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 8 , 2007 ----------------------------------------------------------------------------- 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 * 1.7 .5 340 COTTONWOOD CREEK 7600 .4 .0 * 1.7 .7 243 GRANITE CREEK 6770 .1 .0 * 1.3 .4 325 GRASSY LAKE 7265 .5 .2 250* 1.6 .8 200 GROS VENTRE SUMMIT 8750 .8 .3 267* 1.7 .4 425 LEWIS LAKE DIVIDE 7850 .4 .0 * -M .7 * PHILLIPS BENCH 8200 .1 .1 100* 1.3 .6 217 SALT RIVER SUMMIT 7600 .3 .0 * 1.1 .5 220 SNAKE RIVER STATION 6920 .2 .0 * 1.7 .5 340 SPRING CREEK DIVIDE 9000 .4 .2 200* .8 .6 133 THUMB DIVIDE 7980 .9 .0 * 1.9 .5 380 TOGWOTEE PASS 9580 1.6 .5 320* 2.4 .7 343 TWO OCEAN PLATEAU 9240 2.5 .6 417* 2.7 .7 386 WILLOW CREEK 8450 .9 .2 450* 1.9 .9 211 ----- ----- Basin wide percent of average 324* 279 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 2.0 .8 250* 1.8 .5 360 BLACK BEAR 8170 1.3 .6 217* 2.2 .8 275 CANYON 8090 1.1 .2 550* 1.9 .4 475 FISHER CREEK 9100 3.0 .6 500* -M .8 * MADISON PLATEAU 7750 1.2 .3 400* 2.1 .6 350 NORTHEAST ENTRANCE 7350 -M .0 * -M .4 * PARKER PEAK 9400 2.0 .8 250* .0 .5 0 SYLVAN LAKE 8420 1.1 .6 183* 2.2 .6 367 THUMB DIVIDE 7980 .9 .0 * 1.9 .5 380 TWO OCEAN PLATEAU 9240 2.5 .6 417* 2.7 .7 386 WHISKEY CREEK 6800 .9 .1 900* 2.1 .5 420 WHITE MILL 8700 2.1 .4 525* 1.6 .6 267 WOLVERINE 7650 .2 .0 * 1.5 .4 375 ----- ----- Basin wide percent of average 344* 328 WIND RIVER BURROUGHS CREEK 8750 .2 .2 100* 1.4 .4 350 COLD SPRINGS 9630 .5 .2 250* 1.4 .5 280 DEER PARK 9700 .9 .6 150* 2.0 .6 333 HOBBS PARK 10100 .8 .5 160* 2.1 .5 420 LITTLE WARM 9370 .2 .3 67* 1.2 .4 300 SOUTH PASS 9040 .3 .2 150* 1.3 .5 260 ST. LAWRENCE ALT 8620 .3 .1 300* 1.0 .4 250 TOGWOTEE PASS 9580 1.6 .5 320* 2.4 .7 343 TOWNSEND CREEK 8700 .5 .2 250* 1.5 .5 300 ----- ----- Basin wide percent of average 189* 318 BIGHORN BASIN BALD MTN. 9380 1.3 1.1 118* 1.9 .6 317 BEAR TRAP MEADOW 8200 .1 .2 50* .6 .4 150 BLACKWATER 9780 1.9 1.1 173* 2.1 .6 350 BONE SPRINGS DIV 9350 -M .9 * -M .6 * EVENING STAR 9200 2.0 .8 250* 1.4 .7 200 GRAVE SPRINGS 8550 .4 .2 200* 1.1 .5 220 KIRWIN 9550 1.9 .6 317* -M .4 * MARQUETTE 8760 .9 .6 150* 1.4 .5 280 MIDDLE POWDER 7760 .2 .4 50* .8 .6 133 OWL CREEK 8975 .7 .2 350* 1.5 .3 500 POWDER RIVER PASS 9480 .4 .4 100* 1.4 .5 280 SHELL CREEK 9580 1.5 1.1 136* 2.2 .5 440 SYLVAN LAKE 8420 1.1 .6 183* 2.2 .6 367 SYLVAN ROAD 7120 .5 .0 * 2.0 .5 400 TIMBER CREEK 7950 1.1 .0 * 2.0 .4 500 YOUNTS PEAK 8350 .9 .4 225* 1.9 .4 475 ----- ----- Basin wide percent of average 173* 317 SHOSHONE RIVER BLACKWATER 9780 1.9 1.1 173* 2.1 .6 350 EVENING STAR 9200 2.0 .8 250* 1.4 .7 200 KIRWIN 9550 1.9 .6 317* -M .4 * MARQUETTE 8760 .9 .6 150* 1.4 .5 280 SYLVAN LAKE 8420 1.1 .6 183* 2.2 .6 367 SYLVAN ROAD 7120 .5 .0 * 2.0 .5 400 YOUNTS PEAK 8350 .9 .4 225* 1.9 .4 475 ----- ----- Basin wide percent of average 212* 333 POWDER-TONGUE BEAR TRAP MEADOW 8200 .1 .2 50* .6 .4 150 BIG GOOSE 7990 .5 .2 250* 1.1 .5 220 BONE SPRINGS DIV 9350 -M .9 * -M .6 * BURGESS JUNCTION 7880 .3 .4 75* 1.0 .5 200 CLOUD PEAK RESERVOIR 9860 .4 .2 200* 1.5 .6 250 DOME LAKE 8880 .4 .5 80* 1.6 .6 267 GRAVE SPRINGS 8550 .4 .2 200* 1.1 .5 220 HANSEN SAWMILL 8360 .4 .2 200* 1.0 .4 250 MIDDLE POWDER 7760 .2 .4 50* .8 .6 133 POWDER RIVER PASS 9480 .4 .4 100* 1.4 .5 280 SUCKER CREEK 8880 .5 .4 125* .9 .6 150 TIE CREEK 6870 .3 .0 * 1.0 .6 167 ----- ----- Basin wide percent of average 116* 207 BELLE FOURCHE BLIND PARK 6890 .0 .0 100* .6 .6 100 COLE CANYON 5910 .0 .0 100* .4 -M * NORTH RAPID CREEK 6130 .0 .0 100* .5 .6 83 ----- ----- Basin wide percent of average * 92 UPPER N. PLATTE RIVER COLUMBINE 9160 .0 .0 100* 1.3 .6 217 DIVIDE PEAK 8860 -M .4 * -M .6 * ELK RIVER 8700 .0 .0 100* 1.2 .5 240 JOE WRIGHT 10120 .0 .5 0* 1.5 .8 188 NORTH FRENCH CREEK 10130 .5 .7 71* 1.3 .8 162 OLD BATTLE 9920 .8 .7 114* 1.7 .8 212 SAGE CREEK BASIN 7850 .0 .2 0* 1.0 .4 250 SOUTH BRUSH CREEK 8440 .2 .1 200* 1.0 .6 167 TOWER 10500 .3 .6 50* 1.7 .9 189 WEBBER SPRINGS 9250 .1 .3 33* 1.3 .7 186 WILLOW CREEK PASS 9540 .0 .2 0* .6 .5 120 ----- ----- Basin wide percent of average 58* 191 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 .0 .6 0* .7 .6 117 CASPER MTN. 7850 .2 .3 67* .9 .6 150 DEADMAN HILL 10220 1.7 .6 283* .5 .6 83 DEER PARK 9700 .9 .6 150* 2.0 .6 333 LAPRELE CREEK 8375 .0 .2 0* .6 .5 120 RENO HILL 8500 .4 .4 100* .9 .6 150 ROACH 9700 .1 .2 50* .9 .5 180 SAND LAKE 10050 .5 .8 62* 1.0 .7 143 SOUTH PASS 9040 .3 .2 150* 1.3 .5 260 WINDY PEAK 7900 .0 .0 100* .3 .4 75 ----- ----- Basin wide percent of average 105* 162 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100* .8 .5 160 DIVIDE PEAK 8860 -M .4 * -M .6 * OLD BATTLE 9920 .8 .7 114* 1.7 .8 212 SANDSTONE RS 8150 .0 .0 100* .8 .5 160 WHISKEY PARK 8950 .1 .2 50* 1.3 .7 186 ----- ----- Basin wide percent of average 100* 184 UPPER GREEN RIVER BIG SANDY OPENING 9080 .2 .2 100* 1.1 .4 275 BLIND BULL SUM 8900 .5 .2 250* .9 .5 180 EAST RIM DIVIDE 7930 .0 .0 100* 1.0 .3 333 ELKHART PARK G.S. 9400 .3 .1 300* 1.0 .5 200 GROS VENTRE SUMMIT 8750 .8 .3 267* 1.7 .4 425 KENDALL R.S. 7740 .1 .0 * 1.1 .4 275 LOOMIS PARK 8240 .1 .1 100* 1.1 .4 275 NEW FORK LAKE 8340 .2 .0 * 1.1 .4 275 SNIDER BASIN 8060 .3 .0 * .5 .4 125 SPRING CREEK DIVIDE 9000 .4 .2 200* .8 .6 133 TRIPLE PEAK 8500 .2 .1 200* 1.0 .5 200 ----- ----- Basin wide percent of average 208* 235 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100* .7 .3 233 HEWINTA 9500 -M .2 * 2.7 .6 450 HICKERSON PARK 9100 .1 .0 * 2.3 .4 575 HOLE-IN-ROCK 9150 .0 .0 100* 2.2 .4 550 INDIAN CREEK 9425 .9 .2 450* 1.0 .6 167 KELLEY R.S. 8180 .7 .1 700* 1.4 .5 280 STEEL CREEK PARK 10100 2.2 .6 367* -M .5 * ----- ----- Basin wide percent of average 422* 368 UPPER BEAR RIVER BUG LAKE 7950 .1 .4 25* .3 .5 60 HAYDEN FORK 9100 .2 .2 100* 1.4 .6 233 KELLEY R.S. 8180 .7 .1 700* 1.4 .5 280 LILY LAKE 9050 -M .2 * -M .6 * MONTE CRISTO 8960 .8 .4 200* 1.5 .7 214 SALT RIVER SUMMIT 7600 .3 .0 * 1.1 .5 220 TRIAL LAKE 9960 .3 .6 50* .9 .7 129 ----- ----- Basin wide percent of average 124* 189 ----------------------------------------------------------------------------- -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.