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 WEDNESDAY: OCTOBER 16 , 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 * 1.4 1.0 140 BLACK BEAR 8170 1.7 1.1 155* 1.8 1.8 100 BLIND BULL SUM 8650 .6 .2 300* 1.4 1.0 140 COTTONWOOD CREEK 7670 .4 .0 * 1.6 1.3 123 EAST RIM DIVIDE 7930 .2 .0 * 1.1 .7 157 GRAND TARGHEE 9260 2.2 1.6 138* 2.4 2.7 89 GRANITE CREEK 6770 .1 .0 * 1.0 .9 111 GRASSY LAKE 7265 .1 .0 * 1.4 1.7 82 GROS VENTRE SUMMIT 8750 2.0 .6 333* 1.9 .9 211 GUNSIGHT PASS 9820 2.1 .1 2100* 2.2 1.2 183 LEWIS LAKE DIVIDE 7850 .0 .0 * 1.2 1.5 80 PHILLIPS BENCH 8200 .3 .0 * 1.3 1.1 118 SALT RIVER SUMMIT 7760 .0 .0 * 1.3 .9 144 SNAKE RIVER STATION 6920 .2 .0 * 1.0 1.3 77 SPRING CREEK DIVIDE 9000 .4 .1 400* 1.0 1.0 100 THUMB DIVIDE 7980 .1 .0 * 1.1 1.2 92 TOGWOTEE PASS 9580 3.3 1.3 254* 2.2 1.3 169 TWO OCEAN PLATEAU 9240 3.0 1.5 200* 2.1 1.4 150 WILLOW CREEK 8380 .3 .0 * 2.5 1.8 139 YOUNTS PEAK 8350 -M .5 * -M 1.1 * ----- ----- Basin Index (%) 262* 121 MADISON-GALLATIN BLACK BEAR 8170 1.7 1.1 155* 1.8 1.8 100 CANYON 7870 1.1 .1 1100* 1.7 1.0 170 MADISON PLATEAU 7750 .4 .4 100* 1.7 1.4 121 WEST YELLOWSTONE 6700 .1 .0 * 1.1 1.0 110 WHISKEY CREEK 6800 .2 .0 * 1.3 1.2 108 ----- ----- Basin Index (%) 219* 119 YELLOWSTONE BEARTOOTH LAKE 9360 2.0 1.2 167* .8 1.1 73 BURNT MTN 5880 -M .0 * 4.3 2.4 179 CANYON 7870 1.1 .1 1100* 1.7 1.0 170 COLE CREEK 7850 3.6 1.2 300* 3.2 1.8 178 EVENING STAR 9200 2.7 1.0 270* 2.0 1.6 125 FISHER CREEK 9100 2.7 1.2 225* 1.5 1.7 88 NORTHEAST ENTRANCE 7350 .1 .0 * .7 1.0 70 PARKER PEAK 9400 2.5 1.1 227* 1.7 1.5 113 SYLVAN LAKE 8420 1.0 .5 200* 1.9 1.6 119 THUMB DIVIDE 7980 .1 .0 * 1.1 1.2 92 TWO OCEAN PLATEAU 9240 3.0 1.5 200* 2.1 1.4 150 WHITE MILL 8700 1.9 1.0 190* 1.1 1.4 79 WOLVERINE 7650 .0 .0 * 1.0 1.0 100 ----- ----- Basin Index (%) 235* 124 WIND RIVER BURROUGHS CREEK 8750 -M .1 * -M 1.0 * CASTLE CREEK 8400 .3 -M * 1.5 -M * COLD SPRINGS 9630 2.2 .0 * -M 1.0 * DEER PARK 9700 2.0 .6 333* 2.3 1.5 153 HOBBS PARK 10100 3.3 .7 471* 3.1 1.1 282 KIRWIN 9550 3.1 .7 443* 2.2 1.0 220 LITTLE WARM 9370 2.4 .2 1200* 2.9 1.0 290 OWL CREEK 8975 1.2 .1 1200* 1.5 .7 214 SOUTH PASS 9040 1.3 .0 * 2.1 1.0 210 ST. LAWRENCE ALT 8620 .9 .0 * 2.7 .9 300 TOGWOTEE PASS 9580 3.3 1.3 254* 2.2 1.3 169 TOWNSEND CREEK 8700 -M .0 * -M 1.1 * ----- ----- Basin Index (%) 547* 224 BIGHORN BASIN BALD MTN. 9380 3.8 1.7 224* 2.6 1.5 173 BEAR TRAP MEADOW 8200 1.6 .1 1600* 2.7 .9 300 BONE SPRINGS DIV 9350 2.5 1.3 192* 2.1 1.4 150 GRAVE SPRINGS 8550 2.7 .0 * 3.4 1.2 283 KIRWIN 9550 3.1 .7 443* 2.2 1.0 220 MARQUETTE 8760 3.5 -M * 4.0 -M * MIDDLE POWDER 7760 -M .3 * 3.9 1.3 300 OWL CREEK 8975 1.2 .1 1200* 1.5 .7 214 POWDER RIVER PASS 9480 2.4 .3 800* 2.4 1.2 200 SHELL CREEK 9580 3.0 1.6 188* 2.1 1.3 162 TIMBER CREEK 7950 1.7 .0 * 3.0 1.2 250 ----- ----- Basin Index (%) 379* 221 SHOSHONE RIVER BLACKWATER 9780 4.1 1.3 315* 2.0 1.5 133 EVENING STAR 9200 2.7 1.0 270* 2.0 1.6 125 MARQUETTE 8760 3.5 -M * 4.0 -M * SYLVAN ROAD 7120 .2 .0 * 2.0 1.2 167 YOUNTS PEAK 8350 -M .5 * -M 1.1 * ----- ----- Basin Index (%) 304* 140 POWDER RIVER BEAR TRAP MEADOW 8200 1.6 .1 1600* 2.7 .9 300 CLOUD PEAK RESERVOIR 9860 2.5 .6 417* 3.2 1.5 213 GRAVE SPRINGS 8550 2.7 .0 * 3.4 1.2 283 HANSEN SAWMILL 8360 1.8 .0 * 3.1 1.0 310 MIDDLE POWDER 7760 -M .3 * 3.9 1.3 300 POWDER RIVER PASS 9480 2.4 .3 800* 2.4 1.2 200 SOLDIER PARK 8720 1.4 -M * 2.9 -M * ----- ----- Basin Index (%) 1100* 263 TONGUE RIVER BIG GOOSE 7990 2.3 .3 767* 3.5 1.5 233 BONE SPRINGS DIV 9350 2.5 1.3 192* 2.1 1.4 150 BURGESS JUNCTION 7880 2.3 .4 575* 3.1 1.3 238 DOME LAKE 8880 2.2 .7 314* 3.3 1.5 220 LITTLE GOOSE 8870 2.9 -M * 4.2 -M * SUCKER CREEK 8880 3.4 .6 567* 3.8 1.4 271 TIE CREEK 6870 1.4 .0 * 3.6 1.6 225 ----- ----- Basin Index (%) 427* 223 BELLE FOURCHE COLE CANYON 5910 -M .0 * -M 1.2 * ----- ----- Basin Index (%) * * CHEYENNE RIVER BASIN BLIND PARK 6890 -M .0 * -M 1.2 * NORTH RAPID CREEK 6130 4.2 .0 * -M 1.0 * ----- ----- Basin Index (%) * * UPPER N. PLATTE ARAPAHO RIDGE 10960 1.9 .8 238* 2.7 1.6 169 BLACKHALL MTN 9820 3.0 -M * 4.1 -M * COLUMBINE 9160 1.0 .0 * 2.7 1.4 193 DIVIDE PEAK 8880 2.3 .3 767* 4.4 1.6 275 JOE WRIGHT 10120 .7 .6 117* 3.6 1.8 200 LAPRELE CREEK 8375 .4 .0 * 2.4 .9 267 MED BOW 10500 3.6 -M * 4.2 -M * NORTH FRENCH CREEK 10130 -M .7 * -M 1.6 * NEVER SUMMER 10280 1.9 .6 317* 2.6 -M * OLD BATTLE 10000 3.1 .9 344* 3.6 2.1 171 RAWAH 9020 1.3 .0 * 3.4 1.2 283 SAGE CREEK BASIN 7850 .5 .0 * 2.7 1.1 245 SAND LAKE 10050 3.3 .9 367* 3.8 1.6 238 SOUTH BRUSH CREEK 8440 1.9 .0 * -M 1.2 * TOWER 10500 4.5 1.1 409* 4.9 2.1 233 WEBBER SPRINGS 9250 1.3 .0 * 3.1 1.6 194 WILLOW CREEK PASS 9540 1.4 .2 700* 1.8 .9 200 ZIRKEL 9340 -M .0 * 2.5 2.2 114 ----- ----- Basin Index (%) 472* 207 SWEETWATER DEER PARK 9700 2.0 .6 333* 2.3 1.5 153 LARSEN CREEK 9000 .5 -M * 1.8 -M * SOUTH PASS 9040 1.3 .0 * 2.1 1.0 210 ----- ----- Basin Index (%) 550* 176 LOWER N. PLATTE CASPER MTN. 7900 -M .1 * -M 1.3 * LAPRELE CREEK 8375 .4 .0 * 2.4 .9 267 RENO HILL 8400 -M .2 * -M 1.2 * WINDY PEAK 7900 .2 .0 * 2.3 .9 256 ----- ----- Basin Index (%) * 261 LARAMIE RIVER BROOKLYN LAKE 10240 1.2 .0 * 2.2 1.2 183 CINNABAR PARK 9574 1.5 .0 * 2.8 1.4 200 CROW CREEK 8330 .2 .0 * 2.1 1.1 191 DEADMAN HILL 10220 1.7 .7 243* 2.6 1.3 200 RAWAH 9020 1.3 .0 * 3.4 1.2 283 ROACH 9700 -M .0 * -M 1.2 * ----- ----- Basin Index (%) 843* 211 S. PLATTE BLACK MOUNTAIN 8920 .8 -M * 2.0 -M * CROW CREEK 8330 .2 .0 * 2.1 1.1 191 DEADMAN HILL 10220 1.7 .7 243* 2.6 1.3 200 ----- ----- Basin Index (%) 271* 196 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 -M .0 * 2.8 .9 311 DIVIDE PEAK 8880 2.3 .3 767* 4.4 1.6 275 ELK RIVER 8700 .8 .0 * 2.5 1.3 192 LITTLE SNAKE RIVER 8915 1.8 .0 * 4.1 2.1 195 OLD BATTLE 10000 3.1 .9 344* 3.6 2.1 171 SAGE CREEK BASIN 7850 .5 .0 * 2.7 1.1 245 SANDSTONE RS 8150 1.4 .0 * 3.0 1.0 300 WHISKEY PARK 8950 -M .0 * 4.5 1.4 321 ----- ----- Basin Index (%) 825* 240 UPPER GREEN RIVER BIG SANDY OPENING 9080 1.1 .3 367* 1.4 .9 156 BLIND BULL SUM 8650 .6 .2 300* 1.4 1.0 140 EAST RIM DIVIDE 7930 .2 .0 * 1.1 .7 157 ELKHART PARK G.S. 9400 1.1 .2 550* 1.4 1.0 140 GROS VENTRE SUMMIT 8750 2.0 .6 333* 1.9 .9 211 GUNSIGHT PASS 9820 2.1 .1 2100* 2.2 1.2 183 KENDALL R.S. 7740 .0 .0 * 1.1 .7 157 LOOMIS PARK 8240 .4 .0 * 1.3 .9 144 NEW FORK LAKE 8340 .4 .0 * .6 .7 86 POCKET CREEK 9360 2.1 -M * 2.4 -M * SNIDER BASIN 8060 .0 .0 * .8 .7 114 SPRING CREEK DIVIDE 9000 .4 .1 400* 1.0 1.0 100 TRIPLE PEAK 8500 .3 .0 * 1.2 1.0 120 ----- ----- Basin Index (%) 573* 144 LOWER GREEN RIVER BLACKS FORK JCT 8870 -M -M * 1.8 -M * BUCK PASTURE 9700 .6 -M * 2.3 -M * EF BLACKS FORK GS 9360 .5 -M * 1.7 -M * HAMS FORK 7840 .0 .0 * 1.4 .6 233 HEWINTA 9519 .0 .0 * 1.9 1.0 190 HICKERSON PARK 9145 -M .0 * 1.3 .8 162 HOLE-IN-ROCK 9150 .0 .0 * 1.2 .9 133 INDIAN CREEK 9425 .7 .6 117* 1.4 1.0 140 KELLEY R.S. 8180 .5 .0 * 1.4 .8 175 SPIRIT LK 10235 .9 -M * 1.9 -M * STEEL CREEK PARK 10200 .0 .5 0* 2.4 1.2 200 ----- ----- Basin Index (%) 109* 175 UPPER BEAR RIVER BEAR RIVER RS 8777 .2 -M * 1.7 -M * BUG LAKE 7950 .6 .0 * 1.4 1.2 117 BURTS MILLER RANCH 8000 .4 -M * .8 -M * CHALK CREEK #1 8993 1.0 .0 * 2.4 1.5 160 HAYDEN FORK 9212 .4 .0 * 2.5 1.2 208 KELLEY R.S. 8180 .5 .0 * 1.4 .8 175 LILY LAKE 9156 .7 .0 * 2.5 1.2 208 MONTE CRISTO 8960 .7 .0 * 1.6 1.4 114 SALT RIVER SUMMIT 7760 .0 .0 * 1.3 .9 144 ----- ----- Basin Index (%) * 160 ----------------------------------------------------------------------------- -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.