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 WEDNESDAY: OCTOBER 7 , 1998 ----------------------------------------------------------------------------- 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* .4 .4 100 COTTONWOOD CREEK 7600 .0 .0 100* 1.8 .4 450 GRANITE CREEK 6770 .0 .0 100* .2 .4 50 GRASSY LAKE 7265 .0 .0 100* .0 .6 0 GROS VENTRE SUMMIT 8775 .3 .0 * .6 .3 200 LEWIS LAKE DIVIDE 7860 .0 .0 100* .1 .7 14 PHILLIPS BENCH 8200 .0 .0 100* .3 .5 60 SALT RIVER SUMMIT 7600 .1 .0 * 1.2 .3 400 SNAKE RIVER STATION 6920 .0 .0 100* .2 .4 50 SPRING CREEK DIVIDE 9000 .4 .0 * 1.2 .4 300 THUMB DIVIDE 7980 .1 .0 * .1 .4 25 TOGWOTEE PASS 9580 .6 .4 150* .8 .5 160 TWO OCEAN PLATEAU 9360 .6 .6 100* .8 .5 160 WILLOW CREEK 8450 .0 .0 100* 1.4 .5 280 ----- ----- Basin wide percent of average 120* 144 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 .0 1.0 0* .6 .4 150 BLACK BEAR 7950 .0 .7 0* .2 .7 29 CANYON 7940 .0 .1 0* .0 .3 0 FISHER CREEK 9100 .1 .6 17* .7 .6 117 MADISON PLATEAU 7750 .0 .3 0* .1 .5 20 NORTHEAST ENTRANCE 7350 .0 .0 100* .3 .3 100 PARKER PEAK 9400 .4 1.2 33* .8 .4 200 SYLVAN LAKE 8420 .0 .9 0* .8 .5 160 THUMB DIVIDE 7980 .1 .0 * .1 .4 25 TWO OCEAN PLATEAU 9360 .6 .6 100* .8 .5 160 WHISKEY CREEK 6800 .0 .1 0* .0 .4 0 WHITE MILL 8700 .0 .5 0* .4 .5 80 WOLVERINE 7650 .1 .0 * .7 .3 233 ----- ----- Basin wide percent of average 18* 95 WIND RIVER BURROUGHS CREEK 8750 .4 .2 200* .5 .3 167 COLD SPRINGS 9630 .5 .2 250* .9 .4 225 DEER PARK 9700 1.1 -M * -M -M * HOBBS PARK 10100 2.2 .5 440* 2.4 .4 600 LITTLE WARM 9620 .5 .2 250* 1.0 .3 333 SOUTH PASS 9040 .8 .7 114* 1.4 .4 350 ST. LAWRENCE ALT 8620 .9 .1 900* 1.6 .3 533 TOGWOTEE PASS 9580 .6 .4 150* .8 .5 160 TOWNSEND CREEK 8700 1.4 .1 1400* 2.1 .4 525 ----- ----- Basin wide percent of average 304* 357 BIGHORN BASIN BALD MTN. 9375 1.2 .9 133* 1.3 .4 325 BEAR TRAP MEADOW 7900 .2 .1 200* .9 .3 300 BLACKWATER 9780 .6 1.0 60* 1.2 .5 240 BONE SPRINGS DIV 9350 .6 1.2 50* 1.2 .4 300 EVENING STAR 9200 .0 1.0 0* .4 .6 67 GRAVE SPRINGS 8550 1.0 -M * 1.2 .4 300 KIRWIN 9550 .5 .5 100* .8 .3 267 MARQUETTE 8760 .9 .4 225* 1.4 .3 467 MIDDLE POWDER 7760 .8 .4 200* 1.5 .4 375 OWL CREEK 8975 .6 .3 200* .8 .2 400 POWDER RIVER PASS 9480 .3 .3 100* .9 .4 225 SHELL CREEK 9580 1.0 1.0 100* .8 .4 200 SYLVAN LAKE 8420 .0 .9 0* .8 .5 160 SYLVAN ROAD 8120 .0 .4 0* .3 .4 75 TIMBER CREEK 7950 .5 .0 * .8 .3 267 YOUNTS PEAK 8350 .2 .6 33* .6 .4 150 ----- ----- Basin wide percent of average 77* 240 SHOSHONE RIVER BLACKWATER 9780 .6 1.0 60* 1.2 .5 240 EVENING STAR 9200 .0 1.0 0* .4 .6 67 KIRWIN 9550 .5 .5 100* .8 .3 267 MARQUETTE 8760 .9 .4 225* 1.4 .3 467 SYLVAN LAKE 8420 .0 .9 0* .8 .5 160 SYLVAN ROAD 8120 .0 .4 0* .3 .4 75 YOUNTS PEAK 8350 .2 .6 33* .6 .4 150 ----- ----- Basin wide percent of average 46* 183 POWDER-TONGUE BEAR TRAP MEADOW 7900 .2 .1 200* .9 .3 300 BONE SPRINGS DIV 9350 .6 1.2 50* 1.2 .4 300 BURGESS JUNCTION 7880 .4 .5 80* 1.0 .4 250 CLOUD PEAK RESERVOIR 9860 1.4 .4 350* 1.7 .4 425 DOME LAKE 8880 .5 .6 83* 1.1 .4 275 GRAVE SPRINGS 8550 1.0 -M * 1.2 .4 300 HANSEN SAWMILL 8760 .1 .2 50* .9 .3 300 MIDDLE POWDER 7760 .8 .4 200* 1.5 .4 375 POWDER RIVER PASS 9480 .3 .3 100* .9 .4 225 SUCKER CREEK 8880 1.1 .4 275* 1.0 .4 250 TIE CREEK 6870 .2 -M * .9 .4 225 ----- ----- Basin wide percent of average 132* 293 BELLE FOURCHE BLIND PARK 6890 .0 .4 0* -M .3 * NORTH RAPID CREEK 6130 .0 -M * -M -M * WARREN PEAK 6520 .0 .4 0* 3.2 .3 1067 ----- ----- Basin wide percent of average 0* 1067* UPPER N. PLATTE RIVER COLUMBINE 9400 .5 .2 250* 1.9 .5 380 DIVIDE PEAK 8800 -M .3 * -M .6 * ELK RIVER 8700 .4 .0 * 3.3 .4 825 JOE WRIGHT 10120 1.8 .5 360* 3.3 .7 471 NORTH FRENCH CREEK 10100 2.6 .3 867* 3.5 .4 875 OLD BATTLE 10000 1.8 1.0 180* 3.3 .6 550 SOUTH BRUSH CREEK 8400 -M .0 * -M .4 * TOWER 10500 2.0 .9 222* 3.3 .8 412 WEBBER SPRINGS 9200 .3 .2 150* 2.3 .6 383 WILLOW CREEK PASS 9540 .3 .1 300* 1.4 .3 467 ----- ----- Basin wide percent of average 291* 519 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 1.2 .5 240* .0 .5 0 CASPER MTN. 7900 1.4 .2 700* 2.1 .5 420 DEADMAN HILL 10220 .8 .2 400* 1.6 .5 320 DEER PARK 9700 1.1 -M * -M -M * LAPRELE CREEK 8320 .5 .0 * 2.5 .3 833 RENO HILL 8400 2.3 .3 767* 2.8 .5 560 ROACH 9700 .5 .2 250* 1.4 .5 280 SAND LAKE 10080 2.7 .4 675* 4.3 .5 860 SOUTH PASS 9040 .8 .7 114* 1.4 .4 350 WINDY PEAK 7840 .3 .0 * 2.5 .2 1250 ----- ----- Basin wide percent of average 388* 477 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100* 2.1 .3 700 DIVIDE PEAK 8800 -M .3 * -M .6 * OLD BATTLE 10000 1.8 1.0 180* 3.3 .6 550 SANDSTONE RS 8150 .0 .0 100* 3.1 .3 1033 WHISKEY PARK 8950 .7 .3 233* 3.3 .4 825 ----- ----- Basin wide percent of average 192* 738 UPPER GREEN RIVER BIG SANDY OPENING 9100 1.0 .0 * 1.4 .3 467 BLIND BULL SUM 8650 .2 .0 * .7 .4 175 EAST RIM DIVIDE 7930 .0 .0 100* .4 .3 133 ELKHART PARK G.S. 9400 .3 .0 * .6 .3 200 GROS VENTRE SUMMIT 8775 .3 .0 * .6 .3 200 KENDALL R.S. 7740 .0 .0 100* .4 .3 133 LOOMIS PARK 8240 .1 .0 * .6 .3 200 NEW FORK LAKE 8340 .0 .0 100* .4 .3 133 SNIDER BASIN 8250 .2 .0 * .7 .3 233 SPRING CREEK DIVIDE 9000 .4 .0 * 1.2 .4 300 TRIPLE PEAK 8500 .1 .0 * 1.0 .5 200 ----- ----- Basin wide percent of average * 216 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100* 1.3 .3 433 HEWINTA 9500 .0 .0 100* .9 .5 180 HICKERSON PARK 9150 .5 .0 * .5 .4 125 HOLE-IN-ROCK 9150 .0 .0 100* 1.1 .4 275 INDIAN CREEK 9425 1.0 .0 * 1.5 .4 375 KELLEY R.S. 8180 .4 .0 * 1.1 .3 367 STEEL CREEK PARK 10100 .7 .6 117* 1.3 .5 260 ----- ----- Basin wide percent of average 117* 275 UPPER BEAR RIVER BUG LAKE 7950 .5 .4 125* 1.5 .6 250 HAYDEN FORK 9400 .1 .2 50* 1.0 .5 200 KELLEY R.S. 8180 .4 .0 * 1.1 .3 367 LILY LAKE 9050 .7 .3 233* 1.4 .5 280 MONTE CRISTO 8960 .0 .5 0* 1.6 .7 229 SALT RIVER SUMMIT 7600 .1 .0 * 1.2 .3 400 TRIAL LAKE 9960 .1 .5 20* .9 .6 150 ----- ----- Basin wide percent of average 74* 249 ----------------------------------------------------------------------------- -M = Missing data * = Data may not provide a valid measure of conditions. 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.