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 FRIDAY: OCTOBER 9 , 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 .5 80 COTTONWOOD CREEK 7600 .0 .0 100* 1.8 .6 300 GRANITE CREEK 6770 .0 .0 100* .2 .6 33 GRASSY LAKE 7265 .0 .0 100* .1 .9 11 GROS VENTRE SUMMIT 8775 .5 .0 * .6 .4 150 LEWIS LAKE DIVIDE 7860 .0 .0 100* .1 .9 11 PHILLIPS BENCH 8200 .0 .0 100* .4 .7 57 SALT RIVER SUMMIT 7600 .0 .0 100* 1.2 .4 300 SNAKE RIVER STATION 6920 .0 .0 100* .2 .6 33 SPRING CREEK DIVIDE 9000 .5 .0 * 1.2 .5 240 THUMB DIVIDE 7980 .1 .0 * .1 .5 20 TOGWOTEE PASS 9580 .5 .6 83* .8 .6 133 TWO OCEAN PLATEAU 9360 .2 .7 29* .8 .7 114 WILLOW CREEK 8450 .0 .0 100* 1.4 .7 200 ----- ----- Basin wide percent of average 54* 108 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 .2 1.1 18* .6 .5 120 BLACK BEAR 7950 .0 .9 0* .2 .9 22 CANYON 7940 .0 .2 0* .1 .5 20 FISHER CREEK 9100 .1 .7 14* .7 .8 88 MADISON PLATEAU 7750 .0 .4 0* .1 .6 17 NORTHEAST ENTRANCE 7350 .0 .0 100* .4 .4 100 PARKER PEAK 9400 .0 1.3 0* .8 .6 133 SYLVAN LAKE 8420 .1 .9 11* .8 .7 114 THUMB DIVIDE 7980 .1 .0 * .1 .5 20 TWO OCEAN PLATEAU 9360 .2 .7 29* .8 .7 114 WHISKEY CREEK 6800 .0 .1 0* .0 .6 0 WHITE MILL 8700 .0 .6 0* .5 .7 71 WOLVERINE 7650 .1 .1 100* .7 .4 175 ----- ----- Basin wide percent of average 10* 73 WIND RIVER BURROUGHS CREEK 8750 .4 .2 200* .5 .4 125 COLD SPRINGS 9630 .1 .2 50* .9 .5 180 DEER PARK 9700 .9 -M * 1.7 -M * HOBBS PARK 10100 2.1 .6 350* 2.4 .5 480 LITTLE WARM 9620 .3 .3 100* .9 .5 180 SOUTH PASS 9040 .6 .8 75* 1.4 .6 233 ST. LAWRENCE ALT 8620 .6 .2 300* 1.6 .4 400 TOGWOTEE PASS 9580 .5 .6 83* .8 .6 133 TOWNSEND CREEK 8700 1.2 .2 600* 2.1 .5 420 ----- ----- Basin wide percent of average 187* 265 BIGHORN BASIN BALD MTN. 9375 1.2 1.1 109* 1.3 .6 217 BEAR TRAP MEADOW 7900 .1 .2 50* 1.1 .4 275 BLACKWATER 9780 .6 1.0 60* 1.2 .6 200 BONE SPRINGS DIV 9350 .6 1.3 46* 1.2 .6 200 EVENING STAR 9200 .0 1.2 0* .4 .7 57 GRAVE SPRINGS 8550 .6 -M * 1.3 .5 260 KIRWIN 9550 .5 .5 100* .8 .4 200 MARQUETTE 8760 .8 .4 200* 1.4 .5 280 MIDDLE POWDER 7760 .3 .5 60* 1.5 .5 300 OWL CREEK 8975 .5 .4 125* .9 .3 300 POWDER RIVER PASS 9480 .1 .4 25* .9 .5 180 SHELL CREEK 9580 1.0 1.2 83* .8 .5 160 SYLVAN LAKE 8420 .1 .9 11* .8 .7 114 SYLVAN ROAD 8120 .0 .5 0* .3 .6 50 TIMBER CREEK 7950 .4 .1 400* 1.3 .3 433 YOUNTS PEAK 8350 .2 .7 29* .6 .5 120 ----- ----- Basin wide percent of average 62* 193 SHOSHONE RIVER BLACKWATER 9780 .6 1.0 60* 1.2 .6 200 EVENING STAR 9200 .0 1.2 0* .4 .7 57 KIRWIN 9550 .5 .5 100* .8 .4 200 MARQUETTE 8760 .8 .4 200* 1.4 .5 280 SYLVAN LAKE 8420 .1 .9 11* .8 .7 114 SYLVAN ROAD 8120 .0 .5 0* .3 .6 50 YOUNTS PEAK 8350 .2 .7 29* .6 .5 120 ----- ----- Basin wide percent of average 42* 138 POWDER-TONGUE BEAR TRAP MEADOW 7900 .1 .2 50* 1.1 .4 275 BONE SPRINGS DIV 9350 .6 1.3 46* 1.2 .6 200 BURGESS JUNCTION 7880 .1 .5 20* 1.0 .5 200 CLOUD PEAK RESERVOIR 9860 .9 .4 225* 1.8 .5 360 DOME LAKE 8880 .4 .6 67* 1.1 .6 183 GRAVE SPRINGS 8550 .6 -M * 1.3 .5 260 HANSEN SAWMILL 8760 .1 .2 50* .9 .4 225 MIDDLE POWDER 7760 .3 .5 60* 1.5 .5 300 POWDER RIVER PASS 9480 .1 .4 25* .9 .5 180 SUCKER CREEK 8880 .6 .4 150* 1.0 .6 167 TIE CREEK 6870 .1 -M * .7 .5 140 ----- ----- Basin wide percent of average 71* 223 BELLE FOURCHE BLIND PARK 6890 .0 .5 0* 3.0 .5 600 NORTH RAPID CREEK 6130 .0 -M * 3.8 -M * WARREN PEAK 6520 .0 .5 0* 3.2 .4 800 ----- ----- Basin wide percent of average 0* 689 UPPER N. PLATTE RIVER COLUMBINE 9400 .0 .3 0* 2.1 .6 350 DIVIDE PEAK 8800 -M .3 * -M .8 * ELK RIVER 8700 .0 .0 100* 3.5 .6 583 JOE WRIGHT 10120 1.6 .6 267* 3.4 .9 378 NORTH FRENCH CREEK 10100 2.3 .3 767* 3.5 .6 583 OLD BATTLE 10000 1.7 1.2 142* 3.4 .8 425 SOUTH BRUSH CREEK 8400 -M .1 * -M .6 * TOWER 10500 1.6 1.2 133* 3.3 1.0 330 WEBBER SPRINGS 9200 .0 .3 0* 2.4 .8 300 WILLOW CREEK PASS 9540 .3 .1 300* 1.7 .5 340 ----- ----- Basin wide percent of average 188* 402 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .9 .6 150* .0 .6 0 CASPER MTN. 7900 1.0 .2 500* 2.2 .6 367 DEADMAN HILL 10220 .9 .2 450* 1.7 .6 283 DEER PARK 9700 .9 -M * 1.7 -M * LAPRELE CREEK 8320 .0 .1 0* 2.6 .4 650 RENO HILL 8400 2.0 .3 667* 2.9 .6 483 ROACH 9700 .0 .2 0* 1.4 .7 200 SAND LAKE 10080 2.7 .5 540* 4.4 .7 629 SOUTH PASS 9040 .6 .8 75* 1.4 .6 233 WINDY PEAK 7840 .0 .0 100* 3.0 .3 1000 ----- ----- Basin wide percent of average 279* 384 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100* 2.1 .5 420 DIVIDE PEAK 8800 -M .3 * -M .8 * OLD BATTLE 10000 1.7 1.2 142* 3.4 .8 425 SANDSTONE RS 8150 .0 .0 100* 3.1 .4 775 WHISKEY PARK 8950 .5 .3 167* 3.4 .5 680 ----- ----- Basin wide percent of average 147* 545 UPPER GREEN RIVER BIG SANDY OPENING 9100 .9 .0 * 1.4 .4 350 BLIND BULL SUM 8650 .1 .0 * .7 .5 140 EAST RIM DIVIDE 7930 .0 .0 100* .4 .4 100 ELKHART PARK G.S. 9400 .0 .0 100* .6 .4 150 GROS VENTRE SUMMIT 8775 .5 .0 * .6 .4 150 KENDALL R.S. 7740 .0 .0 100* .4 .4 100 LOOMIS PARK 8240 .1 .0 * .6 .5 120 NEW FORK LAKE 8340 .0 .0 100* .4 .4 100 SNIDER BASIN 8250 .0 .0 100* .7 .4 175 SPRING CREEK DIVIDE 9000 .5 .0 * 1.2 .5 240 TRIPLE PEAK 8500 .0 .0 100* 1.0 .7 143 ----- ----- Basin wide percent of average * 160 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100* 1.3 .3 433 HEWINTA 9500 .0 .1 0* 1.0 .6 167 HICKERSON PARK 9150 .4 .0 * .6 .5 120 HOLE-IN-ROCK 9150 .0 .0 100* 1.1 .5 220 INDIAN CREEK 9425 .9 .0 * 1.5 .6 250 KELLEY R.S. 8180 .1 .0 * 1.1 .5 220 STEEL CREEK PARK 10100 .1 .6 17* 1.3 .6 217 ----- ----- Basin wide percent of average 14* 219 UPPER BEAR RIVER BUG LAKE 7950 .1 .4 25* 1.5 .9 167 HAYDEN FORK 9400 .0 .2 0* 1.0 .6 167 KELLEY R.S. 8180 .1 .0 * 1.1 .5 220 LILY LAKE 9050 .0 .3 0* 1.4 .7 200 MONTE CRISTO 8960 .0 .5 0* 1.6 .9 178 SALT RIVER SUMMIT 7600 .0 .0 100* 1.2 .4 300 TRIAL LAKE 9960 .1 .5 20* .9 .7 129 ----- ----- Basin wide percent of average 11* 185 ----------------------------------------------------------------------------- -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.