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 12 , 2011 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .1 .0 * 2.4 .7 343 COTTONWOOD CREEK 7670 .2 .0 * 3.6 .9 400 GRAND TARGHEE 9260 2.4 -M * 3.3 -M * GRANITE CREEK 6770 .1 .0 * 1.7 .6 283 GRASSY LAKE 7265 .5 .1 500* 4.0 1.1 364 GROS VENTRE SUMMIT 8750 .2 .4 50* 1.4 .7 200 GUNSIGHT PASS 9820 .9 -M * 1.7 -M * LEWIS LAKE DIVIDE 7850 1.1 .0 * 3.1 .9 344 PHILLIPS BENCH 8200 .0 .1 0* 1.6 .7 229 SALT RIVER SUMMIT 7760 -M .0 * -M .6 * SNAKE RIVER STATION 6920 .1 .0 * 2.4 .8 300 SPRING CREEK DIVIDE 9000 1.8 .2 900* 2.9 .7 414 THUMB DIVIDE 7980 .1 .1 100* 1.3 .7 186 TOGWOTEE PASS 9580 1.3 .8 163* 2.1 .9 233 TWO OCEAN PLATEAU 9240 2.6 .9 289* 2.5 1.0 250 WILLOW CREEK 8380 1.0 .3 333* 3.4 1.3 262 ----- ----- Basin wide percent of average 314* 295 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 .9 1.1 82* 1.2 .7 171 BLACK BEAR 8170 2.4 .6 400* 4.1 1.0 410 CANYON 7870 .0 .2 0* .9 .6 150 FISHER CREEK 9100 1.6 .8 200* 2.4 1.0 240 MADISON PLATEAU 7750 .0 .4 0* 3.2 .9 356 NORTHEAST ENTRANCE 7350 .0 .0 100* .8 .6 133 PARKER PEAK 9400 .9 1.0 90* 1.3 .9 144 SYLVAN LAKE 8420 1.0 .6 167* 2.4 .9 267 THUMB DIVIDE 7980 .1 .1 100* 1.3 .7 186 TWO OCEAN PLATEAU 9240 2.6 .9 289* 2.5 1.0 250 WHISKEY CREEK 6800 .0 .1 0* 2.8 .7 400 WHITE MILL 8700 1.3 .6 217* 1.8 .9 200 WOLVERINE 7650 .0 .1 0* .5 .7 71 ----- ----- Basin wide percent of average 166* 238 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 .6 217 DEER PARK 9700 1.0 .8 125* 2.0 .7 286 HOBBS PARK 10100 2.0 .7 286* 2.1 .7 300 LITTLE WARM 9370 .0 .3 0* 1.0 .6 167 SOUTH PASS 9040 1.4 .4 350* 2.0 .7 286 ST. LAWRENCE ALT 8620 .0 .1 0* .9 .6 150 TOGWOTEE PASS 9580 1.3 .8 163* 2.1 .9 233 TOWNSEND CREEK 8700 1.1 .3 367* 2.0 .8 250 ----- ----- Basin wide percent of average 197* 232 BIGHORN BASIN BALD MTN. 9380 2.5 1.4 179* 2.5 .9 278 BEAR TRAP MEADOW 8200 1.0 .2 500* 1.0 .6 167 BLACKWATER 9780 2.0 1.3 154* 1.9 .9 211 BONE SPRINGS DIV 9350 2.7 1.1 245* 3.0 1.0 300 EVENING STAR 9200 .9 1.0 90* 1.6 .9 178 GRAVE SPRINGS 8550 .9 .4 225* 1.4 .9 156 KIRWIN 9550 1.5 .8 188* 2.2 .6 367 MARQUETTE 8760 .6 -M * 2.3 .8 288 MIDDLE POWDER 7760 1.8 .5 360* 3.0 .9 333 OWL CREEK 8975 1.2 .4 300* 1.2 .4 300 POWDER RIVER PASS 9480 1.6 .4 400* 2.1 .7 300 SHELL CREEK 9580 3.0 1.5 200* 2.8 .8 350 SYLVAN LAKE 8420 1.0 .6 167* 2.4 .9 267 SYLVAN ROAD 7120 .0 .0 100* .8 .6 133 TIMBER CREEK 7950 .0 .1 0* 2.8 .6 467 YOUNTS PEAK 8350 .0 .5 0* 1.4 .7 200 ----- ----- Basin wide percent of average 197* 266 SHOSHONE RIVER BLACKWATER 9780 2.0 1.3 154* 1.9 .9 211 EVENING STAR 9200 .9 1.0 90* 1.6 .9 178 KIRWIN 9550 1.5 .8 188* 2.2 .6 367 MARQUETTE 8760 .6 -M * 2.3 .8 288 SYLVAN LAKE 8420 1.0 .6 167* 2.4 .9 267 SYLVAN ROAD 7120 .0 .0 100* .8 .6 133 YOUNTS PEAK 8350 .0 .5 0* 1.4 .7 200 ----- ----- Basin wide percent of average 129* 233 POWDER-TONGUE BEAR TRAP MEADOW 8200 1.0 .2 500* 1.0 .6 167 BIG GOOSE 7990 1.7 .3 567* 3.1 .8 388 BONE SPRINGS DIV 9350 2.7 1.1 245* 3.0 1.0 300 BURGESS JUNCTION 7880 1.6 .6 267* 3.2 .8 400 CLOUD PEAK RESERVOIR 9860 1.8 .3 600* 2.6 1.0 260 DOME LAKE 8880 2.1 .7 300* 3.2 .9 356 GRAVE SPRINGS 8550 .9 .4 225* 1.4 .9 156 HANSEN SAWMILL 8360 .0 .2 0* 1.3 .7 186 LITTLE GOOSE 8870 1.9 -M * 3.4 -M * MIDDLE POWDER 7760 1.8 .5 360* 3.0 .9 333 POWDER RIVER PASS 9480 1.6 .4 400* 2.1 .7 300 SOLDIER PARK 8720 .7 -M * 2.0 -M * SUCKER CREEK 8880 2.5 .5 500* 3.2 .9 356 TIE CREEK 6870 .0 .0 100* 3.7 1.0 370 ----- ----- Basin wide percent of average 340* 302 BELLE FOURCHE BLIND PARK 6890 .0 .0 100* .7 .9 78 COLE CANYON 5910 .0 .2 0* 1.2 .7 171 NORTH RAPID CREEK 6130 .0 .1 0* .4 .9 44 ----- ----- Basin wide percent of average 0* 92 UPPER N. PLATTE RIVER BLACKHALL MTN 9820 1.8 -M * 2.4 -M * CINNABAR PARK 9574 1.2 .2 600* 1.9 .7 271 COLUMBINE 9160 .1 .0 * 1.3 .7 186 DIVIDE PEAK 8880 .8 .6 133* 2.0 .9 222 ELK RIVER 8700 .0 .1 0* 1.4 .7 200 JOE WRIGHT 10120 .1 .6 17* 1.5 1.2 125 NORTH FRENCH CREEK 10130 1.6 1.1 145* 2.0 1.0 200 OLD BATTLE 10000 1.8 .9 200* 2.2 1.1 200 SAGE CREEK BASIN 7850 .0 .2 0* 1.3 .5 260 SOUTH BRUSH CREEK 8440 .1 .1 100* 1.6 .9 178 TOWER 10500 1.1 .7 157* 2.1 1.1 191 WEBBER SPRINGS 9250 1.0 .4 250* 2.1 1.0 210 WILLOW CREEK PASS 9540 .2 .2 100* .8 .7 114 ----- ----- Basin wide percent of average 157* 192 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 1.4 .7 200* 1.9 .8 238 CASPER MTN. 7900 2.6 .5 520* 3.4 .8 425 DEADMAN HILL 10220 .7 .7 100* 1.5 .9 167 DEER PARK 9700 1.0 .8 125* 2.0 .7 286 LAPRELE CREEK 8375 .4 .2 200* 1.7 .6 283 RENO HILL 8400 2.0 .6 333* 2.4 .8 300 ROACH 9700 1.5 .2 750* 1.9 .8 238 SAND LAKE 10050 1.9 1.1 173* 2.1 1.0 210 SOUTH PASS 9040 1.4 .4 350* 2.0 .7 286 WINDY PEAK 7900 .2 .1 200* 1.1 .6 183 ----- ----- Basin wide percent of average 247* 260 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100* 1.0 .6 167 DIVIDE PEAK 8880 .8 .6 133* 2.0 .9 222 OLD BATTLE 10000 1.8 .9 200* 2.2 1.1 200 SANDSTONE RS 8150 -M .0 * 1.0 .7 143 WHISKEY PARK 8950 .3 .4 75* 1.8 1.0 180 ----- ----- Basin wide percent of average 153* 186 UPPER GREEN RIVER BIG SANDY OPENING 9080 1.1 .3 367* 1.8 .6 300 BLIND BULL SUM 8650 1.3 .3 433* 1.3 .7 186 EAST RIM DIVIDE 7930 .3 .0 * 1.4 .5 280 ELKHART PARK G.S. 9400 1.0 .1 1000* 2.1 .7 300 GROS VENTRE SUMMIT 8750 .2 .4 50* 1.4 .7 200 GUNSIGHT PASS 9820 .9 -M * 1.7 -M * KENDALL R.S. 7740 .0 .0 100* 1.8 .5 360 LOOMIS PARK 8240 .1 .2 50* 1.7 .6 283 NEW FORK LAKE 8340 .3 .0 * 1.8 .5 360 POCKET CREEK 9360 1.6 -M * 2.3 -M * SNIDER BASIN 8060 .1 .1 100* 1.5 .5 300 SPRING CREEK DIVIDE 9000 1.8 .2 900* 2.9 .7 414 TRIPLE PEAK 8500 .3 .1 300* 2.2 .7 314 ----- ----- Basin wide percent of average 382* 297 LOWER GREEN RIVER HAMS FORK 7840 .2 .0 * 2.2 .5 440 HEWINTA 9519 .1 .3 33* 2.4 .8 300 HICKERSON PARK 9145 -M .0 * -M .6 * HOLE-IN-ROCK 9150 1.1 .0 * 2.6 .6 433 INDIAN CREEK 9425 2.2 .3 733* 2.5 .8 313 KELLEY R.S. 8180 .8 .1 800* 2.5 .7 357 STEEL CREEK PARK 10200 -M .6 * -M .8 * ----- ----- Basin wide percent of average 629* 359 UPPER BEAR RIVER BUG LAKE 7950 -M .4 * -M .8 * HAYDEN FORK 9212 .2 .3 67* 3.5 .8 438 KELLEY R.S. 8180 .8 .1 800* 2.5 .7 357 LILY LAKE 9156 .5 .4 125* 2.3 .8 288 MONTE CRISTO 8960 -M .6 * -M 1.0 * SALT RIVER SUMMIT 7760 -M .0 * -M .6 * TRIAL LAKE 9992 1.4 .7 200* 2.3 .9 256 ----- ----- Basin wide percent of average 193* 331 ----------------------------------------------------------------------------- -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.