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 3 , 2002 ----------------------------------------------------------------------------- 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* .2 .1 200 COTTONWOOD CREEK 7600 .1 .0 * .4 .2 200 GRANITE CREEK 6770 .5 .0 * .7 .1 700 GRASSY LAKE 7265 .0 .0 100* .4 .2 200 GROS VENTRE SUMMIT 8775 .6 .1 600* .7 .1 700 LEWIS LAKE DIVIDE 7860 .0 .0 100* .1 .2 50 PHILLIPS BENCH 8200 -M .0 * -M .2 * SALT RIVER SUMMIT 7600 .5 .0 * .6 .1 600 SNAKE RIVER STATION 6920 -M .0 * .1 .1 100 SPRING CREEK DIVIDE 9000 .6 .0 * .6 .2 300 THUMB DIVIDE 7980 .3 .0 * .5 .1 500 TOGWOTEE PASS 9580 .4 .1 400* .3 .2 150 TWO OCEAN PLATEAU 9360 .5 .2 250* .2 .2 100 WILLOW CREEK 8450 .0 .1 0* .4 .2 200 ----- ----- Basin wide percent of average 300* 260 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 .5 .5 100* .2 .1 200 BLACK BEAR 8170 .5 .4 125* .3 .2 150 CANYON 8090 .3 .1 300* .3 .1 300 FISHER CREEK 9100 .4 .4 100* .2 .2 100 MADISON PLATEAU 7750 .5 .2 250* .3 .2 150 NORTHEAST ENTRANCE 7350 .0 .0 100* .1 .1 100 PARKER PEAK 9400 .2 .6 33* .4 .2 200 SYLVAN LAKE 8420 .3 .5 60* .2 .2 100 THUMB DIVIDE 7980 .3 .0 * .5 .1 500 TWO OCEAN PLATEAU 9360 .5 .2 250* .2 .2 100 WHISKEY CREEK 6800 .3 .1 300* .1 .1 100 WHITE MILL 8700 .4 .3 133* .2 .2 100 WOLVERINE 7650 .1 .0 * .3 .1 300 ----- ----- Basin wide percent of average 118* 165 WIND RIVER BURROUGHS CREEK 8750 .5 .2 250* .6 .1 600 COLD SPRINGS 9630 1.0 .2 500* 1.0 .1 1000 DEER PARK 9700 .6 .4 150* .5 .2 250 HOBBS PARK 10100 1.7 .4 425* 1.3 .1 1300 LITTLE WARM 9370 .7 .2 350* .3 .1 300 SOUTH PASS 9040 .4 .1 400* .6 .1 600 ST. LAWRENCE ALT 8620 1.4 .1 1400* 1.4 .1 1400 TOGWOTEE PASS 9580 .4 .1 400* .3 .2 150 TOWNSEND CREEK 8700 .9 .0 * 1.1 .1 1100 ----- ----- Basin wide percent of average 394* 645 BIGHORN BASIN BALD MTN. 9380 .6 .7 86* .4 .2 200 BEAR TRAP MEADOW 8200 .2 .1 200* .3 .1 300 BLACKWATER 9780 .7 .7 100* .6 .2 300 BONE SPRINGS DIV 9350 .4 .6 67* .3 .2 150 EVENING STAR 9200 .4 .5 80* .4 .2 200 GRAVE SPRINGS 8550 .5 .1 500* .5 .1 500 KIRWIN 9550 .3 .5 60* .5 .1 500 MARQUETTE 8760 .5 .5 100* .9 .2 450 MIDDLE POWDER 7760 .1 .3 33* .3 .2 150 OWL CREEK 8975 .8 .2 400* .8 .1 800 POWDER RIVER PASS 9480 .3 .3 100* .3 .1 300 SHELL CREEK 9580 .4 .8 50* .4 .1 400 SYLVAN LAKE 8420 .3 .5 60* .2 .2 100 SYLVAN ROAD 7120 .1 .0 * .1 .1 100 TIMBER CREEK 7950 .5 .0 * .7 .1 700 YOUNTS PEAK 8350 .2 .2 100* .2 .1 200 ----- ----- Basin wide percent of average 95* 300 SHOSHONE RIVER BLACKWATER 9780 .7 .7 100* .6 .2 300 EVENING STAR 9200 .4 .5 80* .4 .2 200 KIRWIN 9550 .3 .5 60* .5 .1 500 MARQUETTE 8760 .5 .5 100* .9 .2 450 SYLVAN LAKE 8420 .3 .5 60* .2 .2 100 SYLVAN ROAD 7120 .1 .0 * .1 .1 100 YOUNTS PEAK 8350 .2 .2 100* .2 .1 200 ----- ----- Basin wide percent of average 83* 264 POWDER-TONGUE BEAR TRAP MEADOW 8200 .2 .1 200* .3 .1 300 BIG GOOSE 7990 .0 .0 100* .2 .1 200 BONE SPRINGS DIV 9350 .4 .6 67* .3 .2 150 BURGESS JUNCTION 7880 -M .3 * -M .1 * CLOUD PEAK RESERVOIR 9860 .4 .1 400* .5 .2 250 DOME LAKE 8880 .1 .4 25* .3 .2 150 GRAVE SPRINGS 8550 .5 .1 500* .5 .1 500 HANSEN SAWMILL 8360 .5 .1 500* .6 .1 600 MIDDLE POWDER 7760 .1 .3 33* .3 .2 150 POWDER RIVER PASS 9480 .3 .3 100* .3 .1 300 SUCKER CREEK 8880 .4 .2 200* .3 .2 150 TIE CREEK 6870 .1 .0 * .4 .2 200 ----- ----- Basin wide percent of average 132* 235 BELLE FOURCHE BLIND PARK 6890 .1 .0 * .4 .2 200 COLE CANYON 5910 -M -M * .0 -M * NORTH RAPID CREEK 6130 .0 .0 100* .3 .2 150 ----- ----- Basin wide percent of average * 175 UPPER N. PLATTE RIVER COLUMBINE 9400 .4 .0 * .3 .2 150 DIVIDE PEAK 8800 .1 .2 50* .8 .2 400 ELK RIVER 8700 .0 .0 100* .3 .1 300 JOE WRIGHT 10120 .0 .2 0* .3 .2 150 NORTH FRENCH CREEK 10100 .1 .3 33* .3 .2 150 OLD BATTLE 10000 .7 .3 233* .7 .2 350 SAGE CREEK BASIN 7850 .2 .0 * .7 -M * SOUTH BRUSH CREEK 8400 .0 .0 100* .2 .2 100 TOWER 10500 .7 .2 350* .7 .3 233 WEBBER SPRINGS 9200 .1 .2 50* .5 .2 250 WILLOW CREEK PASS 9540 .0 .0 100* .4 .1 400 ----- ----- Basin wide percent of average 121* 237 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .2 .3 67* .9 .2 450 CASPER MTN. 7900 .0 .1 0* .3 .2 150 DEADMAN HILL 10220 .2 .3 67* .2 .2 100 DEER PARK 9700 .6 .4 150* .5 .2 250 LAPRELE CREEK 8320 .5 .0 * .2 .1 200 RENO HILL 8400 .1 .1 100* .3 .2 150 ROACH 9700 .1 .0 * .2 .2 100 SAND LAKE 10080 .1 .5 20* .3 .2 150 SOUTH PASS 9040 .4 .1 400* .6 .1 600 WINDY PEAK 7840 .1 .0 * .1 .1 100 ----- ----- Basin wide percent of average 89* 212 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100* 1.0 .1 1000 DIVIDE PEAK 8800 .1 .2 50* .8 .2 400 OLD BATTLE 10000 .7 .3 233* .7 .2 350 SANDSTONE RS 8150 .0 .0 100* .6 .2 300 WHISKEY PARK 8950 .2 .1 200* .5 .2 250 ----- ----- Basin wide percent of average 167* 400 UPPER GREEN RIVER BIG SANDY OPENING 9100 .7 .1 700* .6 .1 600 BLIND BULL SUM 8650 .3 .1 300* .5 .1 500 EAST RIM DIVIDE 7930 .6 .0 * .9 .1 900 ELKHART PARK G.S. 9400 1.1 .0 * 1.0 .1 1000 GROS VENTRE SUMMIT 8775 .6 .1 600* .7 .1 700 KENDALL R.S. 7740 .5 .0 * .7 .1 700 LOOMIS PARK 8240 .8 .0 * .8 .1 800 NEW FORK LAKE 8340 .6 .0 * .8 .1 800 SNIDER BASIN 8250 .7 .0 * .7 .1 700 SPRING CREEK DIVIDE 9000 .6 .0 * .6 .2 300 TRIPLE PEAK 8500 .3 .0 * .7 .1 700 ----- ----- Basin wide percent of average 533* 667 LOWER GREEN RIVER HAMS FORK 7840 .1 .0 * .8 .1 800 HEWINTA 9500 .0 .1 0* .7 .2 350 HICKERSON PARK 9150 .8 .0 * 1.1 .1 1100 HOLE-IN-ROCK 9150 .0 .0 100* 1.0 .1 1000 INDIAN CREEK 9425 1.1 .1 1100* .9 .2 450 KELLEY R.S. 8180 .4 .0 * .4 .1 400 STEEL CREEK PARK 10100 .9 .4 225* .2 .2 100 ----- ----- Basin wide percent of average 333* 510 UPPER BEAR RIVER BUG LAKE 7950 .5 .2 250* .9 .2 450 HAYDEN FORK 9400 .3 .1 300* 1.3 .2 650 KELLEY R.S. 8180 .4 .0 * .4 .1 400 LILY LAKE 9050 1.1 .1 1100* 1.2 .2 600 MONTE CRISTO 8960 .0 .3 0* .9 .2 450 SALT RIVER SUMMIT 7600 .5 .0 * .6 .1 600 TRIAL LAKE 9960 1.2 .4 300* 1.3 .2 650 ----- ----- Basin wide percent of average 282* 550 ----------------------------------------------------------------------------- -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.