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 MONDAY: OCTOBER 13 , 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 1.5 .7 214 COTTONWOOD CREEK 7670 .3 .0 1.3 1.0 130 GRAND TARGHEE 9260 .9 -M * 2.4 -M * GRANITE CREEK 6770 .5 .0 1.5 .6 250 GRASSY LAKE 7265 1.0 .2 500 1.8 1.2 150 GROS VENTRE SUMMIT 8750 1.2 .5 240 1.7 .7 243 GUNSIGHT PASS 9820 .4 -M * .8 -M * LEWIS LAKE DIVIDE 7850 .5 .0 1.7 1.0 170 PHILLIPS BENCH 8200 .8 .1 800 1.3 .8 162 SALT RIVER SUMMIT 7760 .0 .0 100 .8 .7 114 SNAKE RIVER STATION 6920 .3 .0 1.1 .8 138 SPRING CREEK DIVIDE 9000 .6 .2 300 1.0 .8 125 THUMB DIVIDE 7980 .6 .1 600 2.0 .8 250 TOGWOTEE PASS 9580 1.1 .8 138 1.6 1.0 160 TWO OCEAN PLATEAU 9240 1.0 1.0 100 1.2 1.1 109 WILLOW CREEK 8380 .9 .3 300 1.7 1.4 121 ----- ----- Basin wide percent of average 227 160 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 .7 1.1 64 .7 .8 87 BLACK BEAR 8170 1.1 .7 157 3.0 1.1 273 CANYON 7870 .5 .2 250 .4 .6 67 FISHER CREEK 9100 .9 .8 112 1.2 1.1 109 MADISON PLATEAU 7750 .7 .4 175 1.6 1.0 160 NORTHEAST ENTRANCE 7350 .5 .0 .8 .6 133 PARKER PEAK 9400 1.2 1.0 120 1.2 1.0 120 SYLVAN LAKE 8420 .4 .6 67 1.4 1.0 140 THUMB DIVIDE 7980 .6 .1 600 2.0 .8 250 TWO OCEAN PLATEAU 9240 1.0 1.0 100 1.2 1.1 109 WHISKEY CREEK 6800 .2 .1 200 1.2 .7 171 WHITE MILL 8700 .8 .6 133 .9 1.0 90 WOLVERINE 7650 1.2 .1 1200 .8 .8 100 ----- ----- Basin wide percent of average 139 141 WIND RIVER BURROUGHS CREEK 8750 1.6 .2 800 1.9 .6 317 COLD SPRINGS 9630 1.5 .2 750 2.0 .7 286 DEER PARK 9700 1.3 .8 162 2.4 .8 300 HOBBS PARK 10100 2.1 .7 300 2.2 .8 275 LITTLE WARM 9370 1.3 .3 433 1.6 .6 267 SOUTH PASS 9040 1.3 .4 325 2.8 .7 400 ST. LAWRENCE ALT 8620 1.8 .1 1800 2.2 .7 314 TOGWOTEE PASS 9580 1.1 .8 138 1.6 1.0 160 TOWNSEND CREEK 8700 1.9 .2 950 2.4 .8 300 ----- ----- Basin wide percent of average 376 285 BIGHORN BASIN BALD MTN. 9380 1.6 1.4 114 1.9 1.0 190 BEAR TRAP MEADOW 8200 .7 .1 700 1.5 .7 214 BLACKWATER 9780 1.0 1.3 77 1.4 1.0 140 BONE SPRINGS DIV 9350 1.3 1.1 118 1.6 1.0 160 EVENING STAR 9200 1.1 1.0 110 1.6 1.0 160 GRAVE SPRINGS 8550 .9 .3 300 1.7 .9 189 KIRWIN 9550 1.2 .8 150 1.2 .7 171 MARQUETTE 8760 1.7 .8 212 1.7 .9 189 MIDDLE POWDER 7760 1.1 .5 220 1.8 1.0 180 OWL CREEK 8975 1.6 .4 400 1.5 .5 300 POWDER RIVER PASS 9480 .8 .4 200 1.5 .8 188 SHELL CREEK 9580 1.8 1.5 120 2.3 .8 287 SYLVAN LAKE 8420 .4 .6 67 1.4 1.0 140 SYLVAN ROAD 7120 .4 .0 1.0 .6 167 TIMBER CREEK 7950 1.4 .1 1400 2.2 .6 367 YOUNTS PEAK 8350 .8 .5 160 1.2 .7 171 ----- ----- Basin wide percent of average 161 193 SHOSHONE RIVER BLACKWATER 9780 1.0 1.3 77 1.4 1.0 140 EVENING STAR 9200 1.1 1.0 110 1.6 1.0 160 KIRWIN 9550 1.2 .8 150 1.2 .7 171 MARQUETTE 8760 1.7 .8 212 1.7 .9 189 SYLVAN LAKE 8420 .4 .6 67 1.4 1.0 140 SYLVAN ROAD 7120 .4 .0 1.0 .6 167 YOUNTS PEAK 8350 .8 .5 160 1.2 .7 171 ----- ----- Basin wide percent of average 124 161 POWDER-TONGUE BEAR TRAP MEADOW 8200 .7 .1 700 1.5 .7 214 BIG GOOSE 7990 .7 .3 233 1.3 .9 144 BONE SPRINGS DIV 9350 1.3 1.1 118 1.6 1.0 160 BURGESS JUNCTION 7880 1.0 .6 167 1.7 .9 189 CLOUD PEAK RESERVOIR 9860 1.3 .4 325 1.2 1.1 109 DOME LAKE 8880 .8 .7 114 1.4 1.0 140 GRAVE SPRINGS 8550 .9 .3 300 1.7 .9 189 HANSEN SAWMILL 8360 1.1 .2 550 1.0 .7 143 MIDDLE POWDER 7760 1.1 .5 220 1.8 1.0 180 POWDER RIVER PASS 9480 .8 .4 200 1.5 .8 188 SUCKER CREEK 8880 1.2 .5 240 1.7 1.0 170 TIE CREEK 6870 1.7 .0 2.6 1.1 236 ----- ----- Basin wide percent of average 214 171 BELLE FOURCHE BLIND PARK 6890 .8 .0 1.0 1.0 100 COLE CANYON 5910 1.4 .2 700 2.4 .7 343 NORTH RAPID CREEK 6130 .5 .1 500 1.4 1.0 140 ----- ----- Basin wide percent of average 633 178 UPPER N. PLATTE RIVER COLUMBINE 9160 .0 .0 100 .1 .8 12 DIVIDE PEAK 8880 .1 .6 17 1.8 1.0 180 ELK RIVER 8700 .0 .1 0 1.0 .8 125 JOE WRIGHT 10120 .2 .7 29 .8 1.3 62 NORTH FRENCH CREEK 10130 .6 1.2 50 1.2 1.1 109 OLD BATTLE 10000 .1 1.0 10 1.2 1.2 100 SAGE CREEK BASIN 7850 .0 .2 0 .8 .6 133 SOUTH BRUSH CREEK 8440 .0 .1 0 .6 .9 67 TOWER 10500 .2 .8 25 1.1 1.2 92 WEBBER SPRINGS 9250 .0 .4 0 .8 1.1 73 WILLOW CREEK PASS 9540 .0 .3 0 .5 .7 71 ----- ----- Basin wide percent of average 22 93 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .3 .8 37 .4 .9 44 CASPER MTN. 7900 .5 .5 100 1.4 .9 156 DEADMAN HILL 10220 .1 .8 12 .5 .9 56 DEER PARK 9700 1.3 .8 162 2.4 .8 300 LAPRELE CREEK 8375 .0 .2 0 .4 .7 57 RENO HILL 8400 .9 .6 150 .9 .9 100 ROACH 9700 .5 .2 250 .6 .9 67 SAND LAKE 10050 .7 1.1 64 .5 1.1 45 SOUTH PASS 9040 1.3 .4 325 2.8 .7 400 WINDY PEAK 7900 .3 .1 300 .1 .6 17 ----- ----- Basin wide percent of average 107 119 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100 .5 .6 83 DIVIDE PEAK 8880 .1 .6 17 1.8 1.0 180 OLD BATTLE 10000 .1 1.0 10 1.2 1.2 100 SANDSTONE RS 8150 .0 .0 100 .6 .8 75 WHISKEY PARK 8950 .0 .4 0 .9 1.1 82 ----- ----- Basin wide percent of average 10 106 UPPER GREEN RIVER BIG SANDY OPENING 9080 .6 .3 200 1.1 .7 157 BLIND BULL SUM 8650 1.3 .3 433 1.9 .7 271 EAST RIM DIVIDE 7930 .9 .0 1.6 .5 320 ELKHART PARK G.S. 9400 .6 .2 300 1.5 .8 188 GROS VENTRE SUMMIT 8750 1.2 .5 240 1.7 .7 243 GUNSIGHT PASS 9820 .4 -M * .8 -M * KENDALL R.S. 7740 .8 .0 1.3 .6 217 LOOMIS PARK 8240 1.1 .2 550 1.9 .7 271 NEW FORK LAKE 8340 .6 .0 1.0 .6 167 SNIDER BASIN 8060 .8 .1 800 .9 .5 180 SPRING CREEK DIVIDE 9000 .6 .2 300 1.0 .8 125 TRIPLE PEAK 8500 1.3 .2 650 1.6 .8 200 ----- ----- Basin wide percent of average 375 209 LOWER GREEN RIVER HAMS FORK 7840 .3 .0 1.1 .5 220 HEWINTA 9519 .1 .3 33 .7 .9 78 HICKERSON PARK 9145 .0 .0 100 .9 .6 150 HOLE-IN-ROCK 9150 .5 .0 1.6 .7 229 INDIAN CREEK 9425 1.2 .3 400 1.4 .8 175 KELLEY R.S. 8180 .6 .1 600 1.2 .7 171 STEEL CREEK PARK 10200 .6 .7 86 1.2 .8 150 ----- ----- Basin wide percent of average 179 162 UPPER BEAR RIVER BUG LAKE 7950 .4 .4 100 1.2 .9 133 HAYDEN FORK 9212 .1 .3 33 1.2 .9 133 KELLEY R.S. 8180 .6 .1 600 1.2 .7 171 LILY LAKE 9156 .6 .4 150 1.7 .9 189 MONTE CRISTO 8960 .6 .6 100 1.6 1.0 160 SALT RIVER SUMMIT 7760 .0 .0 100 .8 .7 114 TRIAL LAKE 9992 .3 .7 43 1.3 1.0 130 ----- ----- Basin wide percent of average 104 148 ----------------------------------------------------------------------------- -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.