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 15 , 2008 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .3 .1 300 1.4 .8 175 COTTONWOOD CREEK 7670 .3 .1 300 1.4 1.2 117 GRAND TARGHEE 9260 1.0 -M * 2.9 -M * GRANITE CREEK 6770 .6 .1 600 1.5 .7 214 GRASSY LAKE 7265 .9 .3 300 2.0 1.4 143 GROS VENTRE SUMMIT 8750 1.3 .6 217 1.8 .8 225 GUNSIGHT PASS 9820 .7 -M * 1.0 -M * LEWIS LAKE DIVIDE 7850 .6 .1 600 1.9 1.2 158 PHILLIPS BENCH 8200 .9 .2 450 1.5 1.0 150 SALT RIVER SUMMIT 7760 .0 .0 100 1.0 .8 125 SNAKE RIVER STATION 6920 .1 .0 1.3 1.0 130 SPRING CREEK DIVIDE 9000 .8 .3 267 1.1 .9 122 THUMB DIVIDE 7980 .7 .1 700 2.1 .9 233 TOGWOTEE PASS 9580 1.3 1.0 130 1.8 1.2 150 TWO OCEAN PLATEAU 9240 1.2 1.2 100 1.3 1.3 100 WILLOW CREEK 8380 .7 .4 175 1.9 1.6 119 ----- ----- Basin wide percent of average 213 149 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 1.0 1.3 77 1.1 .9 122 BLACK BEAR 8170 1.1 .8 138 3.1 1.3 238 CANYON 7870 .5 .2 250 .7 .7 100 FISHER CREEK 9100 .9 1.0 90 1.7 1.3 131 MADISON PLATEAU 7750 .7 .4 175 1.7 1.1 155 NORTHEAST ENTRANCE 7350 .0 .1 0 .8 .7 114 PARKER PEAK 9400 1.4 1.2 117 1.3 1.1 118 SYLVAN LAKE 8420 .5 .9 56 1.4 1.1 127 THUMB DIVIDE 7980 .7 .1 700 2.1 .9 233 TWO OCEAN PLATEAU 9240 1.2 1.2 100 1.3 1.3 100 WHISKEY CREEK 6800 .5 .1 500 1.2 .9 133 WHITE MILL 8700 .8 .7 114 1.1 1.1 100 WOLVERINE 7650 1.1 .1 1100 1.1 .9 122 ----- ----- Basin wide percent of average 128 140 WIND RIVER BURROUGHS CREEK 8750 1.7 .3 567 2.0 .7 286 COLD SPRINGS 9630 1.7 .2 850 2.1 .8 262 DEER PARK 9700 1.3 .8 162 2.4 1.0 240 HOBBS PARK 10100 2.2 .7 314 2.4 .9 267 LITTLE WARM 9370 1.3 .4 325 1.6 .8 200 SOUTH PASS 9040 1.5 .4 375 2.8 .8 350 ST. LAWRENCE ALT 8620 1.9 .1 1900 2.2 .8 275 TOGWOTEE PASS 9580 1.3 1.0 130 1.8 1.2 150 TOWNSEND CREEK 8700 2.0 .3 667 2.7 1.0 270 ----- ----- Basin wide percent of average 355 250 BIGHORN BASIN BALD MTN. 9380 1.7 1.5 113 2.3 1.1 209 BEAR TRAP MEADOW 8200 .9 .2 450 1.7 .8 212 BLACKWATER 9780 1.2 1.5 80 1.5 1.2 125 BONE SPRINGS DIV 9350 1.4 1.3 108 1.9 1.2 158 EVENING STAR 9200 1.2 1.2 100 1.8 1.2 150 GRAVE SPRINGS 8550 1.1 .2 550 1.7 1.1 155 KIRWIN 9550 1.3 .8 162 1.4 .8 175 MARQUETTE 8760 1.8 .9 200 1.9 1.0 190 MIDDLE POWDER 7760 1.2 .6 200 1.8 1.2 150 OWL CREEK 8975 1.7 .3 567 1.7 .5 340 POWDER RIVER PASS 9480 .9 .5 180 1.7 .9 189 SHELL CREEK 9580 1.9 1.6 119 2.4 .9 267 SYLVAN LAKE 8420 .5 .9 56 1.4 1.1 127 SYLVAN ROAD 7120 .0 .1 0 1.0 .7 143 TIMBER CREEK 7950 1.5 .1 1500 2.1 .7 300 YOUNTS PEAK 8350 .9 .6 150 1.2 .9 133 ----- ----- Basin wide percent of average 156 180 SHOSHONE RIVER BLACKWATER 9780 1.2 1.5 80 1.5 1.2 125 EVENING STAR 9200 1.2 1.2 100 1.8 1.2 150 KIRWIN 9550 1.3 .8 162 1.4 .8 175 MARQUETTE 8760 1.8 .9 200 1.9 1.0 190 SYLVAN LAKE 8420 .5 .9 56 1.4 1.1 127 SYLVAN ROAD 7120 .0 .1 0 1.0 .7 143 YOUNTS PEAK 8350 .9 .6 150 1.2 .9 133 ----- ----- Basin wide percent of average 115 148 POWDER-TONGUE BEAR TRAP MEADOW 8200 .9 .2 450 1.7 .8 212 BIG GOOSE 7990 .9 .3 300 1.6 1.1 145 BONE SPRINGS DIV 9350 1.4 1.3 108 1.9 1.2 158 BURGESS JUNCTION 7880 1.1 .6 183 1.8 1.1 164 CLOUD PEAK RESERVOIR 9860 1.3 .4 325 1.7 1.3 131 DOME LAKE 8880 1.0 .7 143 1.6 1.2 133 GRAVE SPRINGS 8550 1.1 .2 550 1.7 1.1 155 HANSEN SAWMILL 8360 1.1 .2 550 1.2 .8 150 MIDDLE POWDER 7760 1.2 .6 200 1.8 1.2 150 POWDER RIVER PASS 9480 .9 .5 180 1.7 .9 189 SUCKER CREEK 8880 1.3 .5 260 2.1 1.1 191 TIE CREEK 6870 1.8 .0 2.8 1.3 215 ----- ----- Basin wide percent of average 222 165 BELLE FOURCHE BLIND PARK 6890 .8 .0 1.1 1.1 100 COLE CANYON 5910 1.4 .2 700 2.5 .9 278 NORTH RAPID CREEK 6130 .6 .1 600 1.5 1.2 125 ----- ----- Basin wide percent of average 667 159 UPPER N. PLATTE RIVER COLUMBINE 9160 .0 .0 100 .2 .9 22 DIVIDE PEAK 8880 .3 .7 43 1.9 1.2 158 ELK RIVER 8700 .0 .1 0 1.0 .9 111 JOE WRIGHT 10120 1.2 .8 150 .8 1.5 53 NORTH FRENCH CREEK 10130 .6 1.4 43 1.2 1.3 92 OLD BATTLE 10000 .2 1.1 18 1.3 1.4 93 SAGE CREEK BASIN 7850 .0 .3 0 .8 .7 114 SOUTH BRUSH CREEK 8440 .0 .2 0 .7 1.1 64 TOWER 10500 .0 1.0 0 1.2 1.5 80 WEBBER SPRINGS 9250 .0 .5 0 .8 1.3 62 WILLOW CREEK PASS 9540 .5 .3 167 .6 .9 67 ----- ----- Basin wide percent of average 44 83 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .4 .9 44 .4 1.0 40 CASPER MTN. 7900 .6 .6 100 1.5 1.1 136 DEADMAN HILL 10220 1.1 .9 122 .5 1.1 45 DEER PARK 9700 1.3 .8 162 2.4 1.0 240 LAPRELE CREEK 8375 .1 .3 33 .6 .8 75 RENO HILL 8400 1.0 .7 143 1.1 1.1 100 ROACH 9700 .5 .3 167 .6 1.0 60 SAND LAKE 10050 .8 1.3 62 .6 1.3 46 SOUTH PASS 9040 1.5 .4 375 2.8 .8 350 WINDY PEAK 7900 .4 .1 400 .4 .8 50 ----- ----- Basin wide percent of average 122 109 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100 .6 .7 86 DIVIDE PEAK 8880 .3 .7 43 1.9 1.2 158 OLD BATTLE 10000 .2 1.1 18 1.3 1.4 93 SANDSTONE RS 8150 .0 .1 0 .6 .9 67 WHISKEY PARK 8950 .1 .5 20 1.0 1.3 77 ----- ----- Basin wide percent of average 25 98 UPPER GREEN RIVER BIG SANDY OPENING 9080 .7 .4 175 1.3 .8 162 BLIND BULL SUM 8650 1.5 .4 375 2.0 .9 222 EAST RIM DIVIDE 7930 .9 .0 1.8 .6 300 ELKHART PARK G.S. 9400 .8 .2 400 1.7 .9 189 GROS VENTRE SUMMIT 8750 1.3 .6 217 1.8 .8 225 GUNSIGHT PASS 9820 .7 -M * 1.0 -M * KENDALL R.S. 7740 .8 .0 1.4 .7 200 LOOMIS PARK 8240 1.0 .2 500 2.0 .8 250 NEW FORK LAKE 8340 .6 .0 1.3 .7 186 SNIDER BASIN 8060 .9 .1 900 1.0 .6 167 SPRING CREEK DIVIDE 9000 .8 .3 267 1.1 .9 122 TRIPLE PEAK 8500 1.3 .2 650 1.8 .9 200 ----- ----- Basin wide percent of average 346 200 LOWER GREEN RIVER HAMS FORK 7840 .3 .0 1.1 .6 183 HEWINTA 9519 -M .4 * 1.2 1.0 120 HICKERSON PARK 9145 -M .0 * 1.1 .8 138 HOLE-IN-ROCK 9150 .6 .0 1.7 .8 212 INDIAN CREEK 9425 1.4 .4 350 1.5 1.0 150 KELLEY R.S. 8180 .5 .2 250 1.2 .8 150 STEEL CREEK PARK 10200 .6 .8 75 1.6 1.0 160 ----- ----- Basin wide percent of average 179* 157 UPPER BEAR RIVER BUG LAKE 7950 .4 .5 80 1.3 1.0 130 HAYDEN FORK 9212 .0 .4 0 1.3 1.0 130 KELLEY R.S. 8180 .5 .2 250 1.2 .8 150 LILY LAKE 9156 .0 .4 0 1.7 1.0 170 MONTE CRISTO 8960 .7 .7 100 1.7 1.2 142 SALT RIVER SUMMIT 7760 .0 .0 100 1.0 .8 125 TRIAL LAKE 9992 .3 .8 37 1.3 1.2 108 ----- ----- Basin wide percent of average 63 136 ----------------------------------------------------------------------------- -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.