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 WEDNESDAY: OCTOBER 26 , 2011 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 .0 .4 0* 3.4 1.6 213 COTTONWOOD CREEK 7670 .2 .6 33* 4.6 2.4 192 GRAND TARGHEE 9260 2.4 -M * 4.9 -M * GRANITE CREEK 6770 .0 .3 0* 2.4 1.4 171 GRASSY LAKE 7265 .0 .9 0* 5.1 2.6 196 GROS VENTRE SUMMIT 8750 .4 1.1 36* 1.9 1.5 127 GUNSIGHT PASS 9820 .6 -M * 2.2 -M * LEWIS LAKE DIVIDE 7850 .1 .7 14* 4.2 2.4 175 PHILLIPS BENCH 8200 .0 1.0 0* 2.4 1.8 133 SALT RIVER SUMMIT 7760 .0 .2 0* 2.1 1.5 140 SNAKE RIVER STATION 6920 .0 .3 0* 3.7 1.8 206 SPRING CREEK DIVIDE 9000 1.3 1.1 118* 3.2 2.0 160 THUMB DIVIDE 7980 .0 .5 0* 2.7 1.7 159 TOGWOTEE PASS 9580 1.4 2.0 70* 3.0 2.2 136 TWO OCEAN PLATEAU 9240 3.4 2.4 142* 3.6 2.5 144 WILLOW CREEK 8380 .0 1.3 0* 5.2 3.0 173 ----- ----- Basin wide percent of average 53* 167 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 2.1 2.2 95* 2.8 1.7 165 BLACK BEAR 8170 1.7 2.0 85* 5.1 2.7 189 CANYON 7870 .3 .4 75* 1.7 1.4 121 FISHER CREEK 9100 2.0 2.1 95* 3.9 2.6 150 MADISON PLATEAU 7750 .0 1.1 0* 3.7 2.0 185 NORTHEAST ENTRANCE 7350 .0 .2 0* 1.9 1.3 146 PARKER PEAK 9400 1.2 2.2 55* 3.3 1.9 174 SYLVAN LAKE 8420 .1 1.4 7* 3.9 2.1 186 THUMB DIVIDE 7980 .0 .5 0* 2.7 1.7 159 TWO OCEAN PLATEAU 9240 3.4 2.4 142* 3.6 2.5 144 WHISKEY CREEK 6800 .0 .4 0* 3.1 1.8 172 WHITE MILL 8700 1.1 1.5 73* 3.2 2.2 145 WOLVERINE 7650 .6 .3 200* 2.8 1.5 187 ----- ----- Basin wide percent of average 75* 164 WIND RIVER BURROUGHS CREEK 8750 .2 .7 29* 1.4 1.3 108 CASTLE CREEK 8400 .1 -M * 1.1 -M * COLD SPRINGS 9630 .3 .9 33 1.5 1.6 94 DEER PARK 9700 .8 1.8 44* 2.2 2.0 110 HOBBS PARK 10100 1.6 1.9 84 2.3 1.7 135 LITTLE WARM 9370 .0 .9 0* 1.4 1.4 100 SOUTH PASS 9040 .2 1.3 15* 1.9 1.7 112 ST. LAWRENCE ALT 8620 .0 .7 0* 1.1 1.4 79 TOGWOTEE PASS 9580 1.4 2.0 70* 3.0 2.2 136 TOWNSEND CREEK 8700 .1 .9 11* 2.4 1.8 133 ----- ----- Basin wide percent of average 41* 114 BIGHORN BASIN BALD MTN. 9380 3.3 2.2 150* 3.4 2.0 170 BEAR TRAP MEADOW 8200 .3 .5 60* 1.7 1.5 113 BLACKWATER 9780 3.2 2.6 123* 3.6 2.2 164 BONE SPRINGS DIV 9350 3.5 2.1 167 4.0 2.1 190 EVENING STAR 9200 1.3 2.1 62* 3.9 2.2 177 GRAVE SPRINGS 8550 .3 1.0 30* 2.0 1.8 111 KIRWIN 9550 1.6 1.5 107 2.9 1.5 193 MARQUETTE 8760 .2 -M * 3.2 1.9 168 MIDDLE POWDER 7760 .7 1.0 70* 3.9 2.2 177 OWL CREEK 8975 .5 .7 71 1.3 1.0 130 POWDER RIVER PASS 9480 1.9 1.0 190* 3.0 1.6 188 SHELL CREEK 9580 4.1 2.3 178 3.8 1.7 224 SYLVAN LAKE 8420 .1 1.4 7* 3.9 2.1 186 SYLVAN ROAD 7120 .0 .3 0* 2.0 1.6 125 TIMBER CREEK 7950 .1 .8 13 3.6 1.3 277 YOUNTS PEAK 8350 .1 1.1 9* 2.5 1.5 167 ----- ----- Basin wide percent of average 102* 173 SHOSHONE RIVER BLACKWATER 9780 3.2 2.6 123* 3.6 2.2 164 EVENING STAR 9200 1.3 2.1 62* 3.9 2.2 177 KIRWIN 9550 1.6 1.5 107 2.9 1.5 193 MARQUETTE 8760 .2 -M * 3.2 1.9 168 SYLVAN LAKE 8420 .1 1.4 7* 3.9 2.1 186 SYLVAN ROAD 7120 .0 .3 0* 2.0 1.6 125 YOUNTS PEAK 8350 .1 1.1 9* 2.5 1.5 167 ----- ----- Basin wide percent of average 70* 169 POWDER-TONGUE BEAR TRAP MEADOW 8200 .3 .5 60* 1.7 1.5 113 BIG GOOSE 7990 1.0 .7 143* 4.2 1.8 233 BONE SPRINGS DIV 9350 3.5 2.1 167 4.0 2.1 190 BURGESS JUNCTION 7880 1.2 1.2 100* 3.9 1.9 205 CLOUD PEAK RESERVOIR 9860 1.8 1.3 138* 3.4 2.2 155 DOME LAKE 8880 2.1 1.5 140 4.6 2.1 219 GRAVE SPRINGS 8550 .3 1.0 30* 2.0 1.8 111 HANSEN SAWMILL 8360 .0 .7 0 1.8 1.5 120 LITTLE GOOSE 8870 1.5 -M * 4.8 -M * MIDDLE POWDER 7760 .7 1.0 70* 3.9 2.2 177 POWDER RIVER PASS 9480 1.9 1.0 190* 3.0 1.6 188 SOLDIER PARK 8720 .0 -M * 2.6 -M * SUCKER CREEK 8880 2.5 1.0 250* 3.9 2.0 195 TIE CREEK 6870 .0 .7 0 4.4 2.2 200 ----- ----- Basin wide percent of average 120* 178 BELLE FOURCHE BLIND PARK 6890 .1 .2 50* 1.1 2.2 50 COLE CANYON 5910 .0 .8 0 1.3 1.5 87 NORTH RAPID CREEK 6130 .0 .4 0* .6 2.1 29 ----- ----- Basin wide percent of average 7* 52 UPPER N. PLATTE RIVER BLACKHALL MTN 9820 2.1 -M * 3.7 -M * CINNABAR PARK 9574 .8 1.1 73* 3.0 2.0 150 COLUMBINE 9160 .3 .4 75* 2.5 1.9 132 DIVIDE PEAK 8880 .2 1.4 14* 2.9 2.2 132 ELK RIVER 8700 .0 .4 0* 2.3 1.8 128 JOE WRIGHT 10120 .1 1.9 5* 3.2 2.8 114 NORTH FRENCH CREEK 10130 2.5 2.5 100* 3.8 2.7 141 OLD BATTLE 10000 2.2 2.3 96* 3.5 2.9 121 SAGE CREEK BASIN 7850 .0 .8 0* 1.9 1.3 146 SOUTH BRUSH CREEK 8440 .4 .5 80* 2.8 2.2 127 TOWER 10500 1.5 2.5 60* 3.4 3.1 110 WEBBER SPRINGS 9250 .4 1.3 31* 3.2 2.5 128 WILLOW CREEK PASS 9540 2.0 .9 222* 1.8 1.7 106 ----- ----- Basin wide percent of average 65* 127 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 .5 1.7 29* 3.0 1.9 158 CASPER MTN. 7900 1.1 1.3 85* 5.0 2.1 238 DEADMAN HILL 10220 2.0 1.8 111* 2.8 2.0 140 DEER PARK 9700 .8 1.8 44* 2.2 2.0 110 LAPRELE CREEK 8375 .0 .7 0* 1.9 1.5 127 RENO HILL 8400 1.2 1.4 86* 3.1 2.1 148 ROACH 9700 .9 .8 113* 2.7 1.9 142 SAND LAKE 10050 3.0 2.5 120* 4.0 2.4 167 SOUTH PASS 9040 .2 1.3 15* 1.9 1.7 112 WINDY PEAK 7900 .0 .4 0* 1.4 1.4 100 ----- ----- Basin wide percent of average 71* 147 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .0 .3 0* 1.6 1.6 100 DIVIDE PEAK 8880 .2 1.4 14* 2.9 2.2 132 OLD BATTLE 10000 2.2 2.3 96* 3.5 2.9 121 SANDSTONE RS 8150 -M .3 * 1.5 1.9 79 WHISKEY PARK 8950 .2 1.3 15* 3.2 2.4 133 ----- ----- Basin wide percent of average 49* 115 UPPER GREEN RIVER BIG SANDY OPENING 9080 .9 .9 100* 1.9 1.5 127 BLIND BULL SUM 8650 .4 1.2 33* 2.1 1.7 124 EAST RIM DIVIDE 7930 .2 .4 50* 2.0 1.1 182 ELKHART PARK G.S. 9400 .5 .6 83* 2.6 1.6 163 GROS VENTRE SUMMIT 8750 .4 1.1 36* 1.9 1.5 127 GUNSIGHT PASS 9820 .6 -M * 2.2 -M * KENDALL R.S. 7740 .0 .4 0* 2.1 1.2 175 LOOMIS PARK 8240 .0 .6 0* 2.5 1.4 179 NEW FORK LAKE 8340 .0 .4 0* 2.4 1.3 185 POCKET CREEK 9360 1.5 -M * 2.6 -M * SNIDER BASIN 8060 .1 .5 20* 1.6 1.2 133 SPRING CREEK DIVIDE 9000 1.3 1.1 118* 3.2 2.0 160 TRIPLE PEAK 8500 .2 .8 25* 2.9 1.8 161 ----- ----- Basin wide percent of average 50* 155 LOWER GREEN RIVER HAMS FORK 7840 .0 .3 0* 2.5 1.1 227 HEWINTA 9519 -M .7 * 2.8 2.0 140 HICKERSON PARK 9145 -M .3 * -M 1.4 * HOLE-IN-ROCK 9150 .7 .3 233* 3.0 1.4 214 INDIAN CREEK 9425 1.4 1.1 127* 2.9 2.0 145 KELLEY R.S. 8180 .1 .7 14* 2.8 1.7 165 STEEL CREEK PARK 10200 1.6 1.3 123* 3.4 1.9 179 ----- ----- Basin wide percent of average 103* 172 UPPER BEAR RIVER BUG LAKE 7950 .3 1.0 30* 1.6 1.9 84 HAYDEN FORK 9212 .2 .7 29* 4.1 2.0 205 KELLEY R.S. 8180 .1 .7 14* 2.8 1.7 165 LILY LAKE 9156 .0 .8 0* 2.8 2.0 140 MONTE CRISTO 8960 .0 1.2 0* 2.3 2.3 100 SALT RIVER SUMMIT 7760 .0 .2 0* 2.1 1.5 140 TRIAL LAKE 9992 .7 1.5 47* 2.5 2.2 114 ----- ----- Basin wide percent of average 21* 134 ----------------------------------------------------------------------------- -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.