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 WEDNESDAY: OCTOBER 10 , 2007 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .1 .1 100* 1.6 .6 267 COTTONWOOD CREEK 7600 .1 .1 100* 1.7 .9 189 GRANITE CREEK 6770 .1 .1 100* 1.3 .5 260 GRASSY LAKE 7265 .2 .2 100* 1.6 1.0 160 GROS VENTRE SUMMIT 8750 .7 .4 175* 1.7 .6 283 LEWIS LAKE DIVIDE 7850 .2 .1 200* -M 1.0 * PHILLIPS BENCH 8200 .0 .1 0* 1.4 .7 200 SALT RIVER SUMMIT 7600 .2 .0 * 1.2 .6 200 SNAKE RIVER STATION 6920 .0 .0 100* 1.7 .7 243 SPRING CREEK DIVIDE 9000 .4 .2 200* 1.0 .8 125 THUMB DIVIDE 7980 .3 .1 300* 2.0 .6 333 TOGWOTEE PASS 9580 1.6 .6 267* 2.4 .8 300 TWO OCEAN PLATEAU 9240 2.4 .8 300* 2.7 .9 300 WILLOW CREEK 8450 .2 .3 67* 1.9 1.1 173 ----- ----- Basin wide percent of average 203* 227 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 1.9 1.0 190* 1.9 .6 317 BLACK BEAR 8170 1.2 .6 200* 2.2 1.0 220 CANYON 8090 .9 .2 450* 1.9 .6 317 FISHER CREEK 9100 2.9 .8 362* 3.1 1.0 310 MADISON PLATEAU 7750 1.1 .3 367* 2.1 .8 262 NORTHEAST ENTRANCE 7350 -M .1 * -M .5 * PARKER PEAK 9400 1.8 1.0 180* 2.3 .7 329 SYLVAN LAKE 8420 .9 .7 129* 2.2 .8 275 THUMB DIVIDE 7980 .3 .1 300* 2.0 .6 333 TWO OCEAN PLATEAU 9240 2.4 .8 300* 2.7 .9 300 WHISKEY CREEK 6800 .0 .1 0* 2.1 .7 300 WHITE MILL 8700 2.1 .5 420* 2.2 .8 275 WOLVERINE 7650 .0 .1 0* 1.5 .6 250 ----- ----- Basin wide percent of average 250* 288 WIND RIVER BURROUGHS CREEK 8750 .0 .3 0* 1.3 .5 260 COLD SPRINGS 9630 .0 .2 0* 1.4 .6 233 DEER PARK 9700 .8 .6 133* 2.0 .8 250 HOBBS PARK 10100 .7 .6 117* 2.1 .6 350 LITTLE WARM 9370 .0 .3 0* 1.2 .5 240 SOUTH PASS 9040 .0 .3 0* 1.3 .6 217 ST. LAWRENCE ALT 8620 .0 .1 0* 1.0 .5 200 TOGWOTEE PASS 9580 1.6 .6 267* 2.4 .8 300 TOWNSEND CREEK 8700 .4 .2 200* 1.6 .6 267 ----- ----- Basin wide percent of average 109* 260 BIGHORN BASIN BALD MTN. 9380 1.3 1.2 108* 2.1 .7 300 BEAR TRAP MEADOW 8200 .0 .2 0* .7 .5 140 BLACKWATER 9780 1.9 1.2 158* 2.2 .8 275 BONE SPRINGS DIV 9350 1.4 1.0 140* 2.0 .8 250 EVENING STAR 9200 1.9 .9 211* 2.5 .8 312 GRAVE SPRINGS 8550 .1 .2 50* 1.1 .6 183 KIRWIN 9550 1.8 .7 257* 2.6 .6 433 MARQUETTE 8760 .0 .7 0* 1.3 .7 186 MIDDLE POWDER 7760 .0 .5 0* .9 .8 112 OWL CREEK 8975 .7 .3 233* 1.5 .3 500 POWDER RIVER PASS 9480 .4 .4 100* 1.6 .6 267 SHELL CREEK 9580 1.7 1.3 131* 2.4 .6 400 SYLVAN LAKE 8420 .9 .7 129* 2.2 .8 275 SYLVAN ROAD 7120 .2 .1 200* 2.0 .6 333 TIMBER CREEK 7950 .8 .1 800* 2.0 .5 400 YOUNTS PEAK 8350 .9 .4 225* 2.0 .6 333 ----- ----- Basin wide percent of average 141* 283 SHOSHONE RIVER BLACKWATER 9780 1.9 1.2 158* 2.2 .8 275 EVENING STAR 9200 1.9 .9 211* 2.5 .8 312 KIRWIN 9550 1.8 .7 257* 2.6 .6 433 MARQUETTE 8760 .0 .7 0* 1.3 .7 186 SYLVAN LAKE 8420 .9 .7 129* 2.2 .8 275 SYLVAN ROAD 7120 .2 .1 200* 2.0 .6 333 YOUNTS PEAK 8350 .9 .4 225* 2.0 .6 333 ----- ----- Basin wide percent of average 162* 302 POWDER-TONGUE BEAR TRAP MEADOW 8200 .0 .2 0* .7 .5 140 BIG GOOSE 7990 .3 .2 150* 1.3 .6 217 BONE SPRINGS DIV 9350 1.4 1.0 140* 2.0 .8 250 BURGESS JUNCTION 7880 .0 .5 0* 1.1 .7 157 CLOUD PEAK RESERVOIR 9860 .0 .3 0* 1.7 .8 212 DOME LAKE 8880 .4 .6 67* 1.8 .8 225 GRAVE SPRINGS 8550 .1 .2 50* 1.1 .6 183 HANSEN SAWMILL 8360 .0 .2 0* 1.2 .6 200 MIDDLE POWDER 7760 .0 .5 0* .9 .8 112 POWDER RIVER PASS 9480 .4 .4 100* 1.6 .6 267 SUCKER CREEK 8880 .0 .4 0* 1.2 .7 171 TIE CREEK 6870 .0 .0 100* 1.0 .8 125 ----- ----- Basin wide percent of average 58* 188 BELLE FOURCHE BLIND PARK 6890 .0 .0 100* .7 .8 87 COLE CANYON 5910 .0 .0 100* .6 -M * NORTH RAPID CREEK 6130 .0 .1 0* .6 .8 75 ----- ----- Basin wide percent of average 0* 81 UPPER N. PLATTE RIVER COLUMBINE 9160 .0 .0 100* 1.5 .7 214 DIVIDE PEAK 8860 -M .5 * -M .8 * ELK RIVER 8700 .0 .1 0* 1.1 .7 157 JOE WRIGHT 10120 .2 .6 33* 1.5 1.0 150 NORTH FRENCH CREEK 10130 .3 .9 33* 1.3 1.0 130 OLD BATTLE 9920 .8 .8 100* 2.0 1.1 182 SAGE CREEK BASIN 7850 .0 .2 0* 1.0 .5 200 SOUTH BRUSH CREEK 8440 .1 .1 100* 1.2 .8 150 TOWER 10500 .1 .7 14* 2.2 1.2 183 WEBBER SPRINGS 9250 .0 .4 0* 1.3 .9 144 WILLOW CREEK PASS 9540 .1 .2 50* .7 .6 117 ----- ----- Basin wide percent of average 40* 162 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 .0 .6 0* .7 .8 87 CASPER MTN. 7850 .1 .4 25* 1.0 .8 125 DEADMAN HILL 10220 1.5 .6 250* .6 .8 75 DEER PARK 9700 .8 .6 133* 2.0 .8 250 LAPRELE CREEK 8375 .0 .2 0* .7 .6 117 RENO HILL 8500 .3 .4 75* 1.1 .8 138 ROACH 9700 .1 .2 50* .9 .7 129 SAND LAKE 10050 .7 1.0 70* 1.1 .9 122 SOUTH PASS 9040 .0 .3 0* 1.3 .6 217 WINDY PEAK 7900 .0 .1 0* .3 .5 60 ----- ----- Basin wide percent of average 80* 133 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 -M .0 * .9 .6 150 DIVIDE PEAK 8860 -M .5 * -M .8 * OLD BATTLE 9920 .8 .8 100* 2.0 1.1 182 SANDSTONE RS 8150 .0 .1 0* .8 .7 114 WHISKEY PARK 8950 .0 .3 0* 1.2 .9 133 ----- ----- Basin wide percent of average 67* 148 UPPER GREEN RIVER BIG SANDY OPENING 9080 .1 .3 33* 1.1 .6 183 BLIND BULL SUM 8900 .4 .3 133* .9 .7 129 EAST RIM DIVIDE 7930 .0 .0 100* 1.1 .4 275 ELKHART PARK G.S. 9400 .4 .1 400* 1.3 .6 217 GROS VENTRE SUMMIT 8750 .7 .4 175* 1.7 .6 283 KENDALL R.S. 7740 .0 .0 100* 1.0 .5 200 LOOMIS PARK 8240 .0 .1 0* 1.1 .6 183 NEW FORK LAKE 8340 .0 .0 100* 1.3 .5 260 SNIDER BASIN 8060 .3 .1 300* .4 .5 80 SPRING CREEK DIVIDE 9000 .4 .2 200* 1.0 .8 125 TRIPLE PEAK 8500 .1 .1 100* .9 .7 129 ----- ----- Basin wide percent of average 150* 182 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100* .8 .4 200 HEWINTA 9500 .0 .3 0* 2.8 .7 400 HICKERSON PARK 9100 .1 .0 * 2.3 .5 460 HOLE-IN-ROCK 9150 .0 .0 100* 2.3 .5 460 INDIAN CREEK 9425 .8 .3 267* 1.1 .8 138 KELLEY R.S. 8180 .6 .1 600* 1.5 .6 250 STEEL CREEK PARK 10100 2.4 .6 400* 2.8 .7 400 ----- ----- Basin wide percent of average 292* 324 UPPER BEAR RIVER BUG LAKE 7950 .1 .4 25* .8 .7 114 HAYDEN FORK 9100 .1 .3 33* 1.4 .7 200 KELLEY R.S. 8180 .6 .1 600* 1.5 .6 250 LILY LAKE 9050 -M .3 * -M .7 * MONTE CRISTO 8960 .0 .5 0* 1.8 .8 225 SALT RIVER SUMMIT 7600 .2 .0 * 1.2 .6 200 TRIAL LAKE 9960 .1 .6 17* .9 .8 112 ----- ----- Basin wide percent of average 47* 181 ----------------------------------------------------------------------------- -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.