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 9 , 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 .9 .5 180 COTTONWOOD CREEK 7670 .0 .0 100 .7 .7 100 GRAND TARGHEE 9260 .3 -M * 1.4 -M * GRANITE CREEK 6770 .1 .0 .7 .4 175 GRASSY LAKE 7265 .0 .0 100 .8 .8 100 GROS VENTRE SUMMIT 8750 .1 .3 33 .6 .5 120 GUNSIGHT PASS 9820 .2 -M * .4 -M * LEWIS LAKE DIVIDE 7850 .0 .0 100 1.0 .6 167 PHILLIPS BENCH 8200 .0 .0 100 .4 .5 80 SALT RIVER SUMMIT 7760 .0 .0 100 .4 .5 80 SNAKE RIVER STATION 6920 .0 .0 100 .5 .5 100 SPRING CREEK DIVIDE 9000 .0 .0 100 .3 .5 60 THUMB DIVIDE 7980 .0 .0 100 1.0 .5 200 TOGWOTEE PASS 9580 .0 .5 0 .6 .7 86 TWO OCEAN PLATEAU 9240 .1 .7 14 .5 .7 71 WILLOW CREEK 8380 .1 .1 100 1.0 .9 111 ----- ----- Basin wide percent of average 19 113 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 .0 .9 0 .3 .5 60 BLACK BEAR 8170 .0 .5 0 2.0 .7 286 CANYON 7870 .1 .1 100 .0 .4 0 FISHER CREEK 9100 .2 .6 33 .5 .7 71 MADISON PLATEAU 7750 .0 .4 0 1.0 .6 167 NORTHEAST ENTRANCE 7350 -M .1 * .3 .4 75 PARKER PEAK 9400 .0 .9 0 .4 .6 67 SYLVAN LAKE 8420 .0 .6 0 .8 .6 133 THUMB DIVIDE 7980 .0 .0 100 1.0 .5 200 TWO OCEAN PLATEAU 9240 .1 .7 14 .5 .7 71 WHISKEY CREEK 6800 .0 .1 0 .5 .5 100 WHITE MILL 8700 .1 .4 25 .3 .7 43 WOLVERINE 7650 .1 .1 100 .0 .5 0 ----- ----- Basin wide percent of average 11 103 WIND RIVER BURROUGHS CREEK 8750 .0 .2 0 .3 .4 75 COLD SPRINGS 9630 .0 .2 0 .3 .4 75 DEER PARK 9700 .0 .7 0 .8 .5 160 HOBBS PARK 10100 .1 .6 17 .3 .5 60 LITTLE WARM 9370 .0 .2 0 .4 .4 100 SOUTH PASS 9040 .0 .4 0 .8 .4 200 ST. LAWRENCE ALT 8620 .1 .2 50 .1 .4 25 TOGWOTEE PASS 9580 .0 .5 0 .6 .7 86 TOWNSEND CREEK 8700 .0 .3 0 .4 .5 80 ----- ----- Basin wide percent of average 6 95 BIGHORN BASIN BALD MTN. 9380 .0 1.2 0 .5 .7 71 BEAR TRAP MEADOW 8200 .0 .2 0 .6 .5 120 BLACKWATER 9780 .0 1.1 0 .5 .7 71 BONE SPRINGS DIV 9350 .0 .9 0 .8 .7 114 EVENING STAR 9200 .0 .9 0 .4 .7 57 GRAVE SPRINGS 8550 .0 .5 0 .5 .6 83 KIRWIN 9550 .1 .7 14 .1 .4 25 MARQUETTE 8760 .0 .7 0 .1 .6 17 MIDDLE POWDER 7760 .3 .5 60 .7 .7 100 OWL CREEK 8975 .0 .4 0 .1 .3 33 POWDER RIVER PASS 9480 .0 .4 0 .8 .6 133 SHELL CREEK 9580 .6 1.3 46 1.3 .6 217 SYLVAN LAKE 8420 .0 .6 0 .8 .6 133 SYLVAN ROAD 7120 .2 .0 .6 .4 150 TIMBER CREEK 7950 .0 .2 0 .4 .4 100 YOUNTS PEAK 8350 .0 .4 0 .2 .5 40 ----- ----- Basin wide percent of average 10 93 SHOSHONE RIVER BLACKWATER 9780 .0 1.1 0 .5 .7 71 EVENING STAR 9200 .0 .9 0 .4 .7 57 KIRWIN 9550 .1 .7 14 .1 .4 25 MARQUETTE 8760 .0 .7 0 .1 .6 17 SYLVAN LAKE 8420 .0 .6 0 .8 .6 133 SYLVAN ROAD 7120 .2 .0 .6 .4 150 YOUNTS PEAK 8350 .0 .4 0 .2 .5 40 ----- ----- Basin wide percent of average 2 69 POWDER-TONGUE BEAR TRAP MEADOW 8200 .0 .2 0 .6 .5 120 BIG GOOSE 7990 .0 .2 0 .3 .6 50 BONE SPRINGS DIV 9350 .0 .9 0 .8 .7 114 BURGESS JUNCTION 7880 .0 .5 0 .6 .6 100 CLOUD PEAK RESERVOIR 9860 .1 .4 25 .2 .7 29 DOME LAKE 8880 .0 .6 0 .2 .7 29 GRAVE SPRINGS 8550 .0 .5 0 .5 .6 83 HANSEN SAWMILL 8360 .0 .2 0 .0 .5 0 MIDDLE POWDER 7760 .3 .5 60 .7 .7 100 POWDER RIVER PASS 9480 .0 .4 0 .8 .6 133 SUCKER CREEK 8880 .0 .5 0 .4 .7 57 TIE CREEK 6870 .0 .1 0 .5 .7 71 ----- ----- Basin wide percent of average 8 74 BELLE FOURCHE BLIND PARK 6890 .0 .3 0 .0 .6 0 COLE CANYON 5910 .1 .2 50 .3 .5 60 NORTH RAPID CREEK 6130 .0 .1 0 -M .7 * ----- ----- Basin wide percent of average 17 27 UPPER N. PLATTE RIVER COLUMBINE 9160 .0 .0 100 .0 .5 0 DIVIDE PEAK 8880 .0 .4 0 1.2 .6 200 ELK RIVER 8700 .1 .0 .6 .5 120 JOE WRIGHT 10120 .1 .4 25 .4 .9 44 NORTH FRENCH CREEK 10130 .0 .8 0 .2 .7 29 OLD BATTLE 10000 .0 .7 0 .8 .7 114 SAGE CREEK BASIN 7850 .0 .0 100 .2 .4 50 SOUTH BRUSH CREEK 8440 .0 .1 0 .2 .6 33 TOWER 10500 .0 .5 0 .7 .8 87 WEBBER SPRINGS 9250 .0 .3 0 .5 .7 71 WILLOW CREEK PASS 9540 .0 .1 0 .4 .5 80 ----- ----- Basin wide percent of average 3 75 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .0 .5 0 .0 .6 0 CASPER MTN. 7900 .0 .3 0 .1 .5 20 DEADMAN HILL 10220 .0 .6 0 .2 .6 33 DEER PARK 9700 .0 .7 0 .8 .5 160 LAPRELE CREEK 8375 .0 .1 0 .0 .4 0 RENO HILL 8400 .0 .4 0 .0 .6 0 ROACH 9700 .1 .1 100 .2 .6 33 SAND LAKE 10050 .0 .8 0 .0 .7 0 SOUTH PASS 9040 .0 .4 0 .8 .4 200 WINDY PEAK 7900 .1 .0 .1 .4 25 ----- ----- Basin wide percent of average 3 42 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100 .4 .4 100 DIVIDE PEAK 8880 .0 .4 0 1.2 .6 200 OLD BATTLE 10000 .0 .7 0 .8 .7 114 SANDSTONE RS 8150 .0 .0 100 .3 .5 60 WHISKEY PARK 8950 .0 .3 0 .5 .7 71 ----- ----- Basin wide percent of average 0 110 UPPER GREEN RIVER BIG SANDY OPENING 9080 .1 .2 50 .7 .4 175 BLIND BULL SUM 8650 .0 .2 0 .5 .5 100 EAST RIM DIVIDE 7930 .0 .0 100 .4 .3 133 ELKHART PARK G.S. 9400 .1 .1 100 .8 .5 160 GROS VENTRE SUMMIT 8750 .1 .3 33 .6 .5 120 GUNSIGHT PASS 9820 .2 -M * .4 -M * KENDALL R.S. 7740 .0 .0 100 .4 .4 100 LOOMIS PARK 8240 .0 .1 0 .7 .5 140 NEW FORK LAKE 8340 .0 .0 100 .4 .4 100 SNIDER BASIN 8060 .0 .0 100 .1 .3 33 SPRING CREEK DIVIDE 9000 .0 .0 100 .3 .5 60 TRIPLE PEAK 8500 .1 .1 100 .3 .5 60 ----- ----- Basin wide percent of average 40 108 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100 .2 .3 67 HEWINTA 9519 .0 .2 0 .2 .6 33 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 .0 .0 100 .5 .5 100 STEEL CREEK PARK 10200 .0 .5 0 .4 .6 67 ----- ----- Basin wide percent of average 0 67 UPPER BEAR RIVER BUG LAKE 7950 .0 .3 0 .7 .6 117 HAYDEN FORK 9212 .0 .2 0 .9 .6 150 KELLEY R.S. 8180 .0 .0 100 .5 .5 100 LILY LAKE 9156 .1 .3 33 .9 .5 180 MONTE CRISTO 8960 .0 .4 0 1.0 .7 143 SALT RIVER SUMMIT 7760 .0 .0 100 .4 .5 80 TRIAL LAKE 9992 .1 .6 17 1.0 .7 143 ----- ----- Basin wide percent of average 11 132 ----------------------------------------------------------------------------- -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.