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 7 , 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* .4 .4 100 COTTONWOOD CREEK 7600 .1 .0 * .8 .6 133 GRANITE CREEK 6770 .1 .0 * .9 .3 300 GRASSY LAKE 7265 .0 .1 0* 1.1 .7 157 GROS VENTRE SUMMIT 8775 .7 .3 233* .8 .4 200 LEWIS LAKE DIVIDE 7860 .0 .0 100* 1.1 .6 183 PHILLIPS BENCH 8200 .2 .1 200* .8 .5 160 SALT RIVER SUMMIT 7600 .1 .0 * .8 .4 200 SNAKE RIVER STATION 6920 -M .0 * .7 .4 175 SPRING CREEK DIVIDE 9000 .6 .1 600* .8 .5 160 THUMB DIVIDE 7980 .0 .0 100* .9 .4 225 TOGWOTEE PASS 9580 .9 .4 225* .8 .6 133 TWO OCEAN PLATEAU 9360 1.0 .5 200* .8 .6 133 WILLOW CREEK 8450 .0 .2 0* .9 .7 129 ----- ----- Basin wide percent of average 200* 163 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 1.2 .8 150* 1.0 .4 250 BLACK BEAR 8170 1.4 .5 280* 1.5 .7 214 CANYON 8090 .1 .1 100* .7 .4 175 FISHER CREEK 9100 .8 .6 133* .9 .7 129 MADISON PLATEAU 7750 .5 .3 167* .8 .5 160 NORTHEAST ENTRANCE 7350 .1 .0 * .4 .3 133 PARKER PEAK 9400 .6 .8 75* 1.1 .5 220 SYLVAN LAKE 8420 1.1 .6 183* 1.2 .5 240 THUMB DIVIDE 7980 .0 .0 100* .9 .4 225 TWO OCEAN PLATEAU 9360 1.0 .5 200* .8 .6 133 WHISKEY CREEK 6800 .1 .1 100* .9 .4 225 WHITE MILL 8700 .9 .4 225* .9 .5 180 WOLVERINE 7650 .1 .0 * 1.0 .4 250 ----- ----- Basin wide percent of average 164* 192 WIND RIVER BURROUGHS CREEK 8750 .7 .2 350* 1.0 .3 333 COLD SPRINGS 9630 1.0 .2 500* 1.3 .4 325 DEER PARK 9700 .7 .5 140* .6 .5 120 HOBBS PARK 10100 1.7 .5 340* 1.4 .4 350 LITTLE WARM 9370 .9 .3 300* .6 .3 200 SOUTH PASS 9040 .3 .2 150* .7 .4 175 ST. LAWRENCE ALT 8620 1.2 .1 1200* 1.5 .3 500 TOGWOTEE PASS 9580 .9 .4 225* .8 .6 133 TOWNSEND CREEK 8700 .7 .1 700* 1.2 .4 300 ----- ----- Basin wide percent of average 324* 253 BIGHORN BASIN BALD MTN. 9380 1.1 1.0 110* 1.1 .5 220 BEAR TRAP MEADOW 8200 .1 .1 100* .6 .3 200 BLACKWATER 9780 1.6 1.0 160* 1.4 .5 280 BONE SPRINGS DIV 9350 1.3 .8 162* 1.3 .5 260 EVENING STAR 9200 .9 .7 129* 1.1 .6 183 GRAVE SPRINGS 8550 .4 .1 400* .6 .4 150 KIRWIN 9550 .8 .6 133* 1.2 .4 300 MARQUETTE 8760 .8 .6 133* 1.2 .5 240 MIDDLE POWDER 7760 .1 .4 25* .6 .5 120 OWL CREEK 8975 1.1 .2 550* 1.0 .2 500 POWDER RIVER PASS 9480 .6 .4 150* .8 .4 200 SHELL CREEK 9580 1.1 1.1 100* 1.1 .4 275 SYLVAN LAKE 8420 1.1 .6 183* 1.2 .5 240 SYLVAN ROAD 7120 .1 .0 * 1.1 .4 275 TIMBER CREEK 7950 .7 .0 * .9 .3 300 YOUNTS PEAK 8350 .7 .3 233* .8 .4 200 ----- ----- Basin wide percent of average 148* 235 SHOSHONE RIVER BLACKWATER 9780 1.6 1.0 160* 1.4 .5 280 EVENING STAR 9200 .9 .7 129* 1.1 .6 183 KIRWIN 9550 .8 .6 133* 1.2 .4 300 MARQUETTE 8760 .8 .6 133* 1.2 .5 240 SYLVAN LAKE 8420 1.1 .6 183* 1.2 .5 240 SYLVAN ROAD 7120 .1 .0 * 1.1 .4 275 YOUNTS PEAK 8350 .7 .3 233* .8 .4 200 ----- ----- Basin wide percent of average 155* 242 POWDER-TONGUE BEAR TRAP MEADOW 8200 .1 .1 100* .6 .3 200 BIG GOOSE 7990 .2 .1 200* .8 .4 200 BONE SPRINGS DIV 9350 1.3 .8 162* 1.3 .5 260 BURGESS JUNCTION 7880 .6 .4 150* 1.0 .4 250 CLOUD PEAK RESERVOIR 9860 .3 .2 150* .9 .5 180 DOME LAKE 8880 .8 .5 160* 1.0 .5 200 GRAVE SPRINGS 8550 .4 .1 400* .6 .4 150 HANSEN SAWMILL 8360 .3 .1 300* .8 .4 200 MIDDLE POWDER 7760 .1 .4 25* .6 .5 120 POWDER RIVER PASS 9480 .6 .4 150* .8 .4 200 SUCKER CREEK 8880 .9 .3 300* 1.1 .5 220 TIE CREEK 6870 .0 .0 100* .9 .5 180 ----- ----- Basin wide percent of average 165* 196 BELLE FOURCHE BLIND PARK 6890 .0 .0 100* .7 .5 140 COLE CANYON 5910 -M -M * .3 -M * NORTH RAPID CREEK 6130 .1 .0 * .6 .5 120 ----- ----- Basin wide percent of average * 130 UPPER N. PLATTE RIVER COLUMBINE 9400 .4 .0 * 1.5 .5 300 DIVIDE PEAK 8800 .5 .4 125* 2.0 .5 400 ELK RIVER 8700 .0 .0 100* 1.2 .4 300 JOE WRIGHT 10120 .2 .4 50* 1.2 .7 171 NORTH FRENCH CREEK 10100 1.5 .7 214* 2.0 .7 286 OLD BATTLE 10000 2.3 .6 383* 2.5 .7 357 SAGE CREEK BASIN 7850 .0 .1 0* 1.4 -M * SOUTH BRUSH CREEK 8400 .3 .1 300* 1.6 .5 320 TOWER 10500 2.5 .5 500* 2.8 .8 350 WEBBER SPRINGS 9200 .3 .3 100* 1.6 .6 267 WILLOW CREEK PASS 9540 .0 .1 0* .6 .4 150 ----- ----- Basin wide percent of average 237* 293 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .6 .5 120* 1.3 .5 260 CASPER MTN. 7900 .0 .3 0* 1.0 .5 200 DEADMAN HILL 10220 .1 .5 20* .3 .5 60 DEER PARK 9700 .7 .5 140* .6 .5 120 LAPRELE CREEK 8320 -M .1 * -M .4 * RENO HILL 8400 .9 .3 300* 1.3 .5 260 ROACH 9700 .2 .1 200* .7 .5 140 SAND LAKE 10080 .8 .8 100* 1.4 .6 233 SOUTH PASS 9040 .3 .2 150* .7 .4 175 WINDY PEAK 7840 .2 .0 * .9 .3 300 ----- ----- Basin wide percent of average 112* 191 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100* 1.8 .4 450 DIVIDE PEAK 8800 .5 .4 125* 2.0 .5 400 OLD BATTLE 10000 2.3 .6 383* 2.5 .7 357 SANDSTONE RS 8150 .0 .0 100* 1.5 .5 300 WHISKEY PARK 8950 .6 .2 300* 1.7 .6 283 ----- ----- Basin wide percent of average 283* 352 UPPER GREEN RIVER BIG SANDY OPENING 9100 .8 .2 400* .7 .4 175 BLIND BULL SUM 8650 .4 .2 200* .7 .4 175 EAST RIM DIVIDE 7930 .2 .0 * .9 .3 300 ELKHART PARK G.S. 9400 1.1 .1 1100* 1.1 .4 275 GROS VENTRE SUMMIT 8775 .7 .3 233* .8 .4 200 KENDALL R.S. 7740 .2 .0 * .9 .3 300 LOOMIS PARK 8240 .2 .1 200* .9 .4 225 NEW FORK LAKE 8340 .1 .0 * .7 .3 233 SNIDER BASIN 8250 .1 .0 * .8 .3 267 SPRING CREEK DIVIDE 9000 .6 .1 600* .8 .5 160 TRIPLE PEAK 8500 .0 .1 0* 1.0 .4 250 ----- ----- Basin wide percent of average 345* 227 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100* .9 .3 300 HEWINTA 9500 .0 .2 0* .7 .5 140 HICKERSON PARK 9150 .2 .0 * 1.1 .3 367 HOLE-IN-ROCK 9150 .0 .0 100* .9 .3 300 INDIAN CREEK 9425 1.5 .2 750* 1.4 .5 280 KELLEY R.S. 8180 .2 .1 200* .7 .4 175 STEEL CREEK PARK 10100 .8 .5 160* .5 .5 100 ----- ----- Basin wide percent of average 250* 221 UPPER BEAR RIVER BUG LAKE 7950 .0 .3 0* .9 .5 180 HAYDEN FORK 9400 .0 .2 0* 1.2 .5 240 KELLEY R.S. 8180 .2 .1 200* .7 .4 175 LILY LAKE 9050 .0 .2 0* 1.3 .5 260 MONTE CRISTO 8960 -M .4 * .8 .6 133 SALT RIVER SUMMIT 7600 .1 .0 * .8 .4 200 TRIAL LAKE 9960 .7 .5 140* 1.4 .6 233 ----- ----- Basin wide percent of average 69* 203 ----------------------------------------------------------------------------- -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.