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 12 , 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 * .9 .7 129 BLACK BEAR 8170 1.3 .5 260* 1.5 1.4 107 BLIND BULL SUM 8650 .1 .1 100* .7 .7 100 COTTONWOOD CREEK 7670 .5 .0 * 1.0 .9 111 EAST RIM DIVIDE 7930 .0 .0 * .6 .5 120 GRAND TARGHEE 9260 1.6 1.2 133* 1.7 2.2 77 GRANITE CREEK 6770 .0 .0 * .5 .6 83 GRASSY LAKE 7265 .1 .0 * .8 1.2 67 GROS VENTRE SUMMIT 8750 1.2 .3 400* 1.1 .6 183 GUNSIGHT PASS 9820 1.5 .0 * 1.6 .9 178 LEWIS LAKE DIVIDE 7850 .0 .0 * .7 1.0 70 PHILLIPS BENCH 8200 .0 .0 * .8 .7 114 SALT RIVER SUMMIT 7760 .0 .0 * .9 .6 150 SNAKE RIVER STATION 6920 .2 .0 * .7 .9 78 SPRING CREEK DIVIDE 9000 .0 .0 * .5 .7 71 THUMB DIVIDE 7980 .0 .0 * .6 .9 67 TOGWOTEE PASS 9580 2.7 .7 386* 1.5 .9 167 TWO OCEAN PLATEAU 9240 2.3 .9 256* 1.4 1.0 140 WILLOW CREEK 8380 .0 .0 * 1.6 1.2 133 YOUNTS PEAK 8350 -M .4 * -M .8 * ----- ----- Basin Index (%) 311* 109 MADISON-GALLATIN BLACK BEAR 8170 1.3 .5 260* 1.5 1.4 107 CANYON 7870 .7 .0 * 1.2 .7 171 MADISON PLATEAU 7750 .0 .3 0* 1.2 1.0 120 WEST YELLOWSTONE 6700 .0 .0 * .7 .8 88 WHISKEY CREEK 6800 .0 .0 * .7 .9 78 ----- ----- Basin Index (%) 250* 110 YELLOWSTONE BEARTOOTH LAKE 9360 1.7 .9 189* .5 .8 62 BURNT MTN 5880 .9 .0 * 3.1 2.1 148 CANYON 7870 .7 .0 * 1.2 .7 171 COLE CREEK 7850 2.3 .8 288* 2.0 1.4 143 EVENING STAR 9200 2.1 .6 350* 1.4 1.2 117 FISHER CREEK 9100 2.3 .7 329* .8 1.2 67 NORTHEAST ENTRANCE 7350 .1 .0 * .4 .7 57 PARKER PEAK 9400 2.0 .8 250* 1.1 1.1 100 SYLVAN LAKE 8420 .5 .3 167* 1.4 1.1 127 THUMB DIVIDE 7980 .0 .0 * .6 .9 67 TWO OCEAN PLATEAU 9240 2.3 .9 256* 1.4 1.0 140 WHITE MILL 8700 1.3 .6 217* .7 1.0 70 WOLVERINE 7650 .0 .0 * .5 .8 62 ----- ----- Basin Index (%) 289* 108 WIND RIVER BURROUGHS CREEK 8750 -M .0 * -M .7 * CASTLE CREEK 8400 .0 -M * 1.1 -M * COLD SPRINGS 9630 1.3 .0 * 2.3 .8 288 DEER PARK 9700 1.8 .5 360* 2.0 1.2 167 HOBBS PARK 10100 2.4 .4 600* 2.2 .9 244 KIRWIN 9550 2.3 .4 575* 1.5 .8 188 LITTLE WARM 9370 1.8 .2 900* 2.1 .7 300 OWL CREEK 8975 .9 .0 * 1.2 .6 200 SOUTH PASS 9040 1.2 .0 * 1.9 .8 238 ST. LAWRENCE ALT 8620 .3 .0 * 1.6 .7 229 TOGWOTEE PASS 9580 2.7 .7 386* 1.5 .9 167 TOWNSEND CREEK 8700 -M .0 * -M .9 * ----- ----- Basin Index (%) 668* 220 BIGHORN BASIN BALD MTN. 9380 2.5 1.4 179* 1.4 1.2 117 BEAR TRAP MEADOW 8200 1.4 .0 * 2.3 .7 329 BONE SPRINGS DIV 9350 1.7 1.0 170* 1.3 1.2 108 GRAVE SPRINGS 8550 2.2 .0 * 2.7 1.0 270 KIRWIN 9550 2.3 .4 575* 1.5 .8 188 MARQUETTE 8760 2.6 -M * 3.2 -M * MIDDLE POWDER 7760 3.2 .2 1600* 3.0 1.0 300 OWL CREEK 8975 .9 .0 * 1.2 .6 200 POWDER RIVER PASS 9480 1.9 .1 1900* 1.9 .9 211 SHELL CREEK 9580 2.7 1.3 208* 1.7 1.1 155 TIMBER CREEK 7950 1.1 .0 * 2.3 1.0 230 ----- ----- Basin Index (%) 452* 203 SHOSHONE RIVER BLACKWATER 9780 3.7 .9 411* 1.7 1.1 155 EVENING STAR 9200 2.1 .6 350* 1.4 1.2 117 MARQUETTE 8760 2.6 -M * 3.2 -M * SYLVAN ROAD 7120 .0 .0 * 1.4 .9 156 YOUNTS PEAK 8350 -M .4 * -M .8 * ----- ----- Basin Index (%) 387* 141 POWDER RIVER BEAR TRAP MEADOW 8200 1.4 .0 * 2.3 .7 329 CLOUD PEAK RESERVOIR 9860 2.5 .2 1250* 3.1 1.1 282 GRAVE SPRINGS 8550 2.2 .0 * 2.7 1.0 270 HANSEN SAWMILL 8360 1.7 .0 * 2.8 .8 350 MIDDLE POWDER 7760 3.2 .2 1600* 3.0 1.0 300 POWDER RIVER PASS 9480 1.9 .1 1900* 1.9 .9 211 SOLDIER PARK 8720 1.4 -M * 2.6 -M * ----- ----- Basin Index (%) 2580* 287 TONGUE RIVER BIG GOOSE 7990 1.7 .0 * 2.6 1.1 236 BONE SPRINGS DIV 9350 1.7 1.0 170* 1.3 1.2 108 BURGESS JUNCTION 7880 1.3 .3 433* 2.0 1.0 200 DOME LAKE 8880 1.8 .5 360* 2.6 1.1 236 LITTLE GOOSE 8870 2.4 -M * 3.4 -M * SUCKER CREEK 8880 2.1 .3 700* 2.6 1.1 236 TIE CREEK 6870 .7 .0 * 2.7 1.2 225 ----- ----- Basin Index (%) 443* 206 BELLE FOURCHE COLE CANYON 5910 -M .0 * -M 1.0 * ----- ----- Basin Index (%) * * CHEYENNE RIVER BASIN BLIND PARK 6890 -M .0 * -M 1.0 * NORTH RAPID CREEK 6130 -M .0 * -M .9 * ----- ----- Basin Index (%) * * UPPER N. PLATTE ARAPAHO RIDGE 10960 1.5 .3 500* 2.1 1.1 191 BLACKHALL MTN 9820 1.7 -M * 2.7 -M * COLUMBINE 9160 1.0 .0 * 2.2 1.1 200 DIVIDE PEAK 8880 1.7 .0 * 3.4 1.3 262 JOE WRIGHT 10120 .1 .2 50* 2.2 1.3 169 LAPRELE CREEK 8375 .4 .0 * 1.8 .7 257 MED BOW 10500 2.8 -M * 3.3 -M * NORTH FRENCH CREEK 10130 -M .4 * -M 1.2 * NEVER SUMMER 10280 1.3 .4 325* 1.8 -M * OLD BATTLE 10000 2.4 .5 480* 2.6 1.6 162 RAWAH 9020 1.0 .0 * 2.8 .9 311 SAGE CREEK BASIN 7850 .9 .0 * 2.4 1.0 240 SAND LAKE 10050 2.5 .5 500* 2.8 1.2 233 SOUTH BRUSH CREEK 8440 1.6 .0 * -M 1.0 * TOWER 10500 2.8 .8 350* 3.2 1.6 200 WEBBER SPRINGS 9250 .7 .0 * 2.2 1.3 169 WILLOW CREEK PASS 9540 1.0 .0 * 1.5 .7 214 ZIRKEL 9340 -M .0 * 1.9 1.8 106 ----- ----- Basin Index (%) 700* 199 SWEETWATER DEER PARK 9700 1.8 .5 360* 2.0 1.2 167 LARSEN CREEK 9000 .2 -M * 1.5 -M * SOUTH PASS 9040 1.2 .0 * 1.9 .8 238 ----- ----- Basin Index (%) 600* 195 LOWER N. PLATTE CASPER MTN. 7900 -M .1 * -M 1.0 * LAPRELE CREEK 8375 .4 .0 * 1.8 .7 257 RENO HILL 8400 -M .0 * -M 1.0 * WINDY PEAK 7900 .2 .0 * 2.1 .7 300 ----- ----- Basin Index (%) * 279 LARAMIE RIVER BROOKLYN LAKE 10240 1.1 .0 * 1.5 .8 188 CINNABAR PARK 9574 1.3 .0 * 2.4 1.1 218 CROW CREEK 8330 .4 .0 * 1.8 .7 257 DEADMAN HILL 10220 1.0 .1 1000* 1.8 .9 200 RAWAH 9020 1.0 .0 * 2.8 .9 311 ROACH 9700 -M .0 * -M .9 * ----- ----- Basin Index (%) 4800* 234 S. PLATTE BLACK MOUNTAIN 8920 .2 -M * 1.3 -M * CROW CREEK 8330 .4 .0 * 1.8 .7 257 DEADMAN HILL 10220 1.0 .1 1000* 1.8 .9 200 ----- ----- Basin Index (%) 1400* 225 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 -M .0 * 2.1 .8 262 DIVIDE PEAK 8880 1.7 .0 * 3.4 1.3 262 ELK RIVER 8700 .7 .0 * 1.8 1.0 180 LITTLE SNAKE RIVER 8915 1.3 .0 * 2.9 1.8 161 OLD BATTLE 10000 2.4 .5 480* 2.6 1.6 162 SAGE CREEK BASIN 7850 .9 .0 * 2.4 1.0 240 SANDSTONE RS 8150 1.2 .0 * 2.1 .9 233 WHISKEY PARK 8950 1.9 .0 * 3.1 1.2 258 ----- ----- Basin Index (%) 2020* 212 UPPER GREEN RIVER BIG SANDY OPENING 9080 .6 .0 * .8 .7 114 BLIND BULL SUM 8650 .1 .1 100* .7 .7 100 EAST RIM DIVIDE 7930 .0 .0 * .6 .5 120 ELKHART PARK G.S. 9400 .4 .0 * .8 .7 114 GROS VENTRE SUMMIT 8750 1.2 .3 400* 1.1 .6 183 GUNSIGHT PASS 9820 1.5 .0 * 1.6 .9 178 KENDALL R.S. 7740 .0 .0 * .6 .5 120 LOOMIS PARK 8240 .0 .0 * .8 .6 133 NEW FORK LAKE 8340 .0 .0 * .4 .5 80 POCKET CREEK 9360 1.2 -M * 1.4 -M * SNIDER BASIN 8060 .0 .0 * .4 .4 100 SPRING CREEK DIVIDE 9000 .0 .0 * .5 .7 71 TRIPLE PEAK 8500 .0 .0 * .7 .7 100 ----- ----- Basin Index (%) 950* 120 LOWER GREEN RIVER BLACKS FORK JCT 8870 -M -M * 1.1 -M * BUCK PASTURE 9700 .2 -M * 1.4 -M * EF BLACKS FORK GS 9360 .3 -M * 1.0 -M * HAMS FORK 7840 .0 .0 * 1.0 .5 200 HEWINTA 9519 -M .0 * 1.3 .8 162 HICKERSON PARK 9145 .0 .0 * 1.1 .7 157 HOLE-IN-ROCK 9150 .0 .0 * .7 .8 88 INDIAN CREEK 9425 .3 .3 100* .9 .7 129 KELLEY R.S. 8180 .3 .0 * .8 .6 133 SPIRIT LK 10235 .7 -M * 1.6 -M * STEEL CREEK PARK 10200 .1 .2 50* 1.5 1.0 150 ----- ----- Basin Index (%) 140* 143 UPPER BEAR RIVER BEAR RIVER RS 8777 .0 -M * 1.1 -M * BUG LAKE 7950 .4 .0 * .9 .8 112 BURTS MILLER RANCH 8000 .2 -M * .4 -M * CHALK CREEK #1 8993 .5 .0 * 1.7 1.1 155 HAYDEN FORK 9212 .1 .0 * 1.6 1.0 160 KELLEY R.S. 8180 .3 .0 * .8 .6 133 LILY LAKE 9156 -M .0 * 1.5 1.0 150 MONTE CRISTO 8960 .7 .0 * 1.3 1.0 130 SALT RIVER SUMMIT 7760 .0 .0 * .9 .6 150 ----- ----- Basin Index (%) * 143 ----------------------------------------------------------------------------- -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.