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 THURSDAY: OCTOBER 11 , 2007 ----------------------------------------------------------------------------- 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* 1.6 .7 229 COTTONWOOD CREEK 7600 .0 .1 0* 1.6 1.0 160 GRANITE CREEK 6770 .1 .1 100* 1.3 .6 217 GRASSY LAKE 7265 .1 .2 50* 1.5 1.1 136 GROS VENTRE SUMMIT 8750 .7 .4 175* 1.7 .6 283 LEWIS LAKE DIVIDE 7850 .2 .1 200* .9 1.1 82 PHILLIPS BENCH 8200 .0 .1 0* 1.3 .8 162 SALT RIVER SUMMIT 7600 .1 .0 * 1.1 .6 183 SNAKE RIVER STATION 6920 .0 .0 100* 1.7 .7 243 SPRING CREEK DIVIDE 9000 .1 .2 50* .9 .9 100 THUMB DIVIDE 7980 .1 .1 100* 2.0 .7 286 TOGWOTEE PASS 9580 1.5 .7 214* 2.4 .9 267 TWO OCEAN PLATEAU 9240 2.2 .9 244* 2.8 1.0 280 WILLOW CREEK 8450 .1 .3 33* 1.9 1.2 158 ----- ----- Basin wide percent of average 155* 191 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 2.0 1.0 200* 1.9 .7 271 BLACK BEAR 8170 1.0 .7 143* 2.2 1.2 183 CANYON 8090 .7 .2 350* 1.9 .6 317 FISHER CREEK 9100 2.8 .8 350* 3.1 1.1 282 MADISON PLATEAU 7750 .9 .3 300* 2.1 .8 262 NORTHEAST ENTRANCE 7350 -M .1 * -M .5 * PARKER PEAK 9400 1.7 1.0 170* 2.3 .8 287 SYLVAN LAKE 8420 .0 .8 0* 2.1 .9 233 THUMB DIVIDE 7980 .1 .1 100* 2.0 .7 286 TWO OCEAN PLATEAU 9240 2.2 .9 244* 2.8 1.0 280 WHISKEY CREEK 6800 .0 .1 0* 2.1 .7 300 WHITE MILL 8700 2.0 .6 333* 2.3 .9 256 WOLVERINE 7650 .0 .1 0* 1.5 .6 250 ----- ----- Basin wide percent of average 203* 263 WIND RIVER BURROUGHS CREEK 8750 .0 .3 0* 1.4 .5 280 COLD SPRINGS 9630 .0 .2 0* 1.4 .6 233 DEER PARK 9700 .8 .7 114* 2.0 .8 250 HOBBS PARK 10100 .6 .6 100* 2.2 .7 314 LITTLE WARM 9370 .0 .3 0* 1.2 .6 200 SOUTH PASS 9040 .0 .3 0* 1.3 .7 186 ST. LAWRENCE ALT 8620 .0 .1 0* 1.0 .6 167 TOGWOTEE PASS 9580 1.5 .7 214* 2.4 .9 267 TOWNSEND CREEK 8700 .0 .2 0* 1.6 .7 229 ----- ----- Basin wide percent of average 85* 238 BIGHORN BASIN BALD MTN. 9380 1.3 1.2 108* 2.1 .8 262 BEAR TRAP MEADOW 8200 .0 .2 0* .7 .6 117 BLACKWATER 9780 1.8 1.2 150* 2.2 .9 244 BONE SPRINGS DIV 9350 1.2 1.1 109* 2.0 .8 250 EVENING STAR 9200 1.8 1.0 180* 2.5 .9 278 GRAVE SPRINGS 8550 .0 .2 0* 1.1 .7 157 KIRWIN 9550 1.9 .7 271* 2.7 .6 450 MARQUETTE 8760 .0 .8 0* 1.3 .8 162 MIDDLE POWDER 7760 .0 .5 0* .8 .9 89 OWL CREEK 8975 .0 .3 0* 1.5 .4 375 POWDER RIVER PASS 9480 .0 .4 0* 1.7 .6 283 SHELL CREEK 9580 1.7 1.3 131* 2.5 .7 357 SYLVAN LAKE 8420 .0 .8 0* 2.1 .9 233 SYLVAN ROAD 7120 .0 .1 0* 2.0 .7 286 TIMBER CREEK 7950 .7 .1 700* 2.0 .5 400 YOUNTS PEAK 8350 .9 .5 180* 2.0 .6 333 ----- ----- Basin wide percent of average 109* 256 SHOSHONE RIVER BLACKWATER 9780 1.8 1.2 150* 2.2 .9 244 EVENING STAR 9200 1.8 1.0 180* 2.5 .9 278 KIRWIN 9550 1.9 .7 271* 2.7 .6 450 MARQUETTE 8760 .0 .8 0* 1.3 .8 162 SYLVAN LAKE 8420 .0 .8 0* 2.1 .9 233 SYLVAN ROAD 7120 .0 .1 0* 2.0 .7 286 YOUNTS PEAK 8350 .9 .5 180* 2.0 .6 333 ----- ----- Basin wide percent of average 125* 274 POWDER-TONGUE BEAR TRAP MEADOW 8200 .0 .2 0* .7 .6 117 BIG GOOSE 7990 .0 .2 0* 1.5 .7 214 BONE SPRINGS DIV 9350 1.2 1.1 109* 2.0 .8 250 BURGESS JUNCTION 7880 .0 .5 0* 1.2 .7 171 CLOUD PEAK RESERVOIR 9860 .0 .3 0* 1.7 .9 189 DOME LAKE 8880 .0 .6 0* 1.9 .8 237 GRAVE SPRINGS 8550 .0 .2 0* 1.1 .7 157 HANSEN SAWMILL 8360 .0 .2 0* 1.2 .6 200 MIDDLE POWDER 7760 .0 .5 0* .8 .9 89 POWDER RIVER PASS 9480 .0 .4 0* 1.7 .6 283 SUCKER CREEK 8880 .0 .4 0* 1.2 .8 150 TIE CREEK 6870 .0 .0 100* .9 .8 112 ----- ----- Basin wide percent of average 26* 179 BELLE FOURCHE BLIND PARK 6890 .0 .0 100* .7 .9 78 COLE CANYON 5910 .0 .0 100* .8 -M * NORTH RAPID CREEK 6130 .0 .1 0* .7 .8 87 ----- ----- Basin wide percent of average 0* 82 UPPER N. PLATTE RIVER COLUMBINE 9160 .1 .0 * 1.6 .8 200 DIVIDE PEAK 8860 -M .5 * -M .9 * ELK RIVER 8700 .0 .1 0* 1.2 .7 171 JOE WRIGHT 10120 .3 .6 50* 1.6 1.1 145 NORTH FRENCH CREEK 10130 .2 1.0 20* 1.3 1.1 118 OLD BATTLE 9920 .6 .8 75* 2.1 1.2 175 SAGE CREEK BASIN 7850 .0 .2 0* 1.0 .5 200 SOUTH BRUSH CREEK 8440 .2 .1 200* 1.3 .9 144 TOWER 10500 .1 .7 14* 2.5 1.3 192 WEBBER SPRINGS 9250 .0 .4 0* 1.3 1.0 130 WILLOW CREEK PASS 9540 .2 .2 100* .8 .7 114 ----- ----- Basin wide percent of average 39* 158 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 .0 .7 0* .7 .8 87 CASPER MTN. 7850 .2 .4 50* 1.2 .8 150 DEADMAN HILL 10220 1.0 .7 143* .6 .8 75 DEER PARK 9700 .8 .7 114* 2.0 .8 250 LAPRELE CREEK 8375 .0 .2 0* .7 .6 117 RENO HILL 8500 .1 .5 20* 1.0 .8 125 ROACH 9700 .1 .2 50* .8 .8 100 SAND LAKE 10050 .7 1.0 70* 1.2 1.0 120 SOUTH PASS 9040 .0 .3 0* 1.3 .7 186 WINDY PEAK 7900 .0 .1 0* .3 .6 50 ----- ----- Basin wide percent of average 60* 127 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .1 .0 * .9 .6 150 DIVIDE PEAK 8860 -M .5 * -M .9 * OLD BATTLE 9920 .6 .8 75* 2.1 1.2 175 SANDSTONE RS 8150 .0 .1 0* .8 .8 100 WHISKEY PARK 8950 .0 .4 0* 1.3 1.0 130 ----- ----- Basin wide percent of average 46* 142 UPPER GREEN RIVER BIG SANDY OPENING 9080 .1 .3 33* 1.2 .6 200 BLIND BULL SUM 8900 .1 .3 33* .9 .7 129 EAST RIM DIVIDE 7930 .0 .0 100* 1.1 .5 220 ELKHART PARK G.S. 9400 .0 .1 0* 1.2 .6 200 GROS VENTRE SUMMIT 8750 .7 .4 175* 1.7 .6 283 KENDALL R.S. 7740 .1 .0 * 1.0 .5 200 LOOMIS PARK 8240 .0 .1 0* 1.1 .6 183 NEW FORK LAKE 8340 .0 .0 100* 1.1 .5 220 SNIDER BASIN 8060 .3 .1 300* .4 .5 80 SPRING CREEK DIVIDE 9000 .1 .2 50* .9 .9 100 TRIPLE PEAK 8500 .1 .1 100* 1.0 .7 143 ----- ----- Basin wide percent of average 87* 173 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100* .8 .5 160 HEWINTA 9500 .0 .3 0* 2.8 .8 350 HICKERSON PARK 9100 .1 .0 * 2.2 .6 367 HOLE-IN-ROCK 9150 .0 .0 100* 2.3 .5 460 INDIAN CREEK 9425 .3 .3 100* 1.1 .9 122 KELLEY R.S. 8180 .3 .1 300* 1.5 .7 214 STEEL CREEK PARK 10100 -M .7 * -M .8 * ----- ----- Basin wide percent of average 86* 268 UPPER BEAR RIVER BUG LAKE 7950 .0 .4 0* .4 .8 50 HAYDEN FORK 9100 .1 .3 33* 1.3 .8 162 KELLEY R.S. 8180 .3 .1 300* 1.5 .7 214 LILY LAKE 9050 -M .3 * 1.9 .8 237 MONTE CRISTO 8960 .1 .6 17* 1.4 .9 156 SALT RIVER SUMMIT 7600 .1 .0 * 1.1 .6 183 TRIAL LAKE 9960 .0 .7 0* .9 .9 100 ----- ----- Basin wide percent of average 24* 155 ----------------------------------------------------------------------------- -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.