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 SATURDAY: DECEMBER 7 , 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 4.5 144 8.2 7.0 117 BLACK BEAR 8170 13.0 10.6 123 12.8 12.1 106 BLIND BULL SUM 8650 8.4 6.0 140 7.3 6.5 112 COTTONWOOD CREEK 7670 6.5 5.3 123 8.0 7.8 103 EAST RIM DIVIDE 7930 3.4 2.2 155 4.4 3.8 116 GRAND TARGHEE 9260 16.3 10.2 160 11.8 10.4 113 GRANITE CREEK 6770 4.9 3.2 153 6.4 6.2 103 GRASSY LAKE 7265 8.9 7.4 120 10.2 11.3 90 GROS VENTRE SUMMIT 8750 5.5 4.4 125 5.2 4.5 116 GUNSIGHT PASS 9820 6.0 3.6 167 5.8 4.6 126 LEWIS LAKE DIVIDE 7850 8.4 8.4 100 10.3 11.4 90 PHILLIPS BENCH 8200 7.3 6.8 107 8.5 8.6 99 SALT RIVER SUMMIT 7760 3.1 2.5 124 5.3 5.0 106 SNAKE RIVER STATION 6920 5.1 3.6 142 7.3 7.6 96 SPRING CREEK DIVIDE 9000 7.0 6.0 117 7.3 7.5 97 THUMB DIVIDE 7980 4.0 3.7 108 4.9 6.1 80 TOGWOTEE PASS 9580 9.0 8.0 112 8.4 8.2 102 TWO OCEAN PLATEAU 9240 11.7 9.5 123 9.5 9.2 103 WILLOW CREEK 8380 8.3 6.7 124 11.8 10.9 108 YOUNTS PEAK 8350 -M 4.7 * -M 5.7 * ----- ----- Basin Index (%) 127 103 MADISON-GALLATIN BLACK BEAR 8170 13.0 10.6 123 12.8 12.1 106 CANYON 7870 3.8 3.2 119 5.3 5.4 98 MADISON PLATEAU 7750 6.7 6.3 106 8.4 8.3 101 WEST YELLOWSTONE 6700 3.3 2.5 132 4.8 4.8 100 WHISKEY CREEK 6800 4.5 3.9 115 6.4 6.8 94 ----- ----- Basin Index (%) 118 101 YELLOWSTONE BEARTOOTH LAKE 9360 7.9 6.9 114 6.4 6.3 102 BURNT MTN 5880 3.2 1.4 229 -M 5.5 * CANYON 7870 3.8 3.2 119 5.3 5.4 98 COLE CREEK 7850 6.4 4.8 133 5.5 5.3 104 EVENING STAR 9200 11.3 8.0 141 11.1 9.4 118 FISHER CREEK 9100 11.9 9.6 124 10.1 10.5 96 NORTHEAST ENTRANCE 7350 3.1 2.1 148 3.8 4.5 84 PARKER PEAK 9400 -M 6.8 * 8.4 6.3 133 SYLVAN LAKE 8420 6.8 6.0 113 8.5 8.2 104 THUMB DIVIDE 7980 4.0 3.7 108 4.9 6.1 80 TWO OCEAN PLATEAU 9240 11.7 9.5 123 9.5 9.2 103 WHITE MILL 8700 9.2 6.8 135 7.3 8.0 91 WOLVERINE 7650 3.5 2.6 135 3.6 4.6 78 ----- ----- Basin Index (%) 128 101 WIND RIVER BURROUGHS CREEK 8750 -M 4.3 * -M 5.6 * CASTLE CREEK 8400 2.4 -M * 3.9 -M * COLD SPRINGS 9630 3.8 2.5 152 6.0 3.9 154 DEER PARK 9700 4.6 4.5 102 5.7 6.2 92 HOBBS PARK 10100 5.7 5.0 114 5.4 4.8 112 KIRWIN 9550 6.2 3.7 168 4.9 4.3 114 LITTLE WARM 9370 5.0 3.3 152 5.9 4.7 126 OWL CREEK 8975 2.9 1.8 161 2.9 2.3 126 SOUTH PASS 9040 4.6 4.4 105 5.0 6.0 83 ST. LAWRENCE ALT 8620 1.8 2.3 78 4.3 3.4 126 TOGWOTEE PASS 9580 9.0 8.0 112 8.4 8.2 102 TOWNSEND CREEK 8700 2.1 2.7 78 3.0 4.6 65 ----- ----- Basin Index (%) 120 106 BIGHORN BASIN BALD MTN. 9380 8.1 6.2 131 6.6 5.7 116 BEAR TRAP MEADOW 8200 3.4 1.7 200 4.5 3.4 132 BONE SPRINGS DIV 9350 6.4 5.5 116 4.8 5.3 91 GRAVE SPRINGS 8550 -M 2.1 * 5.3 3.9 136 KIRWIN 9550 6.2 3.7 168 4.9 4.3 114 MARQUETTE 8760 -M -M * 5.4 -M * MIDDLE POWDER 7760 5.1 3.2 159 5.6 4.7 119 OWL CREEK 8975 2.9 1.8 161 2.9 2.3 126 POWDER RIVER PASS 9480 4.9 3.3 148 4.9 4.5 109 SHELL CREEK 9580 6.0 5.2 115 5.5 5.0 110 TIMBER CREEK 7950 2.9 1.8 161 4.5 3.4 132 ----- ----- Basin Index (%) 142 116 SHOSHONE RIVER BLACKWATER 9780 10.7 7.5 143 7.8 7.3 107 EVENING STAR 9200 11.3 8.0 141 11.1 9.4 118 MARQUETTE 8760 -M -M * 5.4 -M * SYLVAN ROAD 7120 4.3 3.3 130 7.3 6.6 111 YOUNTS PEAK 8350 -M 4.7 * -M 5.7 * ----- ----- Basin Index (%) 140 112 POWDER RIVER BEAR TRAP MEADOW 8200 3.4 1.7 200 4.5 3.4 132 CLOUD PEAK RESERVOIR 9860 5.4 4.2 129 5.6 5.0 112 GRAVE SPRINGS 8550 -M 2.1 * 5.3 3.9 136 HANSEN SAWMILL 8360 3.1 1.8 172 4.8 3.2 150 MIDDLE POWDER 7760 5.1 3.2 159 5.6 4.7 119 POWDER RIVER PASS 9480 4.9 3.3 148 4.9 4.5 109 SOLDIER PARK 8720 2.1 -M * 4.8 -M * ----- ----- Basin Index (%) 154 124 TONGUE RIVER BIG GOOSE 7990 3.1 2.7 115 5.7 4.2 136 BONE SPRINGS DIV 9350 6.4 5.5 116 4.8 5.3 91 BURGESS JUNCTION 7880 4.5 3.4 132 6.0 4.5 133 DOME LAKE 8880 1.7 4.0 42 4.6 5.2 88 LITTLE GOOSE 8870 4.2 -M * 6.4 -M * SUCKER CREEK 8880 5.9 3.6 164 6.8 5.1 133 TIE CREEK 6870 1.5 1.0 150 5.3 4.4 120 ----- ----- Basin Index (%) 114 116 BELLE FOURCHE COLE CANYON 5910 -M 1.0 * -M 3.8 * ----- ----- Basin Index (%) * * CHEYENNE RIVER BASIN BLIND PARK 6890 2.9 1.9 153 9.2 4.7 196 NORTH RAPID CREEK 6130 3.3 1.8 183 8.6 3.9 221 ----- ----- Basin Index (%) 168 207 UPPER N. PLATTE ARAPAHO RIDGE 10960 8.1 6.2 131 8.3 7.7 108 BLACKHALL MTN 9820 10.1 -M * 11.5 -M * COLUMBINE 9160 5.8 5.1 114 8.4 7.9 106 DIVIDE PEAK 8880 5.9 5.3 111 9.1 7.4 123 JOE WRIGHT 10120 5.2 6.6 79 9.7 8.8 110 LAPRELE CREEK 8375 1.5 2.4 62 4.2 4.4 95 MED BOW 10500 8.8 -M * 11.0 -M * NORTH FRENCH CREEK 10130 8.9 7.9 113 10.6 8.5 125 NEVER SUMMER 10280 7.3 5.7 128 7.2 -M * OLD BATTLE 10000 9.3 8.6 108 10.6 11.2 95 RAWAH 9020 4.5 2.9 155 7.3 5.4 135 SAGE CREEK BASIN 7850 3.0 2.8 107 5.3 4.9 108 SAND LAKE 10050 8.5 7.9 108 9.1 8.1 112 SOUTH BRUSH CREEK 8440 4.1 3.1 132 6.4 5.2 123 TOWER 10500 12.6 12.6 100 14.3 12.8 112 WEBBER SPRINGS 9250 6.0 5.7 105 8.5 8.5 100 WILLOW CREEK PASS 9540 5.7 3.8 150 6.2 4.8 129 ZIRKEL 9340 7.2 5.3 136 10.3 9.2 112 ----- ----- Basin Index (%) 113 112 SWEETWATER DEER PARK 9700 4.6 4.5 102 5.7 6.2 92 LARSEN CREEK 9000 1.5 -M * 4.2 -M * SOUTH PASS 9040 4.6 4.4 105 5.0 6.0 83 ----- ----- Basin Index (%) 103 88 LOWER N. PLATTE CASPER MTN. 7900 5.8 3.9 149 7.0 5.8 121 LAPRELE CREEK 8375 1.5 2.4 62 4.2 4.4 95 RENO HILL 8400 6.6 4.1 161 8.6 5.4 159 WINDY PEAK 7900 1.7 2.0 85 4.6 3.9 118 ----- ----- Basin Index (%) 126 125 LARAMIE RIVER BROOKLYN LAKE 10240 6.0 4.9 122 7.1 6.4 111 CINNABAR PARK 9574 6.1 5.9 103 7.7 7.6 101 CROW CREEK 8330 1.9 2.8 68 4.5 3.9 115 DEADMAN HILL 10220 7.2 5.1 141 7.9 5.7 139 RAWAH 9020 4.5 2.9 155 7.3 5.4 135 ROACH 9700 5.7 4.5 127 7.7 6.2 124 ----- ----- Basin Index (%) 120 120 S. PLATTE BLACK MOUNTAIN 8920 3.9 -M * 5.6 -M * CROW CREEK 8330 1.9 2.8 68 4.5 3.9 115 DEADMAN HILL 10220 7.2 5.1 141 7.9 5.7 139 ----- ----- Basin Index (%) 115 129 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 3.7 2.0 185 6.9 5.0 138 DIVIDE PEAK 8880 5.9 5.3 111 9.1 7.4 123 ELK RIVER 8700 5.3 3.6 147 7.8 6.3 124 LITTLE SNAKE RIVER 8915 6.4 4.3 149 11.4 9.9 115 OLD BATTLE 10000 9.3 8.6 108 10.6 11.2 95 SAGE CREEK BASIN 7850 3.0 2.8 107 5.3 4.9 108 SANDSTONE RS 8150 3.6 2.6 138 7.1 5.9 120 WHISKEY PARK 8950 9.4 5.9 159 12.1 8.2 148 ----- ----- Basin Index (%) 133 120 UPPER GREEN RIVER BIG SANDY OPENING 9080 3.5 3.9 90 3.9 4.5 87 BLIND BULL SUM 8650 8.4 6.0 140 7.3 6.5 112 EAST RIM DIVIDE 7930 3.4 2.2 155 4.4 3.8 116 ELKHART PARK G.S. 9400 4.8 3.7 130 5.2 4.6 113 GROS VENTRE SUMMIT 8750 5.5 4.4 125 5.2 4.5 116 GUNSIGHT PASS 9820 6.0 3.6 167 5.8 4.6 126 KENDALL R.S. 7740 5.1 3.0 170 5.4 4.5 120 LOOMIS PARK 8240 5.1 3.6 142 6.4 5.5 116 NEW FORK LAKE 8340 3.2 2.6 123 3.9 3.7 105 POCKET CREEK 9360 4.5 -M * 3.7 -M * SNIDER BASIN 8060 3.8 3.0 127 4.4 4.5 98 SPRING CREEK DIVIDE 9000 7.0 6.0 117 7.3 7.5 97 TRIPLE PEAK 8500 6.3 5.5 115 7.8 7.7 101 ----- ----- Basin Index (%) 131 108 LOWER GREEN RIVER BLACKS FORK JCT 8870 1.3 -M * 4.5 -M * BUCK PASTURE 9700 2.7 -M * 5.6 -M * EF BLACKS FORK GS 9360 1.7 -M * 4.1 -M * HAMS FORK 7840 1.4 2.7 52 3.7 3.7 100 HEWINTA 9519 1.4 2.1 67 4.6 5.0 92 HICKERSON PARK 9145 2.6 1.7 153 3.8 4.0 95 HOLE-IN-ROCK 9150 1.6 1.8 89 3.9 3.8 103 INDIAN CREEK 9425 5.3 6.5 82 5.7 6.7 85 KELLEY R.S. 8180 3.4 3.6 94 4.7 5.7 82 SPIRIT LK 10235 -M -M * 5.5 -M * STEEL CREEK PARK 10200 7.9 4.5 176 5.7 5.7 100 ----- ----- Basin Index (%) 103 93 UPPER BEAR RIVER BEAR RIVER RS 8777 1.9 -M * 4.4 -M * BUG LAKE 7950 3.5 3.9 90 4.8 6.3 76 BURTS MILLER RANCH 8000 1.7 -M * 2.4 -M * CHALK CREEK #1 8993 6.1 6.6 92 7.6 8.4 90 HAYDEN FORK 9212 2.7 3.3 82 6.1 6.8 90 KELLEY R.S. 8180 3.4 3.6 94 4.7 5.7 82 LILY LAKE 9156 3.0 3.3 91 5.9 6.0 98 MONTE CRISTO 8960 5.0 6.5 77 6.2 8.1 77 SALT RIVER SUMMIT 7760 3.1 2.5 124 5.3 5.0 106 ----- ----- Basin Index (%) 90 88 ----------------------------------------------------------------------------- -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.