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 14 , 2013 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 7.1 5.3 134 8.4 7.9 106 BLACK BEAR 8170 13.7 12.8 107 13.9 13.9 100 BLIND BULL SUM 8650 8.8 6.8 129 7.6 7.4 103 COTTONWOOD CREEK 7670 6.7 6.2 108 8.2 8.8 93 EAST RIM DIVIDE 7930 4.7 2.8 168 4.7 4.3 109 GRAND TARGHEE 9260 17.1 12.4 138 12.8 11.6 110 GRANITE CREEK 6770 5.3 4.1 129 6.8 7.2 94 GRASSY LAKE 7265 9.6 9.0 107 11.5 12.9 89 GROS VENTRE SUMMIT 8750 5.8 4.6 126 5.6 5.0 112 GUNSIGHT PASS 9820 6.4 4.2 152 6.4 5.0 128 LEWIS LAKE DIVIDE 7850 8.7 9.4 93 11.1 13.0 85 PHILLIPS BENCH 8200 8.0 7.8 103 9.1 9.8 93 SALT RIVER SUMMIT 7760 3.5 3.1 113 5.7 5.8 98 SNAKE RIVER STATION 6920 5.4 4.5 120 7.6 8.7 87 SPRING CREEK DIVIDE 9000 7.3 7.1 103 7.9 8.5 93 THUMB DIVIDE 7980 4.6 4.2 110 5.5 6.9 80 TOGWOTEE PASS 9580 9.5 8.7 109 9.0 9.2 98 TWO OCEAN PLATEAU 9240 12.1 10.3 117 10.1 10.2 99 WILLOW CREEK 8380 8.8 7.8 113 12.3 12.3 100 YOUNTS PEAK 8350 -M 5.2 * -M 6.2 * ----- ----- Basin Index (%) 117 98 MADISON-GALLATIN BLACK BEAR 8170 13.7 12.8 107 13.9 13.9 100 CANYON 7870 4.0 3.7 108 5.6 6.0 93 MADISON PLATEAU 7750 7.3 7.3 100 8.8 9.6 92 WEST YELLOWSTONE 6700 3.9 2.9 134 5.0 5.3 94 WHISKEY CREEK 6800 5.0 4.4 114 6.9 7.7 90 ----- ----- Basin Index (%) 109 95 YELLOWSTONE BEARTOOTH LAKE 9360 8.5 7.5 113 7.2 7.0 103 BURNT MTN 5880 3.7 1.5 247 9.4 5.9 159 CANYON 7870 4.0 3.7 108 5.6 6.0 93 COLE CREEK 7850 7.4 5.4 137 6.1 5.6 109 EVENING STAR 9200 11.7 8.6 136 12.1 10.5 115 FISHER CREEK 9100 12.7 11.0 115 11.4 11.8 97 NORTHEAST ENTRANCE 7350 3.2 2.5 128 4.2 5.0 84 PARKER PEAK 9400 9.8 7.5 131 9.3 6.9 135 SYLVAN LAKE 8420 7.7 6.7 115 9.5 9.0 106 THUMB DIVIDE 7980 4.6 4.2 110 5.5 6.9 80 TWO OCEAN PLATEAU 9240 12.1 10.3 117 10.1 10.2 99 WHITE MILL 8700 9.5 7.4 128 8.2 8.9 92 WOLVERINE 7650 4.0 3.2 125 4.2 5.0 84 ----- ----- Basin Index (%) 124 104 WIND RIVER BURROUGHS CREEK 8750 -M 4.8 * -M 6.2 * CASTLE CREEK 8400 2.6 -M * 4.2 -M * COLD SPRINGS 9630 4.1 2.6 158 5.8 4.3 135 DEER PARK 9700 4.5 4.9 92 5.9 7.0 84 HOBBS PARK 10100 5.7 5.7 100 5.5 5.3 104 KIRWIN 9550 6.3 3.9 162 5.3 4.7 113 LITTLE WARM 9370 5.1 3.6 142 6.5 5.1 127 OWL CREEK 8975 3.0 2.1 143 3.1 2.5 124 SOUTH PASS 9040 4.8 5.1 94 5.3 6.9 77 ST. LAWRENCE ALT 8620 2.0 2.6 77 4.5 3.8 118 TOGWOTEE PASS 9580 9.5 8.7 109 9.0 9.2 98 TOWNSEND CREEK 8700 2.3 3.1 74 3.7 5.0 74 ----- ----- Basin Index (%) 112 101 BIGHORN BASIN BALD MTN. 9380 9.1 6.6 138 7.7 6.3 122 BEAR TRAP MEADOW 8200 3.7 1.9 195 5.1 3.6 142 BONE SPRINGS DIV 9350 6.9 6.0 115 5.7 5.8 98 GRAVE SPRINGS 8550 4.0 2.4 167 5.4 4.2 129 KIRWIN 9550 6.3 3.9 162 5.3 4.7 113 MARQUETTE 8760 4.3 -M * 5.6 -M * MIDDLE POWDER 7760 5.7 3.5 163 6.1 5.1 120 OWL CREEK 8975 3.0 2.1 143 3.1 2.5 124 POWDER RIVER PASS 9480 5.2 3.6 144 5.5 4.8 115 SHELL CREEK 9580 6.5 5.6 116 5.6 5.4 104 TIMBER CREEK 7950 3.2 2.0 160 4.7 3.5 134 ----- ----- Basin Index (%) 143 118 SHOSHONE RIVER BLACKWATER 9780 11.3 8.2 138 8.9 8.1 110 EVENING STAR 9200 11.7 8.6 136 12.1 10.5 115 MARQUETTE 8760 4.3 -M * 5.6 -M * SYLVAN ROAD 7120 4.7 3.9 121 8.1 7.3 111 YOUNTS PEAK 8350 -M 5.2 * -M 6.2 * ----- ----- Basin Index (%) 134 112 POWDER RIVER BEAR TRAP MEADOW 8200 3.7 1.9 195 5.1 3.6 142 CLOUD PEAK RESERVOIR 9860 6.3 4.7 134 6.5 5.3 123 GRAVE SPRINGS 8550 4.0 2.4 167 5.4 4.2 129 HANSEN SAWMILL 8360 3.4 2.1 162 5.1 3.5 146 MIDDLE POWDER 7760 5.7 3.5 163 6.1 5.1 120 POWDER RIVER PASS 9480 5.2 3.6 144 5.5 4.8 115 SOLDIER PARK 8720 3.0 -M * 5.0 -M * ----- ----- Basin Index (%) 155 127 TONGUE RIVER BIG GOOSE 7990 3.8 3.0 127 6.4 4.5 142 BONE SPRINGS DIV 9350 6.9 6.0 115 5.7 5.8 98 BURGESS JUNCTION 7880 4.8 3.7 130 6.5 4.8 135 DOME LAKE 8880 2.8 4.3 65 4.9 5.6 88 LITTLE GOOSE 8870 -M -M * -M -M * SUCKER CREEK 8880 6.4 4.0 160 7.7 5.5 140 TIE CREEK 6870 2.0 1.1 182 6.2 4.6 135 ----- ----- Basin Index (%) 121 121 BELLE FOURCHE COLE CANYON 5910 2.4 1.1 218 9.0 4.0 225 ----- ----- Basin Index (%) 218 225 CHEYENNE RIVER BASIN BLIND PARK 6890 3.4 2.0 170 9.3 4.9 190 NORTH RAPID CREEK 6130 3.7 2.3 161 9.1 4.1 222 ----- ----- Basin Index (%) 165 204 UPPER N. PLATTE ARAPAHO RIDGE 10960 8.4 7.1 118 8.6 8.8 98 BLACKHALL MTN 9820 10.7 -M * 12.2 -M * COLUMBINE 9160 6.3 6.1 103 9.1 9.0 101 DIVIDE PEAK 8880 6.3 5.9 107 9.7 8.2 118 JOE WRIGHT 10120 6.4 7.5 85 10.2 9.8 104 LAPRELE CREEK 8375 2.2 2.9 76 4.5 4.8 94 MED BOW 10500 9.4 -M * 12.0 -M * NORTH FRENCH CREEK 10130 9.6 8.9 108 11.3 9.4 120 NEVER SUMMER 10280 8.0 6.4 125 7.5 -M * OLD BATTLE 10000 10.1 9.6 105 12.0 12.8 94 RAWAH 9020 4.7 3.3 142 7.6 5.9 129 SAGE CREEK BASIN 7850 3.5 3.8 92 5.6 5.6 100 SAND LAKE 10050 9.6 8.9 108 9.9 9.0 110 SOUTH BRUSH CREEK 8440 4.5 3.4 132 7.1 5.8 122 TOWER 10500 13.2 14.8 89 15.6 14.6 107 WEBBER SPRINGS 9250 6.6 7.3 90 9.2 9.7 95 WILLOW CREEK PASS 9540 6.0 4.2 143 6.7 5.4 124 ZIRKEL 9340 7.7 6.8 113 10.8 10.7 101 ----- ----- Basin Index (%) 106 106 SWEETWATER DEER PARK 9700 4.5 4.9 92 5.9 7.0 84 LARSEN CREEK 9000 1.5 -M * 4.4 -M * SOUTH PASS 9040 4.8 5.1 94 5.3 6.9 77 ----- ----- Basin Index (%) 93 81 LOWER N. PLATTE CASPER MTN. 7900 6.6 4.3 153 7.6 6.2 123 LAPRELE CREEK 8375 2.2 2.9 76 4.5 4.8 94 RENO HILL 8400 7.0 4.7 149 9.2 5.9 156 WINDY PEAK 7900 2.1 2.3 91 4.7 4.3 109 ----- ----- Basin Index (%) 126 123 LARAMIE RIVER BROOKLYN LAKE 10240 6.8 6.0 113 7.7 7.2 107 CINNABAR PARK 9574 6.6 7.1 93 8.6 9.0 96 CROW CREEK 8330 2.1 3.5 60 4.6 4.4 105 DEADMAN HILL 10220 7.7 5.4 143 8.2 6.3 130 RAWAH 9020 4.7 3.3 142 7.6 5.9 129 ROACH 9700 5.9 4.9 120 8.1 7.0 116 ----- ----- Basin Index (%) 112 113 S. PLATTE BLACK MOUNTAIN 8920 4.2 -M * 5.6 -M * CROW CREEK 8330 2.1 3.5 60 4.6 4.4 105 DEADMAN HILL 10220 7.7 5.4 143 8.2 6.3 130 ----- ----- Basin Index (%) 110 120 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 4.1 2.5 164 7.6 5.6 136 DIVIDE PEAK 8880 6.3 5.9 107 9.7 8.2 118 ELK RIVER 8700 5.8 4.5 129 8.6 7.1 121 LITTLE SNAKE RIVER 8915 7.1 5.3 134 12.3 11.5 107 OLD BATTLE 10000 10.1 9.6 105 12.0 12.8 94 SAGE CREEK BASIN 7850 3.5 3.8 92 5.6 5.6 100 SANDSTONE RS 8150 3.9 3.3 118 7.7 6.8 113 WHISKEY PARK 8950 9.9 7.0 141 12.8 9.4 136 ----- ----- Basin Index (%) 121 114 UPPER GREEN RIVER BIG SANDY OPENING 9080 3.9 4.5 87 4.0 5.0 80 BLIND BULL SUM 8650 8.8 6.8 129 7.6 7.4 103 EAST RIM DIVIDE 7930 4.7 2.8 168 4.7 4.3 109 ELKHART PARK G.S. 9400 5.3 4.1 129 5.7 5.1 112 GROS VENTRE SUMMIT 8750 5.8 4.6 126 5.6 5.0 112 GUNSIGHT PASS 9820 6.4 4.2 152 6.4 5.0 128 KENDALL R.S. 7740 5.1 3.4 150 6.2 5.1 122 LOOMIS PARK 8240 -M 4.4 * -M 6.2 * NEW FORK LAKE 8340 3.9 3.2 122 4.3 4.1 105 POCKET CREEK 9360 4.3 -M * 3.8 -M * SNIDER BASIN 8060 4.1 3.5 117 5.1 5.0 102 SPRING CREEK DIVIDE 9000 7.3 7.1 103 7.9 8.5 93 TRIPLE PEAK 8500 6.7 6.1 110 8.5 8.7 98 ----- ----- Basin Index (%) 123 104 LOWER GREEN RIVER BLACKS FORK JCT 8870 1.8 -M * 4.7 -M * BUCK PASTURE 9700 3.0 -M * 5.8 -M * EF BLACKS FORK GS 9360 1.6 -M * 4.1 -M * HAMS FORK 7840 1.7 3.2 53 3.9 4.1 95 HEWINTA 9519 1.7 2.6 65 4.9 5.5 89 HICKERSON PARK 9145 3.0 1.9 158 4.6 4.3 107 HOLE-IN-ROCK 9150 2.1 2.2 95 4.0 4.0 100 INDIAN CREEK 9425 5.9 7.4 80 6.3 7.6 83 KELLEY R.S. 8180 3.8 4.2 90 5.5 6.5 85 SPIRIT LK 10235 3.5 -M * 6.1 -M * STEEL CREEK PARK 10200 7.2 5.1 141 5.9 6.2 95 ----- ----- Basin Index (%) 95 92 UPPER BEAR RIVER BEAR RIVER RS 8777 2.1 -M * 4.7 -M * BUG LAKE 7950 4.3 4.8 90 5.2 7.2 72 BURTS MILLER RANCH 8000 2.1 -M * 2.9 -M * CHALK CREEK #1 8993 6.7 7.8 86 8.0 9.5 84 HAYDEN FORK 9212 3.0 3.9 77 6.3 7.7 82 KELLEY R.S. 8180 3.8 4.2 90 5.5 6.5 85 LILY LAKE 9156 3.2 4.0 80 6.1 6.6 92 MONTE CRISTO 8960 5.5 7.4 74 6.8 9.2 74 SALT RIVER SUMMIT 7760 3.5 3.1 113 5.7 5.8 98 ----- ----- Basin Index (%) 85 83 ----------------------------------------------------------------------------- -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.