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 FRIDAY: DECEMBER 14 , 2012 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 8.2 5.3 155 10.5 7.9 133 BLACK BEAR 8170 15.9 12.8 124 17.0 13.9 122 BLIND BULL SUM 8650 -M 6.8 * -M 7.4 * COTTONWOOD CREEK 7670 6.3 6.2 102 9.7 8.8 110 EAST RIM DIVIDE 7930 3.1 2.8 111 3.7 4.3 86 GRAND TARGHEE 9260 17.5 12.4 141 14.0 11.6 121 GRANITE CREEK 6770 5.9 4.1 144 7.9 7.2 110 GRASSY LAKE 7265 9.1 9.0 101 13.7 12.9 106 GROS VENTRE SUMMIT 8750 5.0 4.6 109 5.5 5.0 110 GUNSIGHT PASS 9820 5.4 4.2 129 5.8 5.0 116 LEWIS LAKE DIVIDE 7850 13.1 9.4 139 16.2 13.0 125 PHILLIPS BENCH 8200 8.8 7.8 113 11.0 9.8 112 SALT RIVER SUMMIT 7760 3.2 3.1 103 6.2 5.7 109 SNAKE RIVER STATION 6920 6.0 4.5 133 10.7 8.7 123 SPRING CREEK DIVIDE 9000 8.0 7.1 113 8.6 8.5 101 THUMB DIVIDE 7980 6.9 4.2 164 8.5 6.9 123 TOGWOTEE PASS 9580 9.5 8.7 109 10.2 9.2 111 TWO OCEAN PLATEAU 9240 13.7 10.3 133 11.8 10.2 116 WILLOW CREEK 8380 8.3 7.8 106 12.5 12.3 102 YOUNTS PEAK 8350 6.0 5.2 115 5.8 6.2 94 ----- ----- Basin wide percent 123 113 MADISON-GALLATIN BLACK BEAR 8170 15.9 12.8 124 17.0 13.9 122 CANYON 7870 4.5 3.7 122 5.7 6.0 95 MADISON PLATEAU 7750 9.9 7.3 136 12.6 9.6 131 WEST YELLOWSTONE 6700 3.3 2.9 114 7.2 5.3 136 WHISKEY CREEK 6800 3.8 4.4 86 9.3 7.7 121 ----- ----- Basin wide percent 120 122 YELLOWSTONE BEARTOOTH LAKE 9360 7.2 7.5 96 7.7 7.0 110 BURNT MTN 5880 .7 1.5 47 4.6 5.9 78 CANYON 7870 4.5 3.7 122 5.7 6.0 95 COLE CREEK 7850 3.0 5.4 56 4.3 5.6 77 EVENING STAR 9200 11.4 8.6 133 13.5 10.5 129 FISHER CREEK 9100 16.2 11.0 147 16.0 11.8 136 NORTHEAST ENTRANCE 7350 2.3 2.5 92 5.6 5.0 112 PARKER PEAK 9400 9.1 7.5 121 9.5 6.9 138 SYLVAN LAKE 8420 7.8 6.7 116 11.7 9.0 130 THUMB DIVIDE 7980 6.9 4.2 164 8.5 6.9 123 TWO OCEAN PLATEAU 9240 13.7 10.3 133 11.8 10.2 116 WHITE MILL 8700 9.8 7.4 132 11.1 8.9 125 WOLVERINE 7650 3.7 3.2 116 4.8 5.0 96 ----- ----- Basin wide percent 121 116 WIND RIVER BURROUGHS CREEK 8750 5.5 4.8 115 5.7 6.2 92 CASTLE CREEK 8400 2.8 -M * 4.3 -M * COLD SPRINGS 9630 3.6 2.6 138 4.4 4.3 102 DEER PARK 9700 6.3 4.9 129 7.3 7.0 104 HOBBS PARK 10100 5.3 5.7 93 4.9 5.3 92 KIRWIN 9550 4.1 3.9 105 5.3 4.7 113 LITTLE WARM 9370 4.7 3.6 131 6.0 5.1 118 OWL CREEK 8975 2.0 2.1 95 2.4 2.5 96 SOUTH PASS 9040 4.9 5.1 96 4.4 6.9 64 ST. LAWRENCE ALT 8620 1.2 2.6 46 3.1 3.7 84 TOGWOTEE PASS 9580 9.5 8.7 109 10.2 9.2 111 TOWNSEND CREEK 8700 1.3 3.1 42 3.5 5.0 70 ----- ----- Basin wide percent 103 95 BIGHORN BASIN BALD MTN. 9380 4.6 6.6 70 3.5 6.3 56 BEAR TRAP MEADOW 8200 3.4 1.9 179 4.6 3.6 128 BONE SPRINGS DIV 9350 5.2 6.0 87 5.1 5.8 88 GRAVE SPRINGS 8550 1.7 2.4 71 3.1 4.2 74 KIRWIN 9550 4.1 3.9 105 5.3 4.7 113 MARQUETTE 8760 1.7 -M * 3.1 -M * MIDDLE POWDER 7760 3.0 3.5 86 5.9 5.1 116 OWL CREEK 8975 2.0 2.1 95 2.4 2.5 96 POWDER RIVER PASS 9480 5.1 3.6 142 5.7 4.8 119 SHELL CREEK 9580 6.5 5.6 116 6.3 5.4 117 TIMBER CREEK 7950 .7 2.0 35 2.7 3.5 77 ----- ----- Basin wide percent 97 97 SHOSHONE RIVER BLACKWATER 9780 10.4 8.2 127 10.2 8.1 126 EVENING STAR 9200 11.4 8.6 133 13.5 10.5 129 MARQUETTE 8760 1.7 -M * 3.1 -M * SYLVAN ROAD 7120 3.9 3.9 100 8.5 7.3 116 YOUNTS PEAK 8350 6.0 5.2 115 5.8 6.2 94 ----- ----- Basin wide percent 122 118 POWDER RIVER BEAR TRAP MEADOW 8200 3.4 1.9 179 4.6 3.6 128 CLOUD PEAK RESERVOIR 9860 4.2 4.7 89 5.3 5.3 100 GRAVE SPRINGS 8550 1.7 2.4 71 3.1 4.2 74 HANSEN SAWMILL 8360 2.4 2.1 114 4.0 3.5 114 MIDDLE POWDER 7760 3.0 3.5 86 5.9 5.1 116 POWDER RIVER PASS 9480 5.1 3.6 142 5.7 4.8 119 SOLDIER PARK 8720 1.5 -M * 3.7 -M * ----- ----- Basin wide percent 109 108 TONGUE RIVER BIG GOOSE 7990 2.2 3.0 73 3.7 4.5 82 BONE SPRINGS DIV 9350 5.2 6.0 87 5.1 5.8 88 BURGESS JUNCTION 7880 2.3 3.7 62 3.0 4.8 62 DOME LAKE 8880 3.3 4.3 77 5.2 5.6 93 LITTLE GOOSE 8870 2.6 -M * 5.4 -M * SUCKER CREEK 8880 3.6 4.0 90 3.9 5.5 71 TIE CREEK 6870 .6 1.1 55 3.7 4.6 80 ----- ----- Basin wide percent 78 80 BELLE FOURCHE COLE CANYON 5910 1.0 1.1 91 2.8 4.0 70 ----- ----- Basin wide percent 91 70 CHEYENNE RIVER BASIN BLIND PARK 6890 1.3 2.0 65 3.5 4.9 71 NORTH RAPID CREEK 6130 1.2 2.3 52 2.7 4.1 66 ----- ----- Basin wide percent 58 69 UPPER N. PLATTE ARAPAHO RIDGE 10960 4.3 -M * 4.8 -M * BLACKHALL MTN 9820 5.5 -M * 6.9 -M * COLUMBINE 9160 3.7 6.1 61 5.3 9.0 59 DIVIDE PEAK 8880 2.9 5.9 49 4.7 8.2 57 JOE WRIGHT 10120 7.0 7.5 93 8.4 9.8 86 LAPRELE CREEK 8375 .5 2.9 17 -M 4.8 * MED BOW 10500 6.1 -M * 8.7 -M * NORTH FRENCH CREEK 10130 5.7 8.9 64 6.4 9.4 68 NEVER SUMMER 10280 5.3 -M * 4.6 -M * OLD BATTLE 10000 6.4 9.6 67 7.6 12.7 60 RAWAH 9020 2.2 -M * 5.0 -M * SAGE CREEK BASIN 7850 2.2 -M * 3.1 -M * SAND LAKE 10050 5.5 8.9 62 6.1 9.0 68 SOUTH BRUSH CREEK 8440 2.2 3.4 65 3.8 5.8 66 TOWER 10500 6.6 14.8 45 7.7 -M * WEBBER SPRINGS 9250 4.7 7.3 64 6.0 9.7 62 WILLOW CREEK PASS 9540 3.5 -M * 4.6 5.4 85 ZIRKEL 9340 -M -M * 6.9 -M * ----- ----- Basin wide percent 60 67 SWEETWATER DEER PARK 9700 6.3 4.9 129 7.3 7.0 104 LARSEN CREEK 9000 3.5 -M * 6.5 -M * SOUTH PASS 9040 4.9 5.1 96 4.4 6.9 64 ----- ----- Basin wide percent 112 84 LOWER N. PLATTE CASPER MTN. 7900 -M 4.3 * -M 6.2 * LAPRELE CREEK 8375 .5 2.9 17 -M 4.8 * RENO HILL 8400 1.4 4.7 30 2.8 5.9 47 WINDY PEAK 7900 .4 2.3 17 2.8 4.3 65 ----- ----- Basin wide percent 23 55 LARAMIE RIVER BROOKLYN LAKE 10240 4.0 6.0 67 4.1 7.2 57 CINNABAR PARK 9574 3.7 -M * 4.7 -M * CROW CREEK 8330 .3 -M * 2.5 -M * DEADMAN HILL 10220 4.2 5.4 78 4.0 6.3 63 RAWAH 9020 2.2 -M * 5.0 -M * ROACH 9700 3.1 4.9 63 4.5 7.0 64 ----- ----- Basin wide percent 69 61 S. PLATTE BLACK MOUNTAIN 8920 1.6 -M * 2.9 -M * CROW CREEK 8330 .3 -M * 2.5 -M * DEADMAN HILL 10220 4.2 5.4 78 4.0 6.3 63 ----- ----- Basin wide percent 78* 63* LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 .4 2.5 16 2.6 5.6 46 DIVIDE PEAK 8880 2.9 5.9 49 4.7 8.2 57 ELK RIVER 8700 2.8 4.5 62 4.1 7.1 58 LITTLE SNAKE RIVER 8915 4.0 -M * 7.6 -M * OLD BATTLE 10000 6.4 9.6 67 7.6 12.7 60 SAGE CREEK BASIN 7850 2.2 -M * 3.1 -M * SANDSTONE RS 8150 2.4 3.3 73 2.8 6.8 41 WHISKEY PARK 8950 4.9 7.0 70 6.7 9.4 71 ----- ----- Basin wide percent 60 57 UPPER GREEN RIVER BIG SANDY OPENING 9080 5.2 4.5 116 5.7 5.0 114 BLIND BULL SUM 8650 -M 6.8 * -M 7.4 * EAST RIM DIVIDE 7930 3.1 2.8 111 3.7 4.3 86 ELKHART PARK G.S. 9400 4.2 4.1 102 5.0 5.1 98 GROS VENTRE SUMMIT 8750 5.0 4.6 109 5.5 5.0 110 GUNSIGHT PASS 9820 5.4 4.2 129 5.8 5.0 116 KENDALL R.S. 7740 4.4 3.4 129 6.1 5.1 120 LOOMIS PARK 8240 4.6 4.4 105 6.2 6.2 100 NEW FORK LAKE 8340 2.8 3.2 88 3.2 4.1 78 POCKET CREEK 9360 6.3 -M * 6.3 -M * SNIDER BASIN 8060 3.2 3.5 91 5.1 5.0 102 SPRING CREEK DIVIDE 9000 8.0 7.1 113 8.6 8.5 101 TRIPLE PEAK 8500 6.7 6.1 110 9.2 8.7 106 ----- ----- Basin wide percent 110 103 LOWER GREEN RIVER BLACKS FORK JCT 8870 2.5 -M * 4.3 -M * BUCK PASTURE 9700 4.3 -M * 6.4 -M * EF BLACKS FORK GS 9308 4.1 -M * 4.4 -M * HAMS FORK 7840 2.8 3.2 88 3.9 4.1 95 HEWINTA 9519 2.9 2.6 112 4.7 5.5 85 HICKERSON PARK 9145 1.7 1.9 89 3.3 4.3 77 HOLE-IN-ROCK 9150 3.2 2.2 145 3.9 4.0 98 INDIAN CREEK 9425 7.4 7.4 100 6.9 7.6 91 KELLEY R.S. 8180 4.0 4.2 95 5.3 6.5 82 SPIRIT LK 10223 3.3 3.9 85 6.2 8.7 71 STEEL CREEK PARK 10200 3.1 5.1 61 5.1 6.2 82 ----- ----- Basin wide percent 93 84 UPPER BEAR RIVER BEAR RIVER RS 8500 2.8 -M * 4.6 -M * BUG LAKE 7950 5.2 4.8 108 7.2 7.2 100 BURTS MILLER RANCH 8000 1.7 1.7 100 3.2 4.9 65 CHALK CREEK #1 8993 6.3 7.8 81 8.6 9.5 91 HAYDEN FORK 9212 3.6 3.9 92 6.3 7.7 82 KELLEY R.S. 8180 4.0 4.2 95 5.3 6.5 82 LILY LAKE 9156 3.2 4.0 80 4.7 6.6 71 MONTE CRISTO 8960 7.4 7.4 100 9.8 9.2 107 SALT RIVER SUMMIT 7760 3.2 3.1 103 6.2 5.7 109 ----- ----- Basin wide percent 94 90 ----------------------------------------------------------------------------- -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 wide percent 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. Reference period for comparison of conditions is 1981-2010. Provisional data, subject to revision. ---------------------------------------------------------------------------- -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.