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 13 , 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 .7 114 BLACK BEAR 8170 1.4 .7 200* 1.6 1.5 107 BLIND BULL SUM 8650 .2 .1 200* .8 .8 100 COTTONWOOD CREEK 7670 .5 .0 * 1.1 1.0 110 EAST RIM DIVIDE 7930 .1 .0 * .6 .5 120 GRAND TARGHEE 9260 1.7 1.2 142* 1.9 2.4 79 GRANITE CREEK 6770 .1 .0 * .6 .6 100 GRASSY LAKE 7265 .2 .0 * 1.1 1.3 85 GROS VENTRE SUMMIT 8750 1.2 .3 400* 1.1 .7 157 GUNSIGHT PASS 9820 1.6 .0 * 1.8 .9 200 LEWIS LAKE DIVIDE 7850 .1 .0 * .9 1.1 82 PHILLIPS BENCH 8200 .0 .0 * .9 .8 112 SALT RIVER SUMMIT 7760 -M .0 * -M .7 * SNAKE RIVER STATION 6920 .2 .0 * .7 1.0 70 SPRING CREEK DIVIDE 9000 .1 .0 * .6 .7 86 THUMB DIVIDE 7980 .0 .0 * .6 1.0 60 TOGWOTEE PASS 9580 2.9 .9 322* 1.6 .9 178 TWO OCEAN PLATEAU 9240 2.3 1.1 209* 1.5 1.1 136 WILLOW CREEK 8380 .0 .0 * 1.6 1.3 123 YOUNTS PEAK 8350 -M .4 * -M .9 * ----- ----- Basin Index (%) 293* 108 MADISON-GALLATIN BLACK BEAR 8170 1.4 .7 200* 1.6 1.5 107 CANYON 7870 .7 .0 * 1.3 .8 162 MADISON PLATEAU 7750 .0 .3 0* 1.3 1.1 118 WEST YELLOWSTONE 6700 .0 .0 * .8 .9 89 WHISKEY CREEK 6800 .0 .0 * .8 1.0 80 ----- ----- Basin Index (%) 210* 109 YELLOWSTONE BEARTOOTH LAKE 9360 1.8 1.0 180* .6 .9 67 BURNT MTN 5880 .9 .0 * 3.2 2.2 145 CANYON 7870 .7 .0 * 1.3 .8 162 COLE CREEK 7850 2.3 .9 256* 2.1 1.4 150 EVENING STAR 9200 2.1 .7 300* 1.4 1.2 117 FISHER CREEK 9100 2.4 .8 300* 1.1 1.3 85 NORTHEAST ENTRANCE 7350 .2 .0 * .5 .8 62 PARKER PEAK 9400 2.1 .9 233* 1.1 1.2 92 SYLVAN LAKE 8420 .5 .3 167* 1.4 1.2 117 THUMB DIVIDE 7980 .0 .0 * .6 1.0 60 TWO OCEAN PLATEAU 9240 2.3 1.1 209* 1.5 1.1 136 WHITE MILL 8700 1.6 .7 229* .8 1.1 73 WOLVERINE 7650 .0 .0 * .6 .8 75 ----- ----- Basin Index (%) 264* 108 WIND RIVER BURROUGHS CREEK 8750 -M .0 * -M .8 * CASTLE CREEK 8400 .1 -M * 1.3 -M * COLD SPRINGS 9630 1.4 .0 * 2.5 .8 312 DEER PARK 9700 1.9 .5 380* 2.3 1.3 177 HOBBS PARK 10100 2.4 .5 480* 2.5 .9 278 KIRWIN 9550 2.5 .5 500* 1.6 .8 200 LITTLE WARM 9370 1.8 .1 1800* 2.4 .7 343 OWL CREEK 8975 .9 .0 * 1.2 .6 200 SOUTH PASS 9040 1.3 .0 * 2.1 .9 233 ST. LAWRENCE ALT 8620 .3 .0 * 1.9 .8 238 TOGWOTEE PASS 9580 2.9 .9 322* 1.6 .9 178 TOWNSEND CREEK 8700 -M .0 * -M .9 * ----- ----- Basin Index (%) 616* 235 BIGHORN BASIN BALD MTN. 9380 2.5 1.4 179* 1.5 1.2 125 BEAR TRAP MEADOW 8200 1.3 .0 * 2.3 .7 329 BONE SPRINGS DIV 9350 1.7 1.1 155* 1.4 1.2 117 GRAVE SPRINGS 8550 2.1 .0 * 2.8 1.1 255 KIRWIN 9550 2.5 .5 500* 1.6 .8 200 MARQUETTE 8760 2.7 -M * 3.2 -M * MIDDLE POWDER 7760 3.2 .2 1600* 3.1 1.1 282 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 (%) 433* 204 SHOSHONE RIVER BLACKWATER 9780 3.7 1.0 370* 1.7 1.2 142 EVENING STAR 9200 2.1 .7 300* 1.4 1.2 117 MARQUETTE 8760 2.7 -M * 3.2 -M * SYLVAN ROAD 7120 .0 .0 * 1.4 .9 156 YOUNTS PEAK 8350 -M .4 * -M .9 * ----- ----- Basin Index (%) 341* 136 POWDER RIVER BEAR TRAP MEADOW 8200 1.3 .0 * 2.3 .7 329 CLOUD PEAK RESERVOIR 9860 2.5 .2 1250* 3.3 1.2 275 GRAVE SPRINGS 8550 2.1 .0 * 2.8 1.1 255 HANSEN SAWMILL 8360 1.8 .0 * 2.8 .8 350 MIDDLE POWDER 7760 3.2 .2 1600* 3.1 1.1 282 POWDER RIVER PASS 9480 1.9 .1 1900* 1.9 .9 211 SOLDIER PARK 8720 1.4 -M * 2.7 -M * ----- ----- Basin Index (%) 2560* 279 TONGUE RIVER BIG GOOSE 7990 1.6 .2 800* 2.8 1.2 233 BONE SPRINGS DIV 9350 1.7 1.1 155* 1.4 1.2 117 BURGESS JUNCTION 7880 1.2 .3 400* 2.1 1.1 191 DOME LAKE 8880 1.8 .5 360* 2.7 1.2 225 LITTLE GOOSE 8870 2.3 -M * 3.5 -M * SUCKER CREEK 8880 2.1 .3 700* 2.6 1.2 217 TIE CREEK 6870 .7 .0 * 2.7 1.4 193 ----- ----- Basin Index (%) 379* 196 BELLE FOURCHE COLE CANYON 5910 -M .0 * -M 1.1 * ----- ----- Basin Index (%) * * CHEYENNE RIVER BASIN BLIND PARK 6890 -M .0 * 5.6 1.0 560 NORTH RAPID CREEK 6130 3.9 .0 * -M .9 * ----- ----- Basin Index (%) * 560 UPPER N. PLATTE ARAPAHO RIDGE 10960 1.4 .4 350* 2.1 1.2 175 BLACKHALL MTN 9820 1.6 -M * 2.6 -M * COLUMBINE 9160 .8 .0 * 2.2 1.1 200 DIVIDE PEAK 8880 1.8 .0 * 3.5 1.4 250 JOE WRIGHT 10120 .3 .4 75* 2.2 1.4 157 LAPRELE CREEK 8375 .4 .0 * 2.0 .8 250 MED BOW 10500 2.7 -M * 3.3 -M * NORTH FRENCH CREEK 10130 -M .5 * -M 1.3 * NEVER SUMMER 10280 1.2 .5 240* 1.8 -M * OLD BATTLE 10000 2.4 .6 400* 2.9 1.7 171 RAWAH 9020 .9 .0 * 2.7 1.0 270 SAGE CREEK BASIN 7850 .7 .0 * 2.4 1.0 240 SAND LAKE 10050 2.5 .6 417* 2.8 1.3 215 SOUTH BRUSH CREEK 8440 1.5 .0 * -M 1.0 * TOWER 10500 2.7 .9 300* 3.2 1.7 188 WEBBER SPRINGS 9250 .7 .0 * 2.3 1.3 177 WILLOW CREEK PASS 9540 1.0 .0 * 1.5 .7 214 ZIRKEL 9340 -M .0 * 1.9 1.9 100 ----- ----- Basin Index (%) 538* 192 SWEETWATER DEER PARK 9700 1.9 .5 380* 2.3 1.3 177 LARSEN CREEK 9000 .4 -M * 1.6 -M * SOUTH PASS 9040 1.3 .0 * 2.1 .9 233 ----- ----- Basin Index (%) 640* 200 LOWER N. PLATTE CASPER MTN. 7900 -M .1 * -M 1.1 * LAPRELE CREEK 8375 .4 .0 * 2.0 .8 250 RENO HILL 8400 -M .0 * -M 1.0 * WINDY PEAK 7900 .2 .0 * 2.1 .8 262 ----- ----- Basin Index (%) * 256 LARAMIE RIVER BROOKLYN LAKE 10240 1.0 .0 * 1.6 .9 178 CINNABAR PARK 9574 1.3 .0 * 2.4 1.2 200 CROW CREEK 8330 .4 .0 * 1.8 .8 225 DEADMAN HILL 10220 .9 .3 300* 1.8 1.0 180 RAWAH 9020 .9 .0 * 2.7 1.0 270 ROACH 9700 -M .0 * -M 1.0 * ----- ----- Basin Index (%) 1500* 210 S. PLATTE BLACK MOUNTAIN 8920 .2 -M * 1.2 -M * CROW CREEK 8330 .4 .0 * 1.8 .8 225 DEADMAN HILL 10220 .9 .3 300* 1.8 1.0 180 ----- ----- Basin Index (%) 433* 200 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 -M .0 * 2.2 .8 275 DIVIDE PEAK 8880 1.8 .0 * 3.5 1.4 250 ELK RIVER 8700 .6 .0 * 1.8 1.1 164 LITTLE SNAKE RIVER 8915 1.1 .0 * 2.9 1.8 161 OLD BATTLE 10000 2.4 .6 400* 2.9 1.7 171 SAGE CREEK BASIN 7850 .7 .0 * 2.4 1.0 240 SANDSTONE RS 8150 1.2 .0 * 2.2 .9 244 WHISKEY PARK 8950 1.8 .0 * 3.2 1.2 267 ----- ----- Basin Index (%) 1600* 213 UPPER GREEN RIVER BIG SANDY OPENING 9080 .7 .0 * .8 .7 114 BLIND BULL SUM 8650 .2 .1 200* .8 .8 100 EAST RIM DIVIDE 7930 .1 .0 * .6 .5 120 ELKHART PARK G.S. 9400 .6 .0 * 1.0 .8 125 GROS VENTRE SUMMIT 8750 1.2 .3 400* 1.1 .7 157 GUNSIGHT PASS 9820 1.6 .0 * 1.8 .9 200 KENDALL R.S. 7740 .0 .0 * .7 .5 140 LOOMIS PARK 8240 .2 .0 * .8 .7 114 NEW FORK LAKE 8340 .2 .0 * .4 .5 80 POCKET CREEK 9360 1.4 -M * 1.5 -M * SNIDER BASIN 8060 .1 .0 * .6 .5 120 SPRING CREEK DIVIDE 9000 .1 .0 * .6 .7 86 TRIPLE PEAK 8500 .1 .0 * .8 .8 100 ----- ----- Basin Index (%) 1275* 123 LOWER GREEN RIVER BLACKS FORK JCT 8870 -M -M * 1.1 -M * BUCK PASTURE 9700 .4 -M * 1.4 -M * EF BLACKS FORK GS 9360 .4 -M * 1.2 -M * HAMS FORK 7840 .0 .0 * 1.1 .5 220 HEWINTA 9519 .0 .0 * 1.4 .8 175 HICKERSON PARK 9145 .4 .0 * 1.3 .7 186 HOLE-IN-ROCK 9150 .0 .0 * .8 .8 100 INDIAN CREEK 9425 .4 .4 100* 1.0 .8 125 KELLEY R.S. 8180 .4 .0 * 1.0 .7 143 SPIRIT LK 10235 .8 -M * 1.6 -M * STEEL CREEK PARK 10200 .1 .3 33* 1.5 1.0 150 ----- ----- Basin Index (%) 186* 153 UPPER BEAR RIVER BEAR RIVER RS 8777 .0 -M * 1.0 -M * BUG LAKE 7950 .6 .0 * 1.0 .9 111 BURTS MILLER RANCH 8000 .3 -M * .5 -M * CHALK CREEK #1 8993 .7 .0 * 1.7 1.2 142 HAYDEN FORK 9212 .1 .0 * 1.6 1.0 160 KELLEY R.S. 8180 .4 .0 * 1.0 .7 143 LILY LAKE 9156 .0 .0 * 1.5 1.0 150 MONTE CRISTO 8960 .7 .0 * 1.5 1.0 150 SALT RIVER SUMMIT 7760 -M .0 * -M .7 * ----- ----- 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.