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 13 , 2011 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .0 .1 0* 2.4 .7 343 COTTONWOOD CREEK 7670 .1 .0 * 3.6 1.0 360 GRAND TARGHEE 9260 2.4 -M * 3.5 -M * GRANITE CREEK 6770 .0 .0 100* 1.7 .6 283 GRASSY LAKE 7265 .1 .2 50* 3.9 1.2 325 GROS VENTRE SUMMIT 8750 .2 .5 40* 1.3 .7 186 GUNSIGHT PASS 9820 .8 -M * 1.6 -M * LEWIS LAKE DIVIDE 7850 .9 .0 * 3.1 1.0 310 PHILLIPS BENCH 8200 .0 .1 0* 1.6 .8 200 SALT RIVER SUMMIT 7760 -M .0 * -M .7 * SNAKE RIVER STATION 6920 .0 .0 100* 2.5 .8 313 SPRING CREEK DIVIDE 9000 1.7 .2 850* 2.8 .8 350 THUMB DIVIDE 7980 .0 .1 0* 1.4 .8 175 TOGWOTEE PASS 9580 1.2 .8 150* 2.1 1.0 210 TWO OCEAN PLATEAU 9240 2.5 1.0 250* 2.5 1.1 227 WILLOW CREEK 8380 .6 .3 200* 3.4 1.4 243 ----- ----- Basin wide percent of average 221* 271 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 .9 1.1 82* 1.3 .8 163 BLACK BEAR 8170 2.3 .7 329* 4.2 1.1 382 CANYON 7870 .0 .2 0* 1.0 .6 167 FISHER CREEK 9100 1.5 .8 188* 2.4 1.1 218 MADISON PLATEAU 7750 .0 .4 0* 3.2 1.0 320 NORTHEAST ENTRANCE 7350 .0 .0 100* .8 .6 133 PARKER PEAK 9400 1.0 1.0 100* 1.4 1.0 140 SYLVAN LAKE 8420 .9 .6 150* 2.4 1.0 240 THUMB DIVIDE 7980 .0 .1 0* 1.4 .8 175 TWO OCEAN PLATEAU 9240 2.5 1.0 250* 2.5 1.1 227 WHISKEY CREEK 6800 .0 .1 0* 2.9 .7 414 WHITE MILL 8700 1.3 .6 217* 1.8 1.0 180 WOLVERINE 7650 .0 .1 0* .7 .8 88 ----- ----- Basin wide percent of average 155* 224 WIND RIVER BURROUGHS CREEK 8750 .0 .2 0* 1.0 .6 167 CASTLE CREEK 8400 .0 -M * .9 -M * COLD SPRINGS 9630 .7 .2 350* 1.3 .7 186 DEER PARK 9700 1.0 .8 125* 2.1 .8 263 HOBBS PARK 10100 2.0 .7 286* 2.2 .8 275 LITTLE WARM 9370 .0 .3 0* .9 .7 129 SOUTH PASS 9040 1.3 .4 325* 2.0 .7 286 ST. LAWRENCE ALT 8620 .0 .1 0* .9 .7 129 TOGWOTEE PASS 9580 1.2 .8 150* 2.1 1.0 210 TOWNSEND CREEK 8700 1.0 .2 500* 2.0 .8 250 ----- ----- Basin wide percent of average 195* 213 BIGHORN BASIN BALD MTN. 9380 2.4 1.4 171* 2.5 1.0 250 BEAR TRAP MEADOW 8200 .9 .1 900* 1.0 .7 143 BLACKWATER 9780 2.0 1.3 154* 2.0 1.0 200 BONE SPRINGS DIV 9350 2.6 1.1 236* 3.0 1.1 273 EVENING STAR 9200 .9 1.0 90* 1.7 1.0 170 GRAVE SPRINGS 8550 .8 .3 267* 1.4 .9 156 KIRWIN 9550 1.5 .8 188* 2.1 .7 300 MARQUETTE 8760 .7 -M * 2.4 .9 267 MIDDLE POWDER 7760 1.5 .5 300* 3.1 1.0 310 OWL CREEK 8975 1.2 .4 300* 1.2 .5 240 POWDER RIVER PASS 9480 1.6 .4 400* 2.1 .8 263 SHELL CREEK 9580 3.0 1.5 200* 2.8 .8 350 SYLVAN LAKE 8420 .9 .6 150* 2.4 1.0 240 SYLVAN ROAD 7120 .0 .0 100* .9 .6 150 TIMBER CREEK 7950 .0 .1 0* 2.8 .6 467 YOUNTS PEAK 8350 .0 .5 0* 1.5 .7 214 ----- ----- Basin wide percent of average 193* 247 SHOSHONE RIVER BLACKWATER 9780 2.0 1.3 154* 2.0 1.0 200 EVENING STAR 9200 .9 1.0 90* 1.7 1.0 170 KIRWIN 9550 1.5 .8 188* 2.1 .7 300 MARQUETTE 8760 .7 -M * 2.4 .9 267 SYLVAN LAKE 8420 .9 .6 150* 2.4 1.0 240 SYLVAN ROAD 7120 .0 .0 100* .9 .6 150 YOUNTS PEAK 8350 .0 .5 0* 1.5 .7 214 ----- ----- Basin wide percent of average 126* 220 POWDER-TONGUE BEAR TRAP MEADOW 8200 .9 .1 900* 1.0 .7 143 BIG GOOSE 7990 1.5 .3 500* 3.1 .9 344 BONE SPRINGS DIV 9350 2.6 1.1 236* 3.0 1.1 273 BURGESS JUNCTION 7880 1.4 .6 233* 3.2 .9 356 CLOUD PEAK RESERVOIR 9860 1.8 .4 450* 2.7 1.1 245 DOME LAKE 8880 2.1 .7 300* 3.3 1.0 330 GRAVE SPRINGS 8550 .8 .3 267* 1.4 .9 156 HANSEN SAWMILL 8360 .0 .2 0* 1.3 .7 186 LITTLE GOOSE 8870 1.8 -M * 3.4 -M * MIDDLE POWDER 7760 1.5 .5 300* 3.1 1.0 310 POWDER RIVER PASS 9480 1.6 .4 400* 2.1 .8 263 SOLDIER PARK 8720 .5 -M * 2.0 -M * SUCKER CREEK 8880 2.4 .5 480* 3.1 1.0 310 TIE CREEK 6870 .0 .0 100* 3.7 1.1 336 ----- ----- Basin wide percent of average 325* 277 BELLE FOURCHE BLIND PARK 6890 .0 .0 100* .7 1.0 70 COLE CANYON 5910 .0 .2 0* 1.2 .7 171 NORTH RAPID CREEK 6130 .0 .1 0* .4 1.0 40 ----- ----- Basin wide percent of average 0* 85 UPPER N. PLATTE RIVER BLACKHALL MTN 9820 1.6 -M * 2.4 -M * CINNABAR PARK 9574 1.2 .2 600* 1.9 .8 238 COLUMBINE 9160 .0 .0 100* 1.1 .8 138 DIVIDE PEAK 8880 .6 .6 100* 1.9 1.0 190 ELK RIVER 8700 .0 .1 0* 1.4 .8 175 JOE WRIGHT 10120 -M .7 * -M 1.3 * NORTH FRENCH CREEK 10130 1.5 1.2 125* 2.0 1.1 182 OLD BATTLE 10000 1.7 1.0 170* 2.2 1.2 183 SAGE CREEK BASIN 7850 .0 .2 0* 1.3 .6 217 SOUTH BRUSH CREEK 8440 .1 .1 100* 1.5 .9 167 TOWER 10500 1.0 .8 125* 2.0 1.2 167 WEBBER SPRINGS 9250 .9 .4 225* 2.1 1.1 191 WILLOW CREEK PASS 9540 .6 .3 200* .7 .7 100 ----- ----- Basin wide percent of average 155* 177 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 1.2 .8 150* 2.0 .9 222 CASPER MTN. 7900 2.4 .5 480* 3.5 .9 389 DEADMAN HILL 10220 .8 .8 100* 1.5 .9 167 DEER PARK 9700 1.0 .8 125* 2.1 .8 263 LAPRELE CREEK 8375 .3 .2 150* 1.7 .7 243 RENO HILL 8400 1.9 .6 317* 2.3 .9 256 ROACH 9700 1.4 .2 700* 1.9 .9 211 SAND LAKE 10050 1.9 1.1 173* 2.1 1.1 191 SOUTH PASS 9040 1.3 .4 325* 2.0 .7 286 WINDY PEAK 7900 .2 .1 200* 1.1 .6 183 ----- ----- Basin wide percent of average 225* 240 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .1 .0 * .9 .6 150 DIVIDE PEAK 8880 .6 .6 100* 1.9 1.0 190 OLD BATTLE 10000 1.7 1.0 170* 2.2 1.2 183 SANDSTONE RS 8150 -M .0 * 1.0 .8 125 WHISKEY PARK 8950 .0 .4 0* 1.8 1.1 164 ----- ----- Basin wide percent of average 120* 166 UPPER GREEN RIVER BIG SANDY OPENING 9080 1.0 .3 333* 1.7 .7 243 BLIND BULL SUM 8650 1.3 .3 433* 1.3 .7 186 EAST RIM DIVIDE 7930 .2 .0 * 1.4 .5 280 ELKHART PARK G.S. 9400 1.0 .2 500* 2.1 .8 263 GROS VENTRE SUMMIT 8750 .2 .5 40* 1.3 .7 186 GUNSIGHT PASS 9820 .8 -M * 1.6 -M * KENDALL R.S. 7740 .0 .0 100* 1.7 .6 283 LOOMIS PARK 8240 .1 .2 50* 1.7 .7 243 NEW FORK LAKE 8340 .2 .0 * 1.8 .6 300 POCKET CREEK 9360 1.5 -M * 2.4 -M * SNIDER BASIN 8060 .1 .1 100* 1.5 .5 300 SPRING CREEK DIVIDE 9000 1.7 .2 850* 2.8 .8 350 TRIPLE PEAK 8500 .1 .2 50* 2.2 .8 275 ----- ----- Basin wide percent of average 295* 264 LOWER GREEN RIVER HAMS FORK 7840 .1 .0 * 2.1 .5 420 HEWINTA 9519 -M .3 * 2.3 .9 256 HICKERSON PARK 9145 -M .0 * -M .6 * HOLE-IN-ROCK 9150 .8 .0 * 2.6 .7 371 INDIAN CREEK 9425 2.1 .3 700* 2.6 .8 325 KELLEY R.S. 8180 .7 .1 700* 2.5 .7 357 STEEL CREEK PARK 10200 -M .7 * -M .8 * ----- ----- Basin wide percent of average 925* 336 UPPER BEAR RIVER BUG LAKE 7950 -M .4 * -M .9 * HAYDEN FORK 9212 .1 .3 33* 3.5 .9 389 KELLEY R.S. 8180 .7 .1 700* 2.5 .7 357 LILY LAKE 9156 -M .4 * 2.3 .9 256 MONTE CRISTO 8960 -M .6 * -M 1.0 * SALT RIVER SUMMIT 7760 -M .0 * -M .7 * TRIAL LAKE 9992 1.2 .7 171* 2.2 1.0 220 ----- ----- Basin wide percent of average 182* 300 ----------------------------------------------------------------------------- -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.