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 16 , 2011 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .1 .1 100* 2.2 .9 244 COTTONWOOD CREEK 7670 .0 .1 0* 3.6 1.3 277 GRAND TARGHEE 9260 2.0 -M * 3.9 -M * GRANITE CREEK 6770 .0 .1 0* 1.7 .8 213 GRASSY LAKE 7265 .1 .3 33* 4.1 1.5 273 GROS VENTRE SUMMIT 8750 .1 .6 17* 1.6 .9 178 GUNSIGHT PASS 9820 .6 -M * 1.9 -M * LEWIS LAKE DIVIDE 7850 .2 .1 200* 3.2 1.3 246 PHILLIPS BENCH 8200 .1 .3 33* 1.7 1.0 170 SALT RIVER SUMMIT 7760 .1 .0 * 1.8 .9 200 SNAKE RIVER STATION 6920 .1 .0 * 2.6 1.1 236 SPRING CREEK DIVIDE 9000 1.4 .4 350* 3.0 1.0 300 THUMB DIVIDE 7980 .1 .2 50* 1.6 1.0 160 TOGWOTEE PASS 9580 1.1 1.1 100* 2.2 1.3 169 TWO OCEAN PLATEAU 9240 2.4 1.3 185* 2.7 1.4 193 WILLOW CREEK 8380 .1 .5 20* 3.4 1.7 200 ----- ----- Basin wide percent of average 116* 220 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 1.0 1.4 71* 1.7 1.0 170 BLACK BEAR 8170 2.0 .9 222* 4.3 1.4 307 CANYON 7870 .0 .2 0* 1.6 .8 200 FISHER CREEK 9100 1.2 1.0 120* 2.8 1.4 200 MADISON PLATEAU 7750 .0 .5 0* 3.3 1.2 275 NORTHEAST ENTRANCE 7350 .0 .1 0* 1.1 .8 138 PARKER PEAK 9400 .9 1.4 64* 1.7 1.2 142 SYLVAN LAKE 8420 .2 .9 22* 2.4 1.2 200 THUMB DIVIDE 7980 .1 .2 50* 1.6 1.0 160 TWO OCEAN PLATEAU 9240 2.4 1.3 185* 2.7 1.4 193 WHISKEY CREEK 6800 .2 .1 200* 3.3 1.0 330 WHITE MILL 8700 .8 .8 100* 2.2 1.2 183 WOLVERINE 7650 .0 .1 0* 1.2 .9 133 ----- ----- Basin wide percent of average 99* 206 WIND RIVER BURROUGHS CREEK 8750 .2 .3 67* 1.2 .8 150 CASTLE CREEK 8400 .1 -M * .9 -M * COLD SPRINGS 9630 .1 .3 33* 1.6 .9 178 DEER PARK 9700 .9 .8 113* 2.4 1.0 240 HOBBS PARK 10100 1.8 .8 225* 2.3 1.0 230 LITTLE WARM 9370 .0 .5 0* 1.3 .8 163 SOUTH PASS 9040 1.0 .4 250* 2.1 .9 233 ST. LAWRENCE ALT 8620 .1 .2 50* 1.0 .8 125 TOGWOTEE PASS 9580 1.1 1.1 100* 2.2 1.3 169 TOWNSEND CREEK 8700 .3 .3 100* 2.3 1.1 209 ----- ----- Basin wide percent of average 117* 191 BIGHORN BASIN BALD MTN. 9380 2.5 1.6 156* 2.7 1.2 225 BEAR TRAP MEADOW 8200 -M .2 * 1.1 .9 122 BLACKWATER 9780 2.1 1.7 124* 2.3 1.3 177 BONE SPRINGS DIV 9350 2.7 1.3 208* 3.2 1.3 246 EVENING STAR 9200 .5 1.3 38* 2.1 1.3 162 GRAVE SPRINGS 8550 .5 .2 250* 1.4 1.2 117 KIRWIN 9550 1.5 .9 167* 2.3 .8 288 MARQUETTE 8760 .2 -M * 2.5 1.1 227 MIDDLE POWDER 7760 .9 .6 150* 3.1 1.3 238 OWL CREEK 8975 1.0 .4 250* 1.3 .6 217 POWDER RIVER PASS 9480 1.4 .5 280* 2.2 1.0 220 SHELL CREEK 9580 3.2 1.6 200* 2.9 1.0 290 SYLVAN LAKE 8420 .2 .9 22* 2.4 1.2 200 SYLVAN ROAD 7120 .0 .1 0* 1.1 .8 138 TIMBER CREEK 7950 .0 .3 0* 2.8 .8 350 YOUNTS PEAK 8350 .0 .6 0* 1.4 .9 156 ----- ----- Basin wide percent of average 138* 208 SHOSHONE RIVER BLACKWATER 9780 2.1 1.7 124* 2.3 1.3 177 EVENING STAR 9200 .5 1.3 38* 2.1 1.3 162 KIRWIN 9550 1.5 .9 167* 2.3 .8 288 MARQUETTE 8760 .2 -M * 2.5 1.1 227 SYLVAN LAKE 8420 .2 .9 22* 2.4 1.2 200 SYLVAN ROAD 7120 .0 .1 0* 1.1 .8 138 YOUNTS PEAK 8350 .0 .6 0* 1.4 .9 156 ----- ----- Basin wide percent of average 78* 191 POWDER-TONGUE BEAR TRAP MEADOW 8200 -M .2 * 1.1 .9 122 BIG GOOSE 7990 1.5 .4 375* 3.4 1.1 309 BONE SPRINGS DIV 9350 2.7 1.3 208* 3.2 1.3 246 BURGESS JUNCTION 7880 1.5 .7 214* 3.2 1.1 291 CLOUD PEAK RESERVOIR 9860 1.4 .6 233* 2.8 1.4 200 DOME LAKE 8880 2.0 .8 250* 3.6 1.3 277 GRAVE SPRINGS 8550 .5 .2 250* 1.4 1.2 117 HANSEN SAWMILL 8360 .0 .3 0* 1.4 .9 156 LITTLE GOOSE 8870 1.5 -M * 3.7 -M * MIDDLE POWDER 7760 .9 .6 150* 3.1 1.3 238 POWDER RIVER PASS 9480 1.4 .5 280* 2.2 1.0 220 SOLDIER PARK 8720 .0 -M * 2.1 -M * SUCKER CREEK 8880 2.3 .6 383* 3.2 1.2 267 TIE CREEK 6870 .0 .1 0* 3.8 1.4 271 ----- ----- Basin wide percent of average 233* 230 BELLE FOURCHE BLIND PARK 6890 .0 .0 100* .7 1.2 58 COLE CANYON 5910 .0 .4 0* 1.2 .9 133 NORTH RAPID CREEK 6130 .0 .2 0* .4 1.3 31 ----- ----- Basin wide percent of average 0* 68 UPPER N. PLATTE RIVER BLACKHALL MTN 9820 1.5 -M * 2.5 -M * CINNABAR PARK 9574 .7 .3 233* 1.9 1.0 190 COLUMBINE 9160 .1 .0 * 1.4 1.0 140 DIVIDE PEAK 8880 .1 .8 13* 1.9 1.3 146 ELK RIVER 8700 .0 .2 0* 1.4 1.0 140 JOE WRIGHT 10120 .0 .9 0* 1.4 1.6 88 NORTH FRENCH CREEK 10130 1.3 1.5 87* 2.1 1.4 150 OLD BATTLE 10000 1.6 1.2 133* 2.4 1.5 160 SAGE CREEK BASIN 7850 .0 .4 0* 1.3 .7 186 SOUTH BRUSH CREEK 8440 .1 .2 50* 1.7 1.2 142 TOWER 10500 .5 1.1 45* 2.2 1.6 138 WEBBER SPRINGS 9250 .2 .6 33* 2.1 1.4 150 WILLOW CREEK PASS 9540 .1 .4 25* 5.0 .9 556 ----- ----- Basin wide percent of average 62* 170 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .5 .9 56* 2.0 1.1 182 CASPER MTN. 7900 1.5 .7 214* 3.4 1.2 283 DEADMAN HILL 10220 .8 1.0 80* 1.5 1.2 125 DEER PARK 9700 .9 .8 113* 2.4 1.0 240 LAPRELE CREEK 8375 .0 .3 0* 1.8 .8 225 RENO HILL 8400 1.4 .8 175* 2.4 1.1 218 ROACH 9700 1.0 .3 333* 1.9 1.1 173 SAND LAKE 10050 1.8 1.4 129* 2.0 1.4 143 SOUTH PASS 9040 1.0 .4 250* 2.1 .9 233 WINDY PEAK 7900 .1 .1 100* 1.1 .8 138 ----- ----- Basin wide percent of average 134* 194 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .1 .0 * 1.0 .8 125 DIVIDE PEAK 8880 .1 .8 13* 1.9 1.3 146 OLD BATTLE 10000 1.6 1.2 133* 2.4 1.5 160 SANDSTONE RS 8150 .0 .1 0* .9 1.0 90 WHISKEY PARK 8950 .0 .6 0* 1.9 1.4 136 ----- ----- Basin wide percent of average 67* 135 UPPER GREEN RIVER BIG SANDY OPENING 9080 .8 .4 200* 1.8 .8 225 BLIND BULL SUM 8650 .7 .5 140* 1.3 .9 144 EAST RIM DIVIDE 7930 .2 .1 200* 1.4 .6 233 ELKHART PARK G.S. 9400 .7 .3 233* 2.2 .9 244 GROS VENTRE SUMMIT 8750 .1 .6 17* 1.6 .9 178 GUNSIGHT PASS 9820 .6 -M * 1.9 -M * KENDALL R.S. 7740 .1 .0 * 1.8 .7 257 LOOMIS PARK 8240 .1 .3 33* 1.7 .8 213 NEW FORK LAKE 8340 .1 .0 * 1.8 .7 257 POCKET CREEK 9360 1.2 -M * 2.4 -M * SNIDER BASIN 8060 .1 .2 50* 1.6 .6 267 SPRING CREEK DIVIDE 9000 1.4 .4 350* 3.0 1.0 300 TRIPLE PEAK 8500 .1 .3 33* 2.2 1.0 220 ----- ----- Basin wide percent of average 142* 229 LOWER GREEN RIVER HAMS FORK 7840 .2 .0 * 2.2 .6 367 HEWINTA 9519 .0 .4 0* 2.3 1.1 209 HICKERSON PARK 9145 -M .0 * -M .8 * HOLE-IN-ROCK 9150 .3 .0 * 2.7 .8 338 INDIAN CREEK 9425 1.8 .5 360* 2.9 1.1 264 KELLEY R.S. 8180 .2 .2 100* 2.5 .9 278 STEEL CREEK PARK 10200 -M .8 * -M 1.1 * ----- ----- Basin wide percent of average 227* 280 UPPER BEAR RIVER BUG LAKE 7950 .1 .5 20* 1.2 1.1 109 HAYDEN FORK 9212 .1 .4 25* 3.4 1.1 309 KELLEY R.S. 8180 .2 .2 100* 2.5 .9 278 LILY LAKE 9156 .1 .5 20* 2.3 1.1 209 MONTE CRISTO 8960 -M .7 * -M 1.3 * SALT RIVER SUMMIT 7760 .1 .0 * 1.8 .9 200 TRIAL LAKE 9992 .8 .9 89* 2.2 1.3 169 ----- ----- Basin wide percent of average 56* 209 ----------------------------------------------------------------------------- -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.