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 TUESDAY: OCTOBER 21 , 2008 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .0 .2 0 1.5 1.2 125 COTTONWOOD CREEK 7670 .0 .3 0 1.4 1.8 78 GRAND TARGHEE 9260 1.1 -M * 3.1 -M * GRANITE CREEK 6770 .2 .2 100 1.7 1.1 155 GRASSY LAKE 7265 .2 .6 33 2.2 2.0 110 GROS VENTRE SUMMIT 8750 1.7 .8 212 2.1 1.2 175 GUNSIGHT PASS 9820 .6 -M * 1.3 -M * LEWIS LAKE DIVIDE 7850 .3 .4 75 1.9 1.8 106 PHILLIPS BENCH 8200 .7 .6 117 1.7 1.4 121 SALT RIVER SUMMIT 7760 -M .1 * 1.2 1.2 100 SNAKE RIVER STATION 6920 .2 .2 100 1.4 1.4 100 SPRING CREEK DIVIDE 9000 .5 .7 71 1.2 1.4 86 THUMB DIVIDE 7980 .0 .3 0 2.3 1.3 177 TOGWOTEE PASS 9580 1.6 1.5 107 2.1 1.7 124 TWO OCEAN PLATEAU 9240 1.9 1.8 106 1.6 1.9 84 WILLOW CREEK 8380 .1 .8 12 2.0 2.3 87 ----- ----- Basin wide percent of average 88 112 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 1.4 1.7 82 1.4 1.3 108 BLACK BEAR 8170 1.2 1.1 109 3.3 2.0 165 CANYON 7870 .0 .3 0 .7 1.1 64 FISHER CREEK 9100 1.1 1.4 79 2.1 2.0 105 MADISON PLATEAU 7750 .5 .6 83 1.8 1.6 112 NORTHEAST ENTRANCE 7350 .0 .1 0 1.0 1.0 100 PARKER PEAK 9400 1.4 1.8 78 1.5 1.6 94 SYLVAN LAKE 8420 .0 1.1 0 1.6 1.6 100 THUMB DIVIDE 7980 .0 .3 0 2.3 1.3 177 TWO OCEAN PLATEAU 9240 1.9 1.8 106 1.6 1.9 84 WHISKEY CREEK 6800 .0 .2 0 1.4 1.3 108 WHITE MILL 8700 1.2 1.0 120 1.5 1.7 88 WOLVERINE 7650 .0 .2 0 1.2 1.2 100 ----- ----- Basin wide percent of average 75 109 WIND RIVER BURROUGHS CREEK 8750 1.8 .5 360 2.1 1.0 210 COLD SPRINGS 9630 1.6 .6 267 2.3 1.2 192 DEER PARK 9700 1.2 1.1 109 2.5 1.6 156 HOBBS PARK 10100 2.2 1.4 157 2.6 1.4 186 LITTLE WARM 9370 1.4 .7 200 1.9 1.1 173 SOUTH PASS 9040 1.3 .7 186 2.9 1.3 223 ST. LAWRENCE ALT 8620 1.5 .5 300 2.3 1.1 209 TOGWOTEE PASS 9580 1.6 1.5 107 2.1 1.7 124 TOWNSEND CREEK 8700 1.7 .6 283 2.6 1.4 186 ----- ----- Basin wide percent of average 188 181 BIGHORN BASIN BALD MTN. 9380 1.8 1.9 95 2.5 1.6 156 BEAR TRAP MEADOW 8200 .5 .4 125 1.6 1.2 133 BLACKWATER 9780 1.5 2.1 71 1.7 1.7 100 BONE SPRINGS DIV 9350 1.5 1.8 83 1.9 1.7 112 EVENING STAR 9200 1.5 1.6 94 2.1 1.7 124 GRAVE SPRINGS 8550 .8 .8 100 1.7 1.5 113 KIRWIN 9550 1.7 1.2 142 1.7 1.1 155 MARQUETTE 8760 1.3 1.3 100 2.0 1.5 133 MIDDLE POWDER 7760 .0 1.0 0 1.7 1.8 94 OWL CREEK 8975 1.7 .6 283 1.8 .8 225 POWDER RIVER PASS 9480 .9 .8 112 1.7 1.3 131 SHELL CREEK 9580 2.1 2.0 105 2.4 1.4 171 SYLVAN LAKE 8420 .0 1.1 0 1.6 1.6 100 SYLVAN ROAD 7120 .0 .2 0 1.1 1.1 100 TIMBER CREEK 7950 1.2 .6 200 2.1 1.0 210 YOUNTS PEAK 8350 1.2 .8 150 1.4 1.2 117 ----- ----- Basin wide percent of average 97 131 SHOSHONE RIVER BLACKWATER 9780 1.5 2.1 71 1.7 1.7 100 EVENING STAR 9200 1.5 1.6 94 2.1 1.7 124 KIRWIN 9550 1.7 1.2 142 1.7 1.1 155 MARQUETTE 8760 1.3 1.3 100 2.0 1.5 133 SYLVAN LAKE 8420 .0 1.1 0 1.6 1.6 100 SYLVAN ROAD 7120 .0 .2 0 1.1 1.1 100 YOUNTS PEAK 8350 1.2 .8 150 1.4 1.2 117 ----- ----- Basin wide percent of average 87 117 POWDER-TONGUE BEAR TRAP MEADOW 8200 .5 .4 125 1.6 1.2 133 BIG GOOSE 7990 .5 .5 100 1.7 1.5 113 BONE SPRINGS DIV 9350 1.5 1.8 83 1.9 1.7 112 BURGESS JUNCTION 7880 .9 1.0 90 1.9 1.5 127 CLOUD PEAK RESERVOIR 9860 1.4 1.0 140 2.0 1.8 111 DOME LAKE 8880 .9 1.2 75 1.6 1.7 94 GRAVE SPRINGS 8550 .8 .8 100 1.7 1.5 113 HANSEN SAWMILL 8360 .0 .4 0 1.4 1.2 117 MIDDLE POWDER 7760 .0 1.0 0 1.7 1.8 94 POWDER RIVER PASS 9480 .9 .8 112 1.7 1.3 131 SUCKER CREEK 8880 1.0 .9 111 2.1 1.6 131 TIE CREEK 6870 .3 .4 75 2.9 1.8 161 ----- ----- Basin wide percent of average 85 119 BELLE FOURCHE BLIND PARK 6890 .0 .1 0 1.2 1.7 71 COLE CANYON 5910 .0 .4 0 2.7 1.2 225 NORTH RAPID CREEK 6130 .0 .2 0 1.7 1.7 100 ----- ----- Basin wide percent of average 0 122 UPPER N. PLATTE RIVER COLUMBINE 9160 .2 .2 100 .6 1.4 43 DIVIDE PEAK 8880 .1 1.0 10 2.0 1.8 111 ELK RIVER 8700 .2 .3 67 1.1 1.4 79 JOE WRIGHT 10120 .0 1.4 0 .9 2.2 41 NORTH FRENCH CREEK 10130 .5 2.0 25 1.3 2.0 65 OLD BATTLE 10000 .1 1.7 6 1.4 2.2 64 SAGE CREEK BASIN 7850 .0 .6 0 .8 1.0 80 SOUTH BRUSH CREEK 8440 .0 .3 0 .8 1.7 47 TOWER 10500 .2 1.7 12 1.8 2.3 78 WEBBER SPRINGS 9250 .1 .9 11 1.0 1.9 53 WILLOW CREEK PASS 9540 .0 .6 0 .6 1.3 46 ----- ----- Basin wide percent of average 13 64 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .1 1.3 8 .6 1.5 40 CASPER MTN. 7900 .1 1.0 10 1.6 1.6 100 DEADMAN HILL 10220 1.3 1.4 93 .6 1.6 37 DEER PARK 9700 1.2 1.1 109 2.5 1.6 156 LAPRELE CREEK 8375 .0 .5 0 .6 1.2 50 RENO HILL 8400 .5 1.1 45 1.2 1.6 75 ROACH 9700 .2 .5 40 .8 1.5 53 SAND LAKE 10050 1.0 1.9 53 .9 1.9 47 SOUTH PASS 9040 1.3 .7 186 2.9 1.3 223 WINDY PEAK 7900 .6 .2 300 .8 1.1 73 ----- ----- Basin wide percent of average 65 84 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .2 0 .6 1.2 50 DIVIDE PEAK 8880 .1 1.0 10 2.0 1.8 111 OLD BATTLE 10000 .1 1.7 6 1.4 2.2 64 SANDSTONE RS 8150 .1 .2 50 .6 1.5 40 WHISKEY PARK 8950 .2 .9 22 1.1 1.9 58 ----- ----- Basin wide percent of average 12 66 UPPER GREEN RIVER BIG SANDY OPENING 9080 1.0 .7 143 1.4 1.1 127 BLIND BULL SUM 8650 1.5 .8 188 2.0 1.3 154 EAST RIM DIVIDE 7930 .0 .2 0 1.9 .8 237 ELKHART PARK G.S. 9400 .9 .4 225 1.8 1.3 138 GROS VENTRE SUMMIT 8750 1.7 .8 212 2.1 1.2 175 GUNSIGHT PASS 9820 .6 -M * 1.3 -M * KENDALL R.S. 7740 .1 .2 50 1.5 1.0 150 LOOMIS PARK 8240 .7 .4 175 2.1 1.1 191 NEW FORK LAKE 8340 .2 .2 100 1.5 1.0 150 SNIDER BASIN 8060 .3 .3 100 1.2 .9 133 SPRING CREEK DIVIDE 9000 .5 .7 71 1.2 1.4 86 TRIPLE PEAK 8500 1.0 .5 200 1.9 1.3 146 ----- ----- Basin wide percent of average 152 150 LOWER GREEN RIVER HAMS FORK 7840 .0 .1 0 1.3 .9 144 HEWINTA 9519 .0 .6 0 1.2 1.5 80 HICKERSON PARK 9145 .0 .2 0 1.2 1.1 109 HOLE-IN-ROCK 9150 .0 .2 0 1.7 1.1 155 INDIAN CREEK 9425 1.2 .7 171 1.7 1.5 113 KELLEY R.S. 8180 .1 .4 25 1.4 1.3 108 STEEL CREEK PARK 10200 .7 1.0 70 1.6 1.5 107 ----- ----- Basin wide percent of average 62 113 UPPER BEAR RIVER BUG LAKE 7950 .1 .7 14 1.4 1.5 93 HAYDEN FORK 9212 .0 .5 0 1.3 1.5 87 KELLEY R.S. 8180 .1 .4 25 1.4 1.3 108 LILY LAKE 9156 .0 .6 0 1.7 1.5 113 MONTE CRISTO 8960 .0 1.0 0 1.6 1.8 89 SALT RIVER SUMMIT 7760 -M .1 * 1.2 1.2 100 TRIAL LAKE 9992 .2 1.2 17 1.4 1.7 82 ----- ----- Basin wide percent of average 9 95 ----------------------------------------------------------------------------- -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 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.