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: NOVEMBER 5 , 2013 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 .9 .4 225* 2.5 2.4 104 BLACK BEAR 8170 5.3 3.5 151* 5.5 4.6 120 BLIND BULL SUM 8650 1.8 1.9 95* 2.4 2.4 100 COTTONWOOD CREEK 7670 2.7 1.2 225* 4.1 3.2 128 EAST RIM DIVIDE 7930 .6 .5 120* 1.7 1.6 106 GRAND TARGHEE 9260 5.7 5.3 108 5.5 5.9 93 GRANITE CREEK 6770 .7 .5 140* 2.0 2.3 87 GRASSY LAKE 7265 2.3 1.5 153* 3.7 4.1 90 GROS VENTRE SUMMIT 8750 2.7 1.9 142 2.6 2.1 124 GUNSIGHT PASS 9820 2.8 1.3 215* 2.9 2.4 121 LEWIS LAKE DIVIDE 7850 1.3 1.6 81* 2.6 3.9 67 PHILLIPS BENCH 8200 2.7 1.6 169* 3.7 2.9 128 SALT RIVER SUMMIT 7760 .9 .4 225* 2.8 2.1 133 SNAKE RIVER STATION 6920 1.1 .4 275* 2.4 3.0 80 SPRING CREEK DIVIDE 9000 2.1 1.5 140* 2.7 2.8 96 THUMB DIVIDE 7980 .7 .8 88* 1.9 2.6 73 TOGWOTEE PASS 9580 4.7 3.1 152 3.7 3.3 112 TWO OCEAN PLATEAU 9240 4.8 3.8 126 3.6 3.7 97 WILLOW CREEK 8380 3.0 1.5 200* 6.0 4.4 136 YOUNTS PEAK 8350 -M 1.7 * -M 2.6 * ----- ----- Basin Index (%) 143* 104 MADISON-GALLATIN BLACK BEAR 8170 5.3 3.5 151* 5.5 4.6 120 CANYON 7870 1.8 1.0 180* 3.0 2.3 130 MADISON PLATEAU 7750 1.8 1.8 100* 3.7 3.4 109 WEST YELLOWSTONE 6700 .6 .2 300* 1.9 2.2 86 WHISKEY CREEK 6800 1.1 .8 138* 2.4 2.8 86 ----- ----- Basin Index (%) 145* 108 YELLOWSTONE BEARTOOTH LAKE 9360 3.6 3.3 109 2.3 2.7 85 BURNT MTN 5880 1.8 .0 * 6.0 3.6 167 CANYON 7870 1.8 1.0 180* 3.0 2.3 130 COLE CREEK 7850 4.9 2.9 169 4.2 3.3 127 EVENING STAR 9200 4.6 2.9 159 4.3 3.8 113 FISHER CREEK 9100 4.6 3.3 139* 3.7 4.2 88 NORTHEAST ENTRANCE 7350 .7 .1 700* 1.5 2.0 75 PARKER PEAK 9400 5.0 3.0 167 4.2 3.0 140 SYLVAN LAKE 8420 3.2 2.1 152 4.6 3.5 131 THUMB DIVIDE 7980 .7 .8 88* 1.9 2.6 73 TWO OCEAN PLATEAU 9240 4.8 3.8 126 3.6 3.7 97 WHITE MILL 8700 3.8 2.6 146 2.8 3.4 82 WOLVERINE 7650 .6 .2 300* 1.7 2.1 81 ----- ----- Basin Index (%) 154 109 WIND RIVER BURROUGHS CREEK 8750 -M 1.4 * -M 2.3 * CASTLE CREEK 8400 .1 -M * 1.8 -M * COLD SPRINGS 9630 2.5 1.1 227 4.1 2.1 195 DEER PARK 9700 2.8 1.8 156 2.9 3.5 83 HOBBS PARK 10100 3.9 2.2 177 3.9 2.6 150 KIRWIN 9550 3.5 1.9 184 2.4 2.3 104 LITTLE WARM 9370 2.7 1.4 193 3.3 2.2 150 OWL CREEK 8975 1.9 .9 211 2.2 1.4 157 SOUTH PASS 9040 2.0 1.5 133* 2.8 2.8 100 ST. LAWRENCE ALT 8620 1.1 1.0 110 3.2 2.0 160 TOGWOTEE PASS 9580 4.7 3.1 152 3.7 3.3 112 TOWNSEND CREEK 8700 1.4 1.1 127 2.5 2.6 96 ----- ----- Basin Index (%) 166 125 BIGHORN BASIN BALD MTN. 9380 5.7 3.5 163 4.3 3.1 139 BEAR TRAP MEADOW 8200 2.3 .7 329 3.8 2.0 190 BONE SPRINGS DIV 9350 3.7 3.1 119 3.2 3.1 103 GRAVE SPRINGS 8550 3.6 1.0 360 4.5 2.5 180 KIRWIN 9550 3.5 1.9 184 2.4 2.3 104 MARQUETTE 8760 3.3 -M * 4.3 -M * MIDDLE POWDER 7760 5.3 1.2 442* 5.1 2.8 182 OWL CREEK 8975 1.9 .9 211 2.2 1.4 157 POWDER RIVER PASS 9480 3.6 1.6 225 3.6 2.4 150 SHELL CREEK 9580 4.2 3.2 131 3.4 2.7 126 TIMBER CREEK 7950 2.1 .8 262 3.7 2.3 161 ----- ----- Basin Index (%) 201 147 SHOSHONE RIVER BLACKWATER 9780 5.1 3.2 159 2.9 3.3 88 EVENING STAR 9200 4.6 2.9 159 4.3 3.8 113 MARQUETTE 8760 3.3 -M * 4.3 -M * SYLVAN ROAD 7120 1.4 .4 350* 3.6 2.7 133 YOUNTS PEAK 8350 -M 1.7 * -M 2.6 * ----- ----- Basin Index (%) 171* 110 POWDER RIVER BEAR TRAP MEADOW 8200 2.3 .7 329 3.8 2.0 190 CLOUD PEAK RESERVOIR 9860 3.5 2.2 159 4.2 3.0 140 GRAVE SPRINGS 8550 3.6 1.0 360 4.5 2.5 180 HANSEN SAWMILL 8360 2.6 .7 371 3.9 2.0 195 MIDDLE POWDER 7760 5.3 1.2 442* 5.1 2.8 182 POWDER RIVER PASS 9480 3.6 1.6 225 3.6 2.4 150 SOLDIER PARK 8720 1.8 -M * 3.7 -M * ----- ----- Basin Index (%) 282 171 TONGUE RIVER BIG GOOSE 7990 2.3 1.1 209 4.3 2.8 154 BONE SPRINGS DIV 9350 3.7 3.1 119 3.2 3.1 103 BURGESS JUNCTION 7880 3.0 1.5 200 4.4 2.7 163 DOME LAKE 8880 1.9 2.2 86 3.8 3.1 123 LITTLE GOOSE 8870 3.2 -M * 5.3 -M * SUCKER CREEK 8880 4.3 1.8 239 5.2 3.1 168 TIE CREEK 6870 1.3 .3 433* 4.7 3.0 157 ----- ----- Basin Index (%) 165 144 BELLE FOURCHE COLE CANYON 5910 1.1 .0 * 6.8 2.4 283 ----- ----- Basin Index (%) * 283 CHEYENNE RIVER BASIN BLIND PARK 6890 1.8 .8 225 7.5 2.9 259 NORTH RAPID CREEK 6130 2.8 .4 700* 7.6 2.6 292 ----- ----- Basin Index (%) 383 275 UPPER N. PLATTE ARAPAHO RIDGE 10960 4.0 3.2 125 4.7 3.8 124 BLACKHALL MTN 9820 5.1 -M * 6.3 -M * COLUMBINE 9160 2.4 1.0 240* 5.0 3.2 156 DIVIDE PEAK 8880 3.1 1.9 163* 6.0 3.7 162 JOE WRIGHT 10120 2.8 3.2 88 6.4 4.2 152 LAPRELE CREEK 8375 .9 .7 129* 3.0 2.4 125 MED BOW 10500 5.7 -M * 7.1 -M * NORTH FRENCH CREEK 10130 -M 3.0 * -M 3.9 * NEVER SUMMER 10280 4.0 2.6 154 4.7 -M * OLD BATTLE 10000 5.2 3.1 168* 6.1 4.9 124 RAWAH 9020 2.4 .8 300* 5.1 2.9 176 SAGE CREEK BASIN 7850 1.0 .8 125* 3.8 2.8 136 SAND LAKE 10050 5.6 3.1 181* 6.1 3.7 165 SOUTH BRUSH CREEK 8440 2.7 .8 338* 4.8 2.8 171 TOWER 10500 8.2 4.8 171* 8.8 5.4 163 WEBBER SPRINGS 9250 2.6 1.5 173* 4.8 3.8 126 WILLOW CREEK PASS 9540 3.0 1.6 188 3.5 2.4 146 ZIRKEL 9340 1.9 1.6 119* 4.8 4.5 107 ----- ----- Basin Index (%) 162* 144 SWEETWATER DEER PARK 9700 2.8 1.8 156 2.9 3.5 83 LARSEN CREEK 9000 .0 -M * 2.2 -M * SOUTH PASS 9040 2.0 1.5 133* 2.8 2.8 100 ----- ----- Basin Index (%) 145* 90 LOWER N. PLATTE CASPER MTN. 7900 6.7 1.4 479* 6.4 3.2 200 LAPRELE CREEK 8375 .9 .7 129* 3.0 2.4 125 RENO HILL 8400 6.3 1.7 371 7.7 3.1 248 WINDY PEAK 7900 .9 .6 150* 3.4 2.1 162 ----- ----- Basin Index (%) 336* 190 LARAMIE RIVER BROOKLYN LAKE 10240 2.6 1.7 153* 3.7 2.8 132 CINNABAR PARK 9574 3.2 1.7 188* 4.7 3.5 134 CROW CREEK 8330 1.1 .8 138 3.6 2.3 157 DEADMAN HILL 10220 4.0 2.4 167 4.9 2.9 169 RAWAH 9020 2.4 .8 300* 5.1 2.9 176 ROACH 9700 -M 1.6 * -M 3.0 * ----- ----- Basin Index (%) 180* 153 S. PLATTE BLACK MOUNTAIN 8920 2.1 -M * 3.4 -M * CROW CREEK 8330 1.1 .8 138 3.6 2.3 157 DEADMAN HILL 10220 4.0 2.4 167 4.9 2.9 169 ----- ----- Basin Index (%) 159 163 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 1.8 .0 * 4.2 2.4 175 DIVIDE PEAK 8880 3.1 1.9 163* 6.0 3.7 162 ELK RIVER 8700 1.6 .3 533* 4.5 2.9 155 LITTLE SNAKE RIVER 8915 2.6 1.2 217* 6.6 5.2 127 OLD BATTLE 10000 5.2 3.1 168* 6.1 4.9 124 SAGE CREEK BASIN 7850 1.0 .8 125* 3.8 2.8 136 SANDSTONE RS 8150 1.4 .3 467* 4.6 2.8 164 WHISKEY PARK 8950 4.9 1.5 327* 7.2 3.5 206 ----- ----- Basin Index (%) 237* 152 UPPER GREEN RIVER BIG SANDY OPENING 9080 1.4 1.8 78 1.8 2.1 86 BLIND BULL SUM 8650 1.8 1.9 95* 2.4 2.4 100 EAST RIM DIVIDE 7930 .6 .5 120* 1.7 1.6 106 ELKHART PARK G.S. 9400 1.7 1.2 142* 2.0 2.2 91 GROS VENTRE SUMMIT 8750 2.7 1.9 142 2.6 2.1 124 GUNSIGHT PASS 9820 2.8 1.3 215* 2.9 2.4 121 KENDALL R.S. 7740 .4 .6 67* 1.5 1.9 79 LOOMIS PARK 8240 .9 .9 100* 2.4 2.2 109 NEW FORK LAKE 8340 .4 .8 50* .9 1.7 53 POCKET CREEK 9360 2.7 -M * 2.8 -M * SNIDER BASIN 8060 .9 .4 225* 1.7 1.8 94 SPRING CREEK DIVIDE 9000 2.1 1.5 140* 2.7 2.8 96 TRIPLE PEAK 8500 1.7 1.7 100* 2.8 2.8 100 ----- ----- Basin Index (%) 120* 98 LOWER GREEN RIVER BLACKS FORK JCT 8870 -M -M * 2.7 -M * BUCK PASTURE 9700 1.0 -M * 3.6 -M * EF BLACKS FORK GS 9360 .7 -M * 2.6 -M * HAMS FORK 7840 .5 .4 125* 2.6 1.7 153 HEWINTA 9519 .0 .3 0* 2.8 2.5 112 HICKERSON PARK 9145 .7 .5 140* 2.5 2.4 104 HOLE-IN-ROCK 9150 .3 .4 75* 2.3 2.3 100 INDIAN CREEK 9425 1.7 2.5 68 2.8 2.8 100 KELLEY R.S. 8180 1.3 .8 162* 2.6 2.4 108 SPIRIT LK 10235 1.9 -M * 3.7 -M * STEEL CREEK PARK 10200 -M 1.8 * 3.5 2.8 125 ----- ----- Basin Index (%) 92* 113 UPPER BEAR RIVER BEAR RIVER RS 8777 .6 -M * 2.6 -M * BUG LAKE 7950 .7 .8 88* 2.3 2.6 88 BURTS MILLER RANCH 8000 .5 -M * 1.4 -M * CHALK CREEK #1 8993 2.8 2.0 140* 4.2 3.7 114 HAYDEN FORK 9212 .8 .6 133* 3.6 3.1 116 KELLEY R.S. 8180 1.3 .8 162* 2.6 2.4 108 LILY LAKE 9156 .5 .9 56* 3.7 2.9 128 MONTE CRISTO 8960 1.6 1.0 160* 3.0 3.4 88 SALT RIVER SUMMIT 7760 .9 .4 225* 2.8 2.1 133 ----- ----- Basin Index (%) 132* 110 ----------------------------------------------------------------------------- -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.