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 8 , 2011 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .6 .0 * 1.7 .4 425 COTTONWOOD CREEK 7670 .9 .0 * 2.2 .6 367 GRAND TARGHEE 9260 1.6 -M * 2.1 -M * GRANITE CREEK 6770 .1 .0 * 1.1 .4 275 GRASSY LAKE 7265 1.2 .0 * 2.3 .7 329 GROS VENTRE SUMMIT 8750 .3 .3 100* 1.1 .4 275 GUNSIGHT PASS 9820 .6 -M * 1.1 -M * LEWIS LAKE DIVIDE 7850 .7 .0 * 1.3 .6 217 PHILLIPS BENCH 8200 .1 .0 * .8 .5 160 SALT RIVER SUMMIT 7760 -M .0 * -M .4 * SNAKE RIVER STATION 6920 .4 .0 * 1.5 .5 300 SPRING CREEK DIVIDE 9000 1.1 .0 * 1.9 .5 380 THUMB DIVIDE 7980 .2 .0 * .8 .4 200 TOGWOTEE PASS 9580 .9 .5 180* 1.6 .6 267 TWO OCEAN PLATEAU 9240 1.5 .6 250* 1.5 .6 250 WILLOW CREEK 8380 1.3 .1 1300* 2.4 .8 300 ----- ----- Basin wide percent of average 620* 289 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 .5 .9 56* .9 .4 225 BLACK BEAR 8170 1.4 .5 280* 2.6 .6 433 CANYON 7870 .0 .1 0* .6 .4 150 FISHER CREEK 9100 .5 .6 83* 1.2 .6 200 MADISON PLATEAU 7750 .5 .4 125* 2.3 .5 460 NORTHEAST ENTRANCE 7350 .3 .0 * .4 .4 100 PARKER PEAK 9400 .7 .9 78* .9 .6 150 SYLVAN LAKE 8420 .7 .6 117* 1.5 .6 250 THUMB DIVIDE 7980 .2 .0 * .8 .4 200 TWO OCEAN PLATEAU 9240 1.5 .6 250* 1.5 .6 250 WHISKEY CREEK 6800 .0 .1 0* 1.8 .4 450 WHITE MILL 8700 .5 .4 125* .9 .6 150 WOLVERINE 7650 .0 .1 0* .3 .4 75 ----- ----- Basin wide percent of average 131* 242 WIND RIVER BURROUGHS CREEK 8750 .1 .2 50* .6 .4 150 CASTLE CREEK 8400 .3 -M * .8 -M * COLD SPRINGS 9630 .6 .2 300* .9 .4 225 DEER PARK 9700 .1 .7 14* .9 .5 180 HOBBS PARK 10100 1.1 .6 183* 1.1 .5 220 LITTLE WARM 9370 .3 .2 150* .7 .4 175 SOUTH PASS 9040 .6 .4 150* .9 .4 225 ST. LAWRENCE ALT 8620 .0 .2 0* .5 .4 125 TOGWOTEE PASS 9580 .9 .5 180* 1.6 .6 267 TOWNSEND CREEK 8700 .2 .2 100* .6 .5 120 ----- ----- Basin wide percent of average 122* 190 BIGHORN BASIN BALD MTN. 9380 -M 1.1 * -M .6 * BEAR TRAP MEADOW 8200 1.2 .1 1200* .8 .4 200 BLACKWATER 9780 .8 1.1 73* .8 .6 133 BONE SPRINGS DIV 9350 -M .9 * -M .6 * EVENING STAR 9200 .4 .9 44* .9 .6 150 GRAVE SPRINGS 8550 .9 .4 225* 1.2 .6 200 KIRWIN 9550 1.4 .6 233* 1.8 .4 450 MARQUETTE 8760 .7 -M * 1.7 .5 340 MIDDLE POWDER 7760 2.0 .4 500* 2.7 .6 450 OWL CREEK 8975 1.3 .4 325* 1.1 .3 367 POWDER RIVER PASS 9480 1.7 .4 425* 1.9 .5 380 SHELL CREEK 9580 2.7 1.1 245* -M .5 * SYLVAN LAKE 8420 .7 .6 117* 1.5 .6 250 SYLVAN ROAD 7120 .2 .0 * -M .4 * TIMBER CREEK 7950 .0 .2 0* 2.2 .4 550 YOUNTS PEAK 8350 .3 .3 100* 1.0 .5 200 ----- ----- Basin wide percent of average 209* 293 SHOSHONE RIVER BLACKWATER 9780 .8 1.1 73* .8 .6 133 EVENING STAR 9200 .4 .9 44* .9 .6 150 KIRWIN 9550 1.4 .6 233* 1.8 .4 450 MARQUETTE 8760 .7 -M * 1.7 .5 340 SYLVAN LAKE 8420 .7 .6 117* 1.5 .6 250 SYLVAN ROAD 7120 .2 .0 * -M .4 * YOUNTS PEAK 8350 .3 .3 100* 1.0 .5 200 ----- ----- Basin wide percent of average 109* 241 POWDER-TONGUE BEAR TRAP MEADOW 8200 1.2 .1 1200* .8 .4 200 BIG GOOSE 7990 2.0 .2 1000* -M .5 * BONE SPRINGS DIV 9350 -M .9 * -M .6 * BURGESS JUNCTION 7880 -M .5 * -M .5 * CLOUD PEAK RESERVOIR 9860 2.1 .3 700* -M .6 * DOME LAKE 8880 2.4 .5 480* -M .6 * GRAVE SPRINGS 8550 .9 .4 225* 1.2 .6 200 HANSEN SAWMILL 8360 .4 .1 400* 1.2 .4 300 LITTLE GOOSE 8870 2.1 -M * 3.1 -M * MIDDLE POWDER 7760 2.0 .4 500* 2.7 .6 450 POWDER RIVER PASS 9480 1.7 .4 425* 1.9 .5 380 SOLDIER PARK 8720 1.1 -M * 1.8 -M * SUCKER CREEK 8880 -M .4 * -M .6 * TIE CREEK 6870 .0 .1 0* -M .6 * ----- ----- Basin wide percent of average 508* 312* BELLE FOURCHE BLIND PARK 6890 .0 .5 0* .5 .6 83 COLE CANYON 5910 .0 .0 100* .7 .4 175 NORTH RAPID CREEK 6130 .2 .0 * .2 .6 33 ----- ----- Basin wide percent of average 40* 88 UPPER N. PLATTE RIVER BLACKHALL MTN 9820 .2 -M * .7 -M * CINNABAR PARK 9574 .3 .0 * .8 .5 160 COLUMBINE 9160 .0 .0 100* .4 .5 80 DIVIDE PEAK 8880 .1 .4 25* .6 .5 120 ELK RIVER 8700 .0 .0 100* .7 .4 175 JOE WRIGHT 10120 .0 .4 0* .3 .7 43 NORTH FRENCH CREEK 10130 .0 .7 0* .5 .6 83 OLD BATTLE 10000 .3 .6 50* .6 .6 100 SAGE CREEK BASIN 7850 .0 .0 100* .5 .3 167 SOUTH BRUSH CREEK 8440 .1 .1 100* .6 .5 120 TOWER 10500 .0 .5 0* .8 .7 114 WEBBER SPRINGS 9250 .0 .3 0* .6 .6 100 WILLOW CREEK PASS 9540 .0 .1 0* .0 .4 0 ----- ----- Basin wide percent of average 26* 102 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .0 .5 0* .7 .5 140 CASPER MTN. 7900 .4 .3 133* 1.2 .5 240 DEADMAN HILL 10220 -M .5 * .4 .5 80 DEER PARK 9700 .1 .7 14* .9 .5 180 LAPRELE CREEK 8375 .1 .1 100* .7 .4 175 RENO HILL 8400 .4 .4 100* .5 .5 100 ROACH 9700 .3 .1 300* .7 .5 140 SAND LAKE 10050 .2 .8 25* .5 .6 83 SOUTH PASS 9040 .6 .4 150* .9 .4 225 WINDY PEAK 7900 .1 .0 * .4 .4 100 ----- ----- Basin wide percent of average 67* 144 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .1 .0 * .4 .3 133 DIVIDE PEAK 8880 .1 .4 25* .6 .5 120 OLD BATTLE 10000 .3 .6 50* .6 .6 100 SANDSTONE RS 8150 .0 .0 100* .4 .4 100 WHISKEY PARK 8950 .0 .2 0* .7 .6 117 ----- ----- Basin wide percent of average 42* 113 UPPER GREEN RIVER BIG SANDY OPENING 9080 1.1 .2 550* 1.3 .4 325 BLIND BULL SUM 8650 .9 .1 900* .9 .4 225 EAST RIM DIVIDE 7930 .4 .0 * 1.2 .3 400 ELKHART PARK G.S. 9400 .4 .0 * 1.4 .5 280 GROS VENTRE SUMMIT 8750 .3 .3 100* 1.1 .4 275 GUNSIGHT PASS 9820 .6 -M * 1.1 -M * KENDALL R.S. 7740 .1 .0 * 1.3 .3 433 LOOMIS PARK 8240 .1 .1 100* 1.1 .4 275 NEW FORK LAKE 8340 .6 .0 * 1.2 .4 300 POCKET CREEK 9360 1.5 -M * 1.7 -M * SNIDER BASIN 8060 .3 .0 * 1.0 .3 333 SPRING CREEK DIVIDE 9000 1.1 .0 * 1.9 .5 380 TRIPLE PEAK 8500 .5 .0 * 1.4 .5 280 ----- ----- Basin wide percent of average 829* 314 LOWER GREEN RIVER HAMS FORK 7840 .7 .0 * 1.0 .3 333 HEWINTA 9519 .4 .2 200* 1.3 .5 260 HICKERSON PARK 9145 -M .0 * -M .4 * HOLE-IN-ROCK 9150 .9 .0 * 1.3 .4 325 INDIAN CREEK 9425 1.2 .2 600* 1.6 .5 320 KELLEY R.S. 8180 1.2 .0 * 1.8 .4 450 STEEL CREEK PARK 10200 -M .5 * -M .5 * ----- ----- Basin wide percent of average 1100* 333 UPPER BEAR RIVER BUG LAKE 7950 -M .3 * -M .5 * HAYDEN FORK 9212 -M .2 * -M .5 * KELLEY R.S. 8180 1.2 .0 * 1.8 .4 450 LILY LAKE 9156 .5 .3 167* 1.7 .5 340 MONTE CRISTO 8960 -M .4 * -M .6 * SALT RIVER SUMMIT 7760 -M .0 * -M .4 * TRIAL LAKE 9992 -M .5 * -M .6 * ----- ----- Basin wide percent of average 567* 389* ----------------------------------------------------------------------------- -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 1971-2000. 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.