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 1 , 2007 ----------------------------------------------------------------------------- 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* .0 .0 100 COTTONWOOD CREEK 7600 .0 .0 100* .0 .0 100 GRANITE CREEK 6770 .0 .0 100* .0 .0 100 GRASSY LAKE 7265 .1 .0 * .0 .0 100 GROS VENTRE SUMMIT 8750 .0 .0 100* .0 .0 100 LEWIS LAKE DIVIDE 7850 -M .0 * -M .0 * PHILLIPS BENCH 8200 .0 .0 100* .0 .0 100 SALT RIVER SUMMIT 7600 .1 .0 * .0 .0 100 SNAKE RIVER STATION 6920 .0 .0 100* .0 .0 100 SPRING CREEK DIVIDE 9000 .1 .0 * .0 .0 100 THUMB DIVIDE 7980 .0 .0 100* .0 .0 100 TOGWOTEE PASS 9580 .0 .0 100* .0 .0 100 TWO OCEAN PLATEAU 9240 .1 .0 * .0 .0 100 WILLOW CREEK 8450 .1 .0 * .0 .0 100 ----- ----- Basin wide percent of average * * UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 .2 .4 50* .0 .0 100 BLACK BEAR 8170 .0 .3 0* .0 .0 100 CANYON 8090 .1 .1 100* .0 .0 100 FISHER CREEK 9100 .2 .3 67* .0 .0 100 MADISON PLATEAU 7750 .1 .2 50* .0 .0 100 NORTHEAST ENTRANCE 7350 .0 .0 100* .0 .0 100 PARKER PEAK 9400 .0 .5 0* .0 .0 100 SYLVAN LAKE 8420 .1 .4 25* .0 .0 100 THUMB DIVIDE 7980 .0 .0 100* .0 .0 100 TWO OCEAN PLATEAU 9240 .1 .0 * .0 .0 100 WHISKEY CREEK 6800 .1 .1 100* .0 .0 100 WHITE MILL 8700 .2 .2 100* .0 .0 100 WOLVERINE 7650 .1 .0 * .0 .0 100 ----- ----- Basin wide percent of average 40* * WIND RIVER BURROUGHS CREEK 8750 .2 .2 100* .0 .0 100 COLD SPRINGS 9630 .0 .2 0* .0 .0 100 DEER PARK 9700 .1 .3 33* .0 .0 100 HOBBS PARK 10100 .1 .3 33* .0 .0 100 LITTLE WARM 9370 .1 .2 50* .0 .0 100 SOUTH PASS 9040 .1 .1 100* .0 .0 100 ST. LAWRENCE ALT 8620 .2 .1 200* .0 .0 100 TOGWOTEE PASS 9580 .0 .0 100* .0 .0 100 TOWNSEND CREEK 8700 .1 .0 * .0 .0 100 ----- ----- Basin wide percent of average 57* * BIGHORN BASIN BALD MTN. 9380 .3 .6 50* .0 .0 100 BEAR TRAP MEADOW 8200 .1 .1 100* .0 .0 100 BLACKWATER 9780 .0 .6 0* .0 .0 100 BONE SPRINGS DIV 9350 -M .5 * -M .0 * EVENING STAR 9200 .2 .4 50* .0 .0 100 GRAVE SPRINGS 8550 .1 .1 100* .0 .0 100 KIRWIN 9550 .2 .4 50* .0 .0 100 MARQUETTE 8760 .0 .4 0* .0 .0 100 MIDDLE POWDER 7760 .2 .2 100* .0 .0 100 OWL CREEK 8975 .1 .2 50* .0 .0 100 POWDER RIVER PASS 9480 .1 .3 33* .0 .0 100 SHELL CREEK 9580 .5 .7 71* .0 .0 100 SYLVAN LAKE 8420 .1 .4 25* .0 .0 100 SYLVAN ROAD 7120 .0 .0 100* .0 .0 100 TIMBER CREEK 7950 .0 .0 100* .0 .0 100 YOUNTS PEAK 8350 .2 .1 200* .0 .0 100 ----- ----- Basin wide percent of average 47* * SHOSHONE RIVER BLACKWATER 9780 .0 .6 0* .0 .0 100 EVENING STAR 9200 .2 .4 50* .0 .0 100 KIRWIN 9550 .2 .4 50* .0 .0 100 MARQUETTE 8760 .0 .4 0* .0 .0 100 SYLVAN LAKE 8420 .1 .4 25* .0 .0 100 SYLVAN ROAD 7120 .0 .0 100* .0 .0 100 YOUNTS PEAK 8350 .2 .1 200* .0 .0 100 ----- ----- Basin wide percent of average 30* * POWDER-TONGUE BEAR TRAP MEADOW 8200 .1 .1 100* .0 .0 100 BIG GOOSE 7990 .2 .0 * .0 .0 100 BONE SPRINGS DIV 9350 -M .5 * -M .0 * BURGESS JUNCTION 7880 .1 .3 33* .0 .0 100 CLOUD PEAK RESERVOIR 9860 .2 .1 200* .0 .0 100 DOME LAKE 8880 .1 .3 33* .0 .0 100 GRAVE SPRINGS 8550 .1 .1 100* .0 .0 100 HANSEN SAWMILL 8360 .2 .1 200* .0 .0 100 MIDDLE POWDER 7760 .2 .2 100* .0 .0 100 POWDER RIVER PASS 9480 .1 .3 33* .0 .0 100 SUCKER CREEK 8880 .2 .2 100* .0 .0 100 TIE CREEK 6870 .0 .0 100* .0 .0 100 ----- ----- Basin wide percent of average 76* * BELLE FOURCHE BLIND PARK 6890 .0 .0 100* .0 .0 100 COLE CANYON 5910 .0 .0 100* .0 -M * NORTH RAPID CREEK 6130 .0 .0 100* .0 .0 100 ----- ----- Basin wide percent of average * * UPPER N. PLATTE RIVER COLUMBINE 9160 .0 .0 100* .0 .0 100 DIVIDE PEAK 8860 -M .1 * -M .0 * ELK RIVER 8700 .0 .0 100* .0 .0 100 JOE WRIGHT 10120 .1 .1 100* .0 .0 100 NORTH FRENCH CREEK 10130 .6 .1 600* .0 .0 100 OLD BATTLE 9920 .6 .2 300* .0 .0 100 SAGE CREEK BASIN 7850 .1 .0 * .0 .0 100 SOUTH BRUSH CREEK 8440 .2 .0 * .0 .0 100 TOWER 10500 .7 .1 700* .0 .0 100 WEBBER SPRINGS 9250 .0 .1 0* .0 .0 100 WILLOW CREEK PASS 9540 .2 .0 * .0 .0 100 ----- ----- Basin wide percent of average 333* * LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 .3 .2 150* .0 .0 100 CASPER MTN. 7850 .5 .0 * .0 .0 100 DEADMAN HILL 10220 .1 .2 50* .0 .0 100 DEER PARK 9700 .1 .3 33* .0 .0 100 LAPRELE CREEK 8375 .0 .0 100* .0 .0 100 RENO HILL 8500 .1 .0 * .0 .0 100 ROACH 9700 .1 .0 * .0 .0 100 SAND LAKE 10050 .6 .4 150* .0 .0 100 SOUTH PASS 9040 .1 .1 100* .0 .0 100 WINDY PEAK 7900 .2 .0 * .0 .0 100 ----- ----- Basin wide percent of average 100* * LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100* .0 .0 100 DIVIDE PEAK 8860 -M .1 * -M .0 * OLD BATTLE 9920 .6 .2 300* .0 .0 100 SANDSTONE RS 8150 -M .0 * .0 .0 100 WHISKEY PARK 8950 .0 .0 100* .0 .0 100 ----- ----- Basin wide percent of average 300* * UPPER GREEN RIVER BIG SANDY OPENING 9080 .0 .0 100* .0 .0 100 BLIND BULL SUM 8900 .0 .0 100* .0 .0 100 EAST RIM DIVIDE 7930 .0 .0 100* .0 .0 100 ELKHART PARK G.S. 9400 .0 .0 100* .0 .0 100 GROS VENTRE SUMMIT 8750 .0 .0 100* .0 .0 100 KENDALL R.S. 7740 .0 .0 100* .0 .0 100 LOOMIS PARK 8240 .0 .0 100* .0 .0 100 NEW FORK LAKE 8340 .0 .0 100* .0 .0 100 SNIDER BASIN 8060 .2 .0 * .0 .0 100 SPRING CREEK DIVIDE 9000 .1 .0 * .0 .0 100 TRIPLE PEAK 8500 .0 .0 100* .0 .0 100 ----- ----- Basin wide percent of average * * LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100* .0 .0 100 HEWINTA 9500 .0 .0 100* .0 .0 100 HICKERSON PARK 9100 .1 .0 * .0 .0 100 HOLE-IN-ROCK 9150 .0 .0 100* .0 .0 100 INDIAN CREEK 9425 .1 .0 * .0 .0 100 KELLEY R.S. 8180 .0 .0 100* .0 .0 100 STEEL CREEK PARK 10100 1.3 .3 433* .0 .0 100 ----- ----- Basin wide percent of average 433* * UPPER BEAR RIVER BUG LAKE 7950 .0 .2 0* .0 .0 100 HAYDEN FORK 9100 .2 .1 200* .0 .0 100 KELLEY R.S. 8180 .0 .0 100* .0 .0 100 LILY LAKE 9050 .0 .1 0* .0 .0 100 MONTE CRISTO 8960 .0 .2 0* .0 .0 100 SALT RIVER SUMMIT 7600 .1 .0 * .0 .0 100 TRIAL LAKE 9960 .0 .3 0* .0 .0 100 ----- ----- Basin wide percent of average 22* * ----------------------------------------------------------------------------- -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.