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 MONDAY: OCTOBER 10 , 2011 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .1 .0 * 1.7 .5 340 COTTONWOOD CREEK 7670 .5 .0 * 2.3 .8 288 GRAND TARGHEE 9260 1.5 -M * 2.4 -M * GRANITE CREEK 6770 .1 .0 * 1.1 .5 220 GRASSY LAKE 7265 .8 .0 * 2.3 .9 256 GROS VENTRE SUMMIT 8750 .2 .3 67* 1.2 .6 200 GUNSIGHT PASS 9820 .5 -M * 1.2 -M * LEWIS LAKE DIVIDE 7850 .2 .0 * 1.3 .7 186 PHILLIPS BENCH 8200 .0 .0 100* .8 .6 133 SALT RIVER SUMMIT 7760 -M .0 * -M .5 * SNAKE RIVER STATION 6920 .1 .0 * 1.5 .6 250 SPRING CREEK DIVIDE 9000 1.0 .1 1000* 2.0 .6 333 THUMB DIVIDE 7980 .0 .0 100* .8 .6 133 TOGWOTEE PASS 9580 .8 .6 133* 1.6 .8 200 TWO OCEAN PLATEAU 9240 1.6 .8 200* 1.7 .8 213 WILLOW CREEK 8380 1.0 .2 500* 2.4 1.0 240 ----- ----- Basin wide percent of average 320* 230 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 .5 1.0 50* .9 .6 150 BLACK BEAR 8170 1.2 .6 200* 2.5 .8 313 CANYON 7870 .0 .1 0* .6 .5 120 FISHER CREEK 9100 .5 .7 71* 1.4 .8 175 MADISON PLATEAU 7750 .3 .4 75* 2.2 .7 314 NORTHEAST ENTRANCE 7350 .1 .1 100* .5 .5 100 PARKER PEAK 9400 .6 .9 67* 1.0 .7 143 SYLVAN LAKE 8420 .5 .6 83* 1.6 .7 229 THUMB DIVIDE 7980 .0 .0 100* .8 .6 133 TWO OCEAN PLATEAU 9240 1.6 .8 200* 1.7 .8 213 WHISKEY CREEK 6800 .0 .1 0* 1.8 .5 360 WHITE MILL 8700 .5 .5 100* 1.0 .7 143 WOLVERINE 7650 .0 .1 0* .5 .6 83 ----- ----- Basin wide percent of average 98* 194 WIND RIVER BURROUGHS CREEK 8750 .1 .2 50* .8 .5 160 CASTLE CREEK 8400 .1 -M * .7 -M * COLD SPRINGS 9630 .6 .2 300* 1.1 .5 220 DEER PARK 9700 .9 .7 129* 1.9 .6 317 HOBBS PARK 10100 1.9 .6 317* 1.9 .6 317 LITTLE WARM 9370 .2 .2 100* .7 .5 140 SOUTH PASS 9040 1.2 .4 300* 1.8 .5 360 ST. LAWRENCE ALT 8620 .1 .2 50* .8 .5 160 TOGWOTEE PASS 9580 .8 .6 133* 1.6 .8 200 TOWNSEND CREEK 8700 1.1 .2 550* 1.9 .6 317 ----- ----- Basin wide percent of average 209* 245 BIGHORN BASIN BALD MTN. 9380 2.3 1.2 192* 2.3 .8 288 BEAR TRAP MEADOW 8200 -M .1 * .9 .5 180 BLACKWATER 9780 .8 1.2 67* 1.0 .8 125 BONE SPRINGS DIV 9350 2.6 1.0 260* 2.7 .8 338 EVENING STAR 9200 .4 1.0 40* 1.0 .7 143 GRAVE SPRINGS 8550 .9 .4 225* 1.4 .7 200 KIRWIN 9550 1.3 .7 186* 1.8 .5 360 MARQUETTE 8760 .6 -M * 2.0 .7 286 MIDDLE POWDER 7760 1.9 .5 380* 2.9 .8 363 OWL CREEK 8975 1.2 .4 300* 1.1 .4 275 POWDER RIVER PASS 9480 1.5 .4 375* 1.9 .6 317 SHELL CREEK 9580 2.8 1.3 215* 2.7 .6 450 SYLVAN LAKE 8420 .5 .6 83* 1.6 .7 229 SYLVAN ROAD 7120 .2 .0 * .0 .5 0 TIMBER CREEK 7950 .2 .2 100* 2.7 .5 540 YOUNTS PEAK 8350 .2 .4 50* 1.1 .6 183 ----- ----- Basin wide percent of average 181* 266 SHOSHONE RIVER BLACKWATER 9780 .8 1.2 67* 1.0 .8 125 EVENING STAR 9200 .4 1.0 40* 1.0 .7 143 KIRWIN 9550 1.3 .7 186* 1.8 .5 360 MARQUETTE 8760 .6 -M * 2.0 .7 286 SYLVAN LAKE 8420 .5 .6 83* 1.6 .7 229 SYLVAN ROAD 7120 .2 .0 * .0 .5 0 YOUNTS PEAK 8350 .2 .4 50* 1.1 .6 183 ----- ----- Basin wide percent of average 87* 189 POWDER-TONGUE BEAR TRAP MEADOW 8200 -M .1 * .9 .5 180 BIG GOOSE 7990 1.7 .2 850* 3.0 .7 429 BONE SPRINGS DIV 9350 2.6 1.0 260* 2.7 .8 338 BURGESS JUNCTION 7880 1.6 .5 320* 3.1 .7 443 CLOUD PEAK RESERVOIR 9860 1.8 .4 450* 2.4 .8 300 DOME LAKE 8880 2.1 .6 350* 3.1 .8 388 GRAVE SPRINGS 8550 .9 .4 225* 1.4 .7 200 HANSEN SAWMILL 8360 .0 .1 0* 1.2 .5 240 LITTLE GOOSE 8870 2.1 -M * 3.3 -M * MIDDLE POWDER 7760 1.9 .5 380* 2.9 .8 363 POWDER RIVER PASS 9480 1.5 .4 375* 1.9 .6 317 SOLDIER PARK 8720 .8 -M * 1.9 -M * SUCKER CREEK 8880 2.5 .5 500* 3.0 .7 429 TIE CREEK 6870 .0 .0 100* 3.7 .8 463 ----- ----- Basin wide percent of average 361* 349 BELLE FOURCHE BLIND PARK 6890 .0 .2 0* .6 .7 86 COLE CANYON 5910 .0 .2 0* 1.2 .6 200 NORTH RAPID CREEK 6130 .2 .1 200* .4 .8 50 ----- ----- Basin wide percent of average 40* 105 UPPER N. PLATTE RIVER BLACKHALL MTN 9820 1.2 -M * 1.8 -M * CINNABAR PARK 9574 .6 .1 600* 1.2 .6 200 COLUMBINE 9160 .0 .0 100* .7 .6 117 DIVIDE PEAK 8880 .8 .5 160* 1.4 .7 200 ELK RIVER 8700 .0 .1 0* 1.2 .6 200 JOE WRIGHT 10120 .0 .5 0* 1.0 1.0 100 NORTH FRENCH CREEK 10130 .5 .9 56* 1.1 .8 138 OLD BATTLE 10000 .9 .8 113* 1.3 .9 144 SAGE CREEK BASIN 7850 .1 .1 100* .9 .4 225 SOUTH BRUSH CREEK 8440 .3 .1 300* 1.1 .7 157 TOWER 10500 .2 .6 33* 1.2 .9 133 WEBBER SPRINGS 9250 .8 .3 267* 1.5 .8 188 WILLOW CREEK PASS 9540 .3 .2 150* .7 .5 140 ----- ----- Basin wide percent of average 107* 156 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .6 .6 100* 1.3 .6 217 CASPER MTN. 7900 2.9 .4 725* -M .6 * DEADMAN HILL 10220 .3 .6 50* 1.3 .7 186 DEER PARK 9700 .9 .7 129* 1.9 .6 317 LAPRELE CREEK 8375 .8 .2 400* 1.7 .5 340 RENO HILL 8400 2.0 .5 400* 2.3 .6 383 ROACH 9700 1.2 .2 600* 1.6 .6 267 SAND LAKE 10050 1.3 .9 144* 1.6 .8 200 SOUTH PASS 9040 1.2 .4 300* 1.8 .5 360 WINDY PEAK 7900 .6 .0 * 1.1 .5 220 ----- ----- Basin wide percent of average 262* 270 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .1 .0 * .6 .4 150 DIVIDE PEAK 8880 .8 .5 160* 1.4 .7 200 OLD BATTLE 10000 .9 .8 113* 1.3 .9 144 SANDSTONE RS 8150 .0 .0 100* .5 .6 83 WHISKEY PARK 8950 .3 .3 100* 1.1 .8 138 ----- ----- Basin wide percent of average 131* 144 UPPER GREEN RIVER BIG SANDY OPENING 9080 .9 .2 450* 1.4 .5 280 BLIND BULL SUM 8650 .8 .2 400* .9 .5 180 EAST RIM DIVIDE 7930 .3 .0 * 1.2 .4 300 ELKHART PARK G.S. 9400 .7 .1 700* 1.7 .6 283 GROS VENTRE SUMMIT 8750 .2 .3 67* 1.2 .6 200 GUNSIGHT PASS 9820 .5 -M * 1.2 -M * KENDALL R.S. 7740 .0 .0 100* 1.4 .4 350 LOOMIS PARK 8240 .1 .1 100* 1.2 .5 240 NEW FORK LAKE 8340 .6 .0 * 1.6 .4 400 POCKET CREEK 9360 1.4 -M * 2.0 -M * SNIDER BASIN 8060 .1 .0 * 1.1 .4 275 SPRING CREEK DIVIDE 9000 1.0 .1 1000* 2.0 .6 333 TRIPLE PEAK 8500 .1 .1 100* 1.4 .6 233 ----- ----- Basin wide percent of average 436* 275 LOWER GREEN RIVER HAMS FORK 7840 .1 .0 * 1.5 .4 375 HEWINTA 9519 .2 .2 100* 2.2 .7 314 HICKERSON PARK 9145 -M .0 * -M .5 * HOLE-IN-ROCK 9150 1.3 .0 * 2.5 .5 500 INDIAN CREEK 9425 1.2 .2 600* 1.6 .6 267 KELLEY R.S. 8180 .9 .0 * 1.8 .5 360 STEEL CREEK PARK 10200 -M .6 * -M .6 * ----- ----- Basin wide percent of average 925* 356 UPPER BEAR RIVER BUG LAKE 7950 -M .4 * -M .6 * HAYDEN FORK 9212 -M .3 * -M .6 * KELLEY R.S. 8180 .9 .0 * 1.8 .5 360 LILY LAKE 9156 .7 .3 233* 2.3 .6 383 MONTE CRISTO 8960 -M .5 * -M .8 * SALT RIVER SUMMIT 7760 -M .0 * -M .5 * TRIAL LAKE 9992 1.0 .6 167* 1.8 .7 257 ----- ----- Basin wide percent of average 289* 328* ----------------------------------------------------------------------------- -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.