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 16 , 2008 ----------------------------------------------------------------------------- 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 1.5 .9 167 COTTONWOOD CREEK 7670 .2 .1 200 1.3 1.3 100 GRAND TARGHEE 9260 1.0 -M * 2.9 -M * GRANITE CREEK 6770 .5 .1 500 1.5 .8 188 GRASSY LAKE 7265 .9 .3 300 2.1 1.5 140 GROS VENTRE SUMMIT 8750 1.4 .6 233 1.8 .9 200 GUNSIGHT PASS 9820 .7 -M * 1.0 -M * LEWIS LAKE DIVIDE 7850 .6 .1 600 2.2 1.3 169 PHILLIPS BENCH 8200 .8 .3 267 1.4 1.0 140 SALT RIVER SUMMIT 7760 .0 .0 100 1.0 .9 111 SNAKE RIVER STATION 6920 .1 .0 1.3 1.1 118 SPRING CREEK DIVIDE 9000 .7 .4 175 1.1 1.0 110 THUMB DIVIDE 7980 .6 .2 300 2.2 1.0 220 TOGWOTEE PASS 9580 1.4 1.1 127 1.9 1.3 146 TWO OCEAN PLATEAU 9240 1.3 1.3 100 1.5 1.4 107 WILLOW CREEK 8380 .5 .5 100 1.9 1.7 112 ----- ----- Basin wide percent of average 175 141 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 1.2 1.4 86 1.3 .9 144 BLACK BEAR 8170 1.1 .9 122 3.2 1.4 229 CANYON 7870 .0 .2 0 .7 .8 87 FISHER CREEK 9100 1.0 1.0 100 1.8 1.4 129 MADISON PLATEAU 7750 .7 .5 140 1.7 1.2 142 NORTHEAST ENTRANCE 7350 .0 .1 0 1.0 .8 125 PARKER PEAK 9400 1.5 1.4 107 1.4 1.2 117 SYLVAN LAKE 8420 .0 .9 0 1.5 1.2 125 THUMB DIVIDE 7980 .6 .2 300 2.2 1.0 220 TWO OCEAN PLATEAU 9240 1.3 1.3 100 1.5 1.4 107 WHISKEY CREEK 6800 .5 .1 500 1.3 .9 144 WHITE MILL 8700 1.0 .8 125 1.3 1.2 108 WOLVERINE 7650 .8 .1 800 1.1 .9 122 ----- ----- Basin wide percent of average 109 140 WIND RIVER BURROUGHS CREEK 8750 1.7 .3 567 2.0 .8 250 COLD SPRINGS 9630 1.7 .3 567 2.1 .9 233 DEER PARK 9700 1.3 .8 162 2.4 1.0 240 HOBBS PARK 10100 2.2 .8 275 2.4 1.0 240 LITTLE WARM 9370 1.3 .5 260 1.6 .8 200 SOUTH PASS 9040 1.5 .4 375 2.8 .9 311 ST. LAWRENCE ALT 8620 1.9 .2 950 2.3 .8 287 TOGWOTEE PASS 9580 1.4 1.1 127 1.9 1.3 146 TOWNSEND CREEK 8700 2.0 .3 667 2.7 1.1 245 ----- ----- Basin wide percent of average 319 235 BIGHORN BASIN BALD MTN. 9380 1.8 1.6 112 2.3 1.2 192 BEAR TRAP MEADOW 8200 .9 .2 450 1.7 .9 189 BLACKWATER 9780 1.4 1.7 82 1.7 1.3 131 BONE SPRINGS DIV 9350 1.4 1.3 108 1.8 1.3 138 EVENING STAR 9200 1.3 1.3 100 1.9 1.3 146 GRAVE SPRINGS 8550 1.1 .2 550 1.7 1.2 142 KIRWIN 9550 1.4 .9 156 1.4 .8 175 MARQUETTE 8760 1.8 1.0 180 1.9 1.1 173 MIDDLE POWDER 7760 1.2 .6 200 1.8 1.3 138 OWL CREEK 8975 1.8 .4 450 1.7 .6 283 POWDER RIVER PASS 9480 .9 .5 180 1.7 1.0 170 SHELL CREEK 9580 1.9 1.6 119 2.4 1.0 240 SYLVAN LAKE 8420 .0 .9 0 1.5 1.2 125 SYLVAN ROAD 7120 .0 .1 0 1.1 .8 138 TIMBER CREEK 7950 1.5 .3 500 2.1 .8 262 YOUNTS PEAK 8350 1.0 .6 167 1.3 .9 144 ----- ----- Basin wide percent of average 147 168 SHOSHONE RIVER BLACKWATER 9780 1.4 1.7 82 1.7 1.3 131 EVENING STAR 9200 1.3 1.3 100 1.9 1.3 146 KIRWIN 9550 1.4 .9 156 1.4 .8 175 MARQUETTE 8760 1.8 1.0 180 1.9 1.1 173 SYLVAN LAKE 8420 .0 .9 0 1.5 1.2 125 SYLVAN ROAD 7120 .0 .1 0 1.1 .8 138 YOUNTS PEAK 8350 1.0 .6 167 1.3 .9 144 ----- ----- Basin wide percent of average 106 146 POWDER-TONGUE BEAR TRAP MEADOW 8200 .9 .2 450 1.7 .9 189 BIG GOOSE 7990 .9 .4 225 1.6 1.1 145 BONE SPRINGS DIV 9350 1.4 1.3 108 1.8 1.3 138 BURGESS JUNCTION 7880 1.0 .7 143 1.8 1.1 164 CLOUD PEAK RESERVOIR 9860 1.3 .6 217 1.7 1.4 121 DOME LAKE 8880 .9 .8 112 1.6 1.3 123 GRAVE SPRINGS 8550 1.1 .2 550 1.7 1.2 142 HANSEN SAWMILL 8360 1.0 .3 333 1.3 .9 144 MIDDLE POWDER 7760 1.2 .6 200 1.8 1.3 138 POWDER RIVER PASS 9480 .9 .5 180 1.7 1.0 170 SUCKER CREEK 8880 1.2 .6 200 2.1 1.2 175 TIE CREEK 6870 1.8 .1 1800 2.8 1.4 200 ----- ----- Basin wide percent of average 216 153 BELLE FOURCHE BLIND PARK 6890 .7 .0 1.1 1.2 92 COLE CANYON 5910 1.3 .4 325 2.5 .9 278 NORTH RAPID CREEK 6130 .0 .2 0 1.5 1.2 125 ----- ----- Basin wide percent of average 217 155 UPPER N. PLATTE RIVER COLUMBINE 9160 .0 .0 100 .2 1.0 20 DIVIDE PEAK 8880 .4 .8 50 1.9 1.3 146 ELK RIVER 8700 .1 .2 50 1.0 1.0 100 JOE WRIGHT 10120 .4 .9 44 .8 1.6 50 NORTH FRENCH CREEK 10130 .7 1.5 47 1.2 1.4 86 OLD BATTLE 10000 .2 1.2 17 1.4 1.5 93 SAGE CREEK BASIN 7850 .0 .4 0 .8 .7 114 SOUTH BRUSH CREEK 8440 .0 .2 0 .7 1.2 58 TOWER 10500 .1 1.1 9 1.4 1.6 87 WEBBER SPRINGS 9250 .1 .6 17 .9 1.4 64 WILLOW CREEK PASS 9540 .8 .4 200 .6 .9 67 ----- ----- Basin wide percent of average 38 80 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .5 .9 56 .5 1.1 45 CASPER MTN. 7900 .6 .7 86 1.6 1.2 133 DEADMAN HILL 10220 1.9 1.0 190 .6 1.2 50 DEER PARK 9700 1.3 .8 162 2.4 1.0 240 LAPRELE CREEK 8375 .1 .3 33 .6 .8 75 RENO HILL 8400 1.1 .8 138 1.2 1.1 109 ROACH 9700 .6 .3 200 .7 1.1 64 SAND LAKE 10050 1.0 1.4 71 .8 1.4 57 SOUTH PASS 9040 1.5 .4 375 2.8 .9 311 WINDY PEAK 7900 .6 .1 600 .4 .8 50 ----- ----- Basin wide percent of average 137 109 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100 .6 .8 75 DIVIDE PEAK 8880 .4 .8 50 1.9 1.3 146 OLD BATTLE 10000 .2 1.2 17 1.4 1.5 93 SANDSTONE RS 8150 .0 .1 0 .6 1.0 60 WHISKEY PARK 8950 .1 .6 17 1.0 1.4 71 ----- ----- Basin wide percent of average 26 92 UPPER GREEN RIVER BIG SANDY OPENING 9080 .7 .4 175 1.3 .8 162 BLIND BULL SUM 8650 1.5 .5 300 2.0 .9 222 EAST RIM DIVIDE 7930 .8 .1 800 1.8 .6 300 ELKHART PARK G.S. 9400 .8 .3 267 1.7 .9 189 GROS VENTRE SUMMIT 8750 1.4 .6 233 1.8 .9 200 GUNSIGHT PASS 9820 .7 -M * 1.0 -M * KENDALL R.S. 7740 .8 .0 1.4 .7 200 LOOMIS PARK 8240 1.0 .3 333 2.0 .8 250 NEW FORK LAKE 8340 .5 .0 1.3 .7 186 SNIDER BASIN 8060 .8 .2 400 1.1 .6 183 SPRING CREEK DIVIDE 9000 .7 .4 175 1.1 1.0 110 TRIPLE PEAK 8500 1.2 .3 400 1.7 1.0 170 ----- ----- Basin wide percent of average 287 193 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100 1.2 .6 200 HEWINTA 9519 .0 .4 0 1.2 1.1 109 HICKERSON PARK 9145 .0 .0 100 1.2 .8 150 HOLE-IN-ROCK 9150 .5 .0 1.7 .8 212 INDIAN CREEK 9425 1.4 .5 280 1.6 1.1 145 KELLEY R.S. 8180 .6 .2 300 1.3 .9 144 STEEL CREEK PARK 10200 .5 .8 62 1.6 1.1 145 ----- ----- Basin wide percent of average 132 153 UPPER BEAR RIVER BUG LAKE 7950 .4 .5 80 1.3 1.1 118 HAYDEN FORK 9212 .1 .4 25 1.3 1.1 118 KELLEY R.S. 8180 .6 .2 300 1.3 .9 144 LILY LAKE 9156 .0 .5 0 1.7 1.1 155 MONTE CRISTO 8960 .4 .7 57 1.7 1.3 131 SALT RIVER SUMMIT 7760 .0 .0 100 1.0 .9 111 TRIAL LAKE 9992 .2 .9 22 1.3 1.3 100 ----- ----- Basin wide percent of average 53 125 ----------------------------------------------------------------------------- -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 1961-90. 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.