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 FRIDAY: OCTOBER 12 , 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 1.1 145 GRANITE CREEK 6770 .0 .1 0* 1.3 .6 217 GRASSY LAKE 7265 .1 .2 50* 1.5 1.2 125 GROS VENTRE SUMMIT 8750 .7 .5 140* 1.7 .7 243 LEWIS LAKE DIVIDE 7850 .1 .1 100* .9 1.2 75 PHILLIPS BENCH 8200 .0 .2 0* 1.3 .9 144 SALT RIVER SUMMIT 7600 .1 .0 * 1.1 .7 157 SNAKE RIVER STATION 6920 .0 .0 100* 1.6 .8 200 SPRING CREEK DIVIDE 9000 .1 .2 50* .9 1.0 90 THUMB DIVIDE 7980 .0 .1 0* 1.9 .7 271 TOGWOTEE PASS 9580 1.5 .8 188* 2.4 1.0 240 TWO OCEAN PLATEAU 9240 2.1 .9 233* 2.7 1.1 245 WILLOW CREEK 8450 .1 .3 33* 1.9 1.3 146 ----- ----- Basin wide percent of average 131* 172 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 1.9 1.1 173* 1.8 .8 225 BLACK BEAR 8170 1.2 .7 171* 2.2 1.3 169 CANYON 8090 .7 .2 350* 1.9 .7 271 FISHER CREEK 9100 2.8 .8 350* 3.1 1.2 258 MADISON PLATEAU 7750 .9 .4 225* 2.1 .9 233 NORTHEAST ENTRANCE 7350 -M .1 * -M .6 * PARKER PEAK 9400 1.6 1.0 160* 2.3 .9 256 SYLVAN LAKE 8420 .0 .8 0* 2.1 1.0 210 THUMB DIVIDE 7980 .0 .1 0* 1.9 .7 271 TWO OCEAN PLATEAU 9240 2.1 .9 233* 2.7 1.1 245 WHISKEY CREEK 6800 .0 .1 0* 2.1 .8 262 WHITE MILL 8700 1.9 .6 317* 2.3 1.0 230 WOLVERINE 7650 .0 .1 0* 1.4 .7 200 ----- ----- Basin wide percent of average 193* 233 WIND RIVER BURROUGHS CREEK 8750 .0 .3 0* 1.4 .6 233 COLD SPRINGS 9630 .0 .2 0* 1.4 .7 200 DEER PARK 9700 .6 .7 86* 2.0 .9 222 HOBBS PARK 10100 .6 .6 100* 2.2 .8 275 LITTLE WARM 9370 .0 .4 0* 1.2 .6 200 SOUTH PASS 9040 .0 .3 0* 1.3 .8 162 ST. LAWRENCE ALT 8620 .0 .1 0* 1.0 .6 167 TOGWOTEE PASS 9580 1.5 .8 188* 2.4 1.0 240 TOWNSEND CREEK 8700 .0 .2 0* 1.6 .8 200 ----- ----- Basin wide percent of average 75* 213 BIGHORN BASIN BALD MTN. 9380 1.3 1.3 100* 2.1 .9 233 BEAR TRAP MEADOW 8200 .0 .2 0* .7 .6 117 BLACKWATER 9780 1.7 1.3 131* 2.2 1.0 220 BONE SPRINGS DIV 9350 .6 1.1 55* 2.0 .9 222 EVENING STAR 9200 1.7 1.0 170* 2.5 1.0 250 GRAVE SPRINGS 8550 .0 .2 0* 1.2 .8 150 KIRWIN 9550 1.7 .7 243* 2.7 .7 386 MARQUETTE 8760 .0 .8 0* 1.3 .9 144 MIDDLE POWDER 7760 .1 .5 20* .9 1.0 90 OWL CREEK 8975 .0 .3 0* 1.5 .4 375 POWDER RIVER PASS 9480 .0 .5 0* 1.7 .7 243 SHELL CREEK 9580 1.5 1.4 107* 2.5 .7 357 SYLVAN LAKE 8420 .0 .8 0* 2.1 1.0 210 SYLVAN ROAD 7120 .0 .1 0* 2.1 .8 262 TIMBER CREEK 7950 .6 .1 600* 2.0 .6 333 YOUNTS PEAK 8350 .8 .5 160* 1.9 .7 271 ----- ----- Basin wide percent of average 93* 231 SHOSHONE RIVER BLACKWATER 9780 1.7 1.3 131* 2.2 1.0 220 EVENING STAR 9200 1.7 1.0 170* 2.5 1.0 250 KIRWIN 9550 1.7 .7 243* 2.7 .7 386 MARQUETTE 8760 .0 .8 0* 1.3 .9 144 SYLVAN LAKE 8420 .0 .8 0* 2.1 1.0 210 SYLVAN ROAD 7120 .0 .1 0* 2.1 .8 262 YOUNTS PEAK 8350 .8 .5 160* 1.9 .7 271 ----- ----- Basin wide percent of average 113* 243 POWDER-TONGUE BEAR TRAP MEADOW 8200 .0 .2 0* .7 .6 117 BIG GOOSE 7990 .0 .2 0* 1.2 .8 150 BONE SPRINGS DIV 9350 .6 1.1 55* 2.0 .9 222 BURGESS JUNCTION 7880 .0 .5 0* 1.2 .8 150 CLOUD PEAK RESERVOIR 9860 .0 .3 0* 1.7 1.0 170 DOME LAKE 8880 .0 .6 0* 1.9 .9 211 GRAVE SPRINGS 8550 .0 .2 0* 1.2 .8 150 HANSEN SAWMILL 8360 .2 .2 100* 1.2 .7 171 MIDDLE POWDER 7760 .1 .5 20* .9 1.0 90 POWDER RIVER PASS 9480 .0 .5 0* 1.7 .7 243 SUCKER CREEK 8880 .0 .4 0* 1.2 .9 133 TIE CREEK 6870 .0 .0 100* .9 .9 100 ----- ----- Basin wide percent of average 19* 158 BELLE FOURCHE BLIND PARK 6890 .0 .0 100* .7 1.0 70 COLE CANYON 5910 .0 .0 100* .6 -M * NORTH RAPID CREEK 6130 .0 .1 0* .7 .9 78 ----- ----- Basin wide percent of average 0* 74 UPPER N. PLATTE RIVER COLUMBINE 9160 .0 .0 100* 1.4 .9 156 DIVIDE PEAK 8860 -M .6 * -M 1.0 * ELK RIVER 8700 .0 .1 0* 1.0 .8 125 JOE WRIGHT 10120 .2 .6 33* 1.5 1.2 125 NORTH FRENCH CREEK 10130 .2 1.1 18* 1.3 1.2 108 OLD BATTLE 9920 .5 .9 56* 2.0 1.3 154 SAGE CREEK BASIN 7850 .0 .2 0* .9 .6 150 SOUTH BRUSH CREEK 8440 .1 .2 50* 1.0 1.0 100 TOWER 10500 .0 .8 0* 2.6 1.5 173 WEBBER SPRINGS 9250 .0 .4 0* 1.3 1.1 118 WILLOW CREEK PASS 9540 .1 .2 50* .6 .7 86 ----- ----- Basin wide percent of average 24* 132 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 .0 .8 0* .7 .9 78 CASPER MTN. 7850 .0 .5 0* 1.1 .9 122 DEADMAN HILL 10220 .5 .8 62* .6 .9 67 DEER PARK 9700 .6 .7 86* 2.0 .9 222 LAPRELE CREEK 8375 .0 .2 0* .7 .7 100 RENO HILL 8500 .1 .5 20* .9 .9 100 ROACH 9700 .0 .2 0* .9 .9 100 SAND LAKE 10050 .6 1.1 55* 1.1 1.1 100 SOUTH PASS 9040 .0 .3 0* 1.3 .8 162 WINDY PEAK 7900 .0 .1 0* .3 .6 50 ----- ----- Basin wide percent of average 35* 112 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100* .8 .7 114 DIVIDE PEAK 8860 -M .6 * -M 1.0 * OLD BATTLE 9920 .5 .9 56* 2.0 1.3 154 SANDSTONE RS 8150 .0 .1 0* .8 .9 89 WHISKEY PARK 8950 .0 .4 0* 1.2 1.1 109 ----- ----- Basin wide percent of average 36* 120 UPPER GREEN RIVER BIG SANDY OPENING 9080 .1 .3 33* 1.1 .7 157 BLIND BULL SUM 8900 .1 .3 33* .9 .8 112 EAST RIM DIVIDE 7930 .0 .0 100* 1.1 .5 220 ELKHART PARK G.S. 9400 .0 .2 0* 1.2 .7 171 GROS VENTRE SUMMIT 8750 .7 .5 140* 1.7 .7 243 KENDALL R.S. 7740 .0 .0 100* 1.0 .6 167 LOOMIS PARK 8240 .0 .2 0* 1.0 .7 143 NEW FORK LAKE 8340 .0 .0 100* 1.1 .6 183 SNIDER BASIN 8060 .2 .1 200* .4 .6 67 SPRING CREEK DIVIDE 9000 .1 .2 50* .9 1.0 90 TRIPLE PEAK 8500 .0 .2 0* .9 .8 112 ----- ----- Basin wide percent of average 60* 147 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100* .8 .5 160 HEWINTA 9500 .0 .3 0* 2.7 .9 300 HICKERSON PARK 9100 .1 .0 * 2.3 .6 383 HOLE-IN-ROCK 9150 .0 .0 100* 2.3 .6 383 INDIAN CREEK 9425 .2 .3 67* 1.1 1.0 110 KELLEY R.S. 8180 .2 .2 100* 1.4 .8 175 STEEL CREEK PARK 10100 1.7 .7 243* 2.8 .9 311 ----- ----- Basin wide percent of average 140* 253 UPPER BEAR RIVER BUG LAKE 7950 .1 .4 25* .5 .9 56 HAYDEN FORK 9100 .2 .3 67* 1.4 .9 156 KELLEY R.S. 8180 .2 .2 100* 1.4 .8 175 LILY LAKE 9050 -M .3 * 2.0 .9 222 MONTE CRISTO 8960 .0 .6 0* 1.3 1.0 130 SALT RIVER SUMMIT 7600 .1 .0 * 1.1 .7 157 TRIAL LAKE 9960 .0 .7 0* .8 1.0 80 ----- ----- Basin wide percent of average 23* 137 ----------------------------------------------------------------------------- -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.