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 15 , 2013 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 .0 .0 * 1.4 .9 156 BLACK BEAR 8170 1.6 1.0 160* 1.9 1.8 106 BLIND BULL SUM 8650 .6 .2 300* 1.4 1.0 140 COTTONWOOD CREEK 7670 .6 .0 * 1.6 1.2 133 EAST RIM DIVIDE 7930 .2 .0 * 1.1 .6 183 GRAND TARGHEE 9260 2.3 1.5 153* 2.5 2.6 96 GRANITE CREEK 6770 .1 .0 * 1.0 .8 125 GRASSY LAKE 7265 .1 .0 * 1.5 1.6 94 GROS VENTRE SUMMIT 8750 2.1 .6 350* 1.9 .8 238 GUNSIGHT PASS 9820 2.1 .0 * 2.2 1.1 200 LEWIS LAKE DIVIDE 7850 .3 .0 * 1.3 1.4 93 PHILLIPS BENCH 8200 .4 .0 * 1.3 1.1 118 SALT RIVER SUMMIT 7760 .0 .0 * 1.4 .8 175 SNAKE RIVER STATION 6920 .2 .0 * 1.0 1.2 83 SPRING CREEK DIVIDE 9000 .5 .0 * 1.1 .9 122 THUMB DIVIDE 7980 .3 .0 * 1.1 1.1 100 TOGWOTEE PASS 9580 3.3 1.2 275* 2.2 1.2 183 TWO OCEAN PLATEAU 9240 3.2 1.3 246* 2.2 1.4 157 WILLOW CREEK 8380 .4 .0 * 2.5 1.6 156 YOUNTS PEAK 8350 -M .4 * -M 1.0 * ----- ----- Basin Index (%) 316* 132 MADISON-GALLATIN BLACK BEAR 8170 1.6 1.0 160* 1.9 1.8 106 CANYON 7870 1.0 .0 * 1.6 1.0 160 MADISON PLATEAU 7750 .4 .3 133* 1.7 1.3 131 WEST YELLOWSTONE 6700 .1 .0 * 1.2 1.0 120 WHISKEY CREEK 6800 .2 .0 * 1.3 1.1 118 ----- ----- Basin Index (%) 254* 124 YELLOWSTONE BEARTOOTH LAKE 9360 2.0 1.1 182* .8 1.0 80 BURNT MTN 5880 -M .0 * 4.3 2.3 187 CANYON 7870 1.0 .0 * 1.6 1.0 160 COLE CREEK 7850 3.6 1.1 327* 3.1 1.6 194 EVENING STAR 9200 2.8 .9 311* 2.0 1.5 133 FISHER CREEK 9100 2.8 1.1 255* 1.5 1.6 94 NORTHEAST ENTRANCE 7350 .1 .0 * .7 .9 78 PARKER PEAK 9400 2.7 1.1 245* 1.8 1.4 129 SYLVAN LAKE 8420 1.1 .4 275* 1.9 1.6 119 THUMB DIVIDE 7980 .3 .0 * 1.1 1.1 100 TWO OCEAN PLATEAU 9240 3.2 1.3 246* 2.2 1.4 157 WHITE MILL 8700 2.0 .9 222* 1.0 1.3 77 WOLVERINE 7650 .0 .0 * 1.0 .9 111 ----- ----- Basin Index (%) 273* 131 WIND RIVER BURROUGHS CREEK 8750 -M .0 * -M .9 * CASTLE CREEK 8400 .4 -M * 1.7 -M * COLD SPRINGS 9630 2.4 .0 * -M .9 * DEER PARK 9700 2.0 .6 333* 2.3 1.5 153 HOBBS PARK 10100 3.4 .6 567* 3.2 1.0 320 KIRWIN 9550 3.2 .6 533* 2.4 .9 267 LITTLE WARM 9370 2.4 .2 1200* 2.9 .9 322 OWL CREEK 8975 1.2 .0 * 1.6 .7 229 SOUTH PASS 9040 1.4 .0 * 2.1 1.0 210 ST. LAWRENCE ALT 8620 1.1 .0 * 2.7 .8 338 TOGWOTEE PASS 9580 3.3 1.2 275* 2.2 1.2 183 TOWNSEND CREEK 8700 -M .0 * -M 1.0 * ----- ----- Basin Index (%) 638* 242 BIGHORN BASIN BALD MTN. 9380 3.9 1.6 244* 2.6 1.4 186 BEAR TRAP MEADOW 8200 1.7 .0 * 2.7 .8 338 BONE SPRINGS DIV 9350 2.6 1.3 200* 2.0 1.4 143 GRAVE SPRINGS 8550 2.7 .0 * 3.3 1.2 275 KIRWIN 9550 3.2 .6 533* 2.4 .9 267 MARQUETTE 8760 3.5 -M * 4.0 -M * MIDDLE POWDER 7760 -M .3 * 3.8 1.2 317 OWL CREEK 8975 1.2 .0 * 1.6 .7 229 POWDER RIVER PASS 9480 2.4 .2 1200* 2.4 1.1 218 SHELL CREEK 9580 3.0 1.5 200* 2.0 1.2 167 TIMBER CREEK 7950 1.7 .0 * 3.0 1.0 300 ----- ----- Basin Index (%) 431* 237 SHOSHONE RIVER BLACKWATER 9780 4.2 1.2 350* 2.1 1.4 150 EVENING STAR 9200 2.8 .9 311* 2.0 1.5 133 MARQUETTE 8760 3.5 -M * 4.0 -M * SYLVAN ROAD 7120 .2 .0 * 1.9 1.1 173 YOUNTS PEAK 8350 -M .4 * -M 1.0 * ----- ----- Basin Index (%) 343* 150 POWDER RIVER BEAR TRAP MEADOW 8200 1.7 .0 * 2.7 .8 338 CLOUD PEAK RESERVOIR 9860 2.9 .5 580* 3.5 1.4 250 GRAVE SPRINGS 8550 2.7 .0 * 3.3 1.2 275 HANSEN SAWMILL 8360 1.9 .0 * 3.0 .9 333 MIDDLE POWDER 7760 -M .3 * 3.8 1.2 317 POWDER RIVER PASS 9480 2.4 .2 1200* 2.4 1.1 218 SOLDIER PARK 8720 1.5 -M * 2.9 -M * ----- ----- Basin Index (%) 1657* 283 TONGUE RIVER BIG GOOSE 7990 2.4 .2 1200* 3.5 1.4 250 BONE SPRINGS DIV 9350 2.6 1.3 200* 2.0 1.4 143 BURGESS JUNCTION 7880 2.4 .4 600* 3.1 1.2 258 DOME LAKE 8880 2.3 .7 329* 3.2 1.3 246 LITTLE GOOSE 8870 3.0 -M * 4.2 -M * SUCKER CREEK 8880 3.4 .5 680* 3.8 1.3 292 TIE CREEK 6870 1.4 .0 * 3.6 1.5 240 ----- ----- Basin Index (%) 468* 237 BELLE FOURCHE COLE CANYON 5910 -M .0 * -M 1.2 * ----- ----- Basin Index (%) * * CHEYENNE RIVER BASIN BLIND PARK 6890 -M .0 * 6.1 1.1 555 NORTH RAPID CREEK 6130 4.1 .0 * -M 1.0 * ----- ----- Basin Index (%) * 555 UPPER N. PLATTE ARAPAHO RIDGE 10960 1.9 .7 271* 2.6 1.5 173 BLACKHALL MTN 9820 3.1 -M * 4.1 -M * COLUMBINE 9160 1.2 .0 * 2.8 1.3 215 DIVIDE PEAK 8880 2.4 .0 * 4.4 1.6 275 JOE WRIGHT 10120 .9 .5 180* 3.6 1.6 225 LAPRELE CREEK 8375 .4 .0 * 2.3 .9 256 MED BOW 10500 3.6 -M * 4.3 -M * NORTH FRENCH CREEK 10130 -M .6 * -M 1.5 * NEVER SUMMER 10280 1.9 .6 317* 2.5 -M * OLD BATTLE 10000 3.2 .8 400* 3.6 2.0 180 RAWAH 9020 1.3 .0 * 3.5 1.2 292 SAGE CREEK BASIN 7850 .7 .0 * 2.7 1.1 245 SAND LAKE 10050 3.4 .8 425* 3.9 1.5 260 SOUTH BRUSH CREEK 8440 2.0 .0 * -M 1.1 * TOWER 10500 4.6 1.0 460* 4.9 2.0 245 WEBBER SPRINGS 9250 1.4 .0 * 3.1 1.5 207 WILLOW CREEK PASS 9540 1.3 .1 1300* 1.8 .8 225 ZIRKEL 9340 -M .0 * 2.5 2.1 119 ----- ----- Basin Index (%) 591* 218 SWEETWATER DEER PARK 9700 2.0 .6 333* 2.3 1.5 153 LARSEN CREEK 9000 .4 -M * 1.8 -M * SOUTH PASS 9040 1.4 .0 * 2.1 1.0 210 ----- ----- Basin Index (%) 567* 176 LOWER N. PLATTE CASPER MTN. 7900 -M .1 * -M 1.2 * LAPRELE CREEK 8375 .4 .0 * 2.3 .9 256 RENO HILL 8400 -M .0 * -M 1.1 * WINDY PEAK 7900 .2 .0 * 2.2 .8 275 ----- ----- Basin Index (%) * 265 LARAMIE RIVER BROOKLYN LAKE 10240 1.3 .0 * 2.1 1.0 210 CINNABAR PARK 9574 1.6 .0 * 2.9 1.3 223 CROW CREEK 8330 .3 .0 * 2.1 1.1 191 DEADMAN HILL 10220 1.8 .6 300* 2.6 1.1 236 RAWAH 9020 1.3 .0 * 3.5 1.2 292 ROACH 9700 -M .0 * -M 1.1 * ----- ----- Basin Index (%) 1050* 232 S. PLATTE BLACK MOUNTAIN 8920 .8 -M * 1.9 -M * CROW CREEK 8330 .3 .0 * 2.1 1.1 191 DEADMAN HILL 10220 1.8 .6 300* 2.6 1.1 236 ----- ----- Basin Index (%) 350* 214 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 -M .0 * 2.9 .9 322 DIVIDE PEAK 8880 2.4 .0 * 4.4 1.6 275 ELK RIVER 8700 .8 .0 * 2.6 1.3 200 LITTLE SNAKE RIVER 8915 2.0 .0 * 4.1 2.1 195 OLD BATTLE 10000 3.2 .8 400* 3.6 2.0 180 SAGE CREEK BASIN 7850 .7 .0 * 2.7 1.1 245 SANDSTONE RS 8150 1.5 .0 * 3.0 1.0 300 WHISKEY PARK 8950 -M .0 * 4.6 1.4 329 ----- ----- Basin Index (%) 1325* 245 UPPER GREEN RIVER BIG SANDY OPENING 9080 1.2 .2 600* 1.4 .8 175 BLIND BULL SUM 8650 .6 .2 300* 1.4 1.0 140 EAST RIM DIVIDE 7930 .2 .0 * 1.1 .6 183 ELKHART PARK G.S. 9400 1.1 .0 * 1.5 .9 167 GROS VENTRE SUMMIT 8750 2.1 .6 350* 1.9 .8 238 GUNSIGHT PASS 9820 2.1 .0 * 2.2 1.1 200 KENDALL R.S. 7740 .0 .0 * 1.1 .6 183 LOOMIS PARK 8240 .6 .0 * 1.3 .8 162 NEW FORK LAKE 8340 .5 .0 * .6 .6 100 POCKET CREEK 9360 2.2 -M * 2.3 -M * SNIDER BASIN 8060 .1 .0 * .9 .6 150 SPRING CREEK DIVIDE 9000 .5 .0 * 1.1 .9 122 TRIPLE PEAK 8500 .4 .0 * 1.3 1.0 130 ----- ----- Basin Index (%) 940* 163 LOWER GREEN RIVER BLACKS FORK JCT 8870 .0 -M * 1.8 -M * BUCK PASTURE 9700 .9 -M * 2.2 -M * EF BLACKS FORK GS 9360 .7 -M * 1.8 -M * HAMS FORK 7840 .0 .0 * 1.4 .6 233 HEWINTA 9519 .4 .0 * 2.0 .9 222 HICKERSON PARK 9145 .5 .0 * 1.4 .8 175 HOLE-IN-ROCK 9150 .0 .0 * 1.2 .9 133 INDIAN CREEK 9425 .7 .5 140* 1.4 1.0 140 KELLEY R.S. 8180 .6 .0 * 1.5 .8 188 SPIRIT LK 10235 1.0 -M * 1.9 -M * STEEL CREEK PARK 10200 .4 .4 100* 2.3 1.1 209 ----- ----- Basin Index (%) 289* 184 UPPER BEAR RIVER BEAR RIVER RS 8777 .4 -M * 1.7 -M * BUG LAKE 7950 .6 .0 * 1.4 1.1 127 BURTS MILLER RANCH 8000 .5 -M * .8 -M * CHALK CREEK #1 8993 1.2 .0 * 2.4 1.4 171 HAYDEN FORK 9212 .7 .0 * 2.5 1.1 227 KELLEY R.S. 8180 .6 .0 * 1.5 .8 188 LILY LAKE 9156 .8 .0 * 2.5 1.1 227 MONTE CRISTO 8960 .7 .0 * 1.6 1.2 133 SALT RIVER SUMMIT 7760 .0 .0 * 1.4 .8 175 ----- ----- Basin Index (%) * 177 ----------------------------------------------------------------------------- -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. ---------------------------------------------------------------------------- -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.