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: DECEMBER 30 , 2013 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 8.0 7.0 114 9.3 9.8 95 BLACK BEAR 8170 16.1 17.2 94 16.0 17.4 92 BLIND BULL SUM 8650 9.9 8.9 111 8.3 9.1 91 COTTONWOOD CREEK 7670 8.4 8.2 102 9.9 10.9 91 EAST RIM DIVIDE 7930 5.2 4.2 124 5.1 5.4 94 GRAND TARGHEE 9260 20.4 17.3 118 14.7 14.6 101 GRANITE CREEK 6770 6.0 6.2 97 7.5 9.2 82 GRASSY LAKE 7265 11.9 12.2 98 13.9 16.6 84 GROS VENTRE SUMMIT 8750 6.2 6.0 103 5.8 6.0 97 GUNSIGHT PASS 9820 7.3 5.9 124 7.1 6.3 113 LEWIS LAKE DIVIDE 7850 9.9 12.9 77 12.4 16.5 75 PHILLIPS BENCH 8200 9.5 10.6 90 10.6 12.5 85 SALT RIVER SUMMIT 7760 4.7 4.7 100 6.7 7.3 92 SNAKE RIVER STATION 6920 6.3 6.0 105 8.7 10.8 81 SPRING CREEK DIVIDE 9000 8.9 9.7 92 9.5 10.5 90 THUMB DIVIDE 7980 5.3 6.0 88 6.1 8.5 72 TOGWOTEE PASS 9580 11.1 10.8 103 10.7 11.2 96 TWO OCEAN PLATEAU 9240 13.6 12.2 111 11.2 12.4 90 WILLOW CREEK 8380 10.9 10.4 105 14.3 15.2 94 YOUNTS PEAK 8350 -M 6.9 * -M 7.6 * ----- ----- Basin Index (%) 102 89 MADISON-GALLATIN BLACK BEAR 8170 16.1 17.2 94 16.0 17.4 92 CANYON 7870 5.0 5.2 96 6.5 7.7 84 MADISON PLATEAU 7750 8.5 10.1 84 9.8 12.1 81 WEST YELLOWSTONE 6700 4.6 4.5 102 5.6 6.9 81 WHISKEY CREEK 6800 5.9 6.4 92 7.8 9.5 82 ----- ----- Basin Index (%) 92 85 YELLOWSTONE BEARTOOTH LAKE 9360 10.2 9.7 105 8.7 9.0 97 BURNT MTN 5880 3.9 1.9 205 9.7 6.7 145 CANYON 7870 5.0 5.2 96 6.5 7.7 84 COLE CREEK 7850 8.3 6.3 132 6.4 6.3 102 EVENING STAR 9200 13.8 11.0 125 14.4 12.9 112 FISHER CREEK 9100 14.9 14.3 104 13.5 14.7 92 NORTHEAST ENTRANCE 7350 4.2 3.8 111 5.2 6.0 87 PARKER PEAK 9400 11.7 9.6 122 11.0 8.3 133 SYLVAN LAKE 8420 9.4 9.0 104 11.3 10.9 104 THUMB DIVIDE 7980 5.3 6.0 88 6.1 8.5 72 TWO OCEAN PLATEAU 9240 13.6 12.2 111 11.2 12.4 90 WHITE MILL 8700 11.3 9.6 118 9.6 11.1 86 WOLVERINE 7650 5.6 4.6 122 5.2 6.1 85 ----- ----- Basin Index (%) 114 99 WIND RIVER BURROUGHS CREEK 8750 -M 6.1 * -M 7.6 * CASTLE CREEK 8400 3.1 -M * 4.9 -M * COLD SPRINGS 9630 4.7 3.1 152 6.5 4.9 133 DEER PARK 9700 5.1 6.6 77 6.8 8.6 79 HOBBS PARK 10100 6.3 6.4 98 5.9 6.1 97 KIRWIN 9550 7.1 4.3 165 6.1 5.5 111 LITTLE WARM 9370 5.6 4.4 127 6.8 6.1 111 OWL CREEK 8975 3.6 2.5 144 3.5 2.8 125 SOUTH PASS 9040 5.6 6.5 86 5.9 8.1 73 ST. LAWRENCE ALT 8620 2.8 3.0 93 5.2 4.2 124 TOGWOTEE PASS 9580 11.1 10.8 103 10.7 11.2 96 TOWNSEND CREEK 8700 3.0 4.0 75 4.1 5.7 72 ----- ----- Basin Index (%) 106 97 BIGHORN BASIN BALD MTN. 9380 10.9 8.2 133 8.9 7.8 114 BEAR TRAP MEADOW 8200 4.5 2.5 180 5.4 4.2 129 BONE SPRINGS DIV 9350 8.0 7.2 111 6.5 7.0 93 GRAVE SPRINGS 8550 5.1 3.2 159 6.1 5.0 122 KIRWIN 9550 7.1 4.3 165 6.1 5.5 111 MARQUETTE 8760 4.3 -M * 5.9 -M * MIDDLE POWDER 7760 6.9 4.8 144 6.8 6.0 113 OWL CREEK 8975 3.6 2.5 144 3.5 2.8 125 POWDER RIVER PASS 9480 5.9 4.6 128 6.1 5.8 105 SHELL CREEK 9580 7.4 7.1 104 6.3 6.4 98 TIMBER CREEK 7950 3.3 2.1 157 4.8 3.9 123 ----- ----- Basin Index (%) 135 111 SHOSHONE RIVER BLACKWATER 9780 12.0 10.4 115 9.8 9.7 101 EVENING STAR 9200 13.8 11.0 125 14.4 12.9 112 MARQUETTE 8760 4.3 -M * 5.9 -M * SYLVAN ROAD 7120 5.7 5.2 110 9.1 8.8 103 YOUNTS PEAK 8350 -M 6.9 * -M 7.6 * ----- ----- Basin Index (%) 118 106 POWDER RIVER BEAR TRAP MEADOW 8200 4.5 2.5 180 5.4 4.2 129 CLOUD PEAK RESERVOIR 9860 7.5 6.1 123 7.9 6.2 127 GRAVE SPRINGS 8550 5.1 3.2 159 6.1 5.0 122 HANSEN SAWMILL 8360 4.0 2.9 138 5.7 4.0 142 MIDDLE POWDER 7760 6.9 4.8 144 6.8 6.0 113 POWDER RIVER PASS 9480 5.9 4.6 128 6.1 5.8 105 SOLDIER PARK 8720 3.5 -M * 5.4 -M * ----- ----- Basin Index (%) 141 122 TONGUE RIVER BIG GOOSE 7990 4.4 3.6 122 6.6 5.2 127 BONE SPRINGS DIV 9350 8.0 7.2 111 6.5 7.0 93 BURGESS JUNCTION 7880 5.6 4.6 122 7.0 5.8 121 DOME LAKE 8880 3.6 5.3 68 5.2 6.6 79 LITTLE GOOSE 8870 -M -M * -M -M * SUCKER CREEK 8880 7.3 5.0 146 8.2 6.6 124 TIE CREEK 6870 2.5 1.9 132 6.8 5.5 124 ----- ----- Basin Index (%) 114 110 BELLE FOURCHE COLE CANYON 5910 3.2 2.1 152 9.2 4.6 200 ----- ----- Basin Index (%) 152 200 CHEYENNE RIVER BASIN BLIND PARK 6890 4.4 3.2 138 10.2 6.0 170 NORTH RAPID CREEK 6130 4.5 3.1 145 9.9 5.0 198 ----- ----- Basin Index (%) 141 183 UPPER N. PLATTE ARAPAHO RIDGE 10960 9.8 9.2 107 9.9 10.6 93 BLACKHALL MTN 9820 12.9 -M * 14.2 -M * COLUMBINE 9160 9.1 8.6 106 11.7 11.3 104 DIVIDE PEAK 8880 7.5 8.3 90 11.1 10.1 110 JOE WRIGHT 10120 7.0 9.3 75 11.0 11.8 93 LAPRELE CREEK 8375 2.9 3.9 74 5.0 5.9 85 MED BOW 10500 11.5 -M * 14.4 -M * NORTH FRENCH CREEK 10130 12.8 11.3 113 14.2 11.8 120 NEVER SUMMER 10280 8.9 8.5 105 8.2 -M * OLD BATTLE 10000 12.7 12.3 103 14.7 16.0 92 RAWAH 9020 5.5 4.2 131 8.2 7.2 114 SAGE CREEK BASIN 7850 4.4 5.6 79 6.4 7.2 89 SAND LAKE 10050 12.0 11.4 105 12.1 11.0 110 SOUTH BRUSH CREEK 8440 5.7 4.6 124 8.2 7.0 117 TOWER 10500 16.8 18.5 91 18.7 18.0 104 WEBBER SPRINGS 9250 8.7 9.3 94 11.1 12.2 91 WILLOW CREEK PASS 9540 6.4 5.4 119 7.2 6.4 112 ZIRKEL 9340 10.7 9.6 111 13.6 13.2 103 ----- ----- Basin Index (%) 101 102 SWEETWATER DEER PARK 9700 5.1 6.6 77 6.8 8.6 79 LARSEN CREEK 9000 2.1 -M * 5.1 -M * SOUTH PASS 9040 5.6 6.5 86 5.9 8.1 73 ----- ----- Basin Index (%) 82 76 LOWER N. PLATTE CASPER MTN. 7900 8.8 5.7 154 8.7 7.3 119 LAPRELE CREEK 8375 2.9 3.9 74 5.0 5.9 85 RENO HILL 8400 8.5 5.7 149 10.4 7.0 149 WINDY PEAK 7900 2.6 3.0 87 5.2 5.1 102 ----- ----- Basin Index (%) 125 116 LARAMIE RIVER BROOKLYN LAKE 10240 8.7 7.7 113 9.2 9.1 101 CINNABAR PARK 9574 8.4 8.7 97 10.4 11.2 93 CROW CREEK 8330 2.8 4.3 65 5.2 5.4 96 DEADMAN HILL 10220 8.9 7.1 125 9.3 7.6 122 RAWAH 9020 5.5 4.2 131 8.2 7.2 114 ROACH 9700 7.0 6.8 103 9.3 8.8 106 ----- ----- Basin Index (%) 106 105 S. PLATTE BLACK MOUNTAIN 8920 4.9 -M * 6.2 -M * CROW CREEK 8330 2.8 4.3 65 5.2 5.4 96 DEADMAN HILL 10220 8.9 7.1 125 9.3 7.6 122 ----- ----- Basin Index (%) 103 112 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 5.0 3.9 128 8.9 6.8 131 DIVIDE PEAK 8880 7.5 8.3 90 11.1 10.1 110 ELK RIVER 8700 7.8 6.5 120 10.3 8.9 116 LITTLE SNAKE RIVER 8915 9.7 8.7 111 15.0 14.5 103 OLD BATTLE 10000 12.7 12.3 103 14.7 16.0 92 SAGE CREEK BASIN 7850 4.4 5.6 79 6.4 7.2 89 SANDSTONE RS 8150 4.8 4.2 114 8.9 8.3 107 WHISKEY PARK 8950 13.2 9.3 142 15.7 11.7 134 ----- ----- Basin Index (%) 111 109 UPPER GREEN RIVER BIG SANDY OPENING 9080 4.7 5.7 82 4.7 6.2 76 BLIND BULL SUM 8650 9.9 8.9 111 8.3 9.1 91 EAST RIM DIVIDE 7930 5.2 4.2 124 5.1 5.4 94 ELKHART PARK G.S. 9400 5.8 5.6 104 6.0 6.3 95 GROS VENTRE SUMMIT 8750 6.2 6.0 103 5.8 6.0 97 GUNSIGHT PASS 9820 7.3 5.9 124 7.1 6.3 113 KENDALL R.S. 7740 5.6 4.7 119 6.5 6.4 102 LOOMIS PARK 8240 6.1 6.4 95 7.4 8.0 92 NEW FORK LAKE 8340 4.3 4.4 98 4.3 5.0 86 POCKET CREEK 9360 4.6 -M * 4.5 -M * SNIDER BASIN 8060 4.9 5.0 98 5.7 6.4 89 SPRING CREEK DIVIDE 9000 8.9 9.7 92 9.5 10.5 90 TRIPLE PEAK 8500 8.0 8.0 100 9.8 10.7 92 ----- ----- Basin Index (%) 103 93 LOWER GREEN RIVER BLACKS FORK JCT 8870 2.1 -M * 5.1 -M * BUCK PASTURE 9700 4.0 -M * 6.7 -M * EF BLACKS FORK GS 9360 1.6 -M * 4.4 -M * HAMS FORK 7840 2.8 4.4 64 4.8 5.0 96 HEWINTA 9519 2.4 3.6 67 5.4 6.3 86 HICKERSON PARK 9145 3.7 2.8 132 5.2 4.9 106 HOLE-IN-ROCK 9150 2.7 2.9 93 4.8 4.6 104 INDIAN CREEK 9425 7.6 9.9 77 7.7 9.6 80 KELLEY R.S. 8180 5.0 6.1 82 6.8 8.2 83 SPIRIT LK 10235 4.9 -M * 7.5 -M * STEEL CREEK PARK 10200 5.4 6.1 89 6.8 7.4 92 ----- ----- Basin Index (%) 83 90 UPPER BEAR RIVER BEAR RIVER RS 8777 2.8 -M * 5.3 -M * BUG LAKE 7950 5.6 6.2 90 6.5 8.8 74 BURTS MILLER RANCH 8000 2.6 -M * 3.2 -M * CHALK CREEK #1 8993 8.1 9.6 84 9.5 11.3 84 HAYDEN FORK 9212 4.2 5.7 74 7.6 9.3 82 KELLEY R.S. 8180 5.0 6.1 82 6.8 8.2 83 LILY LAKE 9156 4.3 5.0 86 7.0 7.8 90 MONTE CRISTO 8960 7.8 9.8 80 8.3 11.4 73 SALT RIVER SUMMIT 7760 4.7 4.7 100 6.7 7.3 92 ----- ----- Basin Index (%) 84 82 ----------------------------------------------------------------------------- -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.