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 SATURDAY: OCTOBER 5 , 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* .3 .3 100 COTTONWOOD CREEK 7600 .1 .0 * .8 .4 200 GRANITE CREEK 6770 .2 .0 * .7 .2 350 GRASSY LAKE 7265 .2 .1 200* .7 .5 140 GROS VENTRE SUMMIT 8775 .6 .2 300* .7 .2 350 LEWIS LAKE DIVIDE 7860 .3 .0 * .7 .4 175 PHILLIPS BENCH 8200 .5 .1 500* .8 .3 267 SALT RIVER SUMMIT 7600 .1 .0 * .8 .3 267 SNAKE RIVER STATION 6920 -M .0 * .4 .3 133 SPRING CREEK DIVIDE 9000 .7 .1 700* .8 .3 267 THUMB DIVIDE 7980 .2 .0 * .9 .3 300 TOGWOTEE PASS 9580 .7 .3 233* .6 .4 150 TWO OCEAN PLATEAU 9360 .8 .3 267* .5 .4 125 WILLOW CREEK 8450 .2 .1 200* .9 .5 180 ----- ----- Basin wide percent of average 308* 200 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 1.0 .7 143* .7 .3 233 BLACK BEAR 8170 1.4 .4 350* 1.3 .5 260 CANYON 8090 .2 .1 200* .5 .2 250 FISHER CREEK 9100 .8 .5 160* .8 .4 200 MADISON PLATEAU 7750 .5 .3 167* .7 .3 233 NORTHEAST ENTRANCE 7350 .1 .0 * .3 .2 150 PARKER PEAK 9400 .3 .7 43* .8 .3 267 SYLVAN LAKE 8420 .8 .5 160* .8 .3 267 THUMB DIVIDE 7980 .2 .0 * .9 .3 300 TWO OCEAN PLATEAU 9360 .8 .3 267* .5 .4 125 WHISKEY CREEK 6800 .2 .1 200* .7 .3 233 WHITE MILL 8700 .8 .3 267* .7 .4 175 WOLVERINE 7650 .1 .0 * .7 .2 350 ----- ----- Basin wide percent of average 174* 229 WIND RIVER BURROUGHS CREEK 8750 .6 .2 300* .9 .2 450 COLD SPRINGS 9630 1.0 .2 500* 1.1 .3 367 DEER PARK 9700 .7 .4 175* .6 .3 200 HOBBS PARK 10100 1.7 .4 425* 1.3 .3 433 LITTLE WARM 9370 .8 .3 267* .6 .2 300 SOUTH PASS 9040 .4 .2 200* .6 .3 200 ST. LAWRENCE ALT 8620 1.3 .1 1300* 1.5 .2 750 TOGWOTEE PASS 9580 .7 .3 233* .6 .4 150 TOWNSEND CREEK 8700 .8 .1 800* 1.2 .3 400 ----- ----- Basin wide percent of average 364* 336 BIGHORN BASIN BALD MTN. 9380 .7 .9 78* .6 .3 200 BEAR TRAP MEADOW 8200 .0 .1 0* .4 .2 200 BLACKWATER 9780 1.1 .9 122* 1.0 .4 250 BONE SPRINGS DIV 9350 .7 .7 100* .7 .3 233 EVENING STAR 9200 .6 .6 100* .7 .4 175 GRAVE SPRINGS 8550 .5 .1 500* .5 .3 167 KIRWIN 9550 .8 .5 160* 1.0 .2 500 MARQUETTE 8760 .8 .5 160* 1.2 .3 400 MIDDLE POWDER 7760 .1 .3 33* .4 .3 133 OWL CREEK 8975 1.1 .2 550* .9 .2 450 POWDER RIVER PASS 9480 .4 .4 100* .6 .3 200 SHELL CREEK 9580 .6 1.0 60* .5 .3 167 SYLVAN LAKE 8420 .8 .5 160* .8 .3 267 SYLVAN ROAD 7120 .3 .0 * .5 .3 167 TIMBER CREEK 7950 .8 .0 * .9 .2 450 YOUNTS PEAK 8350 .4 .2 200* .6 .2 300 ----- ----- Basin wide percent of average 125* 251 SHOSHONE RIVER BLACKWATER 9780 1.1 .9 122* 1.0 .4 250 EVENING STAR 9200 .6 .6 100* .7 .4 175 KIRWIN 9550 .8 .5 160* 1.0 .2 500 MARQUETTE 8760 .8 .5 160* 1.2 .3 400 SYLVAN LAKE 8420 .8 .5 160* .8 .3 267 SYLVAN ROAD 7120 .3 .0 * .5 .3 167 YOUNTS PEAK 8350 .4 .2 200* .6 .2 300 ----- ----- Basin wide percent of average 141* 276 POWDER-TONGUE BEAR TRAP MEADOW 8200 .0 .1 0* .4 .2 200 BIG GOOSE 7990 .4 .1 400* .7 .3 233 BONE SPRINGS DIV 9350 .7 .7 100* .7 .3 233 BURGESS JUNCTION 7880 .6 .4 150* .8 .3 267 CLOUD PEAK RESERVOIR 9860 .3 .2 150* .6 .3 200 DOME LAKE 8880 .5 .4 125* .6 .3 200 GRAVE SPRINGS 8550 .5 .1 500* .5 .3 167 HANSEN SAWMILL 8360 .3 .1 300* .7 .2 350 MIDDLE POWDER 7760 .1 .3 33* .4 .3 133 POWDER RIVER PASS 9480 .4 .4 100* .6 .3 200 SUCKER CREEK 8880 .6 .3 200* .8 .3 267 TIE CREEK 6870 .2 .0 * .8 .3 267 ----- ----- Basin wide percent of average 142* 224 BELLE FOURCHE BLIND PARK 6890 .1 .0 * .5 .3 167 COLE CANYON 5910 -M -M * .1 -M * NORTH RAPID CREEK 6130 .0 .0 100* .4 .3 133 ----- ----- Basin wide percent of average * 150 UPPER N. PLATTE RIVER COLUMBINE 9400 .8 .0 * 1.5 .3 500 DIVIDE PEAK 8800 .7 .3 233* 1.8 .4 450 ELK RIVER 8700 .0 .0 100* 1.2 .3 400 JOE WRIGHT 10120 .3 .3 100* 1.2 .5 240 NORTH FRENCH CREEK 10100 1.6 .5 320* 2.0 .5 400 OLD BATTLE 10000 2.2 .5 440* 2.3 .5 460 SAGE CREEK BASIN 7850 .1 .1 100* 1.4 -M * SOUTH BRUSH CREEK 8400 .8 .1 800* 1.6 .3 533 TOWER 10500 2.4 .4 600* 2.6 .5 520 WEBBER SPRINGS 9200 .6 .2 300* 1.4 .4 350 WILLOW CREEK PASS 9540 .0 .1 0* .5 .3 167 ----- ----- Basin wide percent of average 348* 403 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .6 .4 150* 1.9 .3 633 CASPER MTN. 7900 .0 .2 0* .9 .3 300 DEADMAN HILL 10220 .3 .4 75* .3 .3 100 DEER PARK 9700 .7 .4 175* .6 .3 200 LAPRELE CREEK 8320 -M .1 * -M .3 * RENO HILL 8400 1.0 .2 500* 1.2 .3 400 ROACH 9700 .4 .1 400* .7 .3 233 SAND LAKE 10080 1.0 .7 143* 1.3 .4 325 SOUTH PASS 9040 .4 .2 200* .6 .3 200 WINDY PEAK 7840 .5 .0 * .9 .2 450 ----- ----- Basin wide percent of average 169* 311 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100* 1.9 .3 633 DIVIDE PEAK 8800 .7 .3 233* 1.8 .4 450 OLD BATTLE 10000 2.2 .5 440* 2.3 .5 460 SANDSTONE RS 8150 .0 .0 100* 1.6 .3 533 WHISKEY PARK 8950 .8 .1 800* 1.6 .4 400 ----- ----- Basin wide percent of average 411* 484 UPPER GREEN RIVER BIG SANDY OPENING 9100 .7 .1 700* .7 .2 350 BLIND BULL SUM 8650 .4 .1 400* .6 .3 200 EAST RIM DIVIDE 7930 .5 .0 * .9 .2 450 ELKHART PARK G.S. 9400 1.1 .1 1100* 1.0 .3 333 GROS VENTRE SUMMIT 8775 .6 .2 300* .7 .2 350 KENDALL R.S. 7740 .2 .0 * .7 .2 350 LOOMIS PARK 8240 .3 .1 300* .8 .2 400 NEW FORK LAKE 8340 .3 .0 * .7 .2 350 SNIDER BASIN 8250 .5 .0 * .7 .2 350 SPRING CREEK DIVIDE 9000 .7 .1 700* .8 .3 267 TRIPLE PEAK 8500 .1 .1 100* 1.0 .3 333 ----- ----- Basin wide percent of average 488* 331 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100* .9 .2 450 HEWINTA 9500 .0 .1 0* .7 .3 233 HICKERSON PARK 9150 .5 .0 * 1.1 .2 550 HOLE-IN-ROCK 9150 .0 .0 100* .9 .2 450 INDIAN CREEK 9425 1.5 .1 1500* 1.4 .3 467 KELLEY R.S. 8180 .5 .1 500* .7 .3 233 STEEL CREEK PARK 10100 1.0 .4 250* .3 .3 100 ----- ----- Basin wide percent of average 429* 333 UPPER BEAR RIVER BUG LAKE 7950 .1 .3 33* .9 .3 300 HAYDEN FORK 9400 .0 .2 0* 1.4 .3 467 KELLEY R.S. 8180 .5 .1 500* .7 .3 233 LILY LAKE 9050 .8 .2 400* 1.2 .3 400 MONTE CRISTO 8960 -M .3 * .9 .4 225 SALT RIVER SUMMIT 7600 .1 .0 * .8 .3 267 TRIAL LAKE 9960 1.0 .4 250* 1.4 .4 350 ----- ----- Basin wide percent of average 200* 317 ----------------------------------------------------------------------------- -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.