIGHORN BASIN BALD MTN. 9380 .0 .7 0* .1 .2 50 BEAR TRAP MEADOW 8200 .0 .1 0* .1 .1 100 BLACKWATER 9780 .1 .7 14* .1 .2 50 BONE SPRINGS DIV 9350 .0 .6 0* .1 .2 50 EVENING STAR 9200 .3 .5 60* .4 .2 200 GRAVE SPRINGS 8550 .0 .1 0* .2 .1 200 KIRWIN 9550 .0 .5 0* .1 .1 100 MARQUETTE 8760 .0 .5 0* .0 .2 0 MIDDLE POWDER 7760 .0 .3 0* .3 .2 150 OWL CREEK 8975 .0 .2 0* .1 .1 100 POWDER RIVER PASS 9480 .0 .3 0* .3 .1 300 SHELL CREEK 9580 .7 .8 87* .3 .1 300 SYLVAN LAKE 8420 .0 .5 0* .2 .2 100 SYLVAN ROAD 7120 .0 .0 100* .1 .1 100 TIMBER CREEK 7950 .0 .0 100* .1 .1 100 YOUNTS PEAK 8350 .0 .2 0* .1 .1 100 ----- ----- Basin wide percent of average 18* 113 SHOSHONE RIVER BLACKWATER 9780 .1 .7 14* .1 .2 50 EVENING STAR 9200 .3 .5 60* .4 .2 200 KIRWIN 9550 .0 .5 0* .1 .1 100 MARQUETTE 8760 .0 .5 0* .0 .2 0 SYLVAN LAKE 8420 .0 .5 0* .2 .2 100 SYLVAN ROAD 7120 .0 .0 100* .1 .1 100 YOUNTS PEAK 8350 .0 .2 0* .1 .1 100 ----- ----- Basin wide percent of average 14* 91 POWDER-TONGUE BEAR TRAP MEADOW 8200 .0 .1 0* .1 .1 100 BIG GOOSE 7990 .0 .0 100* .0 .1 0 BONE SPRINGS DIV 9350 .0 .6 0* .1 .2 50 BURGESS JUNCTION 7880 .0 .3 0* .1 .1 100 CLOUD PEAK RESERVOIR 9860 .0 .1 0* .0 .2 0 DOME LAKE 8880 .0 .4 0* .1 .2 50 GRAVE SPRINGS 8550 .0 .1 0* .2 .1 200 HANSEN SAWMILL 8360 .0 .1 0* .1 .1 100 MIDDLE POWDER 7760 .0 .3 0* .3 .2 150 POWDER RIVER PASS 9480 .0 .3 0* .3 .1 300 SUCKER CREEK 8880 .0 .2 0* .1 .2 50 TIE CREEK 6870 .0 .0 100* .1 .2 50 ----- ----- Basin wide percent of average 0* 83 BELLE FOURCHE BLIND PARK 6890 .0 .0 100* .1 .2 50 COLE CANYON 5910 .0 .0 100* .1 -M * NORTH RAPID CREEK 6130 .0 .0 100* .1 .2 50 ----- ----- Basin wide percent of average * 50 UPPER N. PLATTE RIVER COLUMBINE 9160 .0 .0 100* 1.2 .2 600 DIVIDE PEAK 8860 -M .2 * -M .2 * ELK RIVER 8700 .0 .0 100* .6 .1 600 JOE WRIGHT 10120 .4 .2 200* 1.3 .2 650 NORTH FRENCH CREEK 10130 .9 .3 300* .7 .2 350 OLD BATTLE 9920 .8 .3 267* .9 .2 450 SAGE CREEK BASIN 7850 .0 .0 100* .3 .1 300 SOUTH BRUSH CREEK 8440 .2 .0 * .6 .2 300 TOWER 10500 1.5 .2 750* 1.3 .3 433 WEBBER SPRINGS 9250 .1 .2 50* .7 .2 350 WILLOW CREEK PASS 9540 .3 .0 * .6 .1 600 ----- ----- Basin wide percent of average 308* 456 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 .1 .3 33* .5 .2 250 CASPER MTN. 7850 .0 .1 0* .2 .2 100 DEADMAN HILL 10220 .5 .3 167* .4 .2 200 DEER PARK 9700 .0 .4 0* .1 .2 50 LAPRELE CREEK 8375 .0 .0 100* .2 .1 200 RENO HILL 8500 .1 .1 100* .2 .2 100 ROACH 9700 .2 .0 * .6 .2 300 SAND LAKE 10050 .9 .5 180* .6 .2 300 SOUTH PASS 9040 .1 .1 100* .1 .1 100 WINDY PEAK 7900 .0 .0 100* .1 .1 100 ----- ----- Basin wide percent of average 94* 176 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 -M .0 * .4 .1 400 DIVIDE PEAK 8860 -M .2 * -M .2 * OLD BATTLE 9920 .8 .3 267* .9 .2 450 SANDSTONE RS 8150 .0 .0 100* .5 .2 250 WHISKEY PARK 8950 .0 .1 0* .7 .2 350 ----- ----- Basin wide percent of average 200* 357 UPPER GREEN RIVER BIG SANDY OPENING 9080 .1 .1 100* .0 .1 0 BLIND BULL SUM 8900 .0 .1 0* .1 .1 100 EAST RIM DIVIDE 7930 .0 .0 100* .1 .1 100 ELKHART PARK G.S. 9400 .0 .0 100* .3 .1 300 GROS VENTRE SUMMIT 8750 .1 .1 100* .0 .1 0 KENDALL R.S. 7740 .1 .0 * .1 .1 100 LOOMIS PARK 8240 .0 .0 100* .1 .1 100 NEW FORK LAKE 8340 .0 .0 100* .1 .1 100 SNIDER BASIN 8060 .3 .0 * .1 .1 100 SPRING CREEK DIVIDE 9000 .2 .0 * .1 .2 50 TRIPLE PEAK 8500 .1 .0 * .3 .1 300 ----- ----- Basin wide percent of average 67* 108 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100* .1 .1 100 HEWINTA 9500 .0 .1 0* .8 .2 400 HICKERSON PARK 9100 .0 .0 100* .1 .1 100 HOLE-IN-ROCK 9150 .0 .0 100* .4 .1 400 INDIAN CREEK 9425 .0 .1 0* .0 .2 0 KELLEY R.S. 8180 .0 .0 100* .0 .1 0 STEEL CREEK PARK 10100 1.6 .4 400* .5 .2 250 ----- ----- Basin wide percent of average 267* 190 UPPER BEAR RIVER BUG LAKE 7950 .1 .2 50* .1 .2 50 HAYDEN FORK 9100 .1 .1 100* .5 .2 250 KELLEY R.S. 8180 .0 .0 100* .0 .1 0 LILY LAKE 9050 .0 .1 0* .7 .2 350 MONTE CRISTO 8960 .1 .3 33* .2 .2 100 SALT RIVER SUMMIT 7600 .0 .0 100* .0 .1 0 TRIAL LAKE 9960 .0 .4 0* .2 .2 100 ----- ----- Basin wide percent of average 27* 142 ----------------------------------------------------------------------------- -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 1971-2000. 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.