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 SUNDAY: DECEMBER 29 , 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 6.9 116 9.3 9.6 97 BLACK BEAR 8170 16.0 16.8 95 15.8 17.0 93 BLIND BULL SUM 8650 9.9 8.8 112 8.3 8.9 93 COTTONWOOD CREEK 7670 8.3 8.0 104 9.9 10.7 93 EAST RIM DIVIDE 7930 5.2 4.2 124 5.1 5.3 96 GRAND TARGHEE 9260 20.3 17.2 118 14.6 14.6 100 GRANITE CREEK 6770 5.9 6.0 98 7.4 9.0 82 GRASSY LAKE 7265 11.9 11.9 100 13.6 16.2 84 GROS VENTRE SUMMIT 8750 6.2 5.9 105 5.7 5.9 97 GUNSIGHT PASS 9820 7.2 5.8 124 7.0 6.2 113 LEWIS LAKE DIVIDE 7850 9.9 12.6 79 12.3 16.1 76 PHILLIPS BENCH 8200 9.4 10.4 90 10.5 12.2 86 SALT RIVER SUMMIT 7760 4.6 4.6 100 6.7 7.2 93 SNAKE RIVER STATION 6920 6.2 5.8 107 8.7 10.5 83 SPRING CREEK DIVIDE 9000 8.9 9.4 95 9.4 10.4 90 THUMB DIVIDE 7980 5.2 5.9 88 6.0 8.3 72 TOGWOTEE PASS 9580 10.9 10.6 103 10.5 11.0 95 TWO OCEAN PLATEAU 9240 13.5 12.0 112 11.2 12.1 93 WILLOW CREEK 8380 10.9 10.2 107 14.3 15.0 95 YOUNTS PEAK 8350 -M 6.8 * -M 7.4 * ----- ----- Basin Index (%) 103 90 MADISON-GALLATIN BLACK BEAR 8170 16.0 16.8 95 15.8 17.0 93 CANYON 7870 4.9 5.1 96 6.5 7.5 87 MADISON PLATEAU 7750 8.4 9.9 85 9.7 11.8 82 WEST YELLOWSTONE 6700 4.5 4.4 102 5.6 6.7 84 WHISKEY CREEK 6800 5.9 6.2 95 7.8 9.3 84 ----- ----- Basin Index (%) 94 87 YELLOWSTONE BEARTOOTH LAKE 9360 10.0 9.6 104 8.5 8.8 97 BURNT MTN 5880 3.9 1.9 205 9.5 6.6 144 CANYON 7870 4.9 5.1 96 6.5 7.5 87 COLE CREEK 7850 8.2 6.2 132 6.3 6.3 100 EVENING STAR 9200 13.6 10.7 127 14.3 12.6 113 FISHER CREEK 9100 14.7 14.1 104 13.4 14.4 93 NORTHEAST ENTRANCE 7350 4.2 3.7 114 5.1 5.9 86 PARKER PEAK 9400 11.6 9.4 123 11.0 8.2 134 SYLVAN LAKE 8420 9.3 8.9 104 11.2 10.8 104 THUMB DIVIDE 7980 5.2 5.9 88 6.0 8.3 72 TWO OCEAN PLATEAU 9240 13.5 12.0 112 11.2 12.1 93 WHITE MILL 8700 11.2 9.4 119 9.5 10.8 88 WOLVERINE 7650 5.6 4.5 124 5.1 6.0 85 ----- ----- Basin Index (%) 114 99 WIND RIVER BURROUGHS CREEK 8750 -M 6.0 * -M 7.5 * CASTLE CREEK 8400 3.0 -M * 4.7 -M * COLD SPRINGS 9630 4.6 3.0 153 6.4 4.8 133 DEER PARK 9700 5.1 6.6 77 6.6 8.4 79 HOBBS PARK 10100 6.3 6.3 100 5.6 6.0 93 KIRWIN 9550 6.9 4.2 164 5.9 5.4 109 LITTLE WARM 9370 5.6 4.3 130 6.7 6.0 112 OWL CREEK 8975 3.5 2.4 146 3.4 2.8 121 SOUTH PASS 9040 5.6 6.3 89 5.8 8.1 72 ST. LAWRENCE ALT 8620 2.5 2.9 86 4.5 4.2 107 TOGWOTEE PASS 9580 10.9 10.6 103 10.5 11.0 95 TOWNSEND CREEK 8700 2.9 3.9 74 3.9 5.7 68 ----- ----- Basin Index (%) 107 95 BIGHORN BASIN BALD MTN. 9380 10.7 8.0 134 8.7 7.6 114 BEAR TRAP MEADOW 8200 4.4 2.5 176 5.2 4.2 124 BONE SPRINGS DIV 9350 7.9 7.1 111 6.2 6.9 90 GRAVE SPRINGS 8550 5.0 3.2 156 6.0 5.0 120 KIRWIN 9550 6.9 4.2 164 5.9 5.4 109 MARQUETTE 8760 4.2 -M * 5.7 -M * MIDDLE POWDER 7760 6.9 4.8 144 6.6 6.0 110 OWL CREEK 8975 3.5 2.4 146 3.4 2.8 121 POWDER RIVER PASS 9480 5.9 4.5 131 6.0 5.7 105 SHELL CREEK 9580 7.3 7.0 104 6.2 6.4 97 TIMBER CREEK 7950 3.2 2.1 152 4.8 3.8 126 ----- ----- Basin Index (%) 135 110 SHOSHONE RIVER BLACKWATER 9780 11.9 10.2 117 9.7 9.6 101 EVENING STAR 9200 13.6 10.7 127 14.3 12.6 113 MARQUETTE 8760 4.2 -M * 5.7 -M * SYLVAN ROAD 7120 5.6 5.1 110 9.0 8.7 103 YOUNTS PEAK 8350 -M 6.8 * -M 7.4 * ----- ----- Basin Index (%) 120 107 POWDER RIVER BEAR TRAP MEADOW 8200 4.4 2.5 176 5.2 4.2 124 CLOUD PEAK RESERVOIR 9860 7.3 6.0 122 7.4 6.1 121 GRAVE SPRINGS 8550 5.0 3.2 156 6.0 5.0 120 HANSEN SAWMILL 8360 3.8 2.9 131 5.6 4.0 140 MIDDLE POWDER 7760 6.9 4.8 144 6.6 6.0 110 POWDER RIVER PASS 9480 5.9 4.5 131 6.0 5.7 105 SOLDIER PARK 8720 3.3 -M * 5.3 -M * ----- ----- Basin Index (%) 139 119 TONGUE RIVER BIG GOOSE 7990 4.2 3.6 117 6.4 5.2 123 BONE SPRINGS DIV 9350 7.9 7.1 111 6.2 6.9 90 BURGESS JUNCTION 7880 5.6 4.6 122 6.8 5.8 117 DOME LAKE 8880 3.4 5.2 65 5.2 6.6 79 LITTLE GOOSE 8870 -M -M * -M -M * SUCKER CREEK 8880 7.2 5.0 144 8.0 6.6 121 TIE CREEK 6870 2.4 1.9 126 6.7 5.5 122 ----- ----- Basin Index (%) 112 107 BELLE FOURCHE COLE CANYON 5910 2.8 2.0 140 9.0 4.6 196 ----- ----- Basin Index (%) 140 196 CHEYENNE RIVER BASIN BLIND PARK 6890 4.0 3.1 129 10.0 5.8 172 NORTH RAPID CREEK 6130 4.2 3.1 135 9.5 4.9 194 ----- ----- Basin Index (%) 132 182 UPPER N. PLATTE ARAPAHO RIDGE 10960 9.8 9.1 108 9.9 10.4 95 BLACKHALL MTN 9820 13.0 -M * 14.1 -M * COLUMBINE 9160 9.2 8.4 110 11.7 11.2 104 DIVIDE PEAK 8880 7.5 8.1 93 11.0 10.0 110 JOE WRIGHT 10120 7.0 9.2 76 11.2 11.8 95 LAPRELE CREEK 8375 2.7 3.8 71 5.0 5.8 86 MED BOW 10500 11.4 -M * 14.5 -M * NORTH FRENCH CREEK 10130 12.8 11.1 115 14.3 11.6 123 NEVER SUMMER 10280 8.9 8.4 106 8.2 -M * OLD BATTLE 10000 12.7 12.2 104 14.8 15.8 94 RAWAH 9020 5.4 4.1 132 8.3 7.1 117 SAGE CREEK BASIN 7850 4.4 5.5 80 6.4 7.0 91 SAND LAKE 10050 11.9 11.2 106 12.1 10.9 111 SOUTH BRUSH CREEK 8440 5.7 4.5 127 8.2 7.0 117 TOWER 10500 16.8 18.4 91 18.7 17.8 105 WEBBER SPRINGS 9250 8.8 9.2 96 11.1 12.0 92 WILLOW CREEK PASS 9540 6.3 5.3 119 7.2 6.3 114 ZIRKEL 9340 10.7 9.4 114 13.7 12.8 107 ----- ----- Basin Index (%) 102 104 SWEETWATER DEER PARK 9700 5.1 6.6 77 6.6 8.4 79 LARSEN CREEK 9000 2.1 -M * 5.1 -M * SOUTH PASS 9040 5.6 6.3 89 5.8 8.1 72 ----- ----- Basin Index (%) 83 75 LOWER N. PLATTE CASPER MTN. 7900 8.7 5.6 155 8.6 7.3 118 LAPRELE CREEK 8375 2.7 3.8 71 5.0 5.8 86 RENO HILL 8400 8.4 5.6 150 10.3 6.9 149 WINDY PEAK 7900 2.5 3.0 83 5.3 5.1 104 ----- ----- Basin Index (%) 124 116 LARAMIE RIVER BROOKLYN LAKE 10240 8.5 7.6 112 9.2 8.9 103 CINNABAR PARK 9574 8.5 8.5 100 10.6 10.9 97 CROW CREEK 8330 2.7 4.2 64 5.2 5.4 96 DEADMAN HILL 10220 8.9 7.0 127 9.0 7.6 118 RAWAH 9020 5.4 4.1 132 8.3 7.1 117 ROACH 9700 7.0 6.8 103 9.3 8.7 107 ----- ----- Basin Index (%) 107 106 S. PLATTE BLACK MOUNTAIN 8920 4.9 -M * 6.1 -M * CROW CREEK 8330 2.7 4.2 64 5.2 5.4 96 DEADMAN HILL 10220 8.9 7.0 127 9.0 7.6 118 ----- ----- Basin Index (%) 104 109 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 5.0 3.7 135 8.9 6.8 131 DIVIDE PEAK 8880 7.5 8.1 93 11.0 10.0 110 ELK RIVER 8700 7.8 6.4 122 10.2 8.8 116 LITTLE SNAKE RIVER 8915 9.8 8.6 114 14.9 14.1 106 OLD BATTLE 10000 12.7 12.2 104 14.8 15.8 94 SAGE CREEK BASIN 7850 4.4 5.5 80 6.4 7.0 91 SANDSTONE RS 8150 4.8 4.2 114 8.9 8.2 109 WHISKEY PARK 8950 13.3 9.1 146 15.7 11.5 137 ----- ----- Basin Index (%) 113 110 UPPER GREEN RIVER BIG SANDY OPENING 9080 4.8 5.6 86 4.7 6.0 78 BLIND BULL SUM 8650 9.9 8.8 112 8.3 8.9 93 EAST RIM DIVIDE 7930 5.2 4.2 124 5.1 5.3 96 ELKHART PARK G.S. 9400 5.8 5.5 105 5.9 6.2 95 GROS VENTRE SUMMIT 8750 6.2 5.9 105 5.7 5.9 97 GUNSIGHT PASS 9820 7.2 5.8 124 7.0 6.2 113 KENDALL R.S. 7740 5.6 4.6 122 6.5 6.2 105 LOOMIS PARK 8240 6.0 6.2 97 7.4 7.8 95 NEW FORK LAKE 8340 4.3 4.4 98 4.3 5.0 86 POCKET CREEK 9360 4.6 -M * 4.4 -M * SNIDER BASIN 8060 4.9 4.9 100 5.3 6.3 84 SPRING CREEK DIVIDE 9000 8.9 9.4 95 9.4 10.4 90 TRIPLE PEAK 8500 8.0 7.9 101 9.8 10.5 93 ----- ----- Basin Index (%) 105 94 LOWER GREEN RIVER BLACKS FORK JCT 8870 2.3 -M * 5.1 -M * BUCK PASTURE 9700 4.1 -M * 6.7 -M * EF BLACKS FORK GS 9360 1.7 -M * 4.4 -M * HAMS FORK 7840 2.8 4.4 64 4.8 5.0 96 HEWINTA 9519 2.3 3.6 64 5.4 6.2 87 HICKERSON PARK 9145 3.7 2.7 137 5.2 4.8 108 HOLE-IN-ROCK 9150 2.6 2.9 90 4.7 4.6 102 INDIAN CREEK 9425 7.6 9.9 77 7.7 9.4 82 KELLEY R.S. 8180 4.9 6.0 82 6.6 8.1 81 SPIRIT LK 10235 4.8 -M * 7.5 -M * STEEL CREEK PARK 10200 5.5 6.1 90 6.7 7.3 92 ----- ----- Basin Index (%) 83 91 UPPER BEAR RIVER BEAR RIVER RS 8777 2.9 -M * 5.4 -M * BUG LAKE 7950 5.6 6.1 92 6.4 8.6 74 BURTS MILLER RANCH 8000 2.7 -M * 3.2 -M * CHALK CREEK #1 8993 8.3 9.5 87 9.5 11.1 86 HAYDEN FORK 9212 4.2 5.5 76 7.6 9.2 83 KELLEY R.S. 8180 4.9 6.0 82 6.6 8.1 81 LILY LAKE 9156 4.4 4.9 90 7.0 7.8 90 MONTE CRISTO 8960 7.8 9.7 80 8.3 11.3 73 SALT RIVER SUMMIT 7760 4.6 4.6 100 6.7 7.2 93 ----- ----- Basin Index (%) 86 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.