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 WEDNESDAY: OCTOBER 17 , 2007 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .2 .2 100* 1.7 1.1 155 COTTONWOOD CREEK 7600 .1 .2 50* 2.0 1.6 125 GRANITE CREEK 6770 .1 .2 50* 1.4 .9 156 GRASSY LAKE 7265 .1 .4 25* 1.7 1.8 94 GROS VENTRE SUMMIT 8750 .7 .7 100* 1.8 1.0 180 LEWIS LAKE DIVIDE 7850 .0 .2 0* 1.1 1.7 65 PHILLIPS BENCH 8200 .0 .4 0* 1.4 1.3 108 SALT RIVER SUMMIT 7600 .3 .0 * 1.4 1.0 140 SNAKE RIVER STATION 6920 .1 .1 100* 1.7 1.2 142 SPRING CREEK DIVIDE 9000 .1 .5 20* 1.2 1.4 86 THUMB DIVIDE 7980 .1 .2 50* 2.0 1.1 182 TOGWOTEE PASS 9580 1.7 1.2 142* 2.5 1.5 167 TWO OCEAN PLATEAU 9240 2.2 1.4 157* 2.9 1.7 171 WILLOW CREEK 8450 .2 .6 33* 2.1 2.0 105 ----- ----- Basin wide percent of average 89* 129 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 2.1 1.5 140* 2.0 1.1 182 BLACK BEAR 8170 1.0 1.0 100* 2.4 1.9 126 CANYON 8090 .0 .3 0* 2.0 1.0 200 FISHER CREEK 9100 2.8 1.2 233* 3.2 1.8 178 MADISON PLATEAU 7750 .3 .6 50* 2.3 1.3 177 NORTHEAST ENTRANCE 7350 -M .1 * -M .8 * PARKER PEAK 9400 1.8 1.4 129* 2.7 1.2 225 SYLVAN LAKE 8420 .2 1.0 20* 2.3 1.4 164 THUMB DIVIDE 7980 .1 .2 50* 2.0 1.1 182 TWO OCEAN PLATEAU 9240 2.2 1.4 157* 2.9 1.7 171 WHISKEY CREEK 6800 .3 .2 150* 2.4 1.2 200 WHITE MILL 8700 2.0 .9 222* 2.4 1.4 171 WOLVERINE 7650 .1 .1 100* 1.6 1.0 160 ----- ----- Basin wide percent of average 132* 175 WIND RIVER BURROUGHS CREEK 8750 .0 .4 0* 1.7 .9 189 COLD SPRINGS 9630 .0 .3 0* 1.7 1.0 170 DEER PARK 9700 .8 1.0 80* 2.4 1.3 185 HOBBS PARK 10100 .9 .9 100* 2.6 1.1 236 LITTLE WARM 9370 .0 .5 0* 1.5 .9 167 SOUTH PASS 9040 .0 .5 0* 1.6 1.1 145 ST. LAWRENCE ALT 8620 .0 .2 0* 1.1 .9 122 TOGWOTEE PASS 9580 1.7 1.2 142* 2.5 1.5 167 TOWNSEND CREEK 8700 .1 .4 25* 2.0 1.1 182 ----- ----- Basin wide percent of average 65* 174 BIGHORN BASIN BALD MTN. 9380 1.4 1.7 82* 2.2 1.3 169 BEAR TRAP MEADOW 8200 .0 .2 0* .9 .9 100 BLACKWATER 9780 2.0 1.7 118* 2.3 1.4 164 BONE SPRINGS DIV 9350 .0 1.5 0* 2.0 1.3 154 EVENING STAR 9200 1.7 1.4 121* 2.6 1.5 173 GRAVE SPRINGS 8550 .0 .3 0* 1.2 1.1 109 KIRWIN 9550 1.9 .9 211* 2.8 1.0 280 MARQUETTE 8760 .0 1.0 0* 1.6 1.2 133 MIDDLE POWDER 7760 .0 .7 0* .9 1.4 64 OWL CREEK 8975 .0 .4 0* 1.6 .6 267 POWDER RIVER PASS 9480 .0 .6 0* 1.8 1.0 180 SHELL CREEK 9580 1.8 1.7 106 2.5 1.1 227 SYLVAN LAKE 8420 .2 1.0 20* 2.3 1.4 164 SYLVAN ROAD 7120 .0 .1 0* 2.0 1.1 182 TIMBER CREEK 7950 .1 .2 50* 2.0 .9 222 YOUNTS PEAK 8350 1.0 .7 143* 2.0 1.0 200 ----- ----- Basin wide percent of average 72* 169 SHOSHONE RIVER BLACKWATER 9780 2.0 1.7 118* 2.3 1.4 164 EVENING STAR 9200 1.7 1.4 121* 2.6 1.5 173 KIRWIN 9550 1.9 .9 211* 2.8 1.0 280 MARQUETTE 8760 .0 1.0 0* 1.6 1.2 133 SYLVAN LAKE 8420 .2 1.0 20* 2.3 1.4 164 SYLVAN ROAD 7120 .0 .1 0* 2.0 1.1 182 YOUNTS PEAK 8350 1.0 .7 143* 2.0 1.0 200 ----- ----- Basin wide percent of average 100* 181 POWDER-TONGUE BEAR TRAP MEADOW 8200 .0 .2 0* .9 .9 100 BIG GOOSE 7990 .0 .4 0* 1.8 1.1 164 BONE SPRINGS DIV 9350 .0 1.5 0* 2.0 1.3 154 BURGESS JUNCTION 7880 .0 .7 0* 1.2 1.2 100 CLOUD PEAK RESERVOIR 9860 .9 .5 180* 2.7 1.4 193 DOME LAKE 8880 .3 .8 37* 2.3 1.3 177 GRAVE SPRINGS 8550 .0 .3 0* 1.2 1.1 109 HANSEN SAWMILL 8360 .0 .3 0* 1.7 1.0 170 MIDDLE POWDER 7760 .0 .7 0* .9 1.4 64 POWDER RIVER PASS 9480 .0 .6 0* 1.8 1.0 180 SUCKER CREEK 8880 .1 .6 17* 1.3 1.3 100 TIE CREEK 6870 .0 .1 0* 1.2 1.3 92 ----- ----- Basin wide percent of average 19* 133 BELLE FOURCHE BLIND PARK 6890 .0 .1 0* .7 1.4 50 COLE CANYON 5910 .0 .1 0* .6 -M * NORTH RAPID CREEK 6130 .0 .1 0* .7 1.3 54 ----- ----- Basin wide percent of average 0* 52 UPPER N. PLATTE RIVER COLUMBINE 9160 .0 .1 0* 2.0 1.3 154 DIVIDE PEAK 8860 -M .8 * -M 1.4 * ELK RIVER 8700 .0 .2 0* 1.7 1.2 142 JOE WRIGHT 10120 1.2 1.0 120* 3.3 1.8 183 NORTH FRENCH CREEK 10130 .2 1.6 12* 1.7 1.8 94 OLD BATTLE 9920 .8 1.3 62* 2.4 1.9 126 SAGE CREEK BASIN 7850 .0 .4 0* 1.4 .8 175 SOUTH BRUSH CREEK 8440 .1 .3 33* 1.5 1.4 107 TOWER 10500 .2 1.3 15* 2.3 2.1 110 WEBBER SPRINGS 9250 .1 .7 14* 1.9 1.7 112 WILLOW CREEK PASS 9540 1.0 .4 250* 1.7 1.1 155 ----- ----- Basin wide percent of average 49* 132 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 .1 1.1 9* 1.3 1.3 100 CASPER MTN. 7850 .1 .7 14* 1.5 1.3 115 DEADMAN HILL 10220 1.6 1.1 145* 2.1 1.3 162 DEER PARK 9700 .8 1.0 80* 2.4 1.3 185 LAPRELE CREEK 8375 .0 .4 0* .8 1.0 80 RENO HILL 8500 .1 .8 12* 1.3 1.3 100 ROACH 9700 1.0 .4 250* 2.1 1.2 175 SAND LAKE 10050 1.6 1.5 107* 2.3 1.7 135 SOUTH PASS 9040 .0 .5 0* 1.6 1.1 145 WINDY PEAK 7900 .3 .2 150* .9 .9 100 ----- ----- Basin wide percent of average 73* 131 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 -M .1 * .9 1.0 90 DIVIDE PEAK 8860 -M .8 * -M 1.4 * OLD BATTLE 9920 .8 1.3 62* 2.4 1.9 126 SANDSTONE RS 8150 .0 .2 0* .9 1.2 75 WHISKEY PARK 8950 .0 .7 0* 1.6 1.5 107 ----- ----- Basin wide percent of average 36* 104 UPPER GREEN RIVER BIG SANDY OPENING 9080 .3 .5 60* 1.4 1.0 140 BLIND BULL SUM 8900 .1 .6 17* 1.1 1.2 92 EAST RIM DIVIDE 7930 .0 .1 0* 1.1 .7 157 ELKHART PARK G.S. 9400 .0 .3 0* 1.3 1.0 130 GROS VENTRE SUMMIT 8750 .7 .7 100* 1.8 1.0 180 KENDALL R.S. 7740 .1 .1 100* 1.1 .8 138 LOOMIS PARK 8240 .0 .3 0* 1.1 1.0 110 NEW FORK LAKE 8340 .0 .1 0* 1.2 .8 150 SNIDER BASIN 8060 .1 .2 50* .7 .9 78 SPRING CREEK DIVIDE 9000 .1 .5 20* 1.2 1.4 86 TRIPLE PEAK 8500 .2 .3 67* 1.1 1.2 92 ----- ----- Basin wide percent of average 43* 119 LOWER GREEN RIVER HAMS FORK 7840 .0 .1 0* .9 .8 112 HEWINTA 9500 .0 .5 0* 3.5 1.3 269 HICKERSON PARK 9100 -M .1 * -M .9 * HOLE-IN-ROCK 9150 .0 .1 0* 2.9 .9 322 INDIAN CREEK 9425 .3 .5 60* 1.3 1.4 93 KELLEY R.S. 8180 .3 .3 100* 1.8 1.1 164 STEEL CREEK PARK 10100 2.4 .9 267* 3.4 1.2 283 ----- ----- Basin wide percent of average 125* 206 UPPER BEAR RIVER BUG LAKE 7950 .2 .6 33* .6 1.2 50 HAYDEN FORK 9100 .4 .5 80* 1.8 1.3 138 KELLEY R.S. 8180 .3 .3 100* 1.8 1.1 164 LILY LAKE 9050 .2 .5 40* 2.4 1.3 185 MONTE CRISTO 8960 .4 .8 50* 1.9 1.5 127 SALT RIVER SUMMIT 7600 .3 .0 * 1.4 1.0 140 TRIAL LAKE 9960 .3 .9 33* 1.2 1.5 80 ----- ----- Basin wide percent of average 50* 125 ----------------------------------------------------------------------------- -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.