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 MONDAY: NOVEMBER 11 , 2013 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 2.3 1.1 209* 3.6 3.3 109 BLACK BEAR 8170 6.4 4.8 133 6.7 5.9 114 BLIND BULL SUM 8650 3.1 2.6 119 3.3 3.1 106 COTTONWOOD CREEK 7670 3.4 1.8 189* 4.7 4.1 115 EAST RIM DIVIDE 7930 1.1 .8 138* 2.3 2.0 115 GRAND TARGHEE 9260 8.8 6.2 142 7.6 6.9 110 GRANITE CREEK 6770 1.6 1.0 160* 3.1 3.0 103 GRASSY LAKE 7265 3.5 2.7 130* 5.2 5.4 96 GROS VENTRE SUMMIT 8750 3.2 2.3 139 3.2 2.6 123 GUNSIGHT PASS 9820 3.3 2.0 165 3.6 2.9 124 LEWIS LAKE DIVIDE 7850 2.9 2.6 112* 4.4 5.2 85 PHILLIPS BENCH 8200 3.6 2.5 144* 4.7 4.0 118 SALT RIVER SUMMIT 7760 1.2 .7 171* 3.1 2.6 119 SNAKE RIVER STATION 6920 2.0 1.0 200* 3.4 3.8 89 SPRING CREEK DIVIDE 9000 2.9 2.6 112 3.5 3.7 95 THUMB DIVIDE 7980 1.5 1.6 94 2.7 3.3 82 TOGWOTEE PASS 9580 5.7 3.9 146 4.8 4.2 114 TWO OCEAN PLATEAU 9240 6.2 4.9 127 4.9 4.8 102 WILLOW CREEK 8380 4.0 2.4 167* 7.1 5.6 127 YOUNTS PEAK 8350 -M 2.4 * -M 3.2 * ----- ----- Basin Index (%) 140* 107 MADISON-GALLATIN BLACK BEAR 8170 6.4 4.8 133 6.7 5.9 114 CANYON 7870 1.9 1.5 127 3.3 3.0 110 MADISON PLATEAU 7750 2.3 2.3 100 4.2 4.2 100 WEST YELLOWSTONE 6700 1.0 .7 143* 2.2 2.6 85 WHISKEY CREEK 6800 1.6 1.3 123* 2.8 3.4 82 ----- ----- Basin Index (%) 125 101 YELLOWSTONE BEARTOOTH LAKE 9360 4.7 4.0 118 3.6 3.3 109 BURNT MTN 5880 1.6 .0 * 6.2 4.0 155 CANYON 7870 1.9 1.5 127 3.3 3.0 110 COLE CREEK 7850 5.0 3.3 152 4.3 3.8 113 EVENING STAR 9200 6.2 3.9 159 6.2 5.0 124 FISHER CREEK 9100 6.7 4.7 143 5.7 5.4 106 NORTHEAST ENTRANCE 7350 1.0 .5 200* 2.1 2.6 81 PARKER PEAK 9400 6.1 3.7 165 5.3 3.6 147 SYLVAN LAKE 8420 4.1 2.8 146 5.6 4.4 127 THUMB DIVIDE 7980 1.5 1.6 94 2.7 3.3 82 TWO OCEAN PLATEAU 9240 6.2 4.9 127 4.9 4.8 102 WHITE MILL 8700 5.1 3.3 155 4.3 4.3 100 WOLVERINE 7650 .9 .6 150* 2.3 2.6 88 ----- ----- Basin Index (%) 147 113 WIND RIVER BURROUGHS CREEK 8750 -M 1.8 * -M 2.9 * CASTLE CREEK 8400 .5 -M * 2.3 -M * COLD SPRINGS 9630 2.9 1.4 207 4.1 2.5 164 DEER PARK 9700 3.0 2.5 120 3.6 4.0 90 HOBBS PARK 10100 4.3 2.7 159 4.3 3.0 143 KIRWIN 9550 4.1 2.3 178 3.3 2.7 122 LITTLE WARM 9370 3.2 1.8 178 4.1 2.7 152 OWL CREEK 8975 2.2 1.1 200 2.4 1.6 150 SOUTH PASS 9040 2.4 2.1 114 3.3 3.4 97 ST. LAWRENCE ALT 8620 1.6 1.1 145 4.1 2.3 178 TOGWOTEE PASS 9580 5.7 3.9 146 4.8 4.2 114 TOWNSEND CREEK 8700 1.7 1.4 121 3.3 2.9 114 ----- ----- Basin Index (%) 153 127 BIGHORN BASIN BALD MTN. 9380 6.2 4.0 155 5.0 3.6 139 BEAR TRAP MEADOW 8200 2.7 .8 338 4.2 2.3 183 BONE SPRINGS DIV 9350 4.1 3.5 117 3.7 3.5 106 GRAVE SPRINGS 8550 3.8 1.3 292 4.5 2.8 161 KIRWIN 9550 4.1 2.3 178 3.3 2.7 122 MARQUETTE 8760 3.6 -M * 4.5 -M * MIDDLE POWDER 7760 5.3 1.5 353 5.4 3.2 169 OWL CREEK 8975 2.2 1.1 200 2.4 1.6 150 POWDER RIVER PASS 9480 3.7 1.8 206 4.1 2.8 146 SHELL CREEK 9580 4.4 3.6 122 3.6 3.2 112 TIMBER CREEK 7950 2.3 .9 256 3.9 2.5 156 ----- ----- Basin Index (%) 187 142 SHOSHONE RIVER BLACKWATER 9780 6.6 3.9 169 4.3 4.1 105 EVENING STAR 9200 6.2 3.9 159 6.2 5.0 124 MARQUETTE 8760 3.6 -M * 4.5 -M * SYLVAN ROAD 7120 2.0 1.0 200* 4.4 3.4 129 YOUNTS PEAK 8350 -M 2.4 * -M 3.2 * ----- ----- Basin Index (%) 168* 119 POWDER RIVER BEAR TRAP MEADOW 8200 2.7 .8 338 4.2 2.3 183 CLOUD PEAK RESERVOIR 9860 4.1 2.6 158 5.2 3.5 149 GRAVE SPRINGS 8550 3.8 1.3 292 4.5 2.8 161 HANSEN SAWMILL 8360 3.0 .9 333 4.2 2.3 183 MIDDLE POWDER 7760 5.3 1.5 353 5.4 3.2 169 POWDER RIVER PASS 9480 3.7 1.8 206 4.1 2.8 146 SOLDIER PARK 8720 2.2 -M * 4.1 -M * ----- ----- Basin Index (%) 254 163 TONGUE RIVER BIG GOOSE 7990 2.7 1.3 208 5.0 3.0 167 BONE SPRINGS DIV 9350 4.1 3.5 117 3.7 3.5 106 BURGESS JUNCTION 7880 3.2 1.8 178 5.0 3.1 161 DOME LAKE 8880 1.9 2.5 76 4.2 3.5 120 LITTLE GOOSE 8870 3.4 -M * 5.8 -M * SUCKER CREEK 8880 4.6 2.2 209 5.8 3.5 166 TIE CREEK 6870 1.5 .3 500* 4.9 3.2 153 ----- ----- Basin Index (%) 155 144 BELLE FOURCHE COLE CANYON 5910 1.3 .2 650* 7.4 2.7 274 ----- ----- Basin Index (%) 650* 274 CHEYENNE RIVER BASIN BLIND PARK 6890 2.1 1.0 210 8.0 3.4 235 NORTH RAPID CREEK 6130 3.1 .8 388 7.9 3.0 263 ----- ----- Basin Index (%) 289 248 UPPER N. PLATTE ARAPAHO RIDGE 10960 4.3 3.5 123 4.9 4.5 109 BLACKHALL MTN 9820 5.4 -M * 7.1 -M * COLUMBINE 9160 2.5 1.8 139* 5.1 4.1 124 DIVIDE PEAK 8880 3.4 2.4 142 6.5 4.3 151 JOE WRIGHT 10120 2.9 3.8 76 6.7 5.1 131 LAPRELE CREEK 8375 1.1 1.2 92 3.3 2.7 122 MED BOW 10500 6.2 -M * 7.8 -M * NORTH FRENCH CREEK 10130 6.3 3.8 166 8.0 4.7 170 NEVER SUMMER 10280 4.1 3.0 137 4.8 -M * OLD BATTLE 10000 5.8 4.3 135 7.0 6.0 117 RAWAH 9020 2.5 1.0 250* 5.4 3.2 169 SAGE CREEK BASIN 7850 1.3 1.2 108* 3.9 3.0 130 SAND LAKE 10050 5.9 4.1 144 6.6 4.5 147 SOUTH BRUSH CREEK 8440 2.9 1.1 264* 5.2 3.2 162 TOWER 10500 8.5 6.4 133 9.4 6.8 138 WEBBER SPRINGS 9250 3.0 2.3 130* 5.2 4.6 113 WILLOW CREEK PASS 9540 3.1 1.9 163 3.6 2.8 129 ZIRKEL 9340 2.4 1.8 133* 5.3 5.4 98 ----- ----- Basin Index (%) 138 133 SWEETWATER DEER PARK 9700 3.0 2.5 120 3.6 4.0 90 LARSEN CREEK 9000 .2 -M * 2.4 -M * SOUTH PASS 9040 2.4 2.1 114 3.3 3.4 97 ----- ----- Basin Index (%) 117 93 LOWER N. PLATTE CASPER MTN. 7900 6.9 1.7 406 6.8 3.7 184 LAPRELE CREEK 8375 1.1 1.2 92 3.3 2.7 122 RENO HILL 8400 6.2 2.2 282 8.0 3.5 229 WINDY PEAK 7900 1.1 .9 122 3.5 2.5 140 ----- ----- Basin Index (%) 255 174 LARAMIE RIVER BROOKLYN LAKE 10240 2.9 2.2 132* 4.0 3.5 114 CINNABAR PARK 9574 3.7 2.5 148 5.2 3.9 133 CROW CREEK 8330 1.3 .6 217* 3.7 2.4 154 DEADMAN HILL 10220 4.2 2.6 162 5.1 3.4 150 RAWAH 9020 2.5 1.0 250* 5.4 3.2 169 ROACH 9700 3.1 2.1 148 4.9 3.5 140 ----- ----- Basin Index (%) 161 142 S. PLATTE BLACK MOUNTAIN 8920 2.2 -M * 3.5 -M * CROW CREEK 8330 1.3 .6 217* 3.7 2.4 154 DEADMAN HILL 10220 4.2 2.6 162 5.1 3.4 150 ----- ----- Basin Index (%) 172* 152 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 2.0 .4 500* 4.6 3.0 153 DIVIDE PEAK 8880 3.4 2.4 142 6.5 4.3 151 ELK RIVER 8700 1.9 .7 271* 4.8 3.5 137 LITTLE SNAKE RIVER 8915 2.9 1.6 181* 7.1 5.7 125 OLD BATTLE 10000 5.8 4.3 135 7.0 6.0 117 SAGE CREEK BASIN 7850 1.3 1.2 108* 3.9 3.0 130 SANDSTONE RS 8150 1.6 .8 200* 5.0 3.4 147 WHISKEY PARK 8950 5.3 2.3 230* 7.7 4.4 175 ----- ----- Basin Index (%) 177* 140 UPPER GREEN RIVER BIG SANDY OPENING 9080 1.9 2.5 76 2.1 2.6 81 BLIND BULL SUM 8650 3.1 2.6 119 3.3 3.1 106 EAST RIM DIVIDE 7930 1.1 .8 138* 2.3 2.0 115 ELKHART PARK G.S. 9400 2.3 1.8 128 2.8 2.7 104 GROS VENTRE SUMMIT 8750 3.2 2.3 139 3.2 2.6 123 GUNSIGHT PASS 9820 3.3 2.0 165 3.6 2.9 124 KENDALL R.S. 7740 -M 1.2 * -M 2.4 * LOOMIS PARK 8240 1.9 1.6 119 3.2 2.8 114 NEW FORK LAKE 8340 1.1 1.3 85 1.4 2.1 67 POCKET CREEK 9360 3.2 -M * 2.9 -M * SNIDER BASIN 8060 1.3 1.0 130* 2.2 2.2 100 SPRING CREEK DIVIDE 9000 2.9 2.6 112 3.5 3.7 95 TRIPLE PEAK 8500 2.7 2.3 117 3.9 3.8 103 ----- ----- Basin Index (%) 119 103 LOWER GREEN RIVER BLACKS FORK JCT 8870 .0 -M * 2.7 -M * BUCK PASTURE 9700 1.1 -M * 3.6 -M * EF BLACKS FORK GS 9360 1.0 -M * 2.8 -M * HAMS FORK 7840 .4 .8 50* 2.7 2.1 129 HEWINTA 9519 .0 .7 0* 2.9 3.0 97 HICKERSON PARK 9145 1.8 .8 225 2.9 2.7 107 HOLE-IN-ROCK 9150 .3 .8 38 2.6 2.6 100 INDIAN CREEK 9425 2.2 3.1 71 3.4 3.5 97 KELLEY R.S. 8180 1.5 1.3 115* 3.0 3.0 100 SPIRIT LK 10235 1.9 -M * 3.8 -M * STEEL CREEK PARK 10200 .2 2.4 8 3.5 3.3 106 ----- ----- Basin Index (%) 65* 104 UPPER BEAR RIVER BEAR RIVER RS 8777 .2 -M * 2.7 -M * BUG LAKE 7950 1.3 1.3 100* 2.4 3.3 73 BURTS MILLER RANCH 8000 .2 -M * 1.6 -M * CHALK CREEK #1 8993 2.9 2.7 107 4.2 4.6 91 HAYDEN FORK 9212 .7 1.1 64* 3.7 3.8 97 KELLEY R.S. 8180 1.5 1.3 115* 3.0 3.0 100 LILY LAKE 9156 .8 1.3 62 3.7 3.5 106 MONTE CRISTO 8960 1.8 1.7 106* 3.3 4.2 79 SALT RIVER SUMMIT 7760 1.2 .7 171* 3.1 2.6 119 ----- ----- Basin Index (%) 101* 94 ----------------------------------------------------------------------------- -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.