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 FRIDAY: OCTOBER 11 , 2013 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 .1 .0 * .6 .6 100 BLACK BEAR 8170 1.3 .4 325* 1.6 1.2 133 BLIND BULL SUM 8650 .2 .0 * .7 .6 117 COTTONWOOD CREEK 7670 .5 .0 * .9 .8 112 EAST RIM DIVIDE 7930 .1 .0 * .7 .4 175 GRAND TARGHEE 9260 1.7 1.2 142* 1.8 2.0 90 GRANITE CREEK 6770 .1 .0 * .6 .5 120 GRASSY LAKE 7265 .2 .0 * 1.0 1.1 91 GROS VENTRE SUMMIT 8750 1.2 .0 * 1.1 .5 220 GUNSIGHT PASS 9820 1.7 .0 * 1.7 .8 212 LEWIS LAKE DIVIDE 7850 .1 .0 * .8 .9 89 PHILLIPS BENCH 8200 .0 .0 * .8 .7 114 SALT RIVER SUMMIT 7760 .1 .0 * .9 .5 180 SNAKE RIVER STATION 6920 .2 .0 * .7 .8 88 SPRING CREEK DIVIDE 9000 .1 .0 * .5 .6 83 THUMB DIVIDE 7980 .0 .0 * .7 .8 88 TOGWOTEE PASS 9580 2.8 .5 560* 1.5 .8 188 TWO OCEAN PLATEAU 9240 2.3 .8 288* 1.4 1.0 140 WILLOW CREEK 8380 .2 .0 * 1.6 1.1 145 YOUNTS PEAK 8350 -M .3 * -M .8 * ----- ----- Basin Index (%) 445* 125 MADISON-GALLATIN BLACK BEAR 8170 1.3 .4 325* 1.6 1.2 133 CANYON 7870 .7 .0 * 1.1 .6 183 MADISON PLATEAU 7750 .0 .2 0* 1.2 .9 133 WEST YELLOWSTONE 6700 .1 .0 * .7 .7 100 WHISKEY CREEK 6800 .0 .0 * 1.0 .8 125 ----- ----- Basin Index (%) 350* 133 YELLOWSTONE BEARTOOTH LAKE 9360 1.7 .8 212* .8 .7 114 BURNT MTN 5880 -M .0 * 3.2 1.7 188 CANYON 7870 .7 .0 * 1.1 .6 183 COLE CREEK 7850 2.4 .8 300* 2.0 1.3 154 EVENING STAR 9200 2.2 .6 367* 1.4 1.1 127 FISHER CREEK 9100 2.3 .5 460* .8 1.1 73 NORTHEAST ENTRANCE 7350 .1 .0 * .5 .7 71 PARKER PEAK 9400 2.2 .8 275* 1.1 1.0 110 SYLVAN LAKE 8420 .5 .2 250* 1.4 1.1 127 THUMB DIVIDE 7980 .0 .0 * .7 .8 88 TWO OCEAN PLATEAU 9240 2.3 .8 288* 1.4 1.0 140 WHITE MILL 8700 1.5 .4 375* .9 .9 100 WOLVERINE 7650 .0 .0 * .8 .7 114 ----- ----- Basin Index (%) 324* 127 WIND RIVER BURROUGHS CREEK 8750 -M .0 * -M .7 * CASTLE CREEK 8400 .1 -M * 1.3 -M * COLD SPRINGS 9630 1.5 .0 * 2.1 .7 300 DEER PARK 9700 2.0 .4 500* 2.2 1.0 220 HOBBS PARK 10100 2.5 .3 833* 2.4 .8 300 KIRWIN 9550 2.5 .4 625* 1.7 .7 243 LITTLE WARM 9370 1.9 .1 1900* 2.4 .6 400 OWL CREEK 8975 .9 .0 * 1.3 .6 217 SOUTH PASS 9040 1.3 .0 * 2.1 .7 300 ST. LAWRENCE ALT 8620 .7 .0 * 1.9 .7 271 TOGWOTEE PASS 9580 2.8 .5 560* 1.5 .8 188 TOWNSEND CREEK 8700 -M .0 * -M .8 * ----- ----- Basin Index (%) 947* 267 BIGHORN BASIN BALD MTN. 9380 2.6 1.3 200* 1.5 1.1 136 BEAR TRAP MEADOW 8200 1.6 .0 * 2.4 .7 343 BONE SPRINGS DIV 9350 1.8 .9 200* 1.4 1.1 127 GRAVE SPRINGS 8550 2.1 .0 * 2.5 .9 278 KIRWIN 9550 2.5 .4 625* 1.7 .7 243 MARQUETTE 8760 2.8 -M * 3.1 -M * MIDDLE POWDER 7760 3.0 .2 1500* 2.5 .9 278 OWL CREEK 8975 .9 .0 * 1.3 .6 217 POWDER RIVER PASS 9480 1.9 .0 * 2.1 .8 262 SHELL CREEK 9580 2.8 1.2 233* 1.7 1.0 170 TIMBER CREEK 7950 1.1 .0 * 2.1 .8 262 ----- ----- Basin Index (%) 508* 223 SHOSHONE RIVER BLACKWATER 9780 3.8 .8 475* 1.8 1.0 180 EVENING STAR 9200 2.2 .6 367* 1.4 1.1 127 MARQUETTE 8760 2.8 -M * 3.1 -M * SYLVAN ROAD 7120 .1 .0 * 1.4 .8 175 YOUNTS PEAK 8350 -M .3 * -M .8 * ----- ----- Basin Index (%) 436* 159 POWDER RIVER BEAR TRAP MEADOW 8200 1.6 .0 * 2.4 .7 343 CLOUD PEAK RESERVOIR 9860 2.6 .0 * 3.1 1.0 310 GRAVE SPRINGS 8550 2.1 .0 * 2.5 .9 278 HANSEN SAWMILL 8360 1.9 .0 * 2.8 .7 400 MIDDLE POWDER 7760 3.0 .2 1500* 2.5 .9 278 POWDER RIVER PASS 9480 1.9 .0 * 2.1 .8 262 SOLDIER PARK 8720 1.6 -M * 2.7 -M * ----- ----- Basin Index (%) 6550* 308 TONGUE RIVER BIG GOOSE 7990 1.9 .0 * 2.7 1.0 270 BONE SPRINGS DIV 9350 1.8 .9 200* 1.4 1.1 127 BURGESS JUNCTION 7880 1.4 .2 700* 2.0 1.0 200 DOME LAKE 8880 2.0 .4 500* 2.7 1.0 270 LITTLE GOOSE 8870 2.5 -M * 3.5 -M * SUCKER CREEK 8880 2.1 .2 1050* 2.4 1.0 240 TIE CREEK 6870 .8 .0 * 2.7 1.1 245 ----- ----- Basin Index (%) 588* 224 BELLE FOURCHE COLE CANYON 5910 -M .0 * -M .9 * ----- ----- Basin Index (%) * * CHEYENNE RIVER BASIN BLIND PARK 6890 2.2 .0 * 3.7 .9 411 NORTH RAPID CREEK 6130 3.5 .0 * 3.9 .8 488 ----- ----- Basin Index (%) * 447 UPPER N. PLATTE ARAPAHO RIDGE 10960 1.2 .2 600* 1.7 1.0 170 BLACKHALL MTN 9820 1.5 -M * 2.3 -M * COLUMBINE 9160 .3 .0 * 1.3 1.0 130 DIVIDE PEAK 8880 .9 .0 * 2.5 1.2 208 JOE WRIGHT 10120 .1 .0 * 2.0 1.1 182 LAPRELE CREEK 8375 .2 .0 * 1.4 .7 200 MED BOW 10500 1.6 -M * 2.3 -M * NORTH FRENCH CREEK 10130 1.2 .3 400* 2.2 1.1 200 NEVER SUMMER 10280 1.0 .3 333* 1.5 -M * OLD BATTLE 10000 1.7 .4 425* 1.9 1.5 127 RAWAH 9020 1.0 .0 * 2.6 .8 325 SAGE CREEK BASIN 7850 .5 .0 * 1.8 .9 200 SAND LAKE 10050 1.9 .3 633* 2.2 1.1 200 SOUTH BRUSH CREEK 8440 1.0 .0 * 2.1 .8 262 TOWER 10500 1.1 .6 183* 1.8 1.4 129 WEBBER SPRINGS 9250 .4 .0 * 1.8 1.2 150 WILLOW CREEK PASS 9540 1.0 .0 * 1.4 .6 233 ZIRKEL 9340 -M .0 * 1.0 1.6 62 ----- ----- Basin Index (%) 643* 173 SWEETWATER DEER PARK 9700 2.0 .4 500* 2.2 1.0 220 LARSEN CREEK 9000 .5 -M * 1.6 -M * SOUTH PASS 9040 1.3 .0 * 2.1 .7 300 ----- ----- Basin Index (%) 825* 253 LOWER N. PLATTE CASPER MTN. 7900 -M .1 * -M .9 * LAPRELE CREEK 8375 .2 .0 * 1.4 .7 200 RENO HILL 8400 4.4 .0 * -M .9 * WINDY PEAK 7900 .4 .0 * 1.9 .7 271 ----- ----- Basin Index (%) * 236 LARAMIE RIVER BROOKLYN LAKE 10240 .6 .0 * .8 .7 114 CINNABAR PARK 9574 .5 .0 * 1.4 .9 156 CROW CREEK 8330 .5 .0 * 1.5 .6 250 DEADMAN HILL 10220 .9 .0 * 1.6 .7 229 RAWAH 9020 1.0 .0 * 2.6 .8 325 ROACH 9700 -M .0 * -M .8 * ----- ----- Basin Index (%) * 214 S. PLATTE BLACK MOUNTAIN 8920 .2 -M * 1.2 -M * CROW CREEK 8330 .5 .0 * 1.5 .6 250 DEADMAN HILL 10220 .9 .0 * 1.6 .7 229 ----- ----- Basin Index (%) * 238 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 -M .0 * 1.4 .7 200 DIVIDE PEAK 8880 .9 .0 * 2.5 1.2 208 ELK RIVER 8700 .3 .0 * 1.3 1.0 130 LITTLE SNAKE RIVER 8915 .6 .0 * 2.0 1.5 133 OLD BATTLE 10000 1.7 .4 425* 1.9 1.5 127 SAGE CREEK BASIN 7850 .5 .0 * 1.8 .9 200 SANDSTONE RS 8150 .7 .0 * 1.5 .8 188 WHISKEY PARK 8950 .9 .0 * 2.0 1.0 200 ----- ----- Basin Index (%) 1400* 167 UPPER GREEN RIVER BIG SANDY OPENING 9080 .8 .0 * .8 .6 133 BLIND BULL SUM 8650 .2 .0 * .7 .6 117 EAST RIM DIVIDE 7930 .1 .0 * .7 .4 175 ELKHART PARK G.S. 9400 .5 .0 * 1.0 .6 167 GROS VENTRE SUMMIT 8750 1.2 .0 * 1.1 .5 220 GUNSIGHT PASS 9820 1.7 .0 * 1.7 .8 212 KENDALL R.S. 7740 .0 .0 * .7 .4 175 LOOMIS PARK 8240 .2 .0 * .8 .6 133 NEW FORK LAKE 8340 .2 .0 * .7 .4 175 POCKET CREEK 9360 1.4 -M * 1.5 -M * SNIDER BASIN 8060 .1 .0 * .6 .4 150 SPRING CREEK DIVIDE 9000 .1 .0 * .5 .6 83 TRIPLE PEAK 8500 .1 .0 * .7 .6 117 ----- ----- Basin Index (%) * 154 LOWER GREEN RIVER BLACKS FORK JCT 8870 .0 -M * 1.0 -M * BUCK PASTURE 9700 .4 -M * 1.2 -M * EF BLACKS FORK GS 9360 .4 -M * 1.0 -M * HAMS FORK 7840 .2 .0 * 1.0 .4 250 HEWINTA 9519 .7 .0 * 1.4 .7 200 HICKERSON PARK 9145 .6 .0 * 1.1 .7 157 HOLE-IN-ROCK 9150 .1 .0 * .7 .7 100 INDIAN CREEK 9425 .4 .0 * .9 .6 150 KELLEY R.S. 8180 .4 .0 * 1.0 .5 200 SPIRIT LK 10235 .9 -M * 1.5 -M * STEEL CREEK PARK 10200 .3 .0 * 1.5 .8 188 ----- ----- Basin Index (%) * 173 UPPER BEAR RIVER BEAR RIVER RS 8777 .4 -M * 1.0 -M * BUG LAKE 7950 .6 .0 * 1.0 .7 143 BURTS MILLER RANCH 8000 .3 -M * .5 -M * CHALK CREEK #1 8993 .7 .0 * 1.7 1.0 170 HAYDEN FORK 9212 .4 .0 * 1.6 .8 200 KELLEY R.S. 8180 .4 .0 * 1.0 .5 200 LILY LAKE 9156 .5 .0 * 1.5 .9 167 MONTE CRISTO 8960 .9 .0 * 1.3 .8 162 SALT RIVER SUMMIT 7760 .1 .0 * .9 .5 180 ----- ----- Basin Index (%) * 173 ----------------------------------------------------------------------------- -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.