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 8 , 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 .0 100 .7 .4 175 COTTONWOOD CREEK 7670 .0 .0 100 .6 .6 100 GRAND TARGHEE 9260 .4 -M * 1.4 -M * GRANITE CREEK 6770 .1 .0 .7 .4 175 GRASSY LAKE 7265 .1 .0 1.0 .7 143 GROS VENTRE SUMMIT 8750 .2 .3 67 .6 .4 150 GUNSIGHT PASS 9820 .3 -M * .4 -M * LEWIS LAKE DIVIDE 7850 .0 .0 100 1.2 .6 200 PHILLIPS BENCH 8200 .0 .0 100 .5 .5 100 SALT RIVER SUMMIT 7760 .0 .0 100 .4 .4 100 SNAKE RIVER STATION 6920 .1 .0 .5 .5 100 SPRING CREEK DIVIDE 9000 .0 .0 100 .4 .5 80 THUMB DIVIDE 7980 .0 .0 100 1.2 .4 300 TOGWOTEE PASS 9580 .0 .5 0 .6 .6 100 TWO OCEAN PLATEAU 9240 .3 .6 50 .7 .6 117 WILLOW CREEK 8380 .1 .1 100 1.0 .8 125 ----- ----- Basin wide percent of average 40 136 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 .2 .9 22 .4 .4 100 BLACK BEAR 8170 .0 .5 0 2.0 .6 333 CANYON 7870 .1 .1 100 .3 .3 100 FISHER CREEK 9100 .1 .6 17 .9 .6 150 MADISON PLATEAU 7750 .0 .4 0 1.1 .5 220 NORTHEAST ENTRANCE 7350 .0 .0 100 .4 .4 100 PARKER PEAK 9400 .0 .9 0 .5 .6 83 SYLVAN LAKE 8420 .0 .6 0 .9 .6 150 THUMB DIVIDE 7980 .0 .0 100 1.2 .4 300 TWO OCEAN PLATEAU 9240 .3 .6 50 .7 .6 117 WHISKEY CREEK 6800 .0 .1 0 .8 .4 200 WHITE MILL 8700 .2 .4 50 .6 .6 100 WOLVERINE 7650 .1 .1 100 .2 .4 50 ----- ----- Basin wide percent of average 19 156 WIND RIVER BURROUGHS CREEK 8750 .1 .2 50 .0 .4 0 COLD SPRINGS 9630 .1 .2 50 .3 .4 75 DEER PARK 9700 .0 .7 0 .9 .5 180 HOBBS PARK 10100 .2 .6 33 .3 .4 75 LITTLE WARM 9370 .0 .2 0 .4 .4 100 SOUTH PASS 9040 .0 .4 0 .7 .4 175 ST. LAWRENCE ALT 8620 .1 .2 50 .1 .4 25 TOGWOTEE PASS 9580 .0 .5 0 .6 .6 100 TOWNSEND CREEK 8700 .2 .2 100 .6 .5 120 ----- ----- Basin wide percent of average 22 98 BIGHORN BASIN BALD MTN. 9380 .2 1.1 18 .7 .6 117 BEAR TRAP MEADOW 8200 .2 .1 200 .7 .4 175 BLACKWATER 9780 .0 1.1 0 .5 .6 83 BONE SPRINGS DIV 9350 .0 .9 0 .8 .6 133 EVENING STAR 9200 .2 .9 22 .6 .6 100 GRAVE SPRINGS 8550 .1 .4 25 .5 .6 83 KIRWIN 9550 .2 .6 33 .2 .4 50 MARQUETTE 8760 .0 .7 0 .5 .5 100 MIDDLE POWDER 7760 .3 .4 75 .6 .6 100 OWL CREEK 8975 .1 .4 25 .2 .3 67 POWDER RIVER PASS 9480 .1 .4 25 .8 .5 160 SHELL CREEK 9580 .6 1.1 55 1.2 .5 240 SYLVAN LAKE 8420 .0 .6 0 .9 .6 150 SYLVAN ROAD 7120 .1 .0 .5 .4 125 TIMBER CREEK 7950 .0 .2 0 .2 .4 50 YOUNTS PEAK 8350 .0 .3 0 .2 .4 50 ----- ----- Basin wide percent of average 22 114 SHOSHONE RIVER BLACKWATER 9780 .0 1.1 0 .5 .6 83 EVENING STAR 9200 .2 .9 22 .6 .6 100 KIRWIN 9550 .2 .6 33 .2 .4 50 MARQUETTE 8760 .0 .7 0 .5 .5 100 SYLVAN LAKE 8420 .0 .6 0 .9 .6 150 SYLVAN ROAD 7120 .1 .0 .5 .4 125 YOUNTS PEAK 8350 .0 .3 0 .2 .4 50 ----- ----- Basin wide percent of average 10 97 POWDER-TONGUE BEAR TRAP MEADOW 8200 .2 .1 200 .7 .4 175 BIG GOOSE 7990 .0 .2 0 .4 .5 80 BONE SPRINGS DIV 9350 .0 .9 0 .8 .6 133 BURGESS JUNCTION 7880 .0 .5 0 .5 .5 100 CLOUD PEAK RESERVOIR 9860 .1 .3 33 .7 .6 117 DOME LAKE 8880 .0 .5 0 .3 .6 50 GRAVE SPRINGS 8550 .1 .4 25 .5 .6 83 HANSEN SAWMILL 8360 .1 .1 100 .2 .4 50 MIDDLE POWDER 7760 .3 .4 75 .6 .6 100 POWDER RIVER PASS 9480 .1 .4 25 .8 .5 160 SUCKER CREEK 8880 .1 .4 25 .7 .6 117 TIE CREEK 6870 .0 .1 0 .6 .6 100 ----- ----- Basin wide percent of average 23 105 BELLE FOURCHE BLIND PARK 6890 .1 .5 20 .0 .6 0 COLE CANYON 5910 .3 .0 .6 .4 150 NORTH RAPID CREEK 6130 .0 .0 100 .1 .6 17 ----- ----- Basin wide percent of average 20 44 UPPER N. PLATTE RIVER COLUMBINE 9160 .0 .0 100 .0 .5 0 DIVIDE PEAK 8880 .0 .4 0 1.2 .5 240 ELK RIVER 8700 .1 .0 .6 .4 150 JOE WRIGHT 10120 .1 .4 25 .4 .7 57 NORTH FRENCH CREEK 10130 .0 .7 0 .2 .6 33 OLD BATTLE 10000 .0 .6 0 .8 .6 133 SAGE CREEK BASIN 7850 .0 .0 100 .2 .3 67 SOUTH BRUSH CREEK 8440 .0 .1 0 .2 .5 40 TOWER 10500 .0 .5 0 .8 .7 114 WEBBER SPRINGS 9250 .0 .3 0 .5 .6 83 WILLOW CREEK PASS 9540 .0 .1 0 .4 .4 100 ----- ----- Basin wide percent of average 3 91 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .1 .5 20 .0 .5 0 CASPER MTN. 7900 .0 .3 0 .1 .5 20 DEADMAN HILL 10220 .0 .5 0 .2 .5 40 DEER PARK 9700 .0 .7 0 .9 .5 180 LAPRELE CREEK 8375 .0 .1 0 .1 .4 25 RENO HILL 8400 .0 .4 0 .0 .5 0 ROACH 9700 .1 .1 100 .2 .5 40 SAND LAKE 10050 .0 .8 0 .0 .6 0 SOUTH PASS 9040 .0 .4 0 .7 .4 175 WINDY PEAK 7900 .3 .0 .3 .4 75 ----- ----- Basin wide percent of average 5 52 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100 .5 .3 167 DIVIDE PEAK 8880 .0 .4 0 1.2 .5 240 OLD BATTLE 10000 .0 .6 0 .8 .6 133 SANDSTONE RS 8150 .0 .0 100 .4 .4 100 WHISKEY PARK 8950 .0 .2 0 .5 .6 83 ----- ----- Basin wide percent of average 0 142 UPPER GREEN RIVER BIG SANDY OPENING 9080 .1 .2 50 .7 .4 175 BLIND BULL SUM 8650 .1 .1 100 .5 .4 125 EAST RIM DIVIDE 7930 .0 .0 100 .5 .3 167 ELKHART PARK G.S. 9400 .1 .0 .8 .5 160 GROS VENTRE SUMMIT 8750 .2 .3 67 .6 .4 150 GUNSIGHT PASS 9820 .3 -M * .4 -M * KENDALL R.S. 7740 .1 .0 .5 .3 167 LOOMIS PARK 8240 .0 .1 0 .7 .4 175 NEW FORK LAKE 8340 .0 .0 100 .5 .4 125 SNIDER BASIN 8060 .1 .0 .2 .3 67 SPRING CREEK DIVIDE 9000 .0 .0 100 .4 .5 80 TRIPLE PEAK 8500 .2 .0 .4 .5 80 ----- ----- Basin wide percent of average 57 132 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100 .3 .3 100 HEWINTA 9519 .0 .2 0 .1 .5 20 HICKERSON PARK 9145 .0 .0 100 .3 .4 75 HOLE-IN-ROCK 9150 .0 .0 100 .3 .4 75 INDIAN CREEK 9425 .0 .2 0 .3 .5 60 KELLEY R.S. 8180 .1 .0 .6 .4 150 STEEL CREEK PARK 10200 .0 .5 0 .4 .5 80 ----- ----- Basin wide percent of average 0 77 UPPER BEAR RIVER BUG LAKE 7950 .1 .3 33 .8 .5 160 HAYDEN FORK 9212 .0 .2 0 .8 .5 160 KELLEY R.S. 8180 .1 .0 .6 .4 150 LILY LAKE 9156 .0 .3 0 .9 .5 180 MONTE CRISTO 8960 .0 .4 0 1.0 .6 167 SALT RIVER SUMMIT 7760 .0 .0 100 .4 .4 100 TRIAL LAKE 9992 .1 .5 20 1.0 .6 167 ----- ----- Basin wide percent of average 12 157 ----------------------------------------------------------------------------- -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.