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 THURSDAY: DECEMBER 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 6.5 4.3 151 8.1 6.7 121 BLACK BEAR 8170 13.0 9.9 131 13.1 11.7 112 BLIND BULL SUM 8650 8.4 5.7 147 7.2 6.3 114 COTTONWOOD CREEK 7670 6.3 5.0 126 8.0 7.5 107 EAST RIM DIVIDE 7930 3.3 2.2 150 4.3 3.7 116 GRAND TARGHEE 9260 16.0 10.1 158 11.5 10.3 112 GRANITE CREEK 6770 4.9 2.9 169 6.4 5.9 108 GRASSY LAKE 7265 8.8 7.0 126 10.1 10.8 94 GROS VENTRE SUMMIT 8750 5.4 4.2 129 5.0 4.4 114 GUNSIGHT PASS 9820 5.9 3.5 169 5.7 4.4 130 LEWIS LAKE DIVIDE 7850 8.3 8.1 102 10.2 10.9 94 PHILLIPS BENCH 8200 7.2 6.4 112 8.3 8.2 101 SALT RIVER SUMMIT 7760 2.9 2.3 126 5.2 4.8 108 SNAKE RIVER STATION 6920 5.1 3.4 150 7.2 7.3 99 SPRING CREEK DIVIDE 9000 6.9 5.7 121 7.2 7.1 101 THUMB DIVIDE 7980 4.0 3.5 114 4.9 5.9 83 TOGWOTEE PASS 9580 9.0 7.8 115 8.3 7.9 105 TWO OCEAN PLATEAU 9240 11.7 9.2 127 9.4 8.9 106 WILLOW CREEK 8380 8.3 6.4 130 11.7 10.4 112 YOUNTS PEAK 8350 -M 4.6 * -M 5.5 * ----- ----- Basin Index (%) 132 106 MADISON-GALLATIN BLACK BEAR 8170 13.0 9.9 131 13.1 11.7 112 CANYON 7870 3.8 3.2 119 5.1 5.3 96 MADISON PLATEAU 7750 6.7 5.8 116 8.3 8.1 102 WEST YELLOWSTONE 6700 3.5 2.3 152 4.7 4.6 102 WHISKEY CREEK 6800 4.4 3.7 119 6.3 6.6 95 ----- ----- Basin Index (%) 126 103 YELLOWSTONE BEARTOOTH LAKE 9360 8.0 6.7 119 6.6 6.1 108 BURNT MTN 5880 3.3 1.3 254 8.7 5.4 161 CANYON 7870 3.8 3.2 119 5.1 5.3 96 COLE CREEK 7850 6.9 4.6 150 5.6 5.2 108 EVENING STAR 9200 11.4 7.7 148 11.2 9.2 122 FISHER CREEK 9100 11.8 9.4 126 10.4 10.0 104 NORTHEAST ENTRANCE 7350 3.1 2.0 155 3.8 4.4 86 PARKER PEAK 9400 9.0 6.6 136 8.3 6.1 136 SYLVAN LAKE 8420 6.5 5.8 112 8.2 7.9 104 THUMB DIVIDE 7980 4.0 3.5 114 4.9 5.9 83 TWO OCEAN PLATEAU 9240 11.7 9.2 127 9.4 8.9 106 WHITE MILL 8700 9.2 6.6 139 7.6 7.8 97 WOLVERINE 7650 3.4 2.5 136 3.7 4.4 84 ----- ----- Basin Index (%) 133 108 WIND RIVER BURROUGHS CREEK 8750 -M 4.2 * -M 5.4 * CASTLE CREEK 8400 2.4 -M * 4.3 -M * COLD SPRINGS 9630 4.0 2.4 167 5.9 3.8 155 DEER PARK 9700 4.7 4.4 107 5.7 6.0 95 HOBBS PARK 10100 5.6 4.8 117 5.2 4.7 111 KIRWIN 9550 6.2 3.6 172 5.2 4.2 124 LITTLE WARM 9370 5.0 3.2 156 5.9 4.6 128 OWL CREEK 8975 2.9 1.7 171 3.0 2.3 130 SOUTH PASS 9040 4.7 4.2 112 4.9 5.8 84 ST. LAWRENCE ALT 8620 2.2 2.2 100 4.7 3.4 138 TOGWOTEE PASS 9580 9.0 7.8 115 8.3 7.9 105 TOWNSEND CREEK 8700 2.4 2.6 92 4.0 4.5 89 ----- ----- Basin Index (%) 127 112 BIGHORN BASIN BALD MTN. 9380 8.3 6.0 138 6.6 5.6 118 BEAR TRAP MEADOW 8200 3.3 1.6 206 4.7 3.3 142 BONE SPRINGS DIV 9350 6.4 5.4 119 5.1 5.2 98 GRAVE SPRINGS 8550 4.2 2.0 210 5.3 3.8 139 KIRWIN 9550 6.2 3.6 172 5.2 4.2 124 MARQUETTE 8760 4.5 -M * 5.4 -M * MIDDLE POWDER 7760 5.7 3.2 178 6.0 4.6 130 OWL CREEK 8975 2.9 1.7 171 3.0 2.3 130 POWDER RIVER PASS 9480 4.9 3.2 153 5.0 4.4 114 SHELL CREEK 9580 6.0 5.1 118 5.3 4.9 108 TIMBER CREEK 7950 3.1 1.8 172 4.7 3.3 142 ----- ----- Basin Index (%) 152 122 SHOSHONE RIVER BLACKWATER 9780 10.8 7.4 146 8.0 7.1 113 EVENING STAR 9200 11.4 7.7 148 11.2 9.2 122 MARQUETTE 8760 4.5 -M * 5.4 -M * SYLVAN ROAD 7120 4.2 3.1 135 7.2 6.4 112 YOUNTS PEAK 8350 -M 4.6 * -M 5.5 * ----- ----- Basin Index (%) 145 116 POWDER RIVER BEAR TRAP MEADOW 8200 3.3 1.6 206 4.7 3.3 142 CLOUD PEAK RESERVOIR 9860 5.5 4.1 134 6.4 4.9 131 GRAVE SPRINGS 8550 4.2 2.0 210 5.3 3.8 139 HANSEN SAWMILL 8360 3.7 1.8 206 4.9 3.2 153 MIDDLE POWDER 7760 5.7 3.2 178 6.0 4.6 130 POWDER RIVER PASS 9480 4.9 3.2 153 5.0 4.4 114 SOLDIER PARK 8720 3.0 -M * 4.8 -M * ----- ----- Basin Index (%) 172 133 TONGUE RIVER BIG GOOSE 7990 3.5 2.7 130 5.5 4.1 134 BONE SPRINGS DIV 9350 6.4 5.4 119 5.1 5.2 98 BURGESS JUNCTION 7880 4.5 3.3 136 5.9 4.4 134 DOME LAKE 8880 2.1 4.0 52 4.5 5.1 88 LITTLE GOOSE 8870 4.2 -M * 6.8 -M * SUCKER CREEK 8880 6.0 3.4 176 6.9 5.0 138 TIE CREEK 6870 1.5 .9 167 5.8 4.3 135 ----- ----- Basin Index (%) 122 120 BELLE FOURCHE COLE CANYON 5910 1.6 .9 178 8.1 3.7 219 ----- ----- Basin Index (%) 178 219 CHEYENNE RIVER BASIN BLIND PARK 6890 2.6 1.9 137 8.9 4.6 193 NORTH RAPID CREEK 6130 3.2 1.6 200 8.6 3.8 226 ----- ----- Basin Index (%) 166 208 UPPER N. PLATTE ARAPAHO RIDGE 10960 8.0 6.0 133 8.2 7.4 111 BLACKHALL MTN 9820 9.8 -M * 11.3 -M * COLUMBINE 9160 5.7 5.0 114 8.1 7.5 108 DIVIDE PEAK 8880 5.9 5.1 116 9.0 7.2 125 JOE WRIGHT 10120 4.5 6.4 70 9.6 8.5 113 LAPRELE CREEK 8375 1.3 2.3 57 4.1 4.3 95 MED BOW 10500 8.5 -M * 10.7 -M * NORTH FRENCH CREEK 10130 8.8 7.6 116 10.5 8.2 128 NEVER SUMMER 10280 7.0 5.5 127 7.0 -M * OLD BATTLE 10000 9.2 8.4 110 10.3 10.7 96 RAWAH 9020 4.4 2.8 157 7.1 5.3 134 SAGE CREEK BASIN 7850 2.8 2.6 108 5.1 4.9 104 SAND LAKE 10050 8.5 7.7 110 8.9 7.8 114 SOUTH BRUSH CREEK 8440 4.2 3.0 140 6.3 5.1 124 TOWER 10500 12.5 12.2 102 14.0 12.4 113 WEBBER SPRINGS 9250 5.9 5.5 107 8.3 8.2 101 WILLOW CREEK PASS 9540 5.7 3.8 150 6.0 4.7 128 ZIRKEL 9340 7.1 5.0 142 10.0 8.9 112 ----- ----- Basin Index (%) 114 113 SWEETWATER DEER PARK 9700 4.7 4.4 107 5.7 6.0 95 LARSEN CREEK 9000 1.2 -M * 3.9 -M * SOUTH PASS 9040 4.7 4.2 112 4.9 5.8 84 ----- ----- Basin Index (%) 109 90 LOWER N. PLATTE CASPER MTN. 7900 6.6 3.8 174 7.0 5.6 125 LAPRELE CREEK 8375 1.3 2.3 57 4.1 4.3 95 RENO HILL 8400 6.7 3.9 172 8.5 5.2 163 WINDY PEAK 7900 1.7 1.9 89 4.6 3.8 121 ----- ----- Basin Index (%) 137 128 LARAMIE RIVER BROOKLYN LAKE 10240 5.9 4.5 131 6.7 6.1 110 CINNABAR PARK 9574 5.9 5.7 104 7.4 7.3 101 CROW CREEK 8330 1.9 2.5 76 4.6 3.8 121 DEADMAN HILL 10220 7.1 5.0 142 7.8 5.6 139 RAWAH 9020 4.4 2.8 157 7.1 5.3 134 ROACH 9700 5.6 4.4 127 7.3 6.0 122 ----- ----- Basin Index (%) 124 120 S. PLATTE BLACK MOUNTAIN 8920 3.8 -M * 5.5 -M * CROW CREEK 8330 1.9 2.5 76 4.6 3.8 121 DEADMAN HILL 10220 7.1 5.0 142 7.8 5.6 139 ----- ----- Basin Index (%) 120 132 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 3.6 1.8 200 6.7 4.9 137 DIVIDE PEAK 8880 5.9 5.1 116 9.0 7.2 125 ELK RIVER 8700 5.3 3.4 156 8.1 6.1 133 LITTLE SNAKE RIVER 8915 6.0 4.1 146 10.9 9.7 112 OLD BATTLE 10000 9.2 8.4 110 10.3 10.7 96 SAGE CREEK BASIN 7850 2.8 2.6 108 5.1 4.9 104 SANDSTONE RS 8150 3.5 2.4 146 7.0 5.7 123 WHISKEY PARK 8950 9.3 5.4 172 11.9 7.9 151 ----- ----- Basin Index (%) 137 121 UPPER GREEN RIVER BIG SANDY OPENING 9080 3.3 3.8 87 3.7 4.4 84 BLIND BULL SUM 8650 8.4 5.7 147 7.2 6.3 114 EAST RIM DIVIDE 7930 3.3 2.2 150 4.3 3.7 116 ELKHART PARK G.S. 9400 4.7 3.6 131 4.9 4.5 109 GROS VENTRE SUMMIT 8750 5.4 4.2 129 5.0 4.4 114 GUNSIGHT PASS 9820 5.9 3.5 169 5.7 4.4 130 KENDALL R.S. 7740 5.1 2.8 182 5.3 4.3 123 LOOMIS PARK 8240 5.0 3.5 143 6.3 5.3 119 NEW FORK LAKE 8340 3.2 2.5 128 3.7 3.6 103 POCKET CREEK 9360 4.2 -M * 3.6 -M * SNIDER BASIN 8060 3.8 2.9 131 4.1 4.3 95 SPRING CREEK DIVIDE 9000 6.9 5.7 121 7.2 7.1 101 TRIPLE PEAK 8500 6.3 5.3 119 7.6 7.4 103 ----- ----- Basin Index (%) 134 109 LOWER GREEN RIVER BLACKS FORK JCT 8870 1.1 -M * 4.4 -M * BUCK PASTURE 9700 2.4 -M * 5.7 -M * EF BLACKS FORK GS 9360 1.6 -M * 3.8 -M * HAMS FORK 7840 1.3 2.6 50 3.7 3.6 103 HEWINTA 9519 1.5 2.0 75 4.6 4.8 96 HICKERSON PARK 9145 2.5 1.6 156 3.5 3.9 90 HOLE-IN-ROCK 9150 1.0 1.7 59 3.8 3.7 103 INDIAN CREEK 9425 5.2 6.4 81 5.6 6.4 88 KELLEY R.S. 8180 3.3 3.4 97 4.3 5.4 80 SPIRIT LK 10235 3.2 -M * 5.4 -M * STEEL CREEK PARK 10200 -M 4.2 * 5.7 5.5 104 ----- ----- Basin Index (%) 84 94 UPPER BEAR RIVER BEAR RIVER RS 8777 1.9 -M * 4.1 -M * BUG LAKE 7950 3.7 3.8 97 4.7 6.0 78 BURTS MILLER RANCH 8000 1.6 -M * 2.3 -M * CHALK CREEK #1 8993 5.9 6.1 97 7.4 8.1 91 HAYDEN FORK 9212 2.6 3.2 81 5.9 6.6 89 KELLEY R.S. 8180 3.3 3.4 97 4.3 5.4 80 LILY LAKE 9156 2.7 3.2 84 6.0 5.8 103 MONTE CRISTO 8960 4.9 6.2 79 6.0 7.8 77 SALT RIVER SUMMIT 7760 2.9 2.3 126 5.2 4.8 108 ----- ----- Basin Index (%) 92 89 ----------------------------------------------------------------------------- -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.