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 29 , 2013 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 .2 .1 200* 1.4 1.8 78 BLACK BEAR 8170 1.9 2.6 73* 2.4 3.5 69 BLIND BULL SUM 8650 1.1 1.1 100* 1.9 1.8 106 COTTONWOOD CREEK 7670 1.1 .6 183* 2.2 2.4 92 EAST RIM DIVIDE 7930 .2 .1 200* 1.4 1.2 117 GRAND TARGHEE 9260 3.0 4.3 70* 3.5 4.9 71 GRANITE CREEK 6770 .2 .0 * 1.4 1.7 82 GRASSY LAKE 7265 .5 .9 56* 1.9 3.0 63 GROS VENTRE SUMMIT 8750 2.4 1.6 150 2.3 1.6 144 GUNSIGHT PASS 9820 2.3 .9 256* 2.5 2.0 125 LEWIS LAKE DIVIDE 7850 .2 .7 29* 1.5 2.9 52 PHILLIPS BENCH 8200 1.5 .9 167* 2.4 2.1 114 SALT RIVER SUMMIT 7760 .8 .0 * 2.1 1.6 131 SNAKE RIVER STATION 6920 .2 .1 200* 1.1 2.3 48 SPRING CREEK DIVIDE 9000 1.1 .9 122* 1.7 2.0 85 THUMB DIVIDE 7980 .1 .3 33* 1.3 2.0 65 TOGWOTEE PASS 9580 3.6 2.5 144* 2.6 2.4 108 TWO OCEAN PLATEAU 9240 3.3 2.9 114* 2.4 2.8 86 WILLOW CREEK 8380 .8 .7 114* 3.3 3.3 100 YOUNTS PEAK 8350 -M 1.4 * -M 2.0 * ----- ----- Basin Index (%) 116* 87 MADISON-GALLATIN BLACK BEAR 8170 1.9 2.6 73* 2.4 3.5 69 CANYON 7870 .4 .4 100* 1.7 1.8 94 MADISON PLATEAU 7750 .0 1.1 0* 1.8 2.6 69 WEST YELLOWSTONE 6700 .0 .0 * 1.2 1.7 71 WHISKEY CREEK 6800 .0 .3 0* 1.2 2.1 57 ----- ----- Basin Index (%) 52* 71 YELLOWSTONE BEARTOOTH LAKE 9360 2.7 2.4 112 1.5 2.0 75 BURNT MTN 5880 1.7 .0 * 5.7 3.1 184 CANYON 7870 .4 .4 100* 1.7 1.8 94 COLE CREEK 7850 4.8 2.5 192 4.1 2.9 141 EVENING STAR 9200 3.0 2.2 136* 2.5 2.9 86 FISHER CREEK 9100 3.3 2.4 138* 2.5 3.2 78 NORTHEAST ENTRANCE 7350 .0 .0 * .8 1.6 50 PARKER PEAK 9400 3.3 2.4 138 2.4 2.4 100 SYLVAN LAKE 8420 .7 1.4 50* 2.1 2.7 78 THUMB DIVIDE 7980 .1 .3 33* 1.3 2.0 65 TWO OCEAN PLATEAU 9240 3.3 2.9 114* 2.4 2.8 86 WHITE MILL 8700 2.4 1.9 126* 1.9 2.5 76 WOLVERINE 7650 .0 .0 * 1.3 1.7 76 ----- ----- Basin Index (%) 137* 96 WIND RIVER BURROUGHS CREEK 8750 -M .9 * -M 1.7 * CASTLE CREEK 8400 .2 -M * 2.0 -M * COLD SPRINGS 9630 2.5 .5 500* 3.8 1.8 211 DEER PARK 9700 2.7 1.6 169* 3.2 2.8 114 HOBBS PARK 10100 4.0 1.8 222 4.0 2.2 182 KIRWIN 9550 3.6 1.5 240 2.7 1.8 150 LITTLE WARM 9370 2.5 1.1 227 3.4 1.8 189 OWL CREEK 8975 2.0 .6 333 2.2 1.2 183 SOUTH PASS 9040 2.1 1.2 175* 2.8 2.2 127 ST. LAWRENCE ALT 8620 1.4 .6 233* 3.3 1.7 194 TOGWOTEE PASS 9580 3.6 2.5 144* 2.6 2.4 108 TOWNSEND CREEK 8700 -M .7 * -M 2.1 * ----- ----- Basin Index (%) 214* 156 BIGHORN BASIN BALD MTN. 9380 5.2 2.8 186 4.0 2.6 154 BEAR TRAP MEADOW 8200 2.1 .4 525* 3.6 1.6 225 BONE SPRINGS DIV 9350 3.3 2.4 138 3.0 2.6 115 GRAVE SPRINGS 8550 3.5 .8 438* 4.1 2.1 195 KIRWIN 9550 3.6 1.5 240 2.7 1.8 150 MARQUETTE 8760 3.5 -M * 4.3 -M * MIDDLE POWDER 7760 5.4 .8 675* 5.2 2.3 226 OWL CREEK 8975 2.0 .6 333 2.2 1.2 183 POWDER RIVER PASS 9480 3.2 1.2 267 3.4 2.0 170 SHELL CREEK 9580 3.9 2.7 144 3.0 2.2 136 TIMBER CREEK 7950 2.1 .4 525* 3.6 2.0 180 ----- ----- Basin Index (%) 252 171 SHOSHONE RIVER BLACKWATER 9780 4.3 2.6 165 2.4 2.6 92 EVENING STAR 9200 3.0 2.2 136* 2.5 2.9 86 MARQUETTE 8760 3.5 -M * 4.3 -M * SYLVAN ROAD 7120 .0 .1 0* 2.0 2.1 95 YOUNTS PEAK 8350 -M 1.4 * -M 2.0 * ----- ----- Basin Index (%) 149* 91 POWDER RIVER BEAR TRAP MEADOW 8200 2.1 .4 525* 3.6 1.6 225 CLOUD PEAK RESERVOIR 9860 3.6 1.7 212 4.6 2.6 177 GRAVE SPRINGS 8550 3.5 .8 438* 4.1 2.1 195 HANSEN SAWMILL 8360 2.4 .3 800* 3.8 1.7 224 MIDDLE POWDER 7760 5.4 .8 675* 5.2 2.3 226 POWDER RIVER PASS 9480 3.2 1.2 267 3.4 2.0 170 SOLDIER PARK 8720 2.0 -M * 3.6 -M * ----- ----- Basin Index (%) 388* 201 TONGUE RIVER BIG GOOSE 7990 2.3 .9 256* 4.1 2.4 171 BONE SPRINGS DIV 9350 3.3 2.4 138 3.0 2.6 115 BURGESS JUNCTION 7880 2.8 1.2 233* 4.2 2.3 183 DOME LAKE 8880 2.3 1.6 144 3.7 2.6 142 LITTLE GOOSE 8870 3.2 -M * 5.2 -M * SUCKER CREEK 8880 4.2 1.5 280 5.0 2.6 192 TIE CREEK 6870 1.2 .0 * 4.5 2.6 173 ----- ----- Basin Index (%) 212* 162 BELLE FOURCHE COLE CANYON 5910 1.1 .0 * 6.7 1.8 372 ----- ----- Basin Index (%) * 372 CHEYENNE RIVER BASIN BLIND PARK 6890 1.5 .0 * 7.0 2.1 333 NORTH RAPID CREEK 6130 2.7 .0 * 7.3 2.0 365 ----- ----- Basin Index (%) * 349 UPPER N. PLATTE ARAPAHO RIDGE 10960 2.7 2.7 100 3.3 3.0 110 BLACKHALL MTN 9820 3.9 -M * 5.2 -M * COLUMBINE 9160 .9 .3 300* 3.4 2.4 142 DIVIDE PEAK 8880 2.2 1.2 183* 4.9 3.0 163 JOE WRIGHT 10120 1.6 2.2 73* 4.8 3.2 150 LAPRELE CREEK 8375 .7 .3 233* 2.7 1.8 150 MED BOW 10500 4.0 -M * 5.3 -M * NORTH FRENCH CREEK 10130 -M 2.5 * -M 3.0 * NEVER SUMMER 10280 2.7 2.1 129* 3.5 -M * OLD BATTLE 10000 3.6 2.4 150* 4.5 3.8 118 RAWAH 9020 1.4 .2 700* 4.2 2.2 191 SAGE CREEK BASIN 7850 .0 .1 0* 2.9 2.2 132 SAND LAKE 10050 4.3 2.3 187* 5.1 2.8 182 SOUTH BRUSH CREEK 8440 2.2 .4 550* 4.3 2.2 195 TOWER 10500 4.9 2.8 175* 5.7 4.0 142 WEBBER SPRINGS 9250 1.7 1.0 170* 3.7 2.9 128 WILLOW CREEK PASS 9540 2.2 1.0 220* 2.7 1.8 150 ZIRKEL 9340 .0 .6 0* 3.1 3.5 89 ----- ----- Basin Index (%) 159* 143 SWEETWATER DEER PARK 9700 2.7 1.6 169* 3.2 2.8 114 LARSEN CREEK 9000 .0 -M * 1.9 -M * SOUTH PASS 9040 2.1 1.2 175* 2.8 2.2 127 ----- ----- Basin Index (%) 171* 120 LOWER N. PLATTE CASPER MTN. 7900 6.6 1.0 660* 6.7 2.7 248 LAPRELE CREEK 8375 .7 .3 233* 2.7 1.8 150 RENO HILL 8400 6.3 1.2 525* 7.8 2.4 325 WINDY PEAK 7900 .0 .2 0* 2.6 1.6 162 ----- ----- Basin Index (%) 504* 233 LARAMIE RIVER BROOKLYN LAKE 10240 1.7 1.2 142* 2.7 2.1 129 CINNABAR PARK 9574 2.0 1.0 200* 3.3 2.6 127 CROW CREEK 8330 .0 .0 * 2.7 1.9 142 DEADMAN HILL 10220 2.9 2.0 145 3.8 2.3 165 RAWAH 9020 1.4 .2 700* 4.2 2.2 191 ROACH 9700 -M .9 * -M 2.2 * ----- ----- Basin Index (%) 182* 150 S. PLATTE BLACK MOUNTAIN 8920 1.4 -M * 2.7 -M * CROW CREEK 8330 .0 .0 * 2.7 1.9 142 DEADMAN HILL 10220 2.9 2.0 145 3.8 2.3 165 ----- ----- Basin Index (%) 145* 155 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .7 .0 * 3.2 1.8 178 DIVIDE PEAK 8880 2.2 1.2 183* 4.9 3.0 163 ELK RIVER 8700 .0 .2 0* 3.1 2.3 135 LITTLE SNAKE RIVER 8915 .9 .7 129* 4.7 4.3 109 OLD BATTLE 10000 3.6 2.4 150* 4.5 3.8 118 SAGE CREEK BASIN 7850 .0 .1 0* 2.9 2.2 132 SANDSTONE RS 8150 .0 .0 * 3.4 2.0 170 WHISKEY PARK 8950 3.0 .7 429* 5.1 2.6 196 ----- ----- Basin Index (%) 196* 145 UPPER GREEN RIVER BIG SANDY OPENING 9080 1.6 1.2 133* 1.7 1.6 106 BLIND BULL SUM 8650 1.1 1.1 100* 1.9 1.8 106 EAST RIM DIVIDE 7930 .2 .1 200* 1.4 1.2 117 ELKHART PARK G.S. 9400 1.5 .8 188* 2.0 1.7 118 GROS VENTRE SUMMIT 8750 2.4 1.6 150 2.3 1.6 144 GUNSIGHT PASS 9820 2.3 .9 256* 2.5 2.0 125 KENDALL R.S. 7740 .1 .0 * 1.5 1.4 107 LOOMIS PARK 8240 .4 .4 100* 1.7 1.6 106 NEW FORK LAKE 8340 .4 .3 133* .8 1.3 62 POCKET CREEK 9360 2.5 -M * 2.7 -M * SNIDER BASIN 8060 .4 .1 400* 1.3 1.2 108 SPRING CREEK DIVIDE 9000 1.1 .9 122* 1.7 2.0 85 TRIPLE PEAK 8500 2.0 .9 222* 1.8 2.0 90 ----- ----- Basin Index (%) 163* 106 LOWER GREEN RIVER BLACKS FORK JCT 8870 .0 -M * 2.3 -M * BUCK PASTURE 9700 .6 -M * 2.8 -M * EF BLACKS FORK GS 9360 .6 -M * 2.3 -M * HAMS FORK 7840 .7 .0 * 2.3 1.3 177 HEWINTA 9519 .5 .0 * 2.5 1.9 132 HICKERSON PARK 9145 .8 .0 * 1.9 1.8 106 HOLE-IN-ROCK 9150 1.1 .0 * 2.0 1.9 105 INDIAN CREEK 9425 1.1 1.7 65* 2.3 2.0 115 KELLEY R.S. 8180 1.2 .4 300* 2.4 1.7 141 SPIRIT LK 10235 1.1 -M * 2.8 -M * STEEL CREEK PARK 10200 -M 1.3 * 2.9 2.2 132 ----- ----- Basin Index (%) 257* 127 UPPER BEAR RIVER BEAR RIVER RS 8777 .6 -M * 2.1 -M * BUG LAKE 7950 .4 .0 * 1.8 2.0 90 BURTS MILLER RANCH 8000 .8 -M * 1.1 -M * CHALK CREEK #1 8993 2.2 1.3 169* 3.3 2.9 114 HAYDEN FORK 9212 .7 .0 * 3.1 2.3 135 KELLEY R.S. 8180 1.2 .4 300* 2.4 1.7 141 LILY LAKE 9156 .7 .6 117* 3.3 2.3 143 MONTE CRISTO 8960 .8 .2 400* 2.1 2.6 81 SALT RIVER SUMMIT 7760 .8 .0 * 2.1 1.6 131 ----- ----- Basin Index (%) 272* 118 ----------------------------------------------------------------------------- -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.