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 SUNDAY: OCTOBER 6 , 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 * .8 .4 200 BLACK BEAR 8170 1.3 .0 * 1.2 .7 171 BLIND BULL SUM 8650 .6 .0 * .6 .4 150 COTTONWOOD CREEK 7670 .5 .0 * .6 .5 120 EAST RIM DIVIDE 7930 .1 .0 * .6 .3 200 GRAND TARGHEE 9260 1.3 .9 144* 1.1 1.0 110 GRANITE CREEK 6770 .1 .0 * .6 .4 150 GRASSY LAKE 7265 .4 .0 * .6 .7 86 GROS VENTRE SUMMIT 8750 1.1 .0 * .9 .3 300 GUNSIGHT PASS 9820 1.9 .0 * 1.5 .5 300 LEWIS LAKE DIVIDE 7850 .1 .0 * .6 .6 100 PHILLIPS BENCH 8200 .1 .0 * .5 .4 125 SALT RIVER SUMMIT 7760 .0 .0 * .6 .3 200 SNAKE RIVER STATION 6920 .1 .0 * .5 .6 83 SPRING CREEK DIVIDE 9000 .3 .0 * .4 .4 100 THUMB DIVIDE 7980 .0 .0 * .5 .5 100 TOGWOTEE PASS 9580 2.5 .0 * 1.1 .5 220 TWO OCEAN PLATEAU 9240 2.1 .2 1050* 1.1 .5 220 WILLOW CREEK 8380 .4 .0 * 1.2 .6 200 YOUNTS PEAK 8350 -M .0 * -M .5 * ----- ----- Basin Index (%) 1173* 156 MADISON-GALLATIN BLACK BEAR 8170 1.3 .0 * 1.2 .7 171 CANYON 7870 .9 .0 * 1.1 .4 275 MADISON PLATEAU 7750 .6 .0 * 1.0 .6 167 WEST YELLOWSTONE 6700 .0 .0 * .5 .4 125 WHISKEY CREEK 6800 .0 .0 * .7 .4 175 ----- ----- Basin Index (%) * 180 YELLOWSTONE BEARTOOTH LAKE 9360 1.6 .5 320* .7 .4 175 BURNT MTN 5880 -M .0 * -M 1.0 * CANYON 7870 .9 .0 * 1.1 .4 275 COLE CREEK 7850 2.8 .5 560* 2.2 .8 275 EVENING STAR 9200 2.2 .0 * 1.2 .6 200 FISHER CREEK 9100 2.4 .0 * .9 .6 150 NORTHEAST ENTRANCE 7350 .1 .0 * .4 .4 100 PARKER PEAK 9400 1.8 .4 450* .7 .6 117 SYLVAN LAKE 8420 1.0 .0 * 1.1 .6 183 THUMB DIVIDE 7980 .0 .0 * .5 .5 100 TWO OCEAN PLATEAU 9240 2.1 .2 1050* 1.1 .5 220 WHITE MILL 8700 1.5 .0 * .8 .5 160 WOLVERINE 7650 .1 .0 * .7 .4 175 ----- ----- Basin Index (%) 1031* 181 WIND RIVER BURROUGHS CREEK 8750 -M .0 * -M .3 * CASTLE CREEK 8400 .6 -M * 1.0 -M * COLD SPRINGS 9630 1.8 .0 * -M .4 * DEER PARK 9700 2.0 .0 * 1.9 .6 317 HOBBS PARK 10100 2.5 .0 * 2.0 .5 400 KIRWIN 9550 2.4 .0 * 1.5 .4 375 LITTLE WARM 9370 2.1 .0 * -M .4 * OWL CREEK 8975 1.3 .0 * 1.1 .3 367 SOUTH PASS 9040 1.6 .0 * 1.9 .5 380 ST. LAWRENCE ALT 8620 1.4 .0 * 1.7 .5 340 TOGWOTEE PASS 9580 2.5 .0 * 1.1 .5 220 TOWNSEND CREEK 8700 -M .0 * -M .5 * ----- ----- Basin Index (%) * 339 BIGHORN BASIN BALD MTN. 9380 2.5 .5 500* 1.3 .5 260 BEAR TRAP MEADOW 8200 2.2 .0 * -M .4 * BONE SPRINGS DIV 9350 1.9 .5 380* 1.4 .6 233 GRAVE SPRINGS 8550 -M .0 * -M .6 * KIRWIN 9550 2.4 .0 * 1.5 .4 375 MARQUETTE 8760 3.0 -M * -M -M * MIDDLE POWDER 7760 3.3 .0 * 2.3 .5 460 OWL CREEK 8975 1.3 .0 * 1.1 .3 367 POWDER RIVER PASS 9480 2.2 .0 * 1.9 .5 380 SHELL CREEK 9580 2.8 .7 400* 1.7 .5 340 TIMBER CREEK 7950 1.5 .0 * 2.0 .5 400 ----- ----- Basin Index (%) 1182* 347 SHOSHONE RIVER BLACKWATER 9780 3.7 .2 1850* 1.6 .6 267 EVENING STAR 9200 2.2 .0 * 1.2 .6 200 MARQUETTE 8760 3.0 -M * -M -M * SYLVAN ROAD 7120 .7 .0 * 1.2 .5 240 YOUNTS PEAK 8350 -M .0 * -M .5 * ----- ----- Basin Index (%) 3300* 235 POWDER RIVER BEAR TRAP MEADOW 8200 2.2 .0 * -M .4 * CLOUD PEAK RESERVOIR 9860 3.0 .0 * -M .5 * GRAVE SPRINGS 8550 -M .0 * -M .6 * HANSEN SAWMILL 8360 2.6 .0 * -M .4 * MIDDLE POWDER 7760 3.3 .0 * 2.3 .5 460 POWDER RIVER PASS 9480 2.2 .0 * 1.9 .5 380 SOLDIER PARK 8720 2.6 -M * 2.8 -M * ----- ----- Basin Index (%) * 420* TONGUE RIVER BIG GOOSE 7990 -M .0 * -M .6 * BONE SPRINGS DIV 9350 1.9 .5 380* 1.4 .6 233 BURGESS JUNCTION 7880 1.8 .1 1800* 2.0 .4 500 DOME LAKE 8880 2.3 .0 * 2.6 .6 433 LITTLE GOOSE 8870 3.1 -M * 3.2 -M * SUCKER CREEK 8880 2.6 .0 * 2.5 .5 500 TIE CREEK 6870 -M .0 * 2.6 .7 371 ----- ----- Basin Index (%) 1433* 396 BELLE FOURCHE COLE CANYON 5910 -M .0 * -M .4 * ----- ----- Basin Index (%) * * CHEYENNE RIVER BASIN BLIND PARK 6890 -M .0 * -M .5 * NORTH RAPID CREEK 6130 -M .0 * -M .5 * ----- ----- Basin Index (%) * * UPPER N. PLATTE ARAPAHO RIDGE 10960 1.0 .1 1000* 1.3 .6 217 BLACKHALL MTN 9820 1.1 -M * 1.7 -M * COLUMBINE 9160 .2 .0 * .7 .5 140 DIVIDE PEAK 8880 1.2 .0 * 1.6 .6 267 JOE WRIGHT 10120 .4 .0 * 1.3 .5 260 LAPRELE CREEK 8375 1.0 .0 * 1.2 .4 300 MED BOW 10500 .9 -M * 1.2 -M * NORTH FRENCH CREEK 10130 .7 .0 * 1.0 .6 167 NEVER SUMMER 10280 .7 .0 * 1.1 -M * OLD BATTLE 10000 1.0 .0 * .9 .8 112 RAWAH 9020 1.6 .0 * 1.7 .5 340 SAGE CREEK BASIN 7850 1.4 .0 * 1.4 .5 280 SAND LAKE 10050 1.4 .0 * 1.4 .6 233 SOUTH BRUSH CREEK 8440 .9 .0 * 1.1 .5 220 TOWER 10500 1.1 .0 * 1.0 .8 125 WEBBER SPRINGS 9250 .7 .0 * 1.2 .6 200 WILLOW CREEK PASS 9540 1.2 .0 * 1.1 .2 550 ZIRKEL 9340 .1 .0 * .5 1.0 50 ----- ----- Basin Index (%) 14600* 200 SWEETWATER DEER PARK 9700 2.0 .0 * 1.9 .6 317 LARSEN CREEK 9000 .7 -M * 1.3 -M * SOUTH PASS 9040 1.6 .0 * 1.9 .5 380 ----- ----- Basin Index (%) * 345 LOWER N. PLATTE CASPER MTN. 7900 -M .0 * 2.3 .4 575 LAPRELE CREEK 8375 1.0 .0 * 1.2 .4 300 RENO HILL 8400 -M .0 * -M .4 * WINDY PEAK 7900 1.3 .0 * 1.6 .4 400 ----- ----- Basin Index (%) * 425 LARAMIE RIVER BROOKLYN LAKE 10240 .5 .0 * .7 .4 175 CINNABAR PARK 9574 .5 .0 * .9 .5 180 CROW CREEK 8330 .4 .0 * .8 .2 400 DEADMAN HILL 10220 .8 .0 * 1.1 .3 367 RAWAH 9020 1.6 .0 * 1.7 .5 340 ROACH 9700 -M .0 * -M .4 * ----- ----- Basin Index (%) * 274 S. PLATTE BLACK MOUNTAIN 8920 1.0 -M * 1.0 -M * CROW CREEK 8330 .4 .0 * .8 .2 400 DEADMAN HILL 10220 .8 .0 * 1.1 .3 367 ----- ----- Basin Index (%) * 380 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 -M .0 * .8 .4 200 DIVIDE PEAK 8880 1.2 .0 * 1.6 .6 267 ELK RIVER 8700 .8 .0 * 1.0 .5 200 LITTLE SNAKE RIVER 8915 .3 .0 * 1.1 .8 138 OLD BATTLE 10000 1.0 .0 * .9 .8 112 SAGE CREEK BASIN 7850 1.4 .0 * 1.4 .5 280 SANDSTONE RS 8150 .7 .0 * .9 .4 225 WHISKEY PARK 8950 .7 .0 * 1.1 .6 183 ----- ----- Basin Index (%) * 191 UPPER GREEN RIVER BIG SANDY OPENING 9080 .8 .0 * .7 .3 233 BLIND BULL SUM 8650 .6 .0 * .6 .4 150 EAST RIM DIVIDE 7930 .1 .0 * .6 .3 200 ELKHART PARK G.S. 9400 .8 .0 * 1.0 .3 333 GROS VENTRE SUMMIT 8750 1.1 .0 * .9 .3 300 GUNSIGHT PASS 9820 1.9 .0 * 1.5 .5 300 KENDALL R.S. 7740 .0 .0 * .6 .3 200 LOOMIS PARK 8240 .1 .0 * .7 .3 233 NEW FORK LAKE 8340 .4 .0 * .4 .3 133 POCKET CREEK 9360 1.5 -M * 1.3 -M * SNIDER BASIN 8060 .1 .0 * .5 .2 250 SPRING CREEK DIVIDE 9000 .3 .0 * .4 .4 100 TRIPLE PEAK 8500 .0 .0 * .6 .4 150 ----- ----- Basin Index (%) * 212 LOWER GREEN RIVER BLACKS FORK JCT 8870 -M -M * .5 -M * BUCK PASTURE 9700 .0 -M * .6 -M * EF BLACKS FORK GS 9360 .0 -M * .4 -M * HAMS FORK 7840 .0 .0 * .4 .3 133 HEWINTA 9519 .0 .0 * .6 .4 150 HICKERSON PARK 9145 .0 .0 * .6 .4 150 HOLE-IN-ROCK 9150 .0 .0 * .5 .4 125 INDIAN CREEK 9425 .0 .0 * .5 .3 167 KELLEY R.S. 8180 .2 .0 * .4 .3 133 SPIRIT LK 10235 .3 -M * .6 -M * STEEL CREEK PARK 10200 .0 .0 * .7 .5 140 ----- ----- Basin Index (%) * 142 UPPER BEAR RIVER BEAR RIVER RS 8777 .0 -M * .6 -M * BUG LAKE 7950 .5 .0 * .8 .4 200 BURTS MILLER RANCH 8000 .4 -M * .3 -M * CHALK CREEK #1 8993 .8 .0 * 1.2 .6 200 HAYDEN FORK 9212 .1 .0 * .9 .5 180 KELLEY R.S. 8180 .2 .0 * .4 .3 133 LILY LAKE 9156 .0 .0 * .7 .5 140 MONTE CRISTO 8960 .2 .0 * .6 .5 120 SALT RIVER SUMMIT 7760 .0 .0 * .6 .3 200 ----- ----- Basin Index (%) * 168 ----------------------------------------------------------------------------- -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.