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 SATURDAY: OCTOBER 13 , 2007 ----------------------------------------------------------------------------- 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* 1.7 .8 212 COTTONWOOD CREEK 7600 .0 .1 0* 1.6 1.2 133 GRANITE CREEK 6770 .1 .1 100* 1.4 .7 200 GRASSY LAKE 7265 .2 .3 67* 1.7 1.4 121 GROS VENTRE SUMMIT 8750 .8 .5 160* 1.7 .7 243 LEWIS LAKE DIVIDE 7850 .2 .1 200* 1.2 1.3 92 PHILLIPS BENCH 8200 .0 .2 0* 1.4 1.0 140 SALT RIVER SUMMIT 7600 .1 .0 * 1.2 .8 150 SNAKE RIVER STATION 6920 .1 .0 * 1.7 .9 189 SPRING CREEK DIVIDE 9000 .1 .3 33* 1.0 1.0 100 THUMB DIVIDE 7980 .1 .1 100* 2.0 .8 250 TOGWOTEE PASS 9580 1.6 .9 178* 2.4 1.1 218 TWO OCEAN PLATEAU 9240 2.1 1.0 210* 2.8 1.2 233 WILLOW CREEK 8450 .1 .3 33* 1.9 1.5 127 ----- ----- Basin wide percent of average 135* 165 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 2.0 1.2 167* 2.0 .9 222 BLACK BEAR 8170 1.1 .7 157* 2.3 1.4 164 CANYON 8090 .6 .2 300* 1.9 .7 271 FISHER CREEK 9100 2.7 .9 300* 3.1 1.3 238 MADISON PLATEAU 7750 .9 .4 225* 2.2 1.0 220 NORTHEAST ENTRANCE 7350 -M .1 * -M .6 * PARKER PEAK 9400 1.7 1.1 155* 2.6 .9 289 SYLVAN LAKE 8420 .2 .8 25* 2.1 1.0 210 THUMB DIVIDE 7980 .1 .1 100* 2.0 .8 250 TWO OCEAN PLATEAU 9240 2.1 1.0 210* 2.8 1.2 233 WHISKEY CREEK 6800 .2 .1 200* 2.4 .9 267 WHITE MILL 8700 1.9 .6 317* 2.3 1.1 209 WOLVERINE 7650 .1 .1 100* 1.6 .7 229 ----- ----- Basin wide percent of average 189* 229 WIND RIVER BURROUGHS CREEK 8750 .3 .3 100* 1.4 .7 200 COLD SPRINGS 9630 .1 .2 50* 1.4 .8 175 DEER PARK 9700 .6 .7 86* 2.0 1.0 200 HOBBS PARK 10100 .6 .6 100* 2.3 .9 256 LITTLE WARM 9370 .1 .4 25* 1.2 .7 171 SOUTH PASS 9040 .1 .4 25* 1.1 .9 122 ST. LAWRENCE ALT 8620 .2 .1 200* 1.0 .7 143 TOGWOTEE PASS 9580 1.6 .9 178* 2.4 1.1 218 TOWNSEND CREEK 8700 .1 .3 33* 1.5 .9 167 ----- ----- Basin wide percent of average 95* 186 BIGHORN BASIN BALD MTN. 9380 1.3 1.4 93* 2.2 1.0 220 BEAR TRAP MEADOW 8200 .1 .2 50* .7 .7 100 BLACKWATER 9780 1.8 1.4 129* 2.2 1.1 200 BONE SPRINGS DIV 9350 -M 1.2 * -M 1.0 * EVENING STAR 9200 1.7 1.1 155* 2.5 1.1 227 GRAVE SPRINGS 8550 .1 .2 50* 1.2 .9 133 KIRWIN 9550 1.8 .7 257* 2.7 .7 386 MARQUETTE 8760 .1 .8 12* 1.4 .9 156 MIDDLE POWDER 7760 .2 .5 40* .8 1.0 80 OWL CREEK 8975 .5 .3 167* 1.5 .5 300 POWDER RIVER PASS 9480 .1 .5 20* 1.6 .8 200 SHELL CREEK 9580 1.6 1.5 107* 2.4 .8 300 SYLVAN LAKE 8420 .2 .8 25* 2.1 1.0 210 SYLVAN ROAD 7120 .0 .1 0* 2.0 .9 222 TIMBER CREEK 7950 .5 .1 500* 1.9 .7 271 YOUNTS PEAK 8350 .9 .5 180* 1.9 .7 271 ----- ----- Basin wide percent of average 108* 212 SHOSHONE RIVER BLACKWATER 9780 1.8 1.4 129* 2.2 1.1 200 EVENING STAR 9200 1.7 1.1 155* 2.5 1.1 227 KIRWIN 9550 1.8 .7 257* 2.7 .7 386 MARQUETTE 8760 .1 .8 12* 1.4 .9 156 SYLVAN LAKE 8420 .2 .8 25* 2.1 1.0 210 SYLVAN ROAD 7120 .0 .1 0* 2.0 .9 222 YOUNTS PEAK 8350 .9 .5 180* 1.9 .7 271 ----- ----- Basin wide percent of average 120* 231 POWDER-TONGUE BEAR TRAP MEADOW 8200 .1 .2 50* .7 .7 100 BIG GOOSE 7990 .1 .3 33* 1.3 .9 144 BONE SPRINGS DIV 9350 -M 1.2 * -M 1.0 * BURGESS JUNCTION 7880 .0 .6 0* 1.1 .9 122 CLOUD PEAK RESERVOIR 9860 .2 .4 50* 1.6 1.0 160 DOME LAKE 8880 .0 .6 0* 1.8 1.0 180 GRAVE SPRINGS 8550 .1 .2 50* 1.2 .9 133 HANSEN SAWMILL 8360 .2 .2 100* 1.1 .7 157 MIDDLE POWDER 7760 .2 .5 40* .8 1.0 80 POWDER RIVER PASS 9480 .1 .5 20* 1.6 .8 200 SUCKER CREEK 8880 .1 .5 20* 1.2 1.0 120 TIE CREEK 6870 .0 .0 100* 1.0 1.0 100 ----- ----- Basin wide percent of average 27* 135 BELLE FOURCHE BLIND PARK 6890 .1 .0 * .7 1.0 70 COLE CANYON 5910 .0 .0 100* .8 -M * NORTH RAPID CREEK 6130 .0 .1 0* .7 1.0 70 ----- ----- Basin wide percent of average 0* 70 UPPER N. PLATTE RIVER COLUMBINE 9160 .1 .0 * 1.6 1.0 160 DIVIDE PEAK 8860 -M .6 * -M 1.1 * ELK RIVER 8700 .0 .1 0* 1.4 .9 156 JOE WRIGHT 10120 .3 .7 43* 1.5 1.4 107 NORTH FRENCH CREEK 10130 .2 1.2 17* 1.3 1.4 93 OLD BATTLE 9920 .3 1.0 30* 2.0 1.4 143 SAGE CREEK BASIN 7850 .0 .3 0* 1.0 .6 167 SOUTH BRUSH CREEK 8440 .2 .2 100* 1.3 1.0 130 TOWER 10500 .1 .9 11* 2.8 1.6 175 WEBBER SPRINGS 9250 .1 .4 25* 1.3 1.2 108 WILLOW CREEK PASS 9540 .3 .3 100* .8 .8 100 ----- ----- Basin wide percent of average 29* 133 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 .0 .8 0* .8 1.0 80 CASPER MTN. 7850 .1 .5 20* 1.2 1.0 120 DEADMAN HILL 10220 .6 .8 75* .6 1.0 60 DEER PARK 9700 .6 .7 86* 2.0 1.0 200 LAPRELE CREEK 8375 .0 .3 0* .7 .8 87 RENO HILL 8500 .1 .6 17* 1.0 1.0 100 ROACH 9700 .1 .3 33* .9 .9 100 SAND LAKE 10050 .6 1.2 50* 1.2 1.2 100 SOUTH PASS 9040 .1 .4 25* 1.1 .9 122 WINDY PEAK 7900 .0 .1 0* .4 .7 57 ----- ----- Basin wide percent of average 39* 104 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .1 .0 * .9 .8 112 DIVIDE PEAK 8860 -M .6 * -M 1.1 * OLD BATTLE 9920 .3 1.0 30* 2.0 1.4 143 SANDSTONE RS 8150 .0 .1 0* .8 .9 89 WHISKEY PARK 8950 .0 .4 0* 1.3 1.2 108 ----- ----- Basin wide percent of average 20* 116 UPPER GREEN RIVER BIG SANDY OPENING 9080 .2 .3 67* 1.3 .7 186 BLIND BULL SUM 8900 .0 .3 0* .9 .9 100 EAST RIM DIVIDE 7930 .0 .0 100* 1.2 .5 240 ELKHART PARK G.S. 9400 .0 .2 0* 1.4 .8 175 GROS VENTRE SUMMIT 8750 .8 .5 160* 1.7 .7 243 KENDALL R.S. 7740 .1 .0 * 1.1 .6 183 LOOMIS PARK 8240 .0 .2 0* 1.1 .7 157 NEW FORK LAKE 8340 .0 .0 100* 1.3 .6 217 SNIDER BASIN 8060 .3 .1 300* .6 .7 86 SPRING CREEK DIVIDE 9000 .1 .3 33* 1.0 1.0 100 TRIPLE PEAK 8500 .1 .2 50* 1.1 .9 122 ----- ----- Basin wide percent of average 71* 157 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100* .8 .6 133 HEWINTA 9500 .0 .3 0* 2.8 1.0 280 HICKERSON PARK 9100 .1 .0 * 2.3 .7 329 HOLE-IN-ROCK 9150 .0 .0 100* 2.3 .7 329 INDIAN CREEK 9425 .2 .3 67* 1.1 1.0 110 KELLEY R.S. 8180 .2 .2 100* 1.6 .9 178 STEEL CREEK PARK 10100 2.2 .7 314* 2.8 .9 311 ----- ----- Basin wide percent of average 173* 236 UPPER BEAR RIVER BUG LAKE 7950 .1 .5 20* .9 .9 100 HAYDEN FORK 9100 .1 .4 25* 1.3 1.0 130 KELLEY R.S. 8180 .2 .2 100* 1.6 .9 178 LILY LAKE 9050 .0 .4 0* 2.0 1.0 200 MONTE CRISTO 8960 .2 .6 33* 1.5 1.1 136 SALT RIVER SUMMIT 7600 .1 .0 * 1.2 .8 150 TRIAL LAKE 9960 .1 .7 14* .9 1.1 82 ----- ----- Basin wide percent of average 25* 138 ----------------------------------------------------------------------------- -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.