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 SATURDAY: OCTOBER 26 , 2013 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 .1 .0 * 1.3 1.6 81 BLACK BEAR 8170 1.7 2.3 74* 2.0 3.1 65 BLIND BULL SUM 8650 .8 .9 89* 1.4 1.6 88 COTTONWOOD CREEK 7670 .5 .4 125* 1.6 2.1 76 EAST RIM DIVIDE 7930 .1 .0 * 1.2 1.0 120 GRAND TARGHEE 9260 2.4 4.1 59* 2.8 4.7 60 GRANITE CREEK 6770 .1 .0 * 1.1 1.5 73 GRASSY LAKE 7265 .2 .5 40* 1.5 2.7 56 GROS VENTRE SUMMIT 8750 2.2 1.4 157 2.1 1.4 150 GUNSIGHT PASS 9820 2.2 .8 275* 2.5 1.8 139 LEWIS LAKE DIVIDE 7850 .0 .4 0* 1.3 2.6 50 PHILLIPS BENCH 8200 .6 .5 120* 1.5 1.9 79 SALT RIVER SUMMIT 7760 .0 .0 * 1.4 1.4 100 SNAKE RIVER STATION 6920 .0 .0 * 1.0 2.2 45 SPRING CREEK DIVIDE 9000 .6 .8 75* 1.1 1.7 65 THUMB DIVIDE 7980 .1 .2 50* 1.2 1.8 67 TOGWOTEE PASS 9580 3.4 2.3 148* 2.4 2.2 109 TWO OCEAN PLATEAU 9240 3.2 2.7 119* 2.3 2.5 92 WILLOW CREEK 8380 .0 .5 0* 2.4 2.8 86 YOUNTS PEAK 8350 -M 1.2 * -M 1.8 * ----- ----- Basin Index (%) 102* 79 MADISON-GALLATIN BLACK BEAR 8170 1.7 2.3 74* 2.0 3.1 65 CANYON 7870 .5 .3 167* 1.6 1.6 100 MADISON PLATEAU 7750 .0 .9 0* 1.7 2.3 74 WEST YELLOWSTONE 6700 .2 .0 * 1.1 1.6 69 WHISKEY CREEK 6800 .2 .2 100* 1.2 1.9 63 ----- ----- Basin Index (%) 70* 72 YELLOWSTONE BEARTOOTH LAKE 9360 2.6 2.0 130* 1.4 1.8 78 BURNT MTN 5880 1.4 .0 * 5.2 2.8 186 CANYON 7870 .5 .3 167* 1.6 1.6 100 COLE CREEK 7850 4.6 2.0 230 3.9 2.6 150 EVENING STAR 9200 3.1 1.9 163* 2.5 2.6 96 FISHER CREEK 9100 3.2 2.0 160* 2.4 2.8 86 NORTHEAST ENTRANCE 7350 .0 .0 * .8 1.4 57 PARKER PEAK 9400 3.2 2.1 152* 2.2 2.2 100 SYLVAN LAKE 8420 1.1 1.2 92* 2.0 2.4 83 THUMB DIVIDE 7980 .1 .2 50* 1.2 1.8 67 TWO OCEAN PLATEAU 9240 3.2 2.7 119* 2.3 2.5 92 WHITE MILL 8700 2.4 1.7 141* 1.8 2.2 82 WOLVERINE 7650 .0 .0 * 1.2 1.6 75 ----- ----- Basin Index (%) 158* 101 WIND RIVER BURROUGHS CREEK 8750 -M .7 * -M 1.5 * CASTLE CREEK 8400 .1 -M * 1.8 -M * COLD SPRINGS 9630 2.3 .4 575* 3.4 1.6 212 DEER PARK 9700 2.3 1.5 153* 2.7 2.4 112 HOBBS PARK 10100 3.4 1.5 227* 3.4 2.0 170 KIRWIN 9550 3.4 1.3 262 2.6 1.6 162 LITTLE WARM 9370 2.3 .9 256* 3.1 1.6 194 OWL CREEK 8975 1.8 .5 360* 2.0 1.0 200 SOUTH PASS 9040 1.8 .9 200* 2.6 1.9 137 ST. LAWRENCE ALT 8620 1.2 .4 300* 3.0 1.5 200 TOGWOTEE PASS 9580 3.4 2.3 148* 2.4 2.2 109 TOWNSEND CREEK 8700 -M .5 * -M 1.9 * ----- ----- Basin Index (%) 226* 159 BIGHORN BASIN BALD MTN. 9380 5.1 2.5 204 3.7 2.3 161 BEAR TRAP MEADOW 8200 2.3 .3 767* 3.5 1.4 250 BONE SPRINGS DIV 9350 3.3 2.1 157 3.0 2.3 130 GRAVE SPRINGS 8550 3.3 .7 471* 3.9 1.9 205 KIRWIN 9550 3.4 1.3 262 2.6 1.6 162 MARQUETTE 8760 3.5 -M * 4.2 -M * MIDDLE POWDER 7760 5.4 .7 771* 5.0 2.0 250 OWL CREEK 8975 1.8 .5 360* 2.0 1.0 200 POWDER RIVER PASS 9480 3.1 1.0 310* 3.3 1.8 183 SHELL CREEK 9580 3.7 2.5 148 2.9 2.0 145 TIMBER CREEK 7950 2.0 .3 667* 3.5 1.7 206 ----- ----- Basin Index (%) 281* 186 SHOSHONE RIVER BLACKWATER 9780 4.4 2.2 200* 2.3 2.3 100 EVENING STAR 9200 3.1 1.9 163* 2.5 2.6 96 MARQUETTE 8760 3.5 -M * 4.2 -M * SYLVAN ROAD 7120 .0 .0 * 2.0 1.9 105 YOUNTS PEAK 8350 -M 1.2 * -M 1.8 * ----- ----- Basin Index (%) 183* 100 POWDER RIVER BEAR TRAP MEADOW 8200 2.3 .3 767* 3.5 1.4 250 CLOUD PEAK RESERVOIR 9860 3.4 1.5 227* 4.3 2.4 179 GRAVE SPRINGS 8550 3.3 .7 471* 3.9 1.9 205 HANSEN SAWMILL 8360 2.2 .2 1100* 3.5 1.6 219 MIDDLE POWDER 7760 5.4 .7 771* 5.0 2.0 250 POWDER RIVER PASS 9480 3.1 1.0 310* 3.3 1.8 183 SOLDIER PARK 8720 1.8 -M * 3.3 -M * ----- ----- Basin Index (%) 448* 212 TONGUE RIVER BIG GOOSE 7990 2.4 .8 300* 4.1 2.2 186 BONE SPRINGS DIV 9350 3.3 2.1 157 3.0 2.3 130 BURGESS JUNCTION 7880 2.9 .9 322* 4.2 2.0 210 DOME LAKE 8880 2.4 1.3 185 3.7 2.3 161 LITTLE GOOSE 8870 3.2 -M * 5.1 -M * SUCKER CREEK 8880 4.2 1.2 350* 5.1 2.3 222 TIE CREEK 6870 1.4 .0 * 4.4 2.4 183 ----- ----- Basin Index (%) 263* 181 BELLE FOURCHE COLE CANYON 5910 1.7 .0 * 6.7 1.6 419 ----- ----- Basin Index (%) * 419 CHEYENNE RIVER BASIN BLIND PARK 6890 2.1 .0 * 7.0 1.9 368 NORTH RAPID CREEK 6130 3.1 .0 * 7.3 1.7 429 ----- ----- Basin Index (%) * 397 UPPER N. PLATTE ARAPAHO RIDGE 10960 2.6 2.3 113 3.3 2.7 122 BLACKHALL MTN 9820 3.9 -M * 4.9 -M * COLUMBINE 9160 1.2 .2 600* 3.4 2.2 155 DIVIDE PEAK 8880 2.3 1.0 230* 4.8 2.6 185 JOE WRIGHT 10120 1.4 1.8 78* 4.7 2.8 168 LAPRELE CREEK 8375 .8 .2 400* 2.7 1.6 169 MED BOW 10500 4.1 -M * 5.3 -M * NORTH FRENCH CREEK 10130 -M 2.3 * -M 2.7 * NEVER SUMMER 10280 2.7 1.7 159* 3.5 -M * OLD BATTLE 10000 3.6 2.0 180* 4.4 3.4 129 RAWAH 9020 1.6 .1 1600* 4.1 1.9 216 SAGE CREEK BASIN 7850 .2 .0 * 2.9 2.0 145 SAND LAKE 10050 4.3 2.0 215* 5.0 2.6 192 SOUTH BRUSH CREEK 8440 2.2 .3 733* 4.3 1.9 226 TOWER 10500 5.0 2.5 200* 5.6 3.5 160 WEBBER SPRINGS 9250 1.6 .8 200* 3.7 2.6 142 WILLOW CREEK PASS 9540 2.2 .7 314* 2.7 1.6 169 ZIRKEL 9340 1.0 .4 250* 3.0 3.4 88 ----- ----- Basin Index (%) 204* 157 SWEETWATER DEER PARK 9700 2.3 1.5 153* 2.7 2.4 112 LARSEN CREEK 9000 .0 -M * 1.8 -M * SOUTH PASS 9040 1.8 .9 200* 2.6 1.9 137 ----- ----- Basin Index (%) 171* 123 LOWER N. PLATTE CASPER MTN. 7900 6.5 .7 929* 6.6 2.3 287 LAPRELE CREEK 8375 .8 .2 400* 2.7 1.6 169 RENO HILL 8400 6.4 1.0 640* 7.7 2.1 367 WINDY PEAK 7900 .4 .0 * 2.6 1.4 186 ----- ----- Basin Index (%) 742* 265 LARAMIE RIVER BROOKLYN LAKE 10240 1.6 1.0 160* 2.7 2.0 135 CINNABAR PARK 9574 2.0 .9 222* 3.3 2.4 138 CROW CREEK 8330 .5 .0 * 2.8 1.6 175 DEADMAN HILL 10220 2.9 1.7 171* 3.8 2.0 190 RAWAH 9020 1.6 .1 1600* 4.1 1.9 216 ROACH 9700 -M .7 * -M 2.0 * ----- ----- Basin Index (%) 232* 169 S. PLATTE BLACK MOUNTAIN 8920 1.4 -M * 2.7 -M * CROW CREEK 8330 .5 .0 * 2.8 1.6 175 DEADMAN HILL 10220 2.9 1.7 171* 3.8 2.0 190 ----- ----- Basin Index (%) 200* 183 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .8 .0 * 3.1 1.5 207 DIVIDE PEAK 8880 2.3 1.0 230* 4.8 2.6 185 ELK RIVER 8700 .3 .0 * 3.1 2.1 148 LITTLE SNAKE RIVER 8915 1.5 .7 214* 4.7 4.0 118 OLD BATTLE 10000 3.6 2.0 180* 4.4 3.4 129 SAGE CREEK BASIN 7850 .2 .0 * 2.9 2.0 145 SANDSTONE RS 8150 .8 .0 * 3.4 1.8 189 WHISKEY PARK 8950 3.1 .6 517* 5.1 2.3 222 ----- ----- Basin Index (%) 293* 160 UPPER GREEN RIVER BIG SANDY OPENING 9080 1.3 1.0 130* 1.5 1.5 100 BLIND BULL SUM 8650 .8 .9 89* 1.4 1.6 88 EAST RIM DIVIDE 7930 .1 .0 * 1.2 1.0 120 ELKHART PARK G.S. 9400 1.3 .7 186* 2.0 1.5 133 GROS VENTRE SUMMIT 8750 2.2 1.4 157 2.1 1.4 150 GUNSIGHT PASS 9820 2.2 .8 275* 2.5 1.8 139 KENDALL R.S. 7740 .0 .0 * 1.3 1.2 108 LOOMIS PARK 8240 .2 .2 100* 1.4 1.4 100 NEW FORK LAKE 8340 .3 .2 150* .8 1.0 80 POCKET CREEK 9360 2.3 -M * 2.5 -M * SNIDER BASIN 8060 .1 .0 * .9 1.1 82 SPRING CREEK DIVIDE 9000 .6 .8 75* 1.1 1.7 65 TRIPLE PEAK 8500 1.2 .6 200* 1.3 1.9 68 ----- ----- Basin Index (%) 156* 102 LOWER GREEN RIVER BLACKS FORK JCT 8870 -M -M * 1.8 -M * BUCK PASTURE 9700 .0 -M * 2.2 -M * EF BLACKS FORK GS 9360 .1 -M * 1.8 -M * HAMS FORK 7840 .0 .0 * 1.5 1.2 125 HEWINTA 9519 .0 .0 * 2.0 1.7 118 HICKERSON PARK 9145 .2 .0 * 1.5 1.6 94 HOLE-IN-ROCK 9150 .0 .0 * 1.3 1.6 81 INDIAN CREEK 9425 .6 1.3 46* 1.6 1.8 89 KELLEY R.S. 8180 .5 .3 167* 1.6 1.5 107 SPIRIT LK 10235 .6 -M * 2.0 -M * STEEL CREEK PARK 10200 .1 1.1 9* 2.4 1.9 126 ----- ----- Basin Index (%) 52* 105 UPPER BEAR RIVER BEAR RIVER RS 8777 .0 -M * 1.7 -M * BUG LAKE 7950 .5 .0 * 1.4 1.8 78 BURTS MILLER RANCH 8000 .2 -M * .9 -M * CHALK CREEK #1 8993 1.3 1.0 130* 2.4 2.5 96 HAYDEN FORK 9212 .1 .0 * 2.5 2.1 119 KELLEY R.S. 8180 .5 .3 167* 1.6 1.5 107 LILY LAKE 9156 .0 .5 0* 2.5 2.0 125 MONTE CRISTO 8960 .2 .0 * 1.5 2.3 65 SALT RIVER SUMMIT 7760 .0 .0 * 1.4 1.4 100 ----- ----- Basin Index (%) 144* 98 ----------------------------------------------------------------------------- -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. ---------------------------------------------------------------------------- -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.