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 THURSDAY: OCTOBER 10 , 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 * .7 .6 117 BLACK BEAR 8170 1.3 .3 433* 1.5 1.1 136 BLIND BULL SUM 8650 .2 .0 * .6 .6 100 COTTONWOOD CREEK 7670 .4 .0 * .6 .8 75 EAST RIM DIVIDE 7930 .0 .0 * .6 .4 150 GRAND TARGHEE 9260 1.3 1.2 108* 1.4 2.0 70 GRANITE CREEK 6770 .1 .0 * .6 .5 120 GRASSY LAKE 7265 .2 .0 * .8 1.0 80 GROS VENTRE SUMMIT 8750 1.1 .0 * 1.0 .5 200 GUNSIGHT PASS 9820 1.6 .0 * 1.6 .7 229 LEWIS LAKE DIVIDE 7850 .0 .0 * .7 .9 78 PHILLIPS BENCH 8200 .0 .0 * .6 .6 100 SALT RIVER SUMMIT 7760 .0 .0 * .6 .5 120 SNAKE RIVER STATION 6920 .2 .0 * .5 .8 62 SPRING CREEK DIVIDE 9000 .0 .0 * .5 .5 100 THUMB DIVIDE 7980 .0 .0 * .5 .7 71 TOGWOTEE PASS 9580 2.5 .4 625* 1.2 .7 171 TWO OCEAN PLATEAU 9240 2.0 .6 333* 1.2 .9 133 WILLOW CREEK 8380 .0 .0 * 1.1 1.0 110 YOUNTS PEAK 8350 -M .2 * -M .7 * ----- ----- Basin Index (%) 436* 110 MADISON-GALLATIN BLACK BEAR 8170 1.3 .3 433* 1.5 1.1 136 CANYON 7870 .7 .0 * 1.1 .6 183 MADISON PLATEAU 7750 .1 .0 * 1.2 .8 150 WEST YELLOWSTONE 6700 .1 .0 * .6 .6 100 WHISKEY CREEK 6800 .0 .0 * .7 .7 100 ----- ----- Basin Index (%) 733* 134 YELLOWSTONE BEARTOOTH LAKE 9360 1.7 .8 212* .6 .6 100 BURNT MTN 5880 -M .0 * 3.0 1.5 200 CANYON 7870 .7 .0 * 1.1 .6 183 COLE CREEK 7850 2.3 .8 288* 2.1 1.2 175 EVENING STAR 9200 2.1 .4 525* 1.3 1.0 130 FISHER CREEK 9100 2.3 .3 767* .9 1.0 90 NORTHEAST ENTRANCE 7350 .0 .0 * .4 .6 67 PARKER PEAK 9400 1.8 .7 257* .7 .9 78 SYLVAN LAKE 8420 .5 .2 250* 1.2 1.0 120 THUMB DIVIDE 7980 .0 .0 * .5 .7 71 TWO OCEAN PLATEAU 9240 2.0 .6 333* 1.2 .9 133 WHITE MILL 8700 1.5 .3 500* .8 .9 89 WOLVERINE 7650 .0 .0 * .7 .6 117 ----- ----- Basin Index (%) 363* 126 WIND RIVER BURROUGHS CREEK 8750 -M .0 * -M .6 * CASTLE CREEK 8400 .2 -M * 1.2 -M * COLD SPRINGS 9630 1.5 .0 * 2.1 .6 350 DEER PARK 9700 1.7 .3 567* 1.9 .9 211 HOBBS PARK 10100 2.5 .2 1250* 2.2 .7 314 KIRWIN 9550 2.5 .3 833* 1.6 .7 229 LITTLE WARM 9370 1.9 .0 * -M .6 * OWL CREEK 8975 1.0 .0 * 1.2 .6 200 SOUTH PASS 9040 1.1 .0 * 2.0 .7 286 ST. LAWRENCE ALT 8620 .7 .0 * 1.8 .6 300 TOGWOTEE PASS 9580 2.5 .4 625* 1.2 .7 171 TOWNSEND CREEK 8700 -M .0 * -M .8 * ----- ----- Basin Index (%) 1283* 255 BIGHORN BASIN BALD MTN. 9380 2.4 1.1 218* 1.4 1.0 140 BEAR TRAP MEADOW 8200 1.6 .0 * 2.3 .6 383 BONE SPRINGS DIV 9350 1.7 .9 189* 1.4 1.0 140 GRAVE SPRINGS 8550 2.1 .0 * 2.5 .9 278 KIRWIN 9550 2.5 .3 833* 1.6 .7 229 MARQUETTE 8760 2.7 -M * 3.0 -M * MIDDLE POWDER 7760 2.9 .1 2900* 2.3 .9 256 OWL CREEK 8975 1.0 .0 * 1.2 .6 200 POWDER RIVER PASS 9480 1.9 .0 * 2.0 .7 286 SHELL CREEK 9580 2.7 1.1 245* 1.7 .9 189 TIMBER CREEK 7950 1.1 .0 * 2.1 .8 262 ----- ----- Basin Index (%) 569* 228 SHOSHONE RIVER BLACKWATER 9780 3.6 .8 450* 1.6 1.0 160 EVENING STAR 9200 2.1 .4 525* 1.3 1.0 130 MARQUETTE 8760 2.7 -M * 3.0 -M * SYLVAN ROAD 7120 .0 .0 * 1.2 .8 150 YOUNTS PEAK 8350 -M .2 * -M .7 * ----- ----- Basin Index (%) 475* 146 POWDER RIVER BEAR TRAP MEADOW 8200 1.6 .0 * 2.3 .6 383 CLOUD PEAK RESERVOIR 9860 2.5 .0 * 2.9 .9 322 GRAVE SPRINGS 8550 2.1 .0 * 2.5 .9 278 HANSEN SAWMILL 8360 2.0 .0 * 2.8 .6 467 MIDDLE POWDER 7760 2.9 .1 2900* 2.3 .9 256 POWDER RIVER PASS 9480 1.9 .0 * 2.0 .7 286 SOLDIER PARK 8720 1.8 -M * 2.7 -M * ----- ----- Basin Index (%) 13000* 322 TONGUE RIVER BIG GOOSE 7990 1.8 .0 * 2.6 .9 289 BONE SPRINGS DIV 9350 1.7 .9 189* 1.4 1.0 140 BURGESS JUNCTION 7880 1.4 .2 700* 1.9 .8 238 DOME LAKE 8880 1.9 .4 475* 2.6 1.0 260 LITTLE GOOSE 8870 2.5 -M * 3.3 -M * SUCKER CREEK 8880 2.0 .2 1000* 2.3 .9 256 TIE CREEK 6870 1.1 .0 * 2.6 1.1 236 ----- ----- Basin Index (%) 582* 235 BELLE FOURCHE COLE CANYON 5910 -M .0 * -M .7 * ----- ----- Basin Index (%) * * CHEYENNE RIVER BASIN BLIND PARK 6890 2.4 .0 * 3.7 .9 411 NORTH RAPID CREEK 6130 3.6 .0 * 3.7 .8 462 ----- ----- Basin Index (%) * 435 UPPER N. PLATTE ARAPAHO RIDGE 10960 .7 .2 350* 1.3 .8 162 BLACKHALL MTN 9820 .9 -M * 1.5 -M * COLUMBINE 9160 .1 .0 * 1.0 .9 111 DIVIDE PEAK 8880 .1 .0 * 1.6 1.1 145 JOE WRIGHT 10120 .0 .0 * 1.4 1.0 140 LAPRELE CREEK 8375 .1 .0 * 1.3 .7 186 MED BOW 10500 .8 -M * 1.4 -M * NORTH FRENCH CREEK 10130 .2 .2 100* 1.1 1.0 110 NEVER SUMMER 10280 .6 .3 200* 1.1 -M * OLD BATTLE 10000 .9 .2 450* 1.1 1.4 79 RAWAH 9020 .4 .0 * 1.9 .8 238 SAGE CREEK BASIN 7850 .3 .0 * 1.4 .9 156 SAND LAKE 10050 1.3 .2 650* 1.6 1.0 160 SOUTH BRUSH CREEK 8440 .2 .0 * 1.3 .8 162 TOWER 10500 .3 .5 60* 1.4 1.3 108 WEBBER SPRINGS 9250 .0 .0 * 1.3 1.1 118 WILLOW CREEK PASS 9540 1.0 .0 * 1.3 .5 260 ZIRKEL 9340 .1 .0 * .6 1.4 43 ----- ----- Basin Index (%) 394* 133 SWEETWATER DEER PARK 9700 1.7 .3 567* 1.9 .9 211 LARSEN CREEK 9000 .3 -M * 1.3 -M * SOUTH PASS 9040 1.1 .0 * 2.0 .7 286 ----- ----- Basin Index (%) 933* 244 LOWER N. PLATTE CASPER MTN. 7900 -M .0 * 2.5 .9 278 LAPRELE CREEK 8375 .1 .0 * 1.3 .7 186 RENO HILL 8400 3.7 .0 * -M .8 * WINDY PEAK 7900 .2 .0 * 1.7 .6 283 ----- ----- Basin Index (%) * 250 LARAMIE RIVER BROOKLYN LAKE 10240 .1 .0 * .7 .6 117 CINNABAR PARK 9574 .1 .0 * .9 .8 112 CROW CREEK 8330 .0 .0 * .9 .4 225 DEADMAN HILL 10220 .6 .0 * 1.2 .7 171 RAWAH 9020 .4 .0 * 1.9 .8 238 ROACH 9700 -M .0 * -M .7 * ----- ----- Basin Index (%) * 170 S. PLATTE BLACK MOUNTAIN 8920 .2 -M * 1.1 -M * CROW CREEK 8330 .0 .0 * .9 .4 225 DEADMAN HILL 10220 .6 .0 * 1.2 .7 171 ----- ----- Basin Index (%) * 191 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 -M .0 * .9 .7 129 DIVIDE PEAK 8880 .1 .0 * 1.6 1.1 145 ELK RIVER 8700 .2 .0 * 1.1 .9 122 LITTLE SNAKE RIVER 8915 .0 .0 * 1.3 1.4 93 OLD BATTLE 10000 .9 .2 450* 1.1 1.4 79 SAGE CREEK BASIN 7850 .3 .0 * 1.4 .9 156 SANDSTONE RS 8150 .2 .0 * .9 .8 112 WHISKEY PARK 8950 .1 .0 * 1.1 1.0 110 ----- ----- Basin Index (%) 900* 115 UPPER GREEN RIVER BIG SANDY OPENING 9080 .8 .0 * .8 .5 160 BLIND BULL SUM 8650 .2 .0 * .6 .6 100 EAST RIM DIVIDE 7930 .0 .0 * .6 .4 150 ELKHART PARK G.S. 9400 .6 .0 * 1.0 .6 167 GROS VENTRE SUMMIT 8750 1.1 .0 * 1.0 .5 200 GUNSIGHT PASS 9820 1.6 .0 * 1.6 .7 229 KENDALL R.S. 7740 .0 .0 * .7 .4 175 LOOMIS PARK 8240 .1 .0 * .8 .5 160 NEW FORK LAKE 8340 .1 .0 * .6 .4 150 POCKET CREEK 9360 1.3 -M * 1.4 -M * SNIDER BASIN 8060 .1 .0 * .5 .3 167 SPRING CREEK DIVIDE 9000 .0 .0 * .5 .5 100 TRIPLE PEAK 8500 .0 .0 * .5 .6 83 ----- ----- Basin Index (%) * 153 LOWER GREEN RIVER BLACKS FORK JCT 8870 -M -M * .5 -M * BUCK PASTURE 9700 .0 -M * .4 -M * EF BLACKS FORK GS 9360 .0 -M * -M -M * HAMS FORK 7840 .0 .0 * .5 .4 125 HEWINTA 9519 .1 .0 * .6 .7 86 HICKERSON PARK 9145 .3 .0 * .7 .6 117 HOLE-IN-ROCK 9150 .0 .0 * .4 .6 67 INDIAN CREEK 9425 .0 .0 * .5 .5 100 KELLEY R.S. 8180 .1 .0 * .6 .5 120 SPIRIT LK 10235 .2 -M * .7 -M * STEEL CREEK PARK 10200 .0 .0 * .7 .8 88 ----- ----- Basin Index (%) * 98 UPPER BEAR RIVER BEAR RIVER RS 8777 .0 -M * .5 -M * BUG LAKE 7950 .5 .0 * .8 .6 133 BURTS MILLER RANCH 8000 .2 -M * .4 -M * CHALK CREEK #1 8993 .2 .0 * 1.1 .9 122 HAYDEN FORK 9212 .0 .0 * .8 .8 100 KELLEY R.S. 8180 .1 .0 * .6 .5 120 LILY LAKE 9156 .0 .0 * .7 .8 88 MONTE CRISTO 8960 .3 .0 * .5 .8 62 SALT RIVER SUMMIT 7760 .0 .0 * .6 .5 120 ----- ----- Basin Index (%) * 104 ----------------------------------------------------------------------------- -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.