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 TUESDAY: OCTOBER 18 , 2011 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .0 .1 0* 3.2 1.0 320 COTTONWOOD CREEK 7670 .0 .2 0* 4.3 1.5 287 GRAND TARGHEE 9260 2.5 -M * 4.7 -M * GRANITE CREEK 6770 .0 .1 0* 2.3 .9 256 GRASSY LAKE 7265 .0 .4 0* 5.1 1.7 300 GROS VENTRE SUMMIT 8750 .3 .7 43* 1.8 1.0 180 GUNSIGHT PASS 9820 .8 -M * 2.1 -M * LEWIS LAKE DIVIDE 7850 .2 .2 100* 4.0 1.5 267 PHILLIPS BENCH 8200 .0 .4 0* 2.4 1.2 200 SALT RIVER SUMMIT 7760 -M .0 * -M 1.0 * SNAKE RIVER STATION 6920 .0 .1 0* 3.3 1.2 275 SPRING CREEK DIVIDE 9000 1.2 .5 240* 3.1 1.2 258 THUMB DIVIDE 7980 .0 .2 0* 2.2 1.1 200 TOGWOTEE PASS 9580 1.3 1.3 100* 2.8 1.4 200 TWO OCEAN PLATEAU 9240 3.1 1.5 207* 3.4 1.6 213 WILLOW CREEK 8380 .4 .6 67* 4.9 2.0 245 ----- ----- Basin wide percent of average 103* 247 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 1.1 1.6 69* 2.0 1.1 182 BLACK BEAR 8170 1.8 1.0 180* 4.7 1.7 276 CANYON 7870 .0 .3 0* 1.4 .9 156 FISHER CREEK 9100 1.5 1.1 136* 3.4 1.7 200 MADISON PLATEAU 7750 .0 .5 0* 3.6 1.4 257 NORTHEAST ENTRANCE 7350 .0 .1 0* 1.6 .9 178 PARKER PEAK 9400 .0 1.6 0* 2.0 1.3 154 SYLVAN LAKE 8420 .3 1.0 30* 3.5 1.4 250 THUMB DIVIDE 7980 .0 .2 0* 2.2 1.1 200 TWO OCEAN PLATEAU 9240 3.1 1.5 207* 3.4 1.6 213 WHISKEY CREEK 6800 .0 .2 0* 3.2 1.1 291 WHITE MILL 8700 .8 .8 100* 2.7 1.4 193 WOLVERINE 7650 .0 .2 0* 1.6 1.1 145 ----- ----- Basin wide percent of average 85* 211 WIND RIVER BURROUGHS CREEK 8750 .0 .4 0* 1.2 .9 133 CASTLE CREEK 8400 .0 -M * 1.1 -M * COLD SPRINGS 9630 .0 .4 0* 1.5 1.0 150 DEER PARK 9700 .7 1.0 70* 2.3 1.2 192 HOBBS PARK 10100 1.6 1.2 133* 2.3 1.2 192 LITTLE WARM 9370 .0 .5 0* 1.4 .9 156 SOUTH PASS 9040 .6 .6 100* 2.1 1.1 191 ST. LAWRENCE ALT 8620 .0 .4 0* 1.0 1.0 100 TOGWOTEE PASS 9580 1.3 1.3 100* 2.8 1.4 200 TOWNSEND CREEK 8700 .0 .6 0* 2.4 1.2 200 ----- ----- Basin wide percent of average 66* 172 BIGHORN BASIN BALD MTN. 9380 2.9 1.7 171* 3.1 1.4 221 BEAR TRAP MEADOW 8200 .5 .4 125* 1.5 1.0 150 BLACKWATER 9780 2.8 1.9 147* 2.9 1.4 207 BONE SPRINGS DIV 9350 3.2 1.5 213* 3.6 1.5 240 EVENING STAR 9200 .0 1.5 0* 2.7 1.4 193 GRAVE SPRINGS 8550 .4 .7 57* 1.8 1.3 138 KIRWIN 9550 1.5 1.0 150* 2.6 1.0 260 MARQUETTE 8760 .3 -M * 3.1 1.3 238 MIDDLE POWDER 7760 .9 .9 100* 3.8 1.5 253 OWL CREEK 8975 .0 .5 0* 1.3 .7 186 POWDER RIVER PASS 9480 1.8 .7 257* 2.7 1.1 245 SHELL CREEK 9580 3.7 1.8 206 3.4 1.2 283 SYLVAN LAKE 8420 .3 1.0 30* 3.5 1.4 250 SYLVAN ROAD 7120 .0 .2 0* 1.8 .9 200 TIMBER CREEK 7950 .0 .6 0 3.4 .9 378 YOUNTS PEAK 8350 .0 .6 0* 2.2 1.0 220 ----- ----- Basin wide percent of average 120* 228 SHOSHONE RIVER BLACKWATER 9780 2.8 1.9 147* 2.9 1.4 207 EVENING STAR 9200 .0 1.5 0* 2.7 1.4 193 KIRWIN 9550 1.5 1.0 150* 2.6 1.0 260 MARQUETTE 8760 .3 -M * 3.1 1.3 238 SYLVAN LAKE 8420 .3 1.0 30* 3.5 1.4 250 SYLVAN ROAD 7120 .0 .2 0* 1.8 .9 200 YOUNTS PEAK 8350 .0 .6 0* 2.2 1.0 220 ----- ----- Basin wide percent of average 74* 224 POWDER-TONGUE BEAR TRAP MEADOW 8200 .5 .4 125* 1.5 1.0 150 BIG GOOSE 7990 1.7 .4 425* 3.9 1.3 300 BONE SPRINGS DIV 9350 3.2 1.5 213* 3.6 1.5 240 BURGESS JUNCTION 7880 1.7 .9 189* 3.6 1.3 277 CLOUD PEAK RESERVOIR 9860 1.5 .8 188* 3.2 1.5 213 DOME LAKE 8880 2.3 1.0 230* 4.1 1.4 293 GRAVE SPRINGS 8550 .4 .7 57* 1.8 1.3 138 HANSEN SAWMILL 8360 .0 .4 0* 1.5 1.0 150 LITTLE GOOSE 8870 1.8 -M * 4.3 -M * MIDDLE POWDER 7760 .9 .9 100* 3.8 1.5 253 POWDER RIVER PASS 9480 1.8 .7 257* 2.7 1.1 245 SOLDIER PARK 8720 .0 -M * 2.3 -M * SUCKER CREEK 8880 2.4 .8 300* 3.6 1.4 257 TIE CREEK 6870 .0 .5 0* 4.1 1.5 273 ----- ----- Basin wide percent of average 182* 237 BELLE FOURCHE BLIND PARK 6890 .0 .2 0* 1.0 1.4 71 COLE CANYON 5910 .0 .4 0* 1.2 1.1 109 NORTH RAPID CREEK 6130 .0 .2 0* .5 1.4 36 ----- ----- Basin wide percent of average 0* 69 UPPER N. PLATTE RIVER BLACKHALL MTN 9820 1.7 -M * 3.2 -M * CINNABAR PARK 9574 .4 .5 80* 2.5 1.2 208 COLUMBINE 9160 .3 .1 300* 2.0 1.2 167 DIVIDE PEAK 8880 .1 .9 11* 2.4 1.5 160 ELK RIVER 8700 .0 .2 0* 2.0 1.2 167 JOE WRIGHT 10120 .0 1.1 0* 2.3 1.8 128 NORTH FRENCH CREEK 10130 1.9 1.6 119* 3.2 1.7 188 OLD BATTLE 10000 1.8 1.4 129* 3.0 1.8 167 SAGE CREEK BASIN 7850 .0 .5 0* 1.6 .8 200 SOUTH BRUSH CREEK 8440 .1 .2 50* 2.2 1.4 157 TOWER 10500 .7 1.3 54* 2.8 1.9 147 WEBBER SPRINGS 9250 .3 .7 43* 2.7 1.6 169 WILLOW CREEK PASS 9540 .3 .5 60* -M 1.1 * ----- ----- Basin wide percent of average 66* 166 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .5 1.1 45* 2.5 1.2 208 CASPER MTN. 7900 2.1 .8 263* 4.5 1.3 346 DEADMAN HILL 10220 .9 1.1 82* 2.0 1.3 154 DEER PARK 9700 .7 1.0 70* 2.3 1.2 192 LAPRELE CREEK 8375 .0 .4 0* 1.8 1.0 180 RENO HILL 8400 1.6 .9 178* 3.1 1.3 238 ROACH 9700 .7 .4 175* 2.2 1.2 183 SAND LAKE 10050 2.3 1.6 144* 3.0 1.6 188 SOUTH PASS 9040 .6 .6 100* 2.1 1.1 191 WINDY PEAK 7900 .0 .2 0* 1.1 .9 122 ----- ----- Basin wide percent of average 116* 203 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .1 .0 * 1.4 1.0 140 DIVIDE PEAK 8880 .1 .9 11* 2.4 1.5 160 OLD BATTLE 10000 1.8 1.4 129* 3.0 1.8 167 SANDSTONE RS 8150 -M .1 * 1.4 1.2 117 WHISKEY PARK 8950 .4 .7 57* 2.7 1.6 169 ----- ----- Basin wide percent of average 80* 154 UPPER GREEN RIVER BIG SANDY OPENING 9080 .7 .5 140* 1.7 1.0 170 BLIND BULL SUM 8650 .6 .6 100* 2.1 1.1 191 EAST RIM DIVIDE 7930 .2 .1 200* 1.9 .7 271 ELKHART PARK G.S. 9400 .7 .3 233* 2.6 1.1 236 GROS VENTRE SUMMIT 8750 .3 .7 43* 1.8 1.0 180 GUNSIGHT PASS 9820 .8 -M * 2.1 -M * KENDALL R.S. 7740 .1 .1 100* 2.1 .8 263 LOOMIS PARK 8240 .0 .3 0* 2.3 .9 256 NEW FORK LAKE 8340 .2 .1 200* 2.4 .8 300 POCKET CREEK 9360 1.1 -M * 2.5 -M * SNIDER BASIN 8060 .0 .2 0* 1.6 .7 229 SPRING CREEK DIVIDE 9000 1.2 .5 240* 3.1 1.2 258 TRIPLE PEAK 8500 .1 .4 25* 2.8 1.1 255 ----- ----- Basin wide percent of average 108* 235 LOWER GREEN RIVER HAMS FORK 7840 .1 .0 * 2.3 .7 329 HEWINTA 9519 -M .5 * 2.7 1.3 208 HICKERSON PARK 9145 -M .1 * -M .9 * HOLE-IN-ROCK 9150 .3 .1 300* 2.8 1.0 280 INDIAN CREEK 9425 1.9 .5 380* 2.9 1.2 242 KELLEY R.S. 8180 .4 .3 133* 2.8 1.1 255 STEEL CREEK PARK 10200 -M .9 * -M 1.2 * ----- ----- Basin wide percent of average 300* 255 UPPER BEAR RIVER BUG LAKE 7950 -M .6 * -M 1.3 * HAYDEN FORK 9212 .1 .4 25* 3.8 1.3 292 KELLEY R.S. 8180 .4 .3 133* 2.8 1.1 255 LILY LAKE 9156 .0 .5 0* 2.7 1.3 208 MONTE CRISTO 8960 -M .8 * -M 1.5 * SALT RIVER SUMMIT 7760 -M .0 * -M 1.0 * TRIAL LAKE 9992 .8 1.0 80* 2.4 1.4 171 ----- ----- Basin wide percent of average 59* 229 ----------------------------------------------------------------------------- -M = Missing data * = Data may not provide a valid measure of conditions. Units = inches for the Current and Average Snow Water Equivalent and Total Precipitation values If the Basin wide percent of average 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 Average represents the snow water equivalent found at selected SNOTEL sites in or near the basin compared to the average 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. Reference period for average conditions is 1971-2000. Provisional data, subject to revision. ---------------------------------------------------------------------------- -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.