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 19 , 2013 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 3.4 2.0 170 4.7 4.4 107 BLACK BEAR 8170 8.4 6.5 129 8.8 7.6 116 BLIND BULL SUM 8650 4.1 3.4 121 3.9 4.1 95 COTTONWOOD CREEK 7670 4.0 2.7 148 5.4 5.1 106 EAST RIM DIVIDE 7930 1.7 1.3 131 2.8 2.6 108 GRAND TARGHEE 9260 10.9 8.4 130 8.7 8.8 99 GRANITE CREEK 6770 2.2 1.4 157* 3.8 3.9 97 GRASSY LAKE 7265 5.4 4.1 132 7.2 7.0 103 GROS VENTRE SUMMIT 8750 3.8 2.8 136 3.7 3.2 116 GUNSIGHT PASS 9820 3.9 2.5 156 4.0 3.4 118 LEWIS LAKE DIVIDE 7850 4.4 4.5 98 6.2 7.0 89 PHILLIPS BENCH 8200 4.5 3.5 129 5.6 5.3 106 SALT RIVER SUMMIT 7760 1.8 1.1 164* 3.8 3.3 115 SNAKE RIVER STATION 6920 3.2 1.5 213* 4.8 4.7 102 SPRING CREEK DIVIDE 9000 3.5 3.4 103 4.2 4.8 88 THUMB DIVIDE 7980 2.4 2.1 114 3.5 4.0 88 TOGWOTEE PASS 9580 6.8 5.1 133 5.9 5.5 107 TWO OCEAN PLATEAU 9240 7.7 6.2 124 6.2 6.0 103 WILLOW CREEK 8380 4.9 3.7 132 8.2 7.1 115 YOUNTS PEAK 8350 -M 3.0 * -M 3.9 * ----- ----- Basin Index (%) 131 104 MADISON-GALLATIN BLACK BEAR 8170 8.4 6.5 129 8.8 7.6 116 CANYON 7870 2.2 1.8 122 3.7 3.6 103 MADISON PLATEAU 7750 3.5 3.4 103 5.4 5.2 104 WEST YELLOWSTONE 6700 1.9 1.1 173 2.9 3.1 94 WHISKEY CREEK 6800 2.4 1.9 126 3.9 4.2 93 ----- ----- Basin Index (%) 125 104 YELLOWSTONE BEARTOOTH LAKE 9360 5.2 4.8 108 4.1 4.1 100 BURNT MTN 5880 1.3 .4 325* 6.3 4.4 143 CANYON 7870 2.2 1.8 122 3.7 3.6 103 COLE CREEK 7850 5.0 3.4 147 4.3 4.2 102 EVENING STAR 9200 7.7 5.1 151 7.7 6.2 124 FISHER CREEK 9100 7.8 6.1 128 6.8 6.8 100 NORTHEAST ENTRANCE 7350 1.2 .9 133* 2.2 3.2 69 PARKER PEAK 9400 6.7 4.6 146 6.1 4.4 139 SYLVAN LAKE 8420 4.6 3.7 124 6.2 5.5 113 THUMB DIVIDE 7980 2.4 2.1 114 3.5 4.0 88 TWO OCEAN PLATEAU 9240 7.7 6.2 124 6.2 6.0 103 WHITE MILL 8700 5.8 4.4 132 4.8 5.4 89 WOLVERINE 7650 1.3 1.0 130 2.8 3.1 90 ----- ----- Basin Index (%) 132 106 WIND RIVER BURROUGHS CREEK 8750 -M 2.6 * -M 3.7 * CASTLE CREEK 8400 .6 -M * 2.6 -M * COLD SPRINGS 9630 3.0 1.8 167 4.6 3.0 153 DEER PARK 9700 3.7 3.3 112 4.4 4.7 94 HOBBS PARK 10100 4.5 3.6 125 4.6 3.7 124 KIRWIN 9550 4.4 2.8 157 3.6 3.2 112 LITTLE WARM 9370 3.5 2.2 159 4.6 3.3 139 OWL CREEK 8975 2.1 1.3 162 2.4 1.9 126 SOUTH PASS 9040 3.2 2.9 110 3.8 4.2 90 ST. LAWRENCE ALT 8620 1.7 1.5 113 3.9 2.7 144 TOGWOTEE PASS 9580 6.8 5.1 133 5.9 5.5 107 TOWNSEND CREEK 8700 1.9 1.9 100 3.3 3.4 97 ----- ----- Basin Index (%) 132 115 BIGHORN BASIN BALD MTN. 9380 6.9 4.5 153 5.6 4.3 130 BEAR TRAP MEADOW 8200 3.0 1.1 273 4.2 2.6 162 BONE SPRINGS DIV 9350 4.7 4.2 112 4.1 4.1 100 GRAVE SPRINGS 8550 3.9 1.4 279 4.8 3.2 150 KIRWIN 9550 4.4 2.8 157 3.6 3.2 112 MARQUETTE 8760 3.6 -M * 4.6 -M * MIDDLE POWDER 7760 5.4 1.9 284 5.5 3.7 149 OWL CREEK 8975 2.1 1.3 162 2.4 1.9 126 POWDER RIVER PASS 9480 4.2 2.2 191 4.5 3.3 136 SHELL CREEK 9580 5.0 4.0 125 4.1 3.7 111 TIMBER CREEK 7950 2.1 1.3 162 3.9 2.9 134 ----- ----- Basin Index (%) 169 130 SHOSHONE RIVER BLACKWATER 9780 7.5 4.9 153 5.2 5.0 104 EVENING STAR 9200 7.7 5.1 151 7.7 6.2 124 MARQUETTE 8760 3.6 -M * 4.6 -M * SYLVAN ROAD 7120 2.4 1.5 160 5.0 4.3 116 YOUNTS PEAK 8350 -M 3.0 * -M 3.9 * ----- ----- Basin Index (%) 153 115 POWDER RIVER BEAR TRAP MEADOW 8200 3.0 1.1 273 4.2 2.6 162 CLOUD PEAK RESERVOIR 9860 4.5 3.1 145 5.7 4.0 142 GRAVE SPRINGS 8550 3.9 1.4 279 4.8 3.2 150 HANSEN SAWMILL 8360 2.8 1.1 255 4.3 2.6 165 MIDDLE POWDER 7760 5.4 1.9 284 5.5 3.7 149 POWDER RIVER PASS 9480 4.2 2.2 191 4.5 3.3 136 SOLDIER PARK 8720 2.5 -M * 4.3 -M * ----- ----- Basin Index (%) 220 149 TONGUE RIVER BIG GOOSE 7990 2.8 1.7 165 5.0 3.5 143 BONE SPRINGS DIV 9350 4.7 4.2 112 4.1 4.1 100 BURGESS JUNCTION 7880 3.4 2.5 136 5.1 3.6 142 DOME LAKE 8880 1.9 2.9 66 4.1 4.1 100 LITTLE GOOSE 8870 3.4 -M * 6.0 -M * SUCKER CREEK 8880 4.9 2.7 181 6.1 4.0 152 TIE CREEK 6870 1.2 .6 200 5.2 3.6 144 ----- ----- Basin Index (%) 129 129 BELLE FOURCHE COLE CANYON 5910 1.5 .4 375* 7.7 3.0 257 ----- ----- Basin Index (%) 375* 257 CHEYENNE RIVER BASIN BLIND PARK 6890 2.6 1.3 200 8.4 3.8 221 NORTH RAPID CREEK 6130 3.3 1.0 330 8.3 3.3 252 ----- ----- Basin Index (%) 257 235 UPPER N. PLATTE ARAPAHO RIDGE 10960 5.9 4.6 128 6.3 5.7 111 BLACKHALL MTN 9820 7.7 -M * 8.9 -M * COLUMBINE 9160 4.2 3.0 140 6.7 5.3 126 DIVIDE PEAK 8880 4.5 3.3 136 7.6 5.2 146 JOE WRIGHT 10120 3.1 4.7 66 7.8 6.4 122 LAPRELE CREEK 8375 1.1 1.8 61 3.2 3.4 94 MED BOW 10500 7.4 -M * 9.0 -M * NORTH FRENCH CREEK 10130 7.3 4.8 152 9.0 5.9 153 NEVER SUMMER 10280 5.6 4.2 133 5.6 -M * OLD BATTLE 10000 7.6 5.8 131 9.0 7.6 118 RAWAH 9020 3.4 1.8 189 6.2 4.1 151 SAGE CREEK BASIN 7850 1.8 1.7 106 4.6 3.6 128 SAND LAKE 10050 7.1 5.2 137 7.7 5.7 135 SOUTH BRUSH CREEK 8440 3.3 1.7 194 5.6 3.8 147 TOWER 10500 9.9 8.5 116 11.9 8.8 135 WEBBER SPRINGS 9250 4.6 3.4 135 6.9 5.9 117 WILLOW CREEK PASS 9540 4.1 2.7 152 4.5 3.5 129 ZIRKEL 9340 4.5 3.3 136 7.5 6.8 110 ----- ----- Basin Index (%) 129 128 SWEETWATER DEER PARK 9700 3.7 3.3 112 4.4 4.7 94 LARSEN CREEK 9000 .5 -M * 3.1 -M * SOUTH PASS 9040 3.2 2.9 110 3.8 4.2 90 ----- ----- Basin Index (%) 111 92 LOWER N. PLATTE CASPER MTN. 7900 6.6 2.8 236 6.8 4.4 155 LAPRELE CREEK 8375 1.1 1.8 61 3.2 3.4 94 RENO HILL 8400 6.2 2.5 248 8.1 4.1 198 WINDY PEAK 7900 1.1 1.5 73 3.5 3.0 117 ----- ----- Basin Index (%) 174 145 LARAMIE RIVER BROOKLYN LAKE 10240 4.1 3.3 124 5.0 4.4 114 CINNABAR PARK 9574 4.5 3.7 122 6.0 5.2 115 CROW CREEK 8330 1.3 1.1 118 3.8 2.9 131 DEADMAN HILL 10220 5.8 3.6 161 6.5 4.3 151 RAWAH 9020 3.4 1.8 189 6.2 4.1 151 ROACH 9700 4.2 2.8 150 6.1 4.4 139 ----- ----- Basin Index (%) 143 133 S. PLATTE BLACK MOUNTAIN 8920 3.0 -M * 4.3 -M * CROW CREEK 8330 1.3 1.1 118 3.8 2.9 131 DEADMAN HILL 10220 5.8 3.6 161 6.5 4.3 151 ----- ----- Basin Index (%) 151 143 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 2.5 .9 278* 5.6 3.6 156 DIVIDE PEAK 8880 4.5 3.3 136 7.6 5.2 146 ELK RIVER 8700 3.7 1.7 218* 6.5 4.4 148 LITTLE SNAKE RIVER 8915 4.5 2.9 155 9.0 6.9 130 OLD BATTLE 10000 7.6 5.8 131 9.0 7.6 118 SAGE CREEK BASIN 7850 1.8 1.7 106 4.6 3.6 128 SANDSTONE RS 8150 2.5 1.1 227* 5.9 4.2 140 WHISKEY PARK 8950 7.5 3.5 214 10.2 5.7 179 ----- ----- Basin Index (%) 166 142 UPPER GREEN RIVER BIG SANDY OPENING 9080 2.6 2.9 90 2.7 3.2 84 BLIND BULL SUM 8650 4.1 3.4 121 3.9 4.1 95 EAST RIM DIVIDE 7930 1.7 1.3 131 2.8 2.6 108 ELKHART PARK G.S. 9400 2.6 2.5 104 3.0 3.3 91 GROS VENTRE SUMMIT 8750 3.8 2.8 136 3.7 3.2 116 GUNSIGHT PASS 9820 3.9 2.5 156 4.0 3.4 118 KENDALL R.S. 7740 1.7 1.7 100 2.9 3.1 94 LOOMIS PARK 8240 2.8 2.1 133 4.1 3.6 114 NEW FORK LAKE 8340 1.2 1.7 71 1.9 2.7 70 POCKET CREEK 9360 3.8 -M * 3.1 -M * SNIDER BASIN 8060 1.8 1.7 106 2.6 2.9 90 SPRING CREEK DIVIDE 9000 3.5 3.4 103 4.2 4.8 88 TRIPLE PEAK 8500 3.4 3.4 100 4.8 5.0 96 ----- ----- Basin Index (%) 113 97 LOWER GREEN RIVER BLACKS FORK JCT 8870 -M -M * 3.3 -M * BUCK PASTURE 9700 2.0 -M * 4.4 -M * EF BLACKS FORK GS 9360 1.6 -M * 3.4 -M * HAMS FORK 7840 .6 1.3 46 3.1 2.6 119 HEWINTA 9519 .6 1.3 46 3.7 3.6 103 HICKERSON PARK 9145 1.8 1.3 138 3.2 3.2 100 HOLE-IN-ROCK 9150 .9 1.1 82 2.9 3.0 97 INDIAN CREEK 9425 3.0 4.3 70 4.0 4.5 89 KELLEY R.S. 8180 2.2 2.1 105 3.7 3.8 97 SPIRIT LK 10235 2.2 -M * 4.2 -M * STEEL CREEK PARK 10200 -M 3.0 * 4.4 4.1 107 ----- ----- Basin Index (%) 80 101 UPPER BEAR RIVER BEAR RIVER RS 8777 .8 -M * 3.3 -M * BUG LAKE 7950 1.9 2.3 83 3.5 4.2 83 BURTS MILLER RANCH 8000 .6 -M * 1.8 -M * CHALK CREEK #1 8993 4.1 3.6 114 5.3 5.8 91 HAYDEN FORK 9212 1.3 2.0 65 4.6 4.8 96 KELLEY R.S. 8180 2.2 2.1 105 3.7 3.8 97 LILY LAKE 9156 1.8 2.0 90 4.5 4.2 107 MONTE CRISTO 8960 2.9 3.0 97 4.0 5.4 74 SALT RIVER SUMMIT 7760 1.8 1.1 164* 3.8 3.3 115 ----- ----- Basin Index (%) 99 93 ----------------------------------------------------------------------------- -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.