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 SUNDAY: OCTOBER 4 , 2009 ----------------------------------------------------------------------------- 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 .0 .1 0 COTTONWOOD CREEK 7670 .6 .0 .1 .2 50 GRAND TARGHEE 9260 2.0 -M * .4 -M * GRANITE CREEK 6770 .1 .0 .1 .1 100 GRASSY LAKE 7265 .2 .0 .1 .2 50 GROS VENTRE SUMMIT 8750 .1 .0 .1 .1 100 GUNSIGHT PASS 9820 .0 -M * .2 -M * LEWIS LAKE DIVIDE 7850 .0 .0 100 .1 .2 50 PHILLIPS BENCH 8200 .0 .0 100 .1 .1 100 SALT RIVER SUMMIT 7760 .3 .0 .2 .1 200 SNAKE RIVER STATION 6920 .0 .0 100 .1 .1 100 SPRING CREEK DIVIDE 9000 .3 .0 .3 .1 300 THUMB DIVIDE 7980 .0 .0 100 .2 .1 200 TOGWOTEE PASS 9580 .6 .1 600 .2 .2 100 TWO OCEAN PLATEAU 9240 .4 .2 200 .0 .2 0 WILLOW CREEK 8380 .8 .0 .1 .2 50 ----- ----- Basin wide percent of average 333* 85 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 .6 .5 120 .1 .1 100 BLACK BEAR 8170 .1 .3 33 .1 .2 50 CANYON 7870 .0 .1 0 .3 .1 300 FISHER CREEK 9100 .3 .3 100 .2 .2 100 MADISON PLATEAU 7750 .1 .2 50 .1 .2 50 NORTHEAST ENTRANCE 7350 .0 .0 100 .1 .1 100 PARKER PEAK 9400 -M .6 * .1 .2 50 SYLVAN LAKE 8420 .0 .5 0 .0 .2 0 THUMB DIVIDE 7980 .0 .0 100 .2 .1 200 TWO OCEAN PLATEAU 9240 .4 .2 200 .0 .2 0 WHISKEY CREEK 6800 .2 .1 200 .4 .1 400 WHITE MILL 8700 .2 .2 100 .1 .2 50 WOLVERINE 7650 .1 .0 .1 .1 100 ----- ----- Basin wide percent of average 79 90 WIND RIVER BURROUGHS CREEK 8750 .1 .2 50 .4 .1 400 COLD SPRINGS 9630 .1 .2 50 .3 .1 300 DEER PARK 9700 .0 .3 0 .1 .1 100 HOBBS PARK 10100 .1 .4 25 -M .1 * LITTLE WARM 9370 .0 .2 0 .1 .1 100 SOUTH PASS 9040 .0 .2 0 .0 .1 0 ST. LAWRENCE ALT 8620 .0 .1 0 .1 .1 100 TOGWOTEE PASS 9580 .6 .1 600 .2 .2 100 TOWNSEND CREEK 8700 .1 .1 100 .0 .1 0 ----- ----- Basin wide percent of average 56 133 BIGHORN BASIN BALD MTN. 9380 .8 .7 114 .2 .2 100 BEAR TRAP MEADOW 8200 .1 .2 50 .1 .1 100 BLACKWATER 9780 .6 .7 86 .2 .2 100 BONE SPRINGS DIV 9350 .8 .6 133 .2 .2 100 EVENING STAR 9200 .4 .6 67 .2 .2 100 GRAVE SPRINGS 8550 .5 .1 500 .3 .2 150 KIRWIN 9550 .7 .4 175 .1 .1 100 MARQUETTE 8760 .3 .5 60 .1 .2 50 MIDDLE POWDER 7760 1.1 .3 367 .4 .2 200 OWL CREEK 8975 .5 .3 167 .1 .1 100 POWDER RIVER PASS 9480 .2 .3 67 .2 .1 200 SHELL CREEK 9580 .4 .8 50 .2 .1 200 SYLVAN LAKE 8420 .0 .5 0 .0 .2 0 SYLVAN ROAD 7120 .2 .0 .1 .1 100 TIMBER CREEK 7950 .0 .1 0 .1 .1 100 YOUNTS PEAK 8350 .2 .2 100 .1 .1 100 ----- ----- Basin wide percent of average 105 108 SHOSHONE RIVER BLACKWATER 9780 .6 .7 86 .2 .2 100 EVENING STAR 9200 .4 .6 67 .2 .2 100 KIRWIN 9550 .7 .4 175 .1 .1 100 MARQUETTE 8760 .3 .5 60 .1 .2 50 SYLVAN LAKE 8420 .0 .5 0 .0 .2 0 SYLVAN ROAD 7120 .2 .0 .1 .1 100 YOUNTS PEAK 8350 .2 .2 100 .1 .1 100 ----- ----- Basin wide percent of average 76 73 POWDER-TONGUE BEAR TRAP MEADOW 8200 .1 .2 50 .1 .1 100 BIG GOOSE 7990 .1 .0 .1 .2 50 BONE SPRINGS DIV 9350 .8 .6 133 .2 .2 100 BURGESS JUNCTION 7880 .5 .4 125 .2 .2 100 CLOUD PEAK RESERVOIR 9860 .3 .2 150 .1 .2 50 DOME LAKE 8880 .0 .3 0 .2 .2 100 GRAVE SPRINGS 8550 .5 .1 500 .3 .2 150 HANSEN SAWMILL 8360 .1 .1 100 .0 .1 0 MIDDLE POWDER 7760 1.1 .3 367 .4 .2 200 POWDER RIVER PASS 9480 .2 .3 67 .2 .1 200 SUCKER CREEK 8880 .4 .3 133 .2 .2 100 TIE CREEK 6870 .0 .1 0 .1 .2 50 ----- ----- Basin wide percent of average 138 100 BELLE FOURCHE BLIND PARK 6890 .0 .0 100 .7 .2 350 COLE CANYON 5910 .1 .0 .4 .1 400 NORTH RAPID CREEK 6130 .1 .0 .4 .2 200 ----- ----- Basin wide percent of average * 300 UPPER N. PLATTE RIVER COLUMBINE 9160 .0 .0 100 .6 .1 600 DIVIDE PEAK 8880 .4 .2 200 .6 .1 600 ELK RIVER 8700 .0 .0 100 .3 .1 300 JOE WRIGHT 10120 .0 .2 0 .3 .2 150 NORTH FRENCH CREEK 10130 .9 .3 300 .7 .2 350 OLD BATTLE 10000 1.2 .3 400 .6 .2 300 SAGE CREEK BASIN 7850 .0 .0 100 .3 .1 300 SOUTH BRUSH CREEK 8440 .1 .0 .8 .1 800 TOWER 10500 1.2 .2 600 .6 .2 300 WEBBER SPRINGS 9250 .2 .1 200 .4 .2 200 WILLOW CREEK PASS 9540 .0 .0 100 .3 .1 300 ----- ----- Basin wide percent of average 300 344 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .1 .3 33 .3 .1 300 CASPER MTN. 7900 .0 .0 100 .4 .1 400 DEADMAN HILL 10220 .0 .3 0 .2 .2 100 DEER PARK 9700 .0 .3 0 .1 .1 100 LAPRELE CREEK 8375 .0 .1 0 .2 .1 200 RENO HILL 8400 .3 .1 300 .5 .1 500 ROACH 9700 .1 .1 100 .2 .1 200 SAND LAKE 10050 .8 .5 160 .6 .2 300 SOUTH PASS 9040 .0 .2 0 .0 .1 0 WINDY PEAK 7900 .0 .0 100 .3 .1 300 ----- ----- Basin wide percent of average 68 233 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .1 .0 .5 .1 500 DIVIDE PEAK 8880 .4 .2 200 .6 .1 600 OLD BATTLE 10000 1.2 .3 400 .6 .2 300 SANDSTONE RS 8150 -M .0 * .3 .1 300 WHISKEY PARK 8950 .5 .1 500 .5 .2 250 ----- ----- Basin wide percent of average 350 357 UPPER GREEN RIVER BIG SANDY OPENING 9080 .2 .0 .0 .1 0 BLIND BULL SUM 8650 .1 .0 .1 .1 100 EAST RIM DIVIDE 7930 .0 .0 100 .0 .1 0 ELKHART PARK G.S. 9400 .5 .0 .2 .1 200 GROS VENTRE SUMMIT 8750 .1 .0 .1 .1 100 GUNSIGHT PASS 9820 .0 -M * .2 -M * KENDALL R.S. 7740 .1 .0 .0 .1 0 LOOMIS PARK 8240 .1 .0 .0 .1 0 NEW FORK LAKE 8340 .0 .0 100 .4 .1 400 SNIDER BASIN 8060 .2 .0 .2 .1 200 SPRING CREEK DIVIDE 9000 .3 .0 .3 .1 300 TRIPLE PEAK 8500 .1 .0 .1 .1 100 ----- ----- Basin wide percent of average * 127 LOWER GREEN RIVER HAMS FORK 7840 .2 .0 .0 .1 0 HEWINTA 9519 .1 .1 100 .1 .1 100 HICKERSON PARK 9145 .1 .0 .1 .1 100 HOLE-IN-ROCK 9150 .0 .0 100 .0 .1 0 INDIAN CREEK 9425 .1 .0 .4 .1 400 KELLEY R.S. 8180 .3 .0 .3 .1 300 STEEL CREEK PARK 10200 .0 .3 0 .1 .1 100 ----- ----- Basin wide percent of average 25* 143 UPPER BEAR RIVER BUG LAKE 7950 .2 .2 100 .1 .1 100 HAYDEN FORK 9212 -M .1 * -M .1 * KELLEY R.S. 8180 .3 .0 .3 .1 300 LILY LAKE 9156 .2 .2 100 .0 .1 0 MONTE CRISTO 8960 .2 .3 67 .2 .2 100 SALT RIVER SUMMIT 7760 .3 .0 .2 .1 200 TRIAL LAKE 9992 .5 .4 125 .2 .2 100 ----- ----- Basin wide percent of average 100 125 ----------------------------------------------------------------------------- -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.