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 THURSDAY: OCTOBER 10 , 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 .1 0* .4 .6 67 COTTONWOOD CREEK 7600 .1 .1 100* .8 .9 89 GRANITE CREEK 6770 .0 .1 0* .9 .5 180 GRASSY LAKE 7265 .0 .2 0* 1.1 1.0 110 GROS VENTRE SUMMIT 8775 .7 .4 175* .8 .6 133 LEWIS LAKE DIVIDE 7860 .0 .1 0* 1.1 1.0 110 PHILLIPS BENCH 8200 .0 .1 0* .9 .7 129 SALT RIVER SUMMIT 7600 .1 .0 * .8 .6 133 SNAKE RIVER STATION 6920 -M .0 * .7 .7 100 SPRING CREEK DIVIDE 9000 .6 .2 300* .8 .8 100 THUMB DIVIDE 7980 .0 .1 0* .9 .6 150 TOGWOTEE PASS 9580 .8 .6 133* .7 .8 87 TWO OCEAN PLATEAU 9360 1.1 .8 138* .9 .9 100 WILLOW CREEK 8450 .0 .3 0* .9 1.1 82 ----- ----- Basin wide percent of average 106* 108 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 1.1 1.0 110* 1.0 .6 167 BLACK BEAR 8170 1.3 .6 217* 1.5 1.0 150 CANYON 8090 .1 .2 50* .6 .6 100 FISHER CREEK 9100 .7 .8 87* .9 1.0 90 MADISON PLATEAU 7750 .0 .3 0* .8 .8 100 NORTHEAST ENTRANCE 7350 .0 .1 0* .4 .5 80 PARKER PEAK 9400 .6 1.0 60* 1.1 .7 157 SYLVAN LAKE 8420 .5 .7 71* 1.2 .8 150 THUMB DIVIDE 7980 .0 .1 0* .9 .6 150 TWO OCEAN PLATEAU 9360 1.1 .8 138* .9 .9 100 WHISKEY CREEK 6800 .1 .1 100* .6 .7 86 WHITE MILL 8700 .9 .5 180* .9 .8 112 WOLVERINE 7650 .1 .1 100* .6 .6 100 ----- ----- Basin wide percent of average 103* 119 WIND RIVER BURROUGHS CREEK 8750 .7 .3 233* .9 .5 180 COLD SPRINGS 9630 .4 .2 200* 1.1 .6 183 DEER PARK 9700 .7 .6 117* .7 .8 87 HOBBS PARK 10100 1.7 .6 283* 1.6 .6 267 LITTLE WARM 9370 .5 .3 167* .6 .5 120 SOUTH PASS 9040 .1 .3 33* .7 .6 117 ST. LAWRENCE ALT 8620 1.0 .1 1000* 1.5 .5 300 TOGWOTEE PASS 9580 .8 .6 133* .7 .8 87 TOWNSEND CREEK 8700 .6 .2 300* 1.1 .6 183 ----- ----- Basin wide percent of average 203* 162 BIGHORN BASIN BALD MTN. 9380 1.1 1.2 92* 1.1 .7 157 BEAR TRAP MEADOW 8200 .0 .2 0* .5 .5 100 BLACKWATER 9780 1.5 1.2 125* 1.4 .8 175 BONE SPRINGS DIV 9350 1.3 1.0 130* 1.4 .8 175 EVENING STAR 9200 .8 .9 89* 1.1 .8 138 GRAVE SPRINGS 8550 .0 .2 0* .6 .6 100 KIRWIN 9550 .9 .7 129* 1.1 .6 183 MARQUETTE 8760 .8 .7 114* .8 .7 114 MIDDLE POWDER 7760 .0 .5 0* .5 .8 62 OWL CREEK 8975 1.1 .3 367* 1.0 .3 333 POWDER RIVER PASS 9480 .4 .4 100* .8 .6 133 SHELL CREEK 9580 1.2 1.3 92* 1.1 .6 183 SYLVAN LAKE 8420 .5 .7 71* 1.2 .8 150 SYLVAN ROAD 7120 .0 .1 0* 1.1 .6 183 TIMBER CREEK 7950 .1 .1 100* .9 .5 180 YOUNTS PEAK 8350 .7 .4 175* .7 .6 117 ----- ----- Basin wide percent of average 105* 149 SHOSHONE RIVER BLACKWATER 9780 1.5 1.2 125* 1.4 .8 175 EVENING STAR 9200 .8 .9 89* 1.1 .8 138 KIRWIN 9550 .9 .7 129* 1.1 .6 183 MARQUETTE 8760 .8 .7 114* .8 .7 114 SYLVAN LAKE 8420 .5 .7 71* 1.2 .8 150 SYLVAN ROAD 7120 .0 .1 0* 1.1 .6 183 YOUNTS PEAK 8350 .7 .4 175* .7 .6 117 ----- ----- Basin wide percent of average 111* 151 POWDER-TONGUE BEAR TRAP MEADOW 8200 .0 .2 0* .5 .5 100 BIG GOOSE 7990 .1 .2 50* 1.0 .6 167 BONE SPRINGS DIV 9350 1.3 1.0 130* 1.4 .8 175 BURGESS JUNCTION 7880 .3 .5 60* 1.1 .7 157 CLOUD PEAK RESERVOIR 9860 .2 .3 67* .9 .8 112 DOME LAKE 8880 .7 .6 117* .9 .8 112 GRAVE SPRINGS 8550 .0 .2 0* .6 .6 100 HANSEN SAWMILL 8360 .3 .2 150* .9 .6 150 MIDDLE POWDER 7760 .0 .5 0* .5 .8 62 POWDER RIVER PASS 9480 .4 .4 100* .8 .6 133 SUCKER CREEK 8880 .7 .4 175* 1.0 .7 143 TIE CREEK 6870 .0 .0 100* 1.0 .8 125 ----- ----- Basin wide percent of average 89* 128 BELLE FOURCHE BLIND PARK 6890 .1 .0 * .8 .8 100 COLE CANYON 5910 1.6 -M * .4 -M * NORTH RAPID CREEK 6130 .0 .1 0* .7 .8 87 ----- ----- Basin wide percent of average 0* 94 UPPER N. PLATTE RIVER COLUMBINE 9400 .3 .0 * 1.4 .7 200 DIVIDE PEAK 8800 .1 .5 20* 1.9 .8 237 ELK RIVER 8700 .0 .1 0* 1.2 .7 171 JOE WRIGHT 10120 .5 .6 83* 1.2 1.0 120 NORTH FRENCH CREEK 10100 1.2 .9 133* 2.0 1.0 200 OLD BATTLE 10000 2.1 .8 262* 2.6 1.1 236 SAGE CREEK BASIN 7850 .0 .2 0* 1.4 -M * SOUTH BRUSH CREEK 8400 .1 .1 100* 1.7 .8 212 TOWER 10500 2.1 .7 300* 2.8 1.2 233 WEBBER SPRINGS 9200 .1 .4 25* 1.5 .9 167 WILLOW CREEK PASS 9540 .1 .2 50* .5 .6 83 ----- ----- Basin wide percent of average 140* 191 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .2 .6 33* 1.2 .8 150 CASPER MTN. 7900 .0 .4 0* 1.0 .8 125 DEADMAN HILL 10220 -M .6 * .4 .8 50 DEER PARK 9700 .7 .6 117* .7 .8 87 LAPRELE CREEK 8320 .0 .2 0* .8 .6 133 RENO HILL 8400 .5 .4 125* -M .8 * ROACH 9700 .1 .2 50* .7 .7 100 SAND LAKE 10080 .8 1.0 80* 1.4 .9 156 SOUTH PASS 9040 .1 .3 33* .7 .6 117 WINDY PEAK 7840 .1 .1 100* .9 .5 180 ----- ----- Basin wide percent of average 66* 120 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .0 100* 1.8 .6 300 DIVIDE PEAK 8800 .1 .5 20* 1.9 .8 237 OLD BATTLE 10000 2.1 .8 262* 2.6 1.1 236 SANDSTONE RS 8150 .0 .1 0* 1.5 .7 214 WHISKEY PARK 8950 .3 .3 100* 1.7 .9 189 ----- ----- Basin wide percent of average 147* 232 UPPER GREEN RIVER BIG SANDY OPENING 9100 .8 .3 267* .7 .6 117 BLIND BULL SUM 8650 .2 .3 67* .7 .7 100 EAST RIM DIVIDE 7930 .0 .0 100* 1.0 .4 250 ELKHART PARK G.S. 9400 1.0 .1 1000* 1.0 .6 167 GROS VENTRE SUMMIT 8775 .7 .4 175* .8 .6 133 KENDALL R.S. 7740 .1 .0 * .8 .5 160 LOOMIS PARK 8240 .3 .1 300* .9 .6 150 NEW FORK LAKE 8340 .1 .0 * .5 .5 100 SNIDER BASIN 8250 .1 .1 100* .8 .5 160 SPRING CREEK DIVIDE 9000 .6 .2 300* .8 .8 100 TRIPLE PEAK 8500 .0 .1 0* 1.0 .7 143 ----- ----- Basin wide percent of average 231* 138 LOWER GREEN RIVER HAMS FORK 7840 .0 .0 100* .9 .4 225 HEWINTA 9500 .0 .3 0* .9 .7 129 HICKERSON PARK 9150 .2 .0 * 1.1 .5 220 HOLE-IN-ROCK 9150 .0 .0 100* 1.1 .5 220 INDIAN CREEK 9425 1.3 .3 433* 1.5 .8 188 KELLEY R.S. 8180 .1 .1 100* .7 .6 117 STEEL CREEK PARK 10100 .3 .6 50* .5 .7 71 ----- ----- Basin wide percent of average 131* 160 UPPER BEAR RIVER BUG LAKE 7950 .0 .4 0* .9 .7 129 HAYDEN FORK 9400 .0 .3 0* 1.3 .7 186 KELLEY R.S. 8180 .1 .1 100* .7 .6 117 LILY LAKE 9050 .1 .3 33* 1.2 .7 171 MONTE CRISTO 8960 -M .5 * .8 .8 100 SALT RIVER SUMMIT 7600 .1 .0 * .8 .6 133 TRIAL LAKE 9960 .1 .6 17* 1.3 .8 162 ----- ----- Basin wide percent of average 18* 143 ----------------------------------------------------------------------------- -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.