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 SATURDAY: OCTOBER 15 , 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 .1 100* 2.3 .8 288 COTTONWOOD CREEK 7670 .0 .1 0* 3.6 1.2 300 GRAND TARGHEE 9260 2.3 -M * 3.8 -M * GRANITE CREEK 6770 .0 .1 0* 1.7 .7 243 GRASSY LAKE 7265 .1 .3 33* 4.0 1.4 286 GROS VENTRE SUMMIT 8750 .1 .6 17* 1.4 .8 175 GUNSIGHT PASS 9820 .7 -M * 1.9 -M * LEWIS LAKE DIVIDE 7850 .2 .1 200* 3.1 1.2 258 PHILLIPS BENCH 8200 .0 .2 0* 1.7 1.0 170 SALT RIVER SUMMIT 7760 .1 .0 * 1.8 .8 225 SNAKE RIVER STATION 6920 .0 .0 100* 2.5 1.0 250 SPRING CREEK DIVIDE 9000 1.6 .3 533* 3.0 .9 333 THUMB DIVIDE 7980 .0 .1 0* 1.5 .9 167 TOGWOTEE PASS 9580 1.2 1.0 120* 2.1 1.2 175 TWO OCEAN PLATEAU 9240 2.5 1.2 208* 2.6 1.3 200 WILLOW CREEK 8380 .1 .4 25* 3.4 1.6 213 ----- ----- Basin wide percent of average 133* 234 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 1.1 1.3 85* 1.6 .9 178 BLACK BEAR 8170 2.1 .8 263* 4.3 1.3 331 CANYON 7870 .0 .2 0* 1.5 .7 214 FISHER CREEK 9100 1.6 1.0 160* 2.8 1.3 215 MADISON PLATEAU 7750 .0 .4 0* 3.3 1.1 300 NORTHEAST ENTRANCE 7350 .0 .1 0* 1.1 .7 157 PARKER PEAK 9400 1.2 1.2 100* 1.7 1.1 155 SYLVAN LAKE 8420 .4 .9 44* 2.5 1.1 227 THUMB DIVIDE 7980 .0 .1 0* 1.5 .9 167 TWO OCEAN PLATEAU 9240 2.5 1.2 208* 2.6 1.3 200 WHISKEY CREEK 6800 .2 .1 200* 3.2 .9 356 WHITE MILL 8700 1.4 .7 200* 2.1 1.2 175 WOLVERINE 7650 .0 .1 0* .8 .9 89 ----- ----- Basin wide percent of average 130* 216 WIND RIVER BURROUGHS CREEK 8750 .2 .3 67* 1.2 .7 171 CASTLE CREEK 8400 .2 -M * 1.0 -M * COLD SPRINGS 9630 .2 .2 100* 1.5 .8 188 DEER PARK 9700 1.0 .8 125* 2.3 1.0 230 HOBBS PARK 10100 1.9 .7 271* 2.3 .9 256 LITTLE WARM 9370 .0 .4 0* 1.2 .8 150 SOUTH PASS 9040 1.1 .4 275* 2.1 .8 263 ST. LAWRENCE ALT 8620 .1 .1 100* 1.0 .8 125 TOGWOTEE PASS 9580 1.2 1.0 120* 2.1 1.2 175 TOWNSEND CREEK 8700 .9 .3 300* 2.2 1.0 220 ----- ----- Basin wide percent of average 157* 199 BIGHORN BASIN BALD MTN. 9380 2.5 1.5 167* 2.7 1.1 245 BEAR TRAP MEADOW 8200 .9 .2 450* 1.1 .8 138 BLACKWATER 9780 2.1 1.5 140* 2.2 1.2 183 BONE SPRINGS DIV 9350 2.6 1.3 200* 3.2 1.2 267 EVENING STAR 9200 1.0 1.2 83* 2.1 1.2 175 GRAVE SPRINGS 8550 .8 .2 400* 1.5 1.1 136 KIRWIN 9550 1.5 .8 188* 2.3 .8 288 MARQUETTE 8760 .3 -M * 2.5 1.1 227 MIDDLE POWDER 7760 1.4 .6 233* 3.1 1.2 258 OWL CREEK 8975 1.3 .3 433* 1.3 .5 260 POWDER RIVER PASS 9480 1.5 .5 300* 2.2 .9 244 SHELL CREEK 9580 3.1 1.6 194* 2.8 1.0 280 SYLVAN LAKE 8420 .4 .9 44* 2.5 1.1 227 SYLVAN ROAD 7120 .0 .1 0* 1.0 .7 143 TIMBER CREEK 7950 .0 .1 0* 2.8 .7 400 YOUNTS PEAK 8350 .0 .6 0* 1.4 .9 156 ----- ----- Basin wide percent of average 168* 224 SHOSHONE RIVER BLACKWATER 9780 2.1 1.5 140* 2.2 1.2 183 EVENING STAR 9200 1.0 1.2 83* 2.1 1.2 175 KIRWIN 9550 1.5 .8 188* 2.3 .8 288 MARQUETTE 8760 .3 -M * 2.5 1.1 227 SYLVAN LAKE 8420 .4 .9 44* 2.5 1.1 227 SYLVAN ROAD 7120 .0 .1 0* 1.0 .7 143 YOUNTS PEAK 8350 .0 .6 0* 1.4 .9 156 ----- ----- Basin wide percent of average 98* 200 POWDER-TONGUE BEAR TRAP MEADOW 8200 .9 .2 450* 1.1 .8 138 BIG GOOSE 7990 1.4 .3 467* 3.2 1.1 291 BONE SPRINGS DIV 9350 2.6 1.3 200* 3.2 1.2 267 BURGESS JUNCTION 7880 1.5 .6 250* 3.2 1.1 291 CLOUD PEAK RESERVOIR 9860 1.6 .4 400* 2.9 1.3 223 DOME LAKE 8880 2.0 .7 286* 3.4 1.2 283 GRAVE SPRINGS 8550 .8 .2 400* 1.5 1.1 136 HANSEN SAWMILL 8360 .1 .2 50* 1.4 .8 175 LITTLE GOOSE 8870 1.7 -M * 3.5 -M * MIDDLE POWDER 7760 1.4 .6 233* 3.1 1.2 258 POWDER RIVER PASS 9480 1.5 .5 300* 2.2 .9 244 SOLDIER PARK 8720 .6 -M * 2.1 -M * SUCKER CREEK 8880 2.4 .5 480* 3.2 1.2 267 TIE CREEK 6870 .1 .0 * 3.8 1.3 292 ----- ----- Basin wide percent of average 296* 244 BELLE FOURCHE BLIND PARK 6890 .0 .0 100* .7 1.1 64 COLE CANYON 5910 .0 .2 0* 1.2 .9 133 NORTH RAPID CREEK 6130 .0 .1 0* .4 1.2 33 ----- ----- Basin wide percent of average 0* 72 UPPER N. PLATTE RIVER BLACKHALL MTN 9820 1.5 -M * 2.5 -M * CINNABAR PARK 9574 1.0 .3 333* 1.9 .9 211 COLUMBINE 9160 .0 .0 100* 1.2 .9 133 DIVIDE PEAK 8880 .2 .7 29* 2.0 1.2 167 ELK RIVER 8700 .0 .1 0* 1.4 .9 156 JOE WRIGHT 10120 .0 .8 0* 1.5 1.5 100 NORTH FRENCH CREEK 10130 1.4 1.4 100* 2.0 1.3 154 OLD BATTLE 10000 1.7 1.1 155* 2.4 1.4 171 SAGE CREEK BASIN 7850 .0 .3 0* 1.3 .7 186 SOUTH BRUSH CREEK 8440 .1 .2 50* 1.6 1.1 145 TOWER 10500 .8 1.0 80* 2.1 1.5 140 WEBBER SPRINGS 9250 .5 .5 100* 2.1 1.3 162 WILLOW CREEK PASS 9540 .0 .3 0* 4.9 .9 544 ----- ----- Basin wide percent of average 85* 179 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .9 .9 100* 2.0 1.0 200 CASPER MTN. 7900 1.9 .6 317* 3.4 1.1 309 DEADMAN HILL 10220 .8 .9 89* 1.5 1.1 136 DEER PARK 9700 1.0 .8 125* 2.3 1.0 230 LAPRELE CREEK 8375 .1 .3 33* 1.8 .8 225 RENO HILL 8400 1.7 .7 243* 2.4 1.1 218 ROACH 9700 1.2 .3 400* 1.9 1.0 190 SAND LAKE 10050 1.9 1.3 146* 2.0 1.3 154 SOUTH PASS 9040 1.1 .4 275* 2.1 .8 263 WINDY PEAK 7900 .1 .1 100* 1.1 .8 138 ----- ----- Basin wide percent of average 170* 205 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100* 1.0 .7 143 DIVIDE PEAK 8880 .2 .7 29* 2.0 1.2 167 OLD BATTLE 10000 1.7 1.1 155* 2.4 1.4 171 SANDSTONE RS 8150 .0 .1 0* .9 .9 100 WHISKEY PARK 8950 .0 .5 0* 1.8 1.3 138 ----- ----- Basin wide percent of average 79* 147 UPPER GREEN RIVER BIG SANDY OPENING 9080 .9 .4 225* 1.8 .8 225 BLIND BULL SUM 8650 1.0 .4 250* 1.3 .9 144 EAST RIM DIVIDE 7930 .2 .0 * 1.4 .6 233 ELKHART PARK G.S. 9400 .9 .2 450* 2.2 .9 244 GROS VENTRE SUMMIT 8750 .1 .6 17* 1.4 .8 175 GUNSIGHT PASS 9820 .7 -M * 1.9 -M * KENDALL R.S. 7740 .1 .0 * 1.8 .7 257 LOOMIS PARK 8240 .1 .2 50* 1.6 .8 200 NEW FORK LAKE 8340 .1 .0 * 1.8 .7 257 POCKET CREEK 9360 1.3 -M * 2.4 -M * SNIDER BASIN 8060 .1 .1 100* 1.5 .6 250 SPRING CREEK DIVIDE 9000 1.6 .3 533* 3.0 .9 333 TRIPLE PEAK 8500 .1 .2 50* 2.2 .9 244 ----- ----- Basin wide percent of average 217* 233 LOWER GREEN RIVER HAMS FORK 7840 .1 .0 * 2.1 .6 350 HEWINTA 9519 .0 .4 0* 2.4 1.0 240 HICKERSON PARK 9145 -M .0 * -M .8 * HOLE-IN-ROCK 9150 .5 .0 * 2.7 .8 338 INDIAN CREEK 9425 2.0 .4 500* 2.8 1.0 280 KELLEY R.S. 8180 .3 .2 150* 2.5 .8 313 STEEL CREEK PARK 10200 -M .8 * -M 1.0 * ----- ----- Basin wide percent of average 290* 298 UPPER BEAR RIVER BUG LAKE 7950 .1 .5 20* 1.2 1.0 120 HAYDEN FORK 9212 .1 .4 25* 3.5 1.0 350 KELLEY R.S. 8180 .3 .2 150* 2.5 .8 313 LILY LAKE 9156 .0 .4 0* 2.3 1.0 230 MONTE CRISTO 8960 -M .7 * -M 1.2 * SALT RIVER SUMMIT 7760 .1 .0 * 1.8 .8 225 TRIAL LAKE 9992 1.0 .8 125* 2.2 1.2 183 ----- ----- Basin wide percent of average 70* 233 ----------------------------------------------------------------------------- -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.