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 SATURDAY: OCTOBER 11 , 2008 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .2 .0 1.3 .6 217 COTTONWOOD CREEK 7670 .0 .0 100 .8 .9 89 GRAND TARGHEE 9260 .7 -M * 1.8 -M * GRANITE CREEK 6770 .2 .0 .8 .5 160 GRASSY LAKE 7265 .4 .1 400 1.3 1.0 130 GROS VENTRE SUMMIT 8750 .4 .4 100 .8 .6 133 GUNSIGHT PASS 9820 .1 -M * .4 -M * LEWIS LAKE DIVIDE 7850 .0 .0 100 1.4 .8 175 PHILLIPS BENCH 8200 .0 .0 100 .6 .7 86 SALT RIVER SUMMIT 7760 .0 .0 100 .4 .6 67 SNAKE RIVER STATION 6920 .3 .0 .9 .7 129 SPRING CREEK DIVIDE 9000 .1 .1 100 .5 .7 71 THUMB DIVIDE 7980 .1 .0 1.3 .6 217 TOGWOTEE PASS 9580 .4 .7 57 1.0 .9 111 TWO OCEAN PLATEAU 9240 .8 .8 100 .9 .9 100 WILLOW CREEK 8380 .2 .2 100 1.1 1.1 100 ----- ----- Basin wide percent of average 100 124 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 .4 1.0 40 .5 .6 83 BLACK BEAR 8170 .5 .6 83 2.4 .9 267 CANYON 7870 .3 .2 150 .2 .5 40 FISHER CREEK 9100 .6 .7 86 .8 .9 89 MADISON PLATEAU 7750 .2 .4 50 1.1 .8 138 NORTHEAST ENTRANCE 7350 .3 .0 .6 .5 120 PARKER PEAK 9400 .5 1.0 50 1.1 .8 138 SYLVAN LAKE 8420 .3 .6 50 1.2 .8 150 THUMB DIVIDE 7980 .1 .0 1.3 .6 217 TWO OCEAN PLATEAU 9240 .8 .8 100 .9 .9 100 WHISKEY CREEK 6800 .0 .1 0 .8 .6 133 WHITE MILL 8700 .5 .5 100 .7 .8 87 WOLVERINE 7650 .5 .1 500 .3 .6 50 ----- ----- Basin wide percent of average 77 128 WIND RIVER BURROUGHS CREEK 8750 .8 .2 400 1.0 .5 200 COLD SPRINGS 9630 .4 .2 200 .8 .6 133 DEER PARK 9700 .4 .7 57 1.4 .7 200 HOBBS PARK 10100 1.0 .7 143 1.1 .6 183 LITTLE WARM 9370 .7 .3 233 .8 .5 160 SOUTH PASS 9040 .5 .4 125 1.6 .6 267 ST. LAWRENCE ALT 8620 .8 .1 800 .9 .5 180 TOGWOTEE PASS 9580 .4 .7 57 1.0 .9 111 TOWNSEND CREEK 8700 .7 .3 233 1.0 .7 143 ----- ----- Basin wide percent of average 158 171 BIGHORN BASIN BALD MTN. 9380 1.1 1.3 85 1.2 .8 150 BEAR TRAP MEADOW 8200 .5 .2 250 1.2 .6 200 BLACKWATER 9780 .6 1.3 46 .9 .8 112 BONE SPRINGS DIV 9350 .8 1.1 73 1.3 .9 144 EVENING STAR 9200 .5 1.0 50 1.0 .8 125 GRAVE SPRINGS 8550 .4 .4 100 1.0 .8 125 KIRWIN 9550 .6 .8 75 .5 .6 83 MARQUETTE 8760 .5 .8 62 .8 .7 114 MIDDLE POWDER 7760 .7 .5 140 1.3 .8 162 OWL CREEK 8975 .6 .4 150 .5 .4 125 POWDER RIVER PASS 9480 .5 .4 125 1.3 .7 186 SHELL CREEK 9580 1.2 1.4 86 2.0 .7 286 SYLVAN LAKE 8420 .3 .6 50 1.2 .8 150 SYLVAN ROAD 7120 .3 .0 .9 .5 180 TIMBER CREEK 7950 .6 .1 600 1.3 .5 260 YOUNTS PEAK 8350 .5 .5 100 .8 .6 133 ----- ----- Basin wide percent of average 87 156 SHOSHONE RIVER BLACKWATER 9780 .6 1.3 46 .9 .8 112 EVENING STAR 9200 .5 1.0 50 1.0 .8 125 KIRWIN 9550 .6 .8 75 .5 .6 83 MARQUETTE 8760 .5 .8 62 .8 .7 114 SYLVAN LAKE 8420 .3 .6 50 1.2 .8 150 SYLVAN ROAD 7120 .3 .0 .9 .5 180 YOUNTS PEAK 8350 .5 .5 100 .8 .6 133 ----- ----- Basin wide percent of average 60 127 POWDER-TONGUE BEAR TRAP MEADOW 8200 .5 .2 250 1.2 .6 200 BIG GOOSE 7990 .1 .2 50 .7 .8 87 BONE SPRINGS DIV 9350 .8 1.1 73 1.3 .9 144 BURGESS JUNCTION 7880 .6 .6 100 1.2 .8 150 CLOUD PEAK RESERVOIR 9860 .6 .4 150 .7 .9 78 DOME LAKE 8880 .2 .7 29 .8 .8 100 GRAVE SPRINGS 8550 .4 .4 100 1.0 .8 125 HANSEN SAWMILL 8360 .6 .2 300 .4 .6 67 MIDDLE POWDER 7760 .7 .5 140 1.3 .8 162 POWDER RIVER PASS 9480 .5 .4 125 1.3 .7 186 SUCKER CREEK 8880 .6 .5 120 1.2 .8 150 TIE CREEK 6870 .2 .0 1.1 .9 122 ----- ----- Basin wide percent of average 108 130 BELLE FOURCHE BLIND PARK 6890 .7 .1 700 .8 .8 100 COLE CANYON 5910 .8 .2 400 1.4 .6 233 NORTH RAPID CREEK 6130 .4 .1 400 1.1 .8 138 ----- ----- Basin wide percent of average 475 150 UPPER N. PLATTE RIVER COLUMBINE 9160 .1 .0 .2 .6 33 DIVIDE PEAK 8880 .0 .5 0 1.3 .8 162 ELK RIVER 8700 .1 .1 100 .8 .6 133 JOE WRIGHT 10120 .0 .5 0 .4 1.1 36 NORTH FRENCH CREEK 10130 .2 1.0 20 .4 .9 44 OLD BATTLE 10000 .2 .8 25 1.0 1.0 100 SAGE CREEK BASIN 7850 .0 .1 0 .5 .5 100 SOUTH BRUSH CREEK 8440 .0 .1 0 .2 .8 25 TOWER 10500 .0 .7 0 .8 1.0 80 WEBBER SPRINGS 9250 .0 .4 0 .7 .9 78 WILLOW CREEK PASS 9540 .0 .2 0 .4 .6 67 ----- ----- Basin wide percent of average 11 76 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .1 .7 14 .0 .7 0 CASPER MTN. 7900 .1 .4 25 .9 .7 129 DEADMAN HILL 10220 .0 .7 0 .1 .8 12 DEER PARK 9700 .4 .7 57 1.4 .7 200 LAPRELE CREEK 8375 .0 .2 0 .1 .5 20 RENO HILL 8400 .3 .5 60 .3 .7 43 ROACH 9700 .1 .2 50 .2 .7 29 SAND LAKE 10050 .3 1.0 30 .0 .9 0 SOUTH PASS 9040 .5 .4 125 1.6 .6 267 WINDY PEAK 7900 .2 .1 200 .0 .5 0 ----- ----- Basin wide percent of average 41 68 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100 .5 .5 100 DIVIDE PEAK 8880 .0 .5 0 1.3 .8 162 OLD BATTLE 10000 .2 .8 25 1.0 1.0 100 SANDSTONE RS 8150 .0 .0 100 .4 .6 67 WHISKEY PARK 8950 .0 .4 0 .8 .9 89 ----- ----- Basin wide percent of average 12 105 UPPER GREEN RIVER BIG SANDY OPENING 9080 .3 .3 100 .9 .6 150 BLIND BULL SUM 8650 .2 .2 100 .8 .6 133 EAST RIM DIVIDE 7930 .0 .0 100 .6 .4 150 ELKHART PARK G.S. 9400 .1 .1 100 .9 .6 150 GROS VENTRE SUMMIT 8750 .4 .4 100 .8 .6 133 GUNSIGHT PASS 9820 .1 -M * .4 -M * KENDALL R.S. 7740 .1 .0 .5 .5 100 LOOMIS PARK 8240 .1 .1 100 .9 .6 150 NEW FORK LAKE 8340 .0 .0 100 .5 .5 100 SNIDER BASIN 8060 .2 .1 200 .3 .4 75 SPRING CREEK DIVIDE 9000 .1 .1 100 .5 .7 71 TRIPLE PEAK 8500 .2 .1 200 .4 .7 57 ----- ----- Basin wide percent of average 114 115 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100 .4 .4 100 HEWINTA 9519 .0 .3 0 .4 .7 57 HICKERSON PARK 9145 .0 .0 100 .6 .5 120 HOLE-IN-ROCK 9150 .1 .0 .7 .5 140 INDIAN CREEK 9425 .0 .3 0 .4 .7 57 KELLEY R.S. 8180 .1 .1 100 .6 .6 100 STEEL CREEK PARK 10200 .0 .6 0 .6 .7 86 ----- ----- Basin wide percent of average 8 90 UPPER BEAR RIVER BUG LAKE 7950 .1 .4 25 .8 .7 114 HAYDEN FORK 9212 .0 .3 0 .9 .7 129 KELLEY R.S. 8180 .1 .1 100 .6 .6 100 LILY LAKE 9156 .1 .3 33 1.0 .7 143 MONTE CRISTO 8960 .0 .5 0 1.1 .9 122 SALT RIVER SUMMIT 7760 .0 .0 100 .4 .6 67 TRIAL LAKE 9992 .1 .6 17 1.0 .8 125 ----- ----- Basin wide percent of average 18 116 ----------------------------------------------------------------------------- -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.