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: NOVEMBER 6 , 2013 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 1.1 .5 220* 2.5 2.6 96 BLACK BEAR 8170 5.5 3.7 149* 5.7 4.8 119 BLIND BULL SUM 8650 1.9 2.0 95* 2.5 2.5 100 COTTONWOOD CREEK 7670 2.8 1.3 215* 4.2 3.4 124 EAST RIM DIVIDE 7930 .7 .6 117* 1.9 1.7 112 GRAND TARGHEE 9260 6.0 5.5 109 6.0 6.1 98 GRANITE CREEK 6770 .8 .6 133* 2.1 2.4 88 GRASSY LAKE 7265 2.6 1.7 153* 4.3 4.3 100 GROS VENTRE SUMMIT 8750 2.8 1.9 147 2.8 2.2 127 GUNSIGHT PASS 9820 2.9 1.4 207 3.1 2.5 124 LEWIS LAKE DIVIDE 7850 1.6 1.7 94* 3.0 4.1 73 PHILLIPS BENCH 8200 2.9 1.8 161* 3.9 3.1 126 SALT RIVER SUMMIT 7760 1.1 .4 275* 2.9 2.2 132 SNAKE RIVER STATION 6920 1.2 .5 240* 2.6 3.1 84 SPRING CREEK DIVIDE 9000 2.2 1.7 129* 2.9 2.9 100 THUMB DIVIDE 7980 1.0 1.0 100* 2.2 2.7 81 TOGWOTEE PASS 9580 4.8 3.2 150 3.9 3.5 111 TWO OCEAN PLATEAU 9240 5.0 4.1 122 3.7 3.9 95 WILLOW CREEK 8380 3.1 1.7 182* 6.1 4.6 133 YOUNTS PEAK 8350 -M 1.8 * -M 2.6 * ----- ----- Basin Index (%) 142* 106 MADISON-GALLATIN BLACK BEAR 8170 5.5 3.7 149* 5.7 4.8 119 CANYON 7870 1.8 1.0 180* 3.1 2.3 135 MADISON PLATEAU 7750 1.9 1.8 106* 3.8 3.5 109 WEST YELLOWSTONE 6700 .7 .3 233* 2.0 2.2 91 WHISKEY CREEK 6800 1.2 .9 133* 2.5 2.8 89 ----- ----- Basin Index (%) 144* 110 YELLOWSTONE BEARTOOTH LAKE 9360 3.7 3.4 109 2.6 2.8 93 BURNT MTN 5880 1.9 .0 * 6.2 3.6 172 CANYON 7870 1.8 1.0 180* 3.1 2.3 135 COLE CREEK 7850 5.1 3.0 170 4.3 3.4 126 EVENING STAR 9200 4.9 3.1 158 4.6 4.0 115 FISHER CREEK 9100 4.8 3.5 137 3.9 4.4 89 NORTHEAST ENTRANCE 7350 .8 .2 400* 1.7 2.1 81 PARKER PEAK 9400 5.3 3.1 171 4.4 3.1 142 SYLVAN LAKE 8420 3.5 2.2 159 4.9 3.6 136 THUMB DIVIDE 7980 1.0 1.0 100* 2.2 2.7 81 TWO OCEAN PLATEAU 9240 5.0 4.1 122 3.7 3.9 95 WHITE MILL 8700 4.0 2.7 148 3.1 3.5 89 WOLVERINE 7650 .7 .3 233* 1.9 2.2 86 ----- ----- Basin Index (%) 154 112 WIND RIVER BURROUGHS CREEK 8750 -M 1.5 * -M 2.4 * CASTLE CREEK 8400 .0 -M * 1.9 -M * COLD SPRINGS 9630 2.9 1.2 242 4.3 2.2 195 DEER PARK 9700 2.9 1.9 153 3.4 3.6 94 HOBBS PARK 10100 4.0 2.3 174 4.3 2.6 165 KIRWIN 9550 3.6 2.0 180 2.8 2.4 117 LITTLE WARM 9370 2.8 1.5 187 3.6 2.3 157 OWL CREEK 8975 2.0 1.0 200 2.3 1.4 164 SOUTH PASS 9040 2.2 1.6 138 3.3 2.8 118 ST. LAWRENCE ALT 8620 1.3 1.0 130 3.7 2.1 176 TOGWOTEE PASS 9580 4.8 3.2 150 3.9 3.5 111 TOWNSEND CREEK 8700 1.7 1.2 142 3.2 2.6 123 ----- ----- Basin Index (%) 167 136 BIGHORN BASIN BALD MTN. 9380 5.8 3.6 161 4.6 3.2 144 BEAR TRAP MEADOW 8200 2.5 .7 357 3.9 2.0 195 BONE SPRINGS DIV 9350 3.8 3.1 123 3.4 3.2 106 GRAVE SPRINGS 8550 3.7 1.0 370 4.5 2.6 173 KIRWIN 9550 3.6 2.0 180 2.8 2.4 117 MARQUETTE 8760 3.4 -M * 4.6 -M * MIDDLE POWDER 7760 5.3 1.3 408 5.2 2.8 186 OWL CREEK 8975 2.0 1.0 200 2.3 1.4 164 POWDER RIVER PASS 9480 3.6 1.6 225 3.8 2.5 152 SHELL CREEK 9580 4.2 3.3 127 3.5 2.8 125 TIMBER CREEK 7950 2.1 .8 262 3.8 2.4 158 ----- ----- Basin Index (%) 199 149 SHOSHONE RIVER BLACKWATER 9780 5.3 3.3 161 3.2 3.4 94 EVENING STAR 9200 4.9 3.1 158 4.6 4.0 115 MARQUETTE 8760 3.4 -M * 4.6 -M * SYLVAN ROAD 7120 1.7 .5 340* 3.9 2.8 139 YOUNTS PEAK 8350 -M 1.8 * -M 2.6 * ----- ----- Basin Index (%) 172* 115 POWDER RIVER BEAR TRAP MEADOW 8200 2.5 .7 357 3.9 2.0 195 CLOUD PEAK RESERVOIR 9860 3.8 2.2 173 4.9 3.2 153 GRAVE SPRINGS 8550 3.7 1.0 370 4.5 2.6 173 HANSEN SAWMILL 8360 2.8 .8 350 4.1 2.1 195 MIDDLE POWDER 7760 5.3 1.3 408 5.2 2.8 186 POWDER RIVER PASS 9480 3.6 1.6 225 3.8 2.5 152 SOLDIER PARK 8720 2.0 -M * 3.8 -M * ----- ----- Basin Index (%) 286 174 TONGUE RIVER BIG GOOSE 7990 2.5 1.2 208 4.6 2.8 164 BONE SPRINGS DIV 9350 3.8 3.1 123 3.4 3.2 106 BURGESS JUNCTION 7880 3.0 1.6 188 4.6 2.8 164 DOME LAKE 8880 1.9 2.3 83 3.9 3.1 126 LITTLE GOOSE 8870 3.3 -M * 5.5 -M * SUCKER CREEK 8880 4.4 1.8 244 5.4 3.1 174 TIE CREEK 6870 1.3 .3 433* 4.8 3.0 160 ----- ----- Basin Index (%) 164 148 BELLE FOURCHE COLE CANYON 5910 1.4 .0 * 7.3 2.4 304 ----- ----- Basin Index (%) * 304 CHEYENNE RIVER BASIN BLIND PARK 6890 1.9 .8 238 7.7 3.0 257 NORTH RAPID CREEK 6130 3.1 .5 620* 7.8 2.6 300 ----- ----- Basin Index (%) 385 277 UPPER N. PLATTE ARAPAHO RIDGE 10960 4.1 3.2 128 4.9 4.0 122 BLACKHALL MTN 9820 5.0 -M * 6.3 -M * COLUMBINE 9160 2.2 1.1 200* 4.8 3.3 145 DIVIDE PEAK 8880 3.2 2.0 160* 6.1 3.8 161 JOE WRIGHT 10120 2.7 3.3 82 6.6 4.3 153 LAPRELE CREEK 8375 .9 .8 112* 3.1 2.5 124 MED BOW 10500 5.6 -M * 7.1 -M * NORTH FRENCH CREEK 10130 5.5 3.1 177* 7.2 4.1 176 NEVER SUMMER 10280 3.8 2.7 141 4.8 -M * OLD BATTLE 10000 5.2 3.2 162* 6.1 5.1 120 RAWAH 9020 2.7 .8 338* 5.2 2.9 179 SAGE CREEK BASIN 7850 .9 .9 100* 3.8 2.8 136 SAND LAKE 10050 5.5 3.3 167 6.1 3.8 161 SOUTH BRUSH CREEK 8440 2.8 .8 350* 4.7 2.9 162 TOWER 10500 8.3 5.0 166* 8.9 5.6 159 WEBBER SPRINGS 9250 2.7 1.6 169* 4.9 3.9 126 WILLOW CREEK PASS 9540 3.0 1.6 188 3.4 2.5 136 ZIRKEL 9340 2.0 1.7 118* 4.8 4.7 102 ----- ----- Basin Index (%) 158* 143 SWEETWATER DEER PARK 9700 2.9 1.9 153 3.4 3.6 94 LARSEN CREEK 9000 .1 -M * 2.3 -M * SOUTH PASS 9040 2.2 1.6 138 3.3 2.8 118 ----- ----- Basin Index (%) 146 105 LOWER N. PLATTE CASPER MTN. 7900 6.6 1.5 440 6.4 3.4 188 LAPRELE CREEK 8375 .9 .8 112* 3.1 2.5 124 RENO HILL 8400 6.2 1.8 344 7.8 3.2 244 WINDY PEAK 7900 .9 .6 150* 3.5 2.2 159 ----- ----- Basin Index (%) 311 184 LARAMIE RIVER BROOKLYN LAKE 10240 2.6 1.7 153* 3.8 2.9 131 CINNABAR PARK 9574 3.2 1.9 168* 4.7 3.6 131 CROW CREEK 8330 1.2 .8 150 3.5 2.3 152 DEADMAN HILL 10220 3.9 2.4 162 4.9 3.0 163 RAWAH 9020 2.7 .8 338* 5.2 2.9 179 ROACH 9700 -M 1.7 * -M 3.0 * ----- ----- Basin Index (%) 179* 150 S. PLATTE BLACK MOUNTAIN 8920 2.1 -M * 3.4 -M * CROW CREEK 8330 1.2 .8 150 3.5 2.3 152 DEADMAN HILL 10220 3.9 2.4 162 4.9 3.0 163 ----- ----- Basin Index (%) 159 158 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 1.9 .0 * 4.2 2.6 162 DIVIDE PEAK 8880 3.2 2.0 160* 6.1 3.8 161 ELK RIVER 8700 1.7 .4 425* 4.5 3.0 150 LITTLE SNAKE RIVER 8915 2.6 1.2 217* 6.7 5.3 126 OLD BATTLE 10000 5.2 3.2 162* 6.1 5.1 120 SAGE CREEK BASIN 7850 .9 .9 100* 3.8 2.8 136 SANDSTONE RS 8150 1.5 .4 375* 4.6 2.9 159 WHISKEY PARK 8950 4.9 1.6 306* 7.3 3.7 197 ----- ----- Basin Index (%) 226* 148 UPPER GREEN RIVER BIG SANDY OPENING 9080 1.6 1.9 84 1.9 2.1 90 BLIND BULL SUM 8650 1.9 2.0 95* 2.5 2.5 100 EAST RIM DIVIDE 7930 .7 .6 117* 1.9 1.7 112 ELKHART PARK G.S. 9400 1.8 1.3 138 2.4 2.2 109 GROS VENTRE SUMMIT 8750 2.8 1.9 147 2.8 2.2 127 GUNSIGHT PASS 9820 2.9 1.4 207 3.1 2.5 124 KENDALL R.S. 7740 .4 .7 57* 1.6 2.0 80 LOOMIS PARK 8240 1.2 1.0 120* 2.5 2.2 114 NEW FORK LAKE 8340 .8 .9 89* 1.2 1.8 67 POCKET CREEK 9360 3.0 -M * 2.9 -M * SNIDER BASIN 8060 1.0 .4 250* 2.0 1.8 111 SPRING CREEK DIVIDE 9000 2.2 1.7 129* 2.9 2.9 100 TRIPLE PEAK 8500 1.8 1.8 100* 2.9 3.0 97 ----- ----- Basin Index (%) 122* 103 LOWER GREEN RIVER BLACKS FORK JCT 8870 .0 -M * 2.6 -M * BUCK PASTURE 9700 1.0 -M * 3.6 -M * EF BLACKS FORK GS 9360 .7 -M * 2.7 -M * HAMS FORK 7840 .6 .4 150* 2.6 1.8 144 HEWINTA 9519 .8 .4 200* 2.9 2.6 112 HICKERSON PARK 9145 1.0 .6 167* 2.8 2.4 117 HOLE-IN-ROCK 9150 .4 .5 80* 2.3 2.4 96 INDIAN CREEK 9425 -M 2.6 * -M 2.9 * KELLEY R.S. 8180 1.4 .9 156* 2.8 2.4 117 SPIRIT LK 10235 1.9 -M * 3.8 -M * STEEL CREEK PARK 10200 .0 1.9 0 3.5 2.9 121 ----- ----- Basin Index (%) 89* 117 UPPER BEAR RIVER BEAR RIVER RS 8777 .6 -M * 2.6 -M * BUG LAKE 7950 1.1 .9 122* 2.3 2.7 85 BURTS MILLER RANCH 8000 .5 -M * 1.4 -M * CHALK CREEK #1 8993 2.8 2.1 133* 4.2 3.8 111 HAYDEN FORK 9212 .8 .6 133* 3.7 3.2 116 KELLEY R.S. 8180 1.4 .9 156* 2.8 2.4 117 LILY LAKE 9156 .6 .9 67* 3.7 3.0 123 MONTE CRISTO 8960 1.6 1.1 145* 3.1 3.5 89 SALT RIVER SUMMIT 7760 1.1 .4 275* 2.9 2.2 132 ----- ----- Basin Index (%) 136* 109 ----------------------------------------------------------------------------- -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.