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 6 , 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* .4 .3 133 COTTONWOOD CREEK 7600 .1 .0 * .9 .5 180 GRANITE CREEK 6770 .1 .0 * .9 .3 300 GRASSY LAKE 7265 .0 .1 0* 1.1 .6 183 GROS VENTRE SUMMIT 8775 .7 .2 350* .8 .3 267 LEWIS LAKE DIVIDE 7860 .1 .0 * 1.1 .5 220 PHILLIPS BENCH 8200 .3 .1 300* .9 .4 225 SALT RIVER SUMMIT 7600 .1 .0 * .8 .3 267 SNAKE RIVER STATION 6920 -M .0 * .7 .4 175 SPRING CREEK DIVIDE 9000 .8 .1 800* .9 .4 225 THUMB DIVIDE 7980 .0 .0 100* .9 .3 300 TOGWOTEE PASS 9580 .9 .4 225* .8 .5 160 TWO OCEAN PLATEAU 9360 1.1 .4 275* .8 .5 160 WILLOW CREEK 8450 .0 .1 0* .9 .6 150 ----- ----- Basin wide percent of average 271* 202 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 1.3 .7 186* .9 .4 225 BLACK BEAR 8170 1.4 .5 280* 1.5 .6 250 CANYON 8090 .2 .1 200* .7 .3 233 FISHER CREEK 9100 .9 .5 180* .9 .5 180 MADISON PLATEAU 7750 .5 .3 167* .7 .4 175 NORTHEAST ENTRANCE 7350 .1 .0 * .4 .3 133 PARKER PEAK 9400 .6 .8 75* 1.0 .4 250 SYLVAN LAKE 8420 1.1 .6 183* 1.2 .4 300 THUMB DIVIDE 7980 .0 .0 100* .9 .3 300 TWO OCEAN PLATEAU 9360 1.1 .4 275* .8 .5 160 WHISKEY CREEK 6800 .1 .1 100* .7 .4 175 WHITE MILL 8700 .9 .4 225* .8 .5 160 WOLVERINE 7650 .1 .0 * .7 .3 233 ----- ----- Basin wide percent of average 184* 211 WIND RIVER BURROUGHS CREEK 8750 .8 .2 400* 1.1 .3 367 COLD SPRINGS 9630 1.0 .2 500* 1.3 .3 433 DEER PARK 9700 .7 .5 140* .6 .4 150 HOBBS PARK 10100 1.7 .4 425* 1.5 .4 375 LITTLE WARM 9370 .9 .3 300* .7 .3 233 SOUTH PASS 9040 .4 .2 200* .6 .4 150 ST. LAWRENCE ALT 8620 1.3 .1 1300* 1.5 .3 500 TOGWOTEE PASS 9580 .9 .4 225* .8 .5 160 TOWNSEND CREEK 8700 .8 .1 800* 1.2 .4 300 ----- ----- Basin wide percent of average 354* 282 BIGHORN BASIN BALD MTN. 9380 1.1 .9 122* 1.0 .4 250 BEAR TRAP MEADOW 8200 .0 .1 0* .5 .3 167 BLACKWATER 9780 1.6 .9 178* 1.4 .5 280 BONE SPRINGS DIV 9350 1.3 .8 162* 1.3 .4 325 EVENING STAR 9200 .9 .7 129* 1.0 .5 200 GRAVE SPRINGS 8550 .4 .1 400* .5 .4 125 KIRWIN 9550 .9 .5 180* 1.2 .3 400 MARQUETTE 8760 .8 .6 133* 1.1 .4 275 MIDDLE POWDER 7760 .0 .3 0* .5 .4 125 OWL CREEK 8975 1.1 .2 550* .9 .2 450 POWDER RIVER PASS 9480 .5 .4 125* .7 .3 233 SHELL CREEK 9580 1.0 1.0 100* 1.0 .3 333 SYLVAN LAKE 8420 1.1 .6 183* 1.2 .4 300 SYLVAN ROAD 7120 .1 .0 * 1.0 .4 250 TIMBER CREEK 7950 .7 .0 * .9 .3 300 YOUNTS PEAK 8350 .7 .3 233* .8 .3 267 ----- ----- Basin wide percent of average 154* 259 SHOSHONE RIVER BLACKWATER 9780 1.6 .9 178* 1.4 .5 280 EVENING STAR 9200 .9 .7 129* 1.0 .5 200 KIRWIN 9550 .9 .5 180* 1.2 .3 400 MARQUETTE 8760 .8 .6 133* 1.1 .4 275 SYLVAN LAKE 8420 1.1 .6 183* 1.2 .4 300 SYLVAN ROAD 7120 .1 .0 * 1.0 .4 250 YOUNTS PEAK 8350 .7 .3 233* .8 .3 267 ----- ----- Basin wide percent of average 167* 275 POWDER-TONGUE BEAR TRAP MEADOW 8200 .0 .1 0* .5 .3 167 BIG GOOSE 7990 .3 .1 300* .8 .4 200 BONE SPRINGS DIV 9350 1.3 .8 162* 1.3 .4 325 BURGESS JUNCTION 7880 .7 .4 175* .9 .4 225 CLOUD PEAK RESERVOIR 9860 .4 .2 200* .8 .4 200 DOME LAKE 8880 .7 .4 175* .9 .4 225 GRAVE SPRINGS 8550 .4 .1 400* .5 .4 125 HANSEN SAWMILL 8360 .2 .1 200* .7 .3 233 MIDDLE POWDER 7760 .0 .3 0* .5 .4 125 POWDER RIVER PASS 9480 .5 .4 125* .7 .3 233 SUCKER CREEK 8880 .9 .3 300* 1.0 .4 250 TIE CREEK 6870 .0 .0 100* .9 .4 225 ----- ----- Basin wide percent of average 169* 211 BELLE FOURCHE BLIND PARK 6890 .1 .0 * .7 .4 175 COLE CANYON 5910 -M -M * .1 -M * NORTH RAPID CREEK 6130 .0 .0 100* .5 .4 125 ----- ----- Basin wide percent of average * 150 UPPER N. PLATTE RIVER COLUMBINE 9400 .4 .0 * 1.6 .4 400 DIVIDE PEAK 8800 .6 .3 200* 1.9 .5 380 ELK RIVER 8700 .0 .0 100* 1.2 .4 300 JOE WRIGHT 10120 .3 .4 75* 1.2 .6 200 NORTH FRENCH CREEK 10100 1.6 .6 267* 2.0 .6 333 OLD BATTLE 10000 2.3 .5 460* 2.5 .6 417 SAGE CREEK BASIN 7850 .1 .1 100* 1.4 -M * SOUTH BRUSH CREEK 8400 .6 .1 600* 1.7 .4 425 TOWER 10500 2.6 .4 650* 2.9 .7 414 WEBBER SPRINGS 9200 .4 .2 200* 1.5 .5 300 WILLOW CREEK PASS 9540 .0 .1 0* .6 .3 200 ----- ----- Basin wide percent of average 315* 342 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .7 .4 175* 1.6 .4 400 CASPER MTN. 7900 .0 .2 0* .9 .4 225 DEADMAN HILL 10220 .2 .4 50* .4 .4 100 DEER PARK 9700 .7 .5 140* .6 .4 150 LAPRELE CREEK 8320 -M .1 * -M .3 * RENO HILL 8400 .9 .2 450* 1.3 .4 325 ROACH 9700 .3 .1 300* .7 .4 175 SAND LAKE 10080 1.0 .7 143* 1.4 .5 280 SOUTH PASS 9040 .4 .2 200* .6 .4 150 WINDY PEAK 7840 .2 .0 * .9 .3 300 ----- ----- Basin wide percent of average 156* 233 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100* 1.9 .3 633 DIVIDE PEAK 8800 .6 .3 200* 1.9 .5 380 OLD BATTLE 10000 2.3 .5 460* 2.5 .6 417 SANDSTONE RS 8150 .0 .0 100* 1.6 .4 400 WHISKEY PARK 8950 .9 .2 450* 1.8 .5 360 ----- ----- Basin wide percent of average 380* 422 UPPER GREEN RIVER BIG SANDY OPENING 9100 .8 .1 800* .7 .3 233 BLIND BULL SUM 8650 .6 .1 600* .7 .4 175 EAST RIM DIVIDE 7930 .4 .0 * .9 .2 450 ELKHART PARK G.S. 9400 1.1 .1 1100* 1.0 .3 333 GROS VENTRE SUMMIT 8775 .7 .2 350* .8 .3 267 KENDALL R.S. 7740 .2 .0 * .9 .3 300 LOOMIS PARK 8240 .3 .1 300* .9 .3 300 NEW FORK LAKE 8340 .2 .0 * .7 .3 233 SNIDER BASIN 8250 .3 .0 * .8 .3 267 SPRING CREEK DIVIDE 9000 .8 .1 800* .9 .4 225 TRIPLE PEAK 8500 .0 .1 0* 1.0 .4 250 ----- ----- Basin wide percent of average 538* 266 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100* 1.0 .2 500 HEWINTA 9500 .0 .1 0* .7 .4 175 HICKERSON PARK 9150 .2 .0 * 1.2 .3 400 HOLE-IN-ROCK 9150 .0 .0 100* 1.2 .3 400 INDIAN CREEK 9425 1.6 .1 1600* 1.4 .4 350 KELLEY R.S. 8180 .3 .1 300* .7 .4 175 STEEL CREEK PARK 10100 1.0 .5 200* .5 .4 125 ----- ----- Basin wide percent of average 363* 279 UPPER BEAR RIVER BUG LAKE 7950 .0 .3 0* .9 .4 225 HAYDEN FORK 9400 -M .2 * 1.5 .4 375 KELLEY R.S. 8180 .3 .1 300* .7 .4 175 LILY LAKE 9050 .5 .2 250* 1.3 .4 325 MONTE CRISTO 8960 -M .4 * .9 .5 180 SALT RIVER SUMMIT 7600 .1 .0 * .8 .3 267 TRIAL LAKE 9960 .9 .5 180* 1.4 .5 280 ----- ----- Basin wide percent of average 155* 259 ----------------------------------------------------------------------------- -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.