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 TUESDAY: OCTOBER 11 , 2011 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .2 .0 * 1.8 .6 300 COTTONWOOD CREEK 7670 .4 .0 * 2.5 .9 278 GRAND TARGHEE 9260 1.8 -M * 2.7 -M * GRANITE CREEK 6770 .1 .0 * 1.1 .5 220 GRASSY LAKE 7265 .8 .1 800* 2.8 1.0 280 GROS VENTRE SUMMIT 8750 .1 .4 25* 1.5 .6 250 GUNSIGHT PASS 9820 .5 -M * 1.5 -M * LEWIS LAKE DIVIDE 7850 .5 .0 * 1.7 .8 213 PHILLIPS BENCH 8200 .0 .0 100* .9 .7 129 SALT RIVER SUMMIT 7760 .3 .0 * 1.5 .6 250 SNAKE RIVER STATION 6920 .1 .0 * 1.7 .7 243 SPRING CREEK DIVIDE 9000 1.2 .1 1200* 2.2 .7 314 THUMB DIVIDE 7980 .1 .0 * 1.0 .6 167 TOGWOTEE PASS 9580 .8 .7 114* 1.7 .9 189 TWO OCEAN PLATEAU 9240 1.7 .8 213* 1.8 .9 200 WILLOW CREEK 8380 1.0 .2 500* 2.6 1.1 236 ----- ----- Basin wide percent of average 317* 234 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 .7 1.0 70* 1.1 .6 183 BLACK BEAR 8170 1.8 .6 300* 3.2 .9 356 CANYON 7870 .0 .2 0* .8 .5 160 FISHER CREEK 9100 .9 .7 129* 1.8 .9 200 MADISON PLATEAU 7750 .3 .4 75* 2.7 .8 338 NORTHEAST ENTRANCE 7350 .2 .0 * .6 .5 120 PARKER PEAK 9400 .7 1.0 70* 1.1 .8 138 SYLVAN LAKE 8420 .5 .6 83* 1.7 .8 213 THUMB DIVIDE 7980 .1 .0 * 1.0 .6 167 TWO OCEAN PLATEAU 9240 1.7 .8 213* 1.8 .9 200 WHISKEY CREEK 6800 .0 .1 0* 2.2 .6 367 WHITE MILL 8700 .8 .5 160* 1.2 .8 150 WOLVERINE 7650 .0 .1 0* .5 .6 83 ----- ----- Basin wide percent of average 128* 212 WIND RIVER BURROUGHS CREEK 8750 .1 .2 50* .9 .5 180 CASTLE CREEK 8400 .2 -M * .9 -M * COLD SPRINGS 9630 .7 .2 350* 1.3 .6 217 DEER PARK 9700 1.0 .7 143* 2.0 .7 286 HOBBS PARK 10100 2.0 .7 286* 2.1 .7 300 LITTLE WARM 9370 .3 .3 100* .9 .5 180 SOUTH PASS 9040 1.4 .4 350* 2.0 .6 333 ST. LAWRENCE ALT 8620 .1 .1 100* .9 .5 180 TOGWOTEE PASS 9580 .8 .7 114* 1.7 .9 189 TOWNSEND CREEK 8700 1.2 .3 400* 2.0 .7 286 ----- ----- Basin wide percent of average 211* 242 BIGHORN BASIN BALD MTN. 9380 2.3 1.3 177* 2.4 .8 300 BEAR TRAP MEADOW 8200 .9 .2 450* 1.0 .6 167 BLACKWATER 9780 .9 1.3 69* 1.1 .8 138 BONE SPRINGS DIV 9350 2.6 1.1 236* 2.9 .9 322 EVENING STAR 9200 .4 1.0 40* 1.1 .8 138 GRAVE SPRINGS 8550 .8 .4 200* 1.3 .8 163 KIRWIN 9550 1.4 .8 175* 2.0 .6 333 MARQUETTE 8760 .5 -M * 2.1 .7 300 MIDDLE POWDER 7760 1.8 .5 360* 3.0 .8 375 OWL CREEK 8975 1.3 .4 325* 1.3 .4 325 POWDER RIVER PASS 9480 1.5 .4 375* 1.9 .7 271 SHELL CREEK 9580 2.8 1.4 200* 2.7 .7 386 SYLVAN LAKE 8420 .5 .6 83* 1.7 .8 213 SYLVAN ROAD 7120 .2 .0 * .1 .5 20 TIMBER CREEK 7950 .2 .1 200* 2.7 .5 540 YOUNTS PEAK 8350 .2 .5 40* 1.1 .6 183 ----- ----- Basin wide percent of average 178* 258 SHOSHONE RIVER BLACKWATER 9780 .9 1.3 69* 1.1 .8 138 EVENING STAR 9200 .4 1.0 40* 1.1 .8 138 KIRWIN 9550 1.4 .8 175* 2.0 .6 333 MARQUETTE 8760 .5 -M * 2.1 .7 300 SYLVAN LAKE 8420 .5 .6 83* 1.7 .8 213 SYLVAN ROAD 7120 .2 .0 * .1 .5 20 YOUNTS PEAK 8350 .2 .5 40* 1.1 .6 183 ----- ----- Basin wide percent of average 86* 192 POWDER-TONGUE BEAR TRAP MEADOW 8200 .9 .2 450* 1.0 .6 167 BIG GOOSE 7990 1.7 .2 850* 3.1 .8 388 BONE SPRINGS DIV 9350 2.6 1.1 236* 2.9 .9 322 BURGESS JUNCTION 7880 1.6 .6 267* 3.2 .8 400 CLOUD PEAK RESERVOIR 9860 1.7 .4 425* 2.6 .9 289 DOME LAKE 8880 2.1 .7 300* 3.2 .8 400 GRAVE SPRINGS 8550 .8 .4 200* 1.3 .8 163 HANSEN SAWMILL 8360 -M .2 * 1.3 .6 217 LITTLE GOOSE 8870 1.9 -M * 3.4 -M * MIDDLE POWDER 7760 1.8 .5 360* 3.0 .8 375 POWDER RIVER PASS 9480 1.5 .4 375* 1.9 .7 271 SOLDIER PARK 8720 .8 -M * 2.0 -M * SUCKER CREEK 8880 2.5 .5 500* 3.2 .8 400 TIE CREEK 6870 .0 .0 100* 3.7 .9 411 ----- ----- Basin wide percent of average 344* 323 BELLE FOURCHE BLIND PARK 6890 .0 .1 0* .6 .8 75 COLE CANYON 5910 .0 .2 0* 1.2 .6 200 NORTH RAPID CREEK 6130 .2 .1 200* .4 .8 50 ----- ----- Basin wide percent of average 50* 100 UPPER N. PLATTE RIVER BLACKHALL MTN 9820 1.3 -M * 2.0 -M * CINNABAR PARK 9574 .7 .1 700* 1.3 .6 217 COLUMBINE 9160 .1 .0 * .8 .6 133 DIVIDE PEAK 8880 .9 .5 180* 1.6 .8 200 ELK RIVER 8700 .0 .1 0* 1.2 .6 200 JOE WRIGHT 10120 .0 .5 0* 1.0 1.1 91 NORTH FRENCH CREEK 10130 .7 1.0 70* 1.2 .9 133 OLD BATTLE 10000 1.2 .8 150* 1.5 1.0 150 SAGE CREEK BASIN 7850 .0 .1 0* 1.0 .5 200 SOUTH BRUSH CREEK 8440 .2 .1 200* 1.2 .8 150 TOWER 10500 .3 .7 43* 1.4 1.0 140 WEBBER SPRINGS 9250 .8 .4 200* 1.7 .9 189 WILLOW CREEK PASS 9540 .2 .2 100* .7 .6 117 ----- ----- Basin wide percent of average 113* 155 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .7 .7 100* 1.3 .7 186 CASPER MTN. 7900 2.8 .4 700* -M .7 * DEADMAN HILL 10220 .6 .7 86* 1.4 .8 175 DEER PARK 9700 1.0 .7 143* 2.0 .7 286 LAPRELE CREEK 8375 .7 .2 350* 1.7 .5 340 RENO HILL 8400 2.0 .5 400* 2.3 .7 329 ROACH 9700 1.2 .2 600* 1.6 .7 229 SAND LAKE 10050 1.5 1.0 150* 1.7 .9 189 SOUTH PASS 9040 1.4 .4 350* 2.0 .6 333 WINDY PEAK 7900 .6 .1 600* 1.1 .5 220 ----- ----- Basin wide percent of average 255* 248 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .1 .0 * .8 .5 160 DIVIDE PEAK 8880 .9 .5 180* 1.6 .8 200 OLD BATTLE 10000 1.2 .8 150* 1.5 1.0 150 SANDSTONE RS 8150 .0 .0 100* .6 .6 100 WHISKEY PARK 8950 .1 .4 25* 1.2 .9 133 ----- ----- Basin wide percent of average 135* 150 UPPER GREEN RIVER BIG SANDY OPENING 9080 1.0 .3 333* 1.6 .6 267 BLIND BULL SUM 8650 1.0 .2 500* 1.0 .6 167 EAST RIM DIVIDE 7930 .2 .0 * 1.2 .4 300 ELKHART PARK G.S. 9400 .8 .1 800* 1.9 .6 317 GROS VENTRE SUMMIT 8750 .1 .4 25* 1.5 .6 250 GUNSIGHT PASS 9820 .5 -M * 1.5 -M * KENDALL R.S. 7740 .1 .0 * 1.5 .5 300 LOOMIS PARK 8240 .1 .1 100* 1.2 .6 200 NEW FORK LAKE 8340 .4 .0 * 1.7 .5 340 POCKET CREEK 9360 1.5 -M * 2.2 -M * SNIDER BASIN 8060 .1 .1 100* 1.2 .4 300 SPRING CREEK DIVIDE 9000 1.2 .1 1200* 2.2 .7 314 TRIPLE PEAK 8500 .2 .1 200* 1.6 .7 229 ----- ----- Basin wide percent of average 371* 268 LOWER GREEN RIVER HAMS FORK 7840 .2 .0 * 1.6 .4 400 HEWINTA 9519 .5 .3 167* 2.3 .7 329 HICKERSON PARK 9145 -M .0 * -M .5 * HOLE-IN-ROCK 9150 1.3 .0 * 2.6 .5 520 INDIAN CREEK 9425 1.5 .3 500* 2.1 .7 300 KELLEY R.S. 8180 1.1 .1 1100* 2.1 .6 350 STEEL CREEK PARK 10200 -M .6 * -M .7 * ----- ----- Basin wide percent of average 657* 369 UPPER BEAR RIVER BUG LAKE 7950 -M .4 * -M .7 * HAYDEN FORK 9212 -M .3 * -M .7 * KELLEY R.S. 8180 1.1 .1 1100* 2.1 .6 350 LILY LAKE 9156 .8 .3 267* 2.3 .7 329 MONTE CRISTO 8960 -M .5 * -M .9 * SALT RIVER SUMMIT 7760 .3 .0 * 1.5 .6 250 TRIAL LAKE 9992 1.2 .6 200* 2.1 .8 263 ----- ----- Basin wide percent of average 340* 296 ----------------------------------------------------------------------------- -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.