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: OCTOBER 4 , 2007 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .2 .0 * .4 .2 200 COTTONWOOD CREEK 7600 .0 .0 100* .2 .3 67 GRANITE CREEK 6770 .2 .0 * .3 .2 150 GRASSY LAKE 7265 .2 .1 200* .6 .3 200 GROS VENTRE SUMMIT 8750 .1 .1 100* .1 .2 50 LEWIS LAKE DIVIDE 7850 -M .0 * -M .3 * PHILLIPS BENCH 8200 .0 .0 100* .7 .2 350 SALT RIVER SUMMIT 7600 .1 .0 * .0 .2 0 SNAKE RIVER STATION 6920 .1 .0 * .6 .2 300 SPRING CREEK DIVIDE 9000 .1 .1 100* .2 .3 67 THUMB DIVIDE 7980 .1 .0 * .5 .2 250 TOGWOTEE PASS 9580 .6 .2 300* .8 .3 267 TWO OCEAN PLATEAU 9240 .9 .3 300* .8 .3 267 WILLOW CREEK 8450 .1 .1 100* .2 .4 50 ----- ----- Basin wide percent of average 222* 164 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 .7 .6 117* .4 .2 200 BLACK BEAR 8170 .4 .4 100* .7 .3 233 CANYON 8090 .1 .1 100* .3 .2 150 FISHER CREEK 9100 1.6 .4 400* 1.3 .3 433 MADISON PLATEAU 7750 .3 .2 150* .6 .3 200 NORTHEAST ENTRANCE 7350 .1 .0 * .3 .2 150 PARKER PEAK 9400 .5 .6 83* .0 .2 0 SYLVAN LAKE 8420 .3 .5 60* .3 .3 100 THUMB DIVIDE 7980 .1 .0 * .5 .2 250 TWO OCEAN PLATEAU 9240 .9 .3 300* .8 .3 267 WHISKEY CREEK 6800 .2 .1 200* .8 .2 400 WHITE MILL 8700 .8 .3 267* .6 .3 200 WOLVERINE 7650 .1 .0 * .2 .2 100 ----- ----- Basin wide percent of average 166* 212 WIND RIVER BURROUGHS CREEK 8750 .6 .2 300* .5 .2 250 COLD SPRINGS 9630 .1 .2 50* .1 .2 50 DEER PARK 9700 .1 .4 25* .1 .3 33 HOBBS PARK 10100 .1 .4 25* .3 .2 150 LITTLE WARM 9370 .3 .2 150* .3 .2 150 SOUTH PASS 9040 .1 .2 50* .0 .2 0 ST. LAWRENCE ALT 8620 .2 .1 200* .1 .2 50 TOGWOTEE PASS 9580 .6 .2 300* .8 .3 267 TOWNSEND CREEK 8700 .1 .1 100* .1 .2 50 ----- ----- Basin wide percent of average 110* 115 BIGHORN BASIN BALD MTN. 9380 .0 .8 0* .1 .2 50 BEAR TRAP MEADOW 8200 .1 .1 100* .1 .2 50 BLACKWATER 9780 .4 .8 50* .5 .3 167 BONE SPRINGS DIV 9350 -M .7 * -M .3 * EVENING STAR 9200 .7 .6 117* .0 .3 0 GRAVE SPRINGS 8550 .1 .1 100* .1 .2 50 KIRWIN 9550 .6 .5 120* .4 .2 200 MARQUETTE 8760 .0 .5 0* .0 .2 0 MIDDLE POWDER 7760 .3 .3 100* .3 .3 100 OWL CREEK 8975 .0 .2 0* .1 .1 100 POWDER RIVER PASS 9480 .2 .3 67* .5 .2 250 SHELL CREEK 9580 .8 .9 89* .4 .2 200 SYLVAN LAKE 8420 .3 .5 60* .3 .3 100 SYLVAN ROAD 7120 .0 .0 100* .2 .2 100 TIMBER CREEK 7950 .0 .0 100* .0 .2 0 YOUNTS PEAK 8350 .4 .2 200* .6 .2 300 ----- ----- Basin wide percent of average 67* 109 SHOSHONE RIVER BLACKWATER 9780 .4 .8 50* .5 .3 167 EVENING STAR 9200 .7 .6 117* .0 .3 0 KIRWIN 9550 .6 .5 120* .4 .2 200 MARQUETTE 8760 .0 .5 0* .0 .2 0 SYLVAN LAKE 8420 .3 .5 60* .3 .3 100 SYLVAN ROAD 7120 .0 .0 100* .2 .2 100 YOUNTS PEAK 8350 .4 .2 200* .6 .2 300 ----- ----- Basin wide percent of average 77* 118 POWDER-TONGUE BEAR TRAP MEADOW 8200 .1 .1 100* .1 .2 50 BIG GOOSE 7990 .1 .1 100* .0 .2 0 BONE SPRINGS DIV 9350 -M .7 * -M .3 * BURGESS JUNCTION 7880 .0 .4 0* .1 .2 50 CLOUD PEAK RESERVOIR 9860 .4 .2 200* .3 .3 100 DOME LAKE 8880 .0 .4 0* .2 .3 67 GRAVE SPRINGS 8550 .1 .1 100* .1 .2 50 HANSEN SAWMILL 8360 .3 .1 300* .1 .2 50 MIDDLE POWDER 7760 .3 .3 100* .3 .3 100 POWDER RIVER PASS 9480 .2 .3 67* .5 .2 250 SUCKER CREEK 8880 .1 .3 33* .2 .2 100 TIE CREEK 6870 .0 .0 100* .1 .3 33 ----- ----- Basin wide percent of average 70* 77 BELLE FOURCHE BLIND PARK 6890 .0 .0 100* .1 .3 33 COLE CANYON 5910 .0 .0 100* .0 -M * NORTH RAPID CREEK 6130 .0 .0 100* .1 .3 33 ----- ----- Basin wide percent of average * 33 UPPER N. PLATTE RIVER COLUMBINE 9160 .1 .0 * 1.4 .2 700 DIVIDE PEAK 8860 -M .2 * -M .3 * ELK RIVER 8700 .0 .0 100* .5 .2 250 JOE WRIGHT 10120 .3 .2 150* 1.3 .3 433 NORTH FRENCH CREEK 10130 .8 .4 200* .8 .3 267 OLD BATTLE 9920 .8 .4 200* 1.1 .4 275 SAGE CREEK BASIN 7850 .1 .1 100* .3 .2 150 SOUTH BRUSH CREEK 8440 .2 .0 * .7 .3 233 TOWER 10500 1.3 .3 433* 1.4 .4 350 WEBBER SPRINGS 9250 .1 .2 50* .7 .3 233 WILLOW CREEK PASS 9540 .2 .1 200* .7 .2 350 ----- ----- Basin wide percent of average 212* 318 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 .1 .4 25* .5 .3 167 CASPER MTN. 7850 .1 .1 100* .3 .3 100 DEADMAN HILL 10220 .5 .4 125* .4 .3 133 DEER PARK 9700 .1 .4 25* .1 .3 33 LAPRELE CREEK 8375 .0 .1 0* .3 .2 150 RENO HILL 8500 .1 .2 50* .3 .3 100 ROACH 9700 .1 .1 100* .5 .2 250 SAND LAKE 10050 .9 .6 150* .7 .3 233 SOUTH PASS 9040 .1 .2 50* .0 .2 0 WINDY PEAK 7900 .0 .0 100* .2 .2 100 ----- ----- Basin wide percent of average 80* 127 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .1 .0 * .6 .2 300 DIVIDE PEAK 8860 -M .2 * -M .3 * OLD BATTLE 9920 .8 .4 200* 1.1 .4 275 SANDSTONE RS 8150 .0 .0 100* .4 .2 200 WHISKEY PARK 8950 .0 .1 0* .8 .3 267 ----- ----- Basin wide percent of average 160* 264 UPPER GREEN RIVER BIG SANDY OPENING 9080 .1 .1 100* .1 .2 50 BLIND BULL SUM 8900 .0 .1 0* .2 .2 100 EAST RIM DIVIDE 7930 .0 .0 100* .1 .1 100 ELKHART PARK G.S. 9400 .0 .0 100* .4 .2 200 GROS VENTRE SUMMIT 8750 .1 .1 100* .1 .2 50 KENDALL R.S. 7740 .1 .0 * .1 .2 50 LOOMIS PARK 8240 .1 .0 * .1 .2 50 NEW FORK LAKE 8340 .0 .0 100* .1 .2 50 SNIDER BASIN 8060 .3 .0 * .1 .2 50 SPRING CREEK DIVIDE 9000 .1 .1 100* .2 .3 67 TRIPLE PEAK 8500 .1 .0 * .3 .2 150 ----- ----- Basin wide percent of average 75* 82 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* .2 .2 100 HOLE-IN-ROCK 9150 .0 .0 100* .4 .2 200 INDIAN CREEK 9425 .1 .1 100* .1 .3 33 KELLEY R.S. 8180 .0 .0 100* .1 .2 50 STEEL CREEK PARK 10100 1.5 .4 375* .4 .2 200 ----- ----- Basin wide percent of average 267* 150 UPPER BEAR RIVER BUG LAKE 7950 .0 .3 0* .0 .2 0 HAYDEN FORK 9100 .1 .2 50* .4 .2 200 KELLEY R.S. 8180 .0 .0 100* .1 .2 50 LILY LAKE 9050 .0 .2 0* .6 .2 300 MONTE CRISTO 8960 .0 .3 0* .3 .3 100 SALT RIVER SUMMIT 7600 .1 .0 * .0 .2 0 TRIAL LAKE 9960 .1 .4 25* .2 .3 67 ----- ----- Basin wide percent of average 14* 100 ----------------------------------------------------------------------------- -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.