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 4 , 2002 ----------------------------------------------------------------------------- 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* .3 .2 150 COTTONWOOD CREEK 7600 .1 .0 * .5 .3 167 GRANITE CREEK 6770 .2 .0 * .7 .2 350 GRASSY LAKE 7265 .0 .1 0* .4 .3 133 GROS VENTRE SUMMIT 8775 .7 .1 700* .7 .2 350 LEWIS LAKE DIVIDE 7860 .0 .0 100* .2 .3 67 PHILLIPS BENCH 8200 .5 .0 * .7 .2 350 SALT RIVER SUMMIT 7600 .3 .0 * .6 .2 300 SNAKE RIVER STATION 6920 -M .0 * .2 .2 100 SPRING CREEK DIVIDE 9000 .6 .1 600* .6 .3 200 THUMB DIVIDE 7980 .2 .0 * .6 .2 300 TOGWOTEE PASS 9580 .6 .2 300* .4 .3 133 TWO OCEAN PLATEAU 9360 .6 .3 200* .3 .3 100 WILLOW CREEK 8450 .0 .1 0* .5 .4 125 ----- ----- Basin wide percent of average 278* 186 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 .8 .6 133* .5 .2 250 BLACK BEAR 8170 .7 .4 175* .6 .3 200 CANYON 8090 .2 .1 200* .4 .2 200 FISHER CREEK 9100 .6 .4 150* .4 .3 133 MADISON PLATEAU 7750 .6 .2 300* .5 .3 167 NORTHEAST ENTRANCE 7350 .1 .0 * .2 .2 100 PARKER PEAK 9400 .3 .6 50* .6 .2 300 SYLVAN LAKE 8420 .3 .5 60* .3 .3 100 THUMB DIVIDE 7980 .2 .0 * .6 .2 300 TWO OCEAN PLATEAU 9360 .6 .3 200* .3 .3 100 WHISKEY CREEK 6800 .4 .1 400* .3 .2 150 WHITE MILL 8700 .4 .3 133* .3 .3 100 WOLVERINE 7650 .1 .0 * .4 .2 200 ----- ----- Basin wide percent of average 140* 169 WIND RIVER BURROUGHS CREEK 8750 .6 .2 300* .9 .2 450 COLD SPRINGS 9630 1.0 .2 500* 1.3 .2 650 DEER PARK 9700 .7 .4 175* .6 .3 200 HOBBS PARK 10100 1.7 .4 425* 1.5 .2 750 LITTLE WARM 9370 .8 .2 400* .5 .2 250 SOUTH PASS 9040 .5 .2 250* .6 .2 300 ST. LAWRENCE ALT 8620 1.5 .1 1500* 1.6 .2 800 TOGWOTEE PASS 9580 .6 .2 300* .4 .3 133 TOWNSEND CREEK 8700 1.0 .1 1000* 1.2 .2 600 ----- ----- Basin wide percent of average 420* 430 BIGHORN BASIN BALD MTN. 9380 .6 .8 75* .5 .2 250 BEAR TRAP MEADOW 8200 .1 .1 100* .4 .2 200 BLACKWATER 9780 .8 .8 100* .7 .3 233 BONE SPRINGS DIV 9350 .5 .7 71* .5 .3 167 EVENING STAR 9200 .4 .6 67* .4 .3 133 GRAVE SPRINGS 8550 .5 .1 500* .5 .2 250 KIRWIN 9550 .7 .5 140* .9 .2 450 MARQUETTE 8760 .7 .5 140* 1.1 .2 550 MIDDLE POWDER 7760 .1 .3 33* .4 .3 133 OWL CREEK 8975 1.0 .2 500* .9 .1 900 POWDER RIVER PASS 9480 .3 .3 100* .5 .2 250 SHELL CREEK 9580 .4 .9 44* .4 .2 200 SYLVAN LAKE 8420 .3 .5 60* .3 .3 100 SYLVAN ROAD 7120 .1 .0 * .1 .2 50 TIMBER CREEK 7950 .8 .0 * .9 .2 450 YOUNTS PEAK 8350 .3 .2 150* .4 .2 200 ----- ----- Basin wide percent of average 103* 247 SHOSHONE RIVER BLACKWATER 9780 .8 .8 100* .7 .3 233 EVENING STAR 9200 .4 .6 67* .4 .3 133 KIRWIN 9550 .7 .5 140* .9 .2 450 MARQUETTE 8760 .7 .5 140* 1.1 .2 550 SYLVAN LAKE 8420 .3 .5 60* .3 .3 100 SYLVAN ROAD 7120 .1 .0 * .1 .2 50 YOUNTS PEAK 8350 .3 .2 150* .4 .2 200 ----- ----- Basin wide percent of average 103* 229 POWDER-TONGUE BEAR TRAP MEADOW 8200 .1 .1 100* .4 .2 200 BIG GOOSE 7990 .4 .1 400* .6 .2 300 BONE SPRINGS DIV 9350 .5 .7 71* .5 .3 167 BURGESS JUNCTION 7880 .6 .4 150* .7 .2 350 CLOUD PEAK RESERVOIR 9860 .2 .2 100* .6 .3 200 DOME LAKE 8880 .4 .4 100* .5 .3 167 GRAVE SPRINGS 8550 .5 .1 500* .5 .2 250 HANSEN SAWMILL 8360 .5 .1 500* .6 .2 300 MIDDLE POWDER 7760 .1 .3 33* .4 .3 133 POWDER RIVER PASS 9480 .3 .3 100* .5 .2 250 SUCKER CREEK 8880 .6 .3 200* .6 .2 300 TIE CREEK 6870 .3 .0 * .7 .3 233 ----- ----- Basin wide percent of average 140* 228 BELLE FOURCHE BLIND PARK 6890 .2 .0 * .5 .3 167 COLE CANYON 5910 -M -M * .1 -M * NORTH RAPID CREEK 6130 .1 .0 * .4 .3 133 ----- ----- Basin wide percent of average * 150 UPPER N. PLATTE RIVER COLUMBINE 9400 .8 .0 * 1.2 .2 600 DIVIDE PEAK 8800 .6 .2 300* 1.6 .3 533 ELK RIVER 8700 .2 .0 * 1.1 .2 550 JOE WRIGHT 10120 .4 .2 200* 1.1 .3 367 NORTH FRENCH CREEK 10100 1.3 .4 325* 1.4 .3 467 OLD BATTLE 10000 1.7 .4 425* 1.4 .4 350 SAGE CREEK BASIN 7850 .1 .1 100* 1.3 -M * SOUTH BRUSH CREEK 8400 .8 .0 * 1.1 .3 367 TOWER 10500 -M .3 * 2.2 .4 550 WEBBER SPRINGS 9200 .5 .2 250* 1.0 .3 333 WILLOW CREEK PASS 9540 .0 .1 0* .5 .2 250 ----- ----- Basin wide percent of average 287* 434 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .3 .4 75* .9 .3 300 CASPER MTN. 7900 .0 .1 0* .8 .3 267 DEADMAN HILL 10220 .1 .4 25* .3 .3 100 DEER PARK 9700 .7 .4 175* .6 .3 200 LAPRELE CREEK 8320 1.0 .1 1000* .8 .2 400 RENO HILL 8400 .9 .2 450* 1.1 .3 367 ROACH 9700 .5 .1 500* .7 .2 350 SAND LAKE 10080 .7 .6 117* 1.1 .3 367 SOUTH PASS 9040 .5 .2 250* .6 .2 300 WINDY PEAK 7840 -M .0 * .8 .2 400 ----- ----- Basin wide percent of average 188* 296 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .2 .0 * 1.7 .2 850 DIVIDE PEAK 8800 .6 .2 300* 1.6 .3 533 OLD BATTLE 10000 1.7 .4 425* 1.4 .4 350 SANDSTONE RS 8150 .0 .0 100* 1.4 .2 700 WHISKEY PARK 8950 -M .1 * 1.4 .3 467 ----- ----- Basin wide percent of average 383* 536 UPPER GREEN RIVER BIG SANDY OPENING 9100 .7 .1 700* .6 .2 300 BLIND BULL SUM 8650 .3 .1 300* .5 .2 250 EAST RIM DIVIDE 7930 .6 .0 * .9 .1 900 ELKHART PARK G.S. 9400 1.2 .0 * 1.0 .2 500 GROS VENTRE SUMMIT 8775 .7 .1 700* .7 .2 350 KENDALL R.S. 7740 .3 .0 * .7 .2 350 LOOMIS PARK 8240 .6 .0 * .8 .2 400 NEW FORK LAKE 8340 .5 .0 * .8 .2 400 SNIDER BASIN 8250 .7 .0 * .7 .2 350 SPRING CREEK DIVIDE 9000 .6 .1 600* .6 .3 200 TRIPLE PEAK 8500 .2 .0 * .8 .2 400 ----- ----- Basin wide percent of average 575* 368 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100* .8 .1 800 HEWINTA 9500 .0 .1 0* .8 .2 400 HICKERSON PARK 9150 .6 .0 * 1.1 .2 550 HOLE-IN-ROCK 9150 .0 .0 100* 1.0 .2 500 INDIAN CREEK 9425 1.1 .1 1100* 1.0 .3 333 KELLEY R.S. 8180 .3 .0 * .4 .2 200 STEEL CREEK PARK 10100 1.0 .4 250* .3 .2 150 ----- ----- Basin wide percent of average 350* 386 UPPER BEAR RIVER BUG LAKE 7950 .4 .3 133* .9 .2 450 HAYDEN FORK 9400 .1 .2 50* 1.4 .2 700 KELLEY R.S. 8180 .3 .0 * .4 .2 200 LILY LAKE 9050 1.0 .2 500* 1.2 .2 600 MONTE CRISTO 8960 -M .3 * .8 .3 267 SALT RIVER SUMMIT 7600 .3 .0 * .6 .2 300 TRIAL LAKE 9960 1.1 .4 275* 1.4 .3 467 ----- ----- Basin wide percent of average 236* 419 ----------------------------------------------------------------------------- -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.