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 7 , 2007 ----------------------------------------------------------------------------- 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 * 1.5 .4 375 COTTONWOOD CREEK 7600 .4 .0 * 1.4 .6 233 GRANITE CREEK 6770 .1 .0 * 1.2 .3 400 GRASSY LAKE 7265 .3 .1 300* 1.4 .7 200 GROS VENTRE SUMMIT 8750 .7 .3 233* 1.6 .4 400 LEWIS LAKE DIVIDE 7850 .4 .0 * -M .6 * PHILLIPS BENCH 8200 .0 .1 0* 1.2 .5 240 SALT RIVER SUMMIT 7600 .4 .0 * .9 .4 225 SNAKE RIVER STATION 6920 .2 .0 * 1.6 .4 400 SPRING CREEK DIVIDE 9000 .3 .1 300* .7 .5 140 THUMB DIVIDE 7980 .9 .0 * 1.8 .4 450 TOGWOTEE PASS 9580 1.5 .4 375* 2.2 .6 367 TWO OCEAN PLATEAU 9240 2.3 .5 460* 2.4 .6 400 WILLOW CREEK 8450 .9 .2 450* 1.7 .7 243 ----- ----- Basin wide percent of average 353* 302 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 1.7 .8 212* 1.4 .4 350 BLACK BEAR 8170 1.1 .5 220* 2.0 .7 286 CANYON 8090 1.0 .1 1000* 1.8 .4 450 FISHER CREEK 9100 2.9 .6 483* 2.8 .7 400 MADISON PLATEAU 7750 1.2 .3 400* 2.0 .5 400 NORTHEAST ENTRANCE 7350 .2 .0 * 1.5 .3 500 PARKER PEAK 9400 1.8 .8 225* .0 .5 0 SYLVAN LAKE 8420 .9 .6 150* 1.9 .5 380 THUMB DIVIDE 7980 .9 .0 * 1.8 .4 450 TWO OCEAN PLATEAU 9240 2.3 .5 460* 2.4 .6 400 WHISKEY CREEK 6800 .9 .1 900* 1.9 .4 475 WHITE MILL 8700 2.0 .4 500* 1.9 .5 380 WOLVERINE 7650 .2 .0 * 1.3 .4 325 ----- ----- Basin wide percent of average 336* 360 WIND RIVER BURROUGHS CREEK 8750 .2 .2 100* 1.3 .3 433 COLD SPRINGS 9630 .5 .2 250* 1.4 .4 350 DEER PARK 9700 .9 .5 180* 1.9 .5 380 HOBBS PARK 10100 .7 .5 140* 1.9 .4 475 LITTLE WARM 9370 .1 .3 33* 1.1 .3 367 SOUTH PASS 9040 .3 .2 150* 1.2 .4 300 ST. LAWRENCE ALT 8620 .4 .1 400* .9 .3 300 TOGWOTEE PASS 9580 1.5 .4 375* 2.2 .6 367 TOWNSEND CREEK 8700 .6 .1 600* 1.5 .4 375 ----- ----- Basin wide percent of average 208* 372 BIGHORN BASIN BALD MTN. 9380 .4 1.0 40* .8 .5 160 BEAR TRAP MEADOW 8200 .1 .1 100* .5 .3 167 BLACKWATER 9780 1.8 1.0 180* 1.9 .5 380 BONE SPRINGS DIV 9350 -M .8 * -M .5 * EVENING STAR 9200 1.8 .7 257* 1.2 .6 200 GRAVE SPRINGS 8550 .4 .1 400* 1.0 .4 250 KIRWIN 9550 1.8 .6 300* -M .4 * MARQUETTE 8760 .7 .6 117* 1.1 .5 220 MIDDLE POWDER 7760 .3 .4 75* .8 .5 160 OWL CREEK 8975 .7 .2 350* 1.4 .2 700 POWDER RIVER PASS 9480 .1 .4 25* 1.1 .4 275 SHELL CREEK 9580 1.0 1.1 91* 1.7 .4 425 SYLVAN LAKE 8420 .9 .6 150* 1.9 .5 380 SYLVAN ROAD 7120 .5 .0 * 1.9 .4 475 TIMBER CREEK 7950 1.0 .0 * 1.9 .3 633 YOUNTS PEAK 8350 .9 .3 300* 1.8 .4 450 ----- ----- Basin wide percent of average 154* 322 SHOSHONE RIVER BLACKWATER 9780 1.8 1.0 180* 1.9 .5 380 EVENING STAR 9200 1.8 .7 257* 1.2 .6 200 KIRWIN 9550 1.8 .6 300* -M .4 * MARQUETTE 8760 .7 .6 117* 1.1 .5 220 SYLVAN LAKE 8420 .9 .6 150* 1.9 .5 380 SYLVAN ROAD 7120 .5 .0 * 1.9 .4 475 YOUNTS PEAK 8350 .9 .3 300* 1.8 .4 450 ----- ----- Basin wide percent of average 208* 338 POWDER-TONGUE BEAR TRAP MEADOW 8200 .1 .1 100* .5 .3 167 BIG GOOSE 7990 .4 .1 400* .7 .4 175 BONE SPRINGS DIV 9350 -M .8 * -M .5 * BURGESS JUNCTION 7880 .1 .4 25* .7 .4 175 CLOUD PEAK RESERVOIR 9860 .3 .2 150* 1.2 .5 240 DOME LAKE 8880 .1 .5 20* 1.2 .5 240 GRAVE SPRINGS 8550 .4 .1 400* 1.0 .4 250 HANSEN SAWMILL 8360 .3 .1 300* .8 .4 200 MIDDLE POWDER 7760 .3 .4 75* .8 .5 160 POWDER RIVER PASS 9480 .1 .4 25* 1.1 .4 275 SUCKER CREEK 8880 .3 .3 100* .5 .5 100 TIE CREEK 6870 .1 .0 * .6 .5 120 ----- ----- Basin wide percent of average 92* 190 BELLE FOURCHE BLIND PARK 6890 .2 .0 * .4 .5 80 COLE CANYON 5910 .0 .0 100* .1 -M * NORTH RAPID CREEK 6130 .0 .0 100* .4 .5 80 ----- ----- Basin wide percent of average * 80 UPPER N. PLATTE RIVER COLUMBINE 9160 .0 .0 100* 1.1 .5 220 DIVIDE PEAK 8860 -M .4 * -M .5 * ELK RIVER 8700 .0 .0 100* 1.0 .4 250 JOE WRIGHT 10120 .2 .4 50* 1.5 .7 214 NORTH FRENCH CREEK 10130 .5 .7 71* 1.2 .7 171 OLD BATTLE 9920 .7 .6 117* 1.3 .7 186 SAGE CREEK BASIN 7850 .2 .1 200* .8 .3 267 SOUTH BRUSH CREEK 8440 .4 .1 400* .9 .5 180 TOWER 10500 .2 .5 40* 1.6 .8 200 WEBBER SPRINGS 9250 .2 .3 67* 1.2 .6 200 WILLOW CREEK PASS 9540 .2 .1 200* .5 .4 125 ----- ----- Basin wide percent of average 93* 198 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 .0 .5 0* .7 .5 140 CASPER MTN. 7850 .4 .3 133* .7 .5 140 DEADMAN HILL 10220 .1 .5 20* .5 .5 100 DEER PARK 9700 .9 .5 180* 1.9 .5 380 LAPRELE CREEK 8375 .1 .1 100* .6 .4 150 RENO HILL 8500 .5 .3 167* .7 .5 140 ROACH 9700 .1 .1 100* .8 .5 160 SAND LAKE 10050 .5 .8 62* 1.0 .6 167 SOUTH PASS 9040 .3 .2 150* 1.2 .4 300 WINDY PEAK 7900 .1 .0 * .3 .3 100 ----- ----- Basin wide percent of average 88* 179 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100* .8 .4 200 DIVIDE PEAK 8860 -M .4 * -M .5 * OLD BATTLE 9920 .7 .6 117* 1.3 .7 186 SANDSTONE RS 8150 .0 .0 100* .7 .5 140 WHISKEY PARK 8950 .2 .2 100* 1.2 .6 200 ----- ----- Basin wide percent of average 112* 182 UPPER GREEN RIVER BIG SANDY OPENING 9080 .1 .2 50* 1.0 .4 250 BLIND BULL SUM 8900 .4 .2 200* .8 .4 200 EAST RIM DIVIDE 7930 .0 .0 100* .9 .3 300 ELKHART PARK G.S. 9400 .2 .1 200* 1.0 .4 250 GROS VENTRE SUMMIT 8750 .7 .3 233* 1.6 .4 400 KENDALL R.S. 7740 .1 .0 * 1.0 .3 333 LOOMIS PARK 8240 .0 .1 0* .9 .4 225 NEW FORK LAKE 8340 .2 .0 * 1.0 .3 333 SNIDER BASIN 8060 .3 .0 * .4 .3 133 SPRING CREEK DIVIDE 9000 .3 .1 300* .7 .5 140 TRIPLE PEAK 8500 .2 .1 200* .8 .4 200 ----- ----- Basin wide percent of average 173* 246 LOWER GREEN RIVER HAMS FORK 7840 .1 .0 * .6 .3 200 HEWINTA 9500 .0 .2 0* 2.5 .5 500 HICKERSON PARK 9100 .1 .0 * 2.2 .3 733 HOLE-IN-ROCK 9150 .0 .0 100* 2.2 .3 733 INDIAN CREEK 9425 .6 .2 300* .8 .5 160 KELLEY R.S. 8180 .7 .1 700* 1.3 .4 325 STEEL CREEK PARK 10100 -M .5 * -M .5 * ----- ----- Basin wide percent of average 260* 417 UPPER BEAR RIVER BUG LAKE 7950 .2 .3 67* .2 .5 40 HAYDEN FORK 9100 .3 .2 150* 1.4 .5 280 KELLEY R.S. 8180 .7 .1 700* 1.3 .4 325 LILY LAKE 9050 -M .2 * -M .5 * MONTE CRISTO 8960 .7 .4 175* 1.3 .6 217 SALT RIVER SUMMIT 7600 .4 .0 * .9 .4 225 TRIAL LAKE 9960 .4 .5 80* .8 .6 133 ----- ----- Basin wide percent of average 153* 197 ----------------------------------------------------------------------------- -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.