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: JANUARY 18 , 2014 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 10.5 9.8 107 11.8 12.3 96 BLACK BEAR 8170 20.3 21.1 96 19.5 21.8 89 BLIND BULL SUM 8650 14.1 12.4 114 10.4 11.5 90 COTTONWOOD CREEK 7670 12.5 10.8 116 14.2 14.0 101 EAST RIM DIVIDE 7930 7.1 5.8 122 6.2 6.8 91 GRAND TARGHEE 9260 24.2 21.3 114 17.9 18.0 99 GRANITE CREEK 6770 7.9 8.8 90 9.2 11.9 77 GRASSY LAKE 7265 17.0 16.9 101 18.2 21.0 87 GROS VENTRE SUMMIT 8750 7.6 7.5 101 6.7 7.4 91 GUNSIGHT PASS 9820 8.8 7.5 117 8.5 7.9 108 LEWIS LAKE DIVIDE 7850 14.2 16.8 85 17.2 20.5 84 PHILLIPS BENCH 8200 12.8 15.1 85 13.7 16.1 85 SALT RIVER SUMMIT 7760 7.1 6.5 109 9.0 9.4 96 SNAKE RIVER STATION 6920 8.9 9.2 97 11.6 13.6 85 SPRING CREEK DIVIDE 9000 13.5 12.3 110 13.6 13.7 99 THUMB DIVIDE 7980 7.4 8.1 91 7.8 10.8 72 TOGWOTEE PASS 9580 14.8 13.1 113 14.4 14.2 101 TWO OCEAN PLATEAU 9240 18.0 15.6 115 14.4 15.5 93 WILLOW CREEK 8380 15.5 14.5 107 18.7 19.2 97 YOUNTS PEAK 8350 -M 8.6 * -M 9.5 * ----- ----- Basin Index (%) 104 91 MADISON-GALLATIN BLACK BEAR 8170 20.3 21.1 96 19.5 21.8 89 CANYON 7870 7.2 7.3 99 8.7 9.5 92 MADISON PLATEAU 7750 11.2 12.7 88 12.1 15.3 79 WEST YELLOWSTONE 6700 6.3 6.4 98 7.4 8.5 87 WHISKEY CREEK 6800 8.0 8.5 94 10.0 11.8 85 ----- ----- Basin Index (%) 95 86 YELLOWSTONE BEARTOOTH LAKE 9360 13.9 12.5 111 12.5 11.4 110 BURNT MTN 5880 4.9 2.2 223 10.6 7.4 143 CANYON 7870 7.2 7.3 99 8.7 9.5 92 COLE CREEK 7850 11.4 7.3 156 7.9 7.1 111 EVENING STAR 9200 19.7 14.2 139 20.2 16.0 126 FISHER CREEK 9100 21.2 18.6 114 18.7 18.4 102 NORTHEAST ENTRANCE 7350 6.3 5.5 115 7.1 7.4 96 PARKER PEAK 9400 15.9 11.7 136 14.7 10.2 144 SYLVAN LAKE 8420 12.5 11.3 111 14.7 13.3 111 THUMB DIVIDE 7980 7.4 8.1 91 7.8 10.8 72 TWO OCEAN PLATEAU 9240 18.0 15.6 115 14.4 15.5 93 WHITE MILL 8700 15.7 13.0 121 13.4 13.8 97 WOLVERINE 7650 8.5 6.0 142 7.1 7.4 96 ----- ----- Basin Index (%) 122 106 WIND RIVER BURROUGHS CREEK 8750 -M 7.5 * -M 9.4 * CASTLE CREEK 8400 3.8 -M * 5.5 -M * COLD SPRINGS 9630 5.4 4.1 132 7.0 5.7 123 DEER PARK 9700 5.4 7.4 73 7.5 11.0 68 HOBBS PARK 10100 7.4 7.4 100 6.7 7.1 94 KIRWIN 9550 8.0 5.3 151 7.3 6.7 109 LITTLE WARM 9370 6.7 5.7 118 8.1 7.4 109 OWL CREEK 8975 3.9 3.0 130 3.9 3.3 118 SOUTH PASS 9040 6.4 7.9 81 6.5 9.8 66 ST. LAWRENCE ALT 8620 2.6 3.5 74 5.1 4.9 104 TOGWOTEE PASS 9580 14.8 13.1 113 14.4 14.2 101 TOWNSEND CREEK 8700 3.5 4.4 80 4.5 6.6 68 ----- ----- Basin Index (%) 104 93 BIGHORN BASIN BALD MTN. 9380 14.2 10.0 142 11.0 9.7 113 BEAR TRAP MEADOW 8200 5.9 3.0 197 6.4 4.7 136 BONE SPRINGS DIV 9350 10.9 8.9 122 8.3 8.6 97 GRAVE SPRINGS 8550 7.1 4.4 161 7.7 5.9 131 KIRWIN 9550 8.0 5.3 151 7.3 6.7 109 MARQUETTE 8760 4.8 -M * 6.7 -M * MIDDLE POWDER 7760 9.7 6.0 162 8.5 6.8 125 OWL CREEK 8975 3.9 3.0 130 3.9 3.3 118 POWDER RIVER PASS 9480 8.3 5.8 143 8.7 7.1 123 SHELL CREEK 9580 9.7 8.4 115 8.3 7.9 105 TIMBER CREEK 7950 3.4 2.7 126 5.0 4.3 116 ----- ----- Basin Index (%) 141 116 SHOSHONE RIVER BLACKWATER 9780 15.6 13.0 120 13.3 11.9 112 EVENING STAR 9200 19.7 14.2 139 20.2 16.0 126 MARQUETTE 8760 4.8 -M * 6.7 -M * SYLVAN ROAD 7120 7.8 6.9 113 11.3 10.7 106 YOUNTS PEAK 8350 -M 8.6 * -M 9.5 * ----- ----- Basin Index (%) 126 116 POWDER RIVER BEAR TRAP MEADOW 8200 5.9 3.0 197 6.4 4.7 136 CLOUD PEAK RESERVOIR 9860 10.7 7.4 145 9.5 7.2 132 GRAVE SPRINGS 8550 7.1 4.4 161 7.7 5.9 131 HANSEN SAWMILL 8360 4.7 3.5 134 6.5 4.6 141 MIDDLE POWDER 7760 9.7 6.0 162 8.5 6.8 125 POWDER RIVER PASS 9480 8.3 5.8 143 8.7 7.1 123 SOLDIER PARK 8720 4.8 -M * 6.1 -M * ----- ----- Basin Index (%) 154 130 TONGUE RIVER BIG GOOSE 7990 5.3 4.4 120 7.4 6.0 123 BONE SPRINGS DIV 9350 10.9 8.9 122 8.3 8.6 97 BURGESS JUNCTION 7880 7.7 6.0 128 8.8 6.9 128 DOME LAKE 8880 6.1 6.2 98 6.4 7.6 84 LITTLE GOOSE 8870 -M -M * -M -M * SUCKER CREEK 8880 9.3 6.4 145 10.3 7.8 132 TIE CREEK 6870 3.9 2.9 134 8.5 6.6 129 ----- ----- Basin Index (%) 124 114 BELLE FOURCHE COLE CANYON 5910 4.0 2.8 143 10.3 5.2 198 ----- ----- Basin Index (%) 143 198 CHEYENNE RIVER BASIN BLIND PARK 6890 6.5 4.1 159 12.6 7.1 177 NORTH RAPID CREEK 6130 6.0 3.8 158 11.4 5.8 197 ----- ----- Basin Index (%) 158 186 UPPER N. PLATTE ARAPAHO RIDGE 10960 13.5 11.2 121 13.6 12.9 105 BLACKHALL MTN 9820 18.5 -M * 19.7 -M * COLUMBINE 9160 16.7 12.6 133 18.2 14.4 126 DIVIDE PEAK 8880 10.5 10.7 98 14.1 12.2 116 JOE WRIGHT 10120 9.5 11.5 83 16.5 14.3 115 LAPRELE CREEK 8375 4.3 5.0 86 6.1 6.8 90 MED BOW 10500 14.4 -M * 20.7 -M * NORTH FRENCH CREEK 10130 18.1 14.2 127 19.2 14.9 129 NEVER SUMMER 10280 11.8 10.7 110 10.4 -M * OLD BATTLE 10000 17.3 15.9 109 20.1 19.9 101 RAWAH 9020 7.5 5.5 136 10.2 8.5 120 SAGE CREEK BASIN 7850 5.9 7.3 81 7.7 8.7 89 SAND LAKE 10050 16.8 14.6 115 16.7 13.5 124 SOUTH BRUSH CREEK 8440 7.1 6.2 115 9.5 8.6 110 TOWER 10500 25.8 23.2 111 27.0 22.5 120 WEBBER SPRINGS 9250 12.4 12.1 102 15.0 15.1 99 WILLOW CREEK PASS 9540 7.5 6.3 119 8.4 7.5 112 ZIRKEL 9340 18.0 15.9 113 20.2 16.8 120 ----- ----- Basin Index (%) 111 113 SWEETWATER DEER PARK 9700 5.4 7.4 73 7.5 11.0 68 LARSEN CREEK 9000 3.7 -M * 6.1 -M * SOUTH PASS 9040 6.4 7.9 81 6.5 9.8 66 ----- ----- Basin Index (%) 77 67 LOWER N. PLATTE CASPER MTN. 7900 11.1 6.8 163 10.5 8.3 127 LAPRELE CREEK 8375 4.3 5.0 86 6.1 6.8 90 RENO HILL 8400 10.4 6.7 155 12.7 8.1 157 WINDY PEAK 7900 3.4 3.7 92 6.1 5.8 105 ----- ----- Basin Index (%) 132 122 LARAMIE RIVER BROOKLYN LAKE 10240 14.0 11.0 127 14.6 11.3 129 CINNABAR PARK 9574 12.7 11.7 109 15.4 14.4 107 CROW CREEK 8330 4.6 5.2 88 6.7 6.0 112 DEADMAN HILL 10220 12.0 8.4 143 12.2 9.2 133 RAWAH 9020 7.5 5.5 136 10.2 8.5 120 ROACH 9700 9.2 9.0 102 11.7 10.6 110 ----- ----- Basin Index (%) 118 118 S. PLATTE BLACK MOUNTAIN 8920 6.6 -M * 8.1 -M * CROW CREEK 8330 4.6 5.2 88 6.7 6.0 112 DEADMAN HILL 10220 12.0 8.4 143 12.2 9.2 133 ----- ----- Basin Index (%) 122 124 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 6.6 5.7 116 10.8 8.7 124 DIVIDE PEAK 8880 10.5 10.7 98 14.1 12.2 116 ELK RIVER 8700 11.6 9.5 122 13.6 11.2 121 LITTLE SNAKE RIVER 8915 15.2 12.5 122 20.7 18.0 115 OLD BATTLE 10000 17.3 15.9 109 20.1 19.9 101 SAGE CREEK BASIN 7850 5.9 7.3 81 7.7 8.7 89 SANDSTONE RS 8150 7.0 7.0 100 11.3 10.6 107 WHISKEY PARK 8950 21.1 13.9 152 23.1 15.5 149 ----- ----- Basin Index (%) 115 116 UPPER GREEN RIVER BIG SANDY OPENING 9080 5.8 7.0 83 5.5 7.5 73 BLIND BULL SUM 8650 14.1 12.4 114 10.4 11.5 90 EAST RIM DIVIDE 7930 7.1 5.8 122 6.2 6.8 91 ELKHART PARK G.S. 9400 7.4 6.6 112 6.9 7.7 90 GROS VENTRE SUMMIT 8750 7.6 7.5 101 6.7 7.4 91 GUNSIGHT PASS 9820 8.8 7.5 117 8.5 7.9 108 KENDALL R.S. 7740 7.2 6.6 109 8.2 8.2 100 LOOMIS PARK 8240 8.6 8.0 108 9.9 10.0 99 NEW FORK LAKE 8340 5.9 5.8 102 5.3 6.3 84 POCKET CREEK 9360 4.6 -M * 5.1 -M * SNIDER BASIN 8060 7.7 6.5 118 8.1 8.2 99 SPRING CREEK DIVIDE 9000 13.5 12.3 110 13.6 13.7 99 TRIPLE PEAK 8500 13.2 11.5 115 15.2 14.1 108 ----- ----- Basin Index (%) 110 96 LOWER GREEN RIVER BLACKS FORK JCT 8870 3.4 -M * 6.7 -M * BUCK PASTURE 9700 6.3 -M * 8.7 -M * EF BLACKS FORK GS 9360 3.1 -M * 6.0 -M * HAMS FORK 7840 5.4 5.9 92 5.9 6.5 91 HEWINTA 9519 3.7 5.0 74 7.1 7.7 92 HICKERSON PARK 9145 4.4 3.2 138 5.8 5.6 104 HOLE-IN-ROCK 9150 3.6 3.5 103 5.6 5.3 106 INDIAN CREEK 9425 10.9 12.7 86 10.2 12.4 82 KELLEY R.S. 8180 7.4 7.6 97 9.1 10.3 88 SPIRIT LK 10235 5.6 -M * 8.5 -M * STEEL CREEK PARK 10200 6.9 7.4 93 8.8 8.9 99 ----- ----- Basin Index (%) 93 93 UPPER BEAR RIVER BEAR RIVER RS 8777 4.0 -M * 6.6 -M * BUG LAKE 7950 8.3 8.8 94 8.6 11.0 78 BURTS MILLER RANCH 8000 3.4 -M * 3.8 -M * CHALK CREEK #1 8993 10.7 11.8 91 11.6 13.8 84 HAYDEN FORK 9212 6.5 7.4 88 10.1 11.6 87 KELLEY R.S. 8180 7.4 7.6 97 9.1 10.3 88 LILY LAKE 9156 6.7 6.6 102 8.5 9.6 89 MONTE CRISTO 8960 11.1 13.8 80 11.2 14.5 77 SALT RIVER SUMMIT 7760 7.1 6.5 109 9.0 9.4 96 ----- ----- Basin Index (%) 92 85 ----------------------------------------------------------------------------- -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.