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 WEDNESDAY: FEBRUARY 12 , 2014 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 14.1 12.0 118 15.3 15.1 101 BLACK BEAR 8170 23.7 26.4 90 23.0 26.8 86 BLIND BULL SUM 8650 19.7 15.4 128 13.9 13.9 100 COTTONWOOD CREEK 7670 18.7 14.1 133 20.5 17.1 120 EAST RIM DIVIDE 7930 10.4 7.1 146 9.2 8.2 112 GRAND TARGHEE 9260 30.3 25.4 119 22.0 22.5 98 GRANITE CREEK 6770 12.6 11.8 107 13.7 14.6 94 GRASSY LAKE 7265 22.9 22.9 100 23.6 25.9 91 GROS VENTRE SUMMIT 8750 9.0 8.8 102 8.3 8.8 94 GUNSIGHT PASS 9820 11.3 9.0 126 10.8 9.7 111 LEWIS LAKE DIVIDE 7850 20.3 22.4 91 23.0 25.0 92 PHILLIPS BENCH 8200 18.2 17.3 105 18.9 19.7 96 SALT RIVER SUMMIT 7760 10.7 8.8 122 12.3 11.5 107 SNAKE RIVER STATION 6920 12.2 12.5 98 15.1 16.6 91 SPRING CREEK DIVIDE 9000 19.8 16.0 124 19.5 16.7 117 THUMB DIVIDE 7980 9.4 10.2 92 9.6 13.0 74 TOGWOTEE PASS 9580 19.3 16.0 121 19.1 17.1 112 TWO OCEAN PLATEAU 9240 22.9 19.1 120 18.2 18.7 97 WILLOW CREEK 8380 22.0 18.5 119 24.7 23.3 106 YOUNTS PEAK 8350 -M 10.3 * -M 11.3 * ----- ----- Basin Index (%) 112 99 MADISON-GALLATIN BLACK BEAR 8170 23.7 26.4 90 23.0 26.8 86 CANYON 7870 9.0 8.9 101 10.5 11.6 91 MADISON PLATEAU 7750 13.7 15.4 89 14.5 18.6 78 WEST YELLOWSTONE 6700 8.2 7.4 111 9.3 10.4 89 WHISKEY CREEK 6800 10.1 10.3 98 12.2 14.2 86 ----- ----- Basin Index (%) 95 85 YELLOWSTONE BEARTOOTH LAKE 9360 16.9 15.0 113 15.5 13.9 112 BURNT MTN 5880 6.7 3.1 216 12.9 8.4 154 CANYON 7870 9.0 8.9 101 10.5 11.6 91 COLE CREEK 7850 13.4 8.8 152 9.5 8.2 116 EVENING STAR 9200 23.6 17.0 139 24.4 19.5 125 FISHER CREEK 9100 24.9 22.3 112 21.9 22.4 98 NORTHEAST ENTRANCE 7350 8.5 7.1 120 9.1 8.9 102 PARKER PEAK 9400 18.8 13.8 136 16.9 12.3 137 SYLVAN LAKE 8420 15.3 13.6 112 17.4 15.9 109 THUMB DIVIDE 7980 9.4 10.2 92 9.6 13.0 74 TWO OCEAN PLATEAU 9240 22.9 19.1 120 18.2 18.7 97 WHITE MILL 8700 19.0 15.9 119 16.4 16.7 98 WOLVERINE 7650 11.3 7.6 149 9.7 8.8 110 ----- ----- Basin Index (%) 123 108 WIND RIVER BURROUGHS CREEK 8750 -M 9.1 * -M 11.2 * CASTLE CREEK 8400 6.3 -M * 7.9 -M * COLD SPRINGS 9630 7.0 4.9 143 8.8 6.6 133 DEER PARK 9700 7.4 9.5 78 10.8 13.5 80 HOBBS PARK 10100 9.0 8.2 110 7.8 8.3 94 KIRWIN 9550 10.4 6.1 170 9.7 7.7 126 LITTLE WARM 9370 8.6 6.9 125 10.2 8.7 117 OWL CREEK 8975 5.0 3.2 156 4.9 3.8 129 SOUTH PASS 9040 9.8 9.9 99 9.3 11.7 79 ST. LAWRENCE ALT 8620 3.2 4.4 73 6.1 5.7 107 TOGWOTEE PASS 9580 19.3 16.0 121 19.1 17.1 112 TOWNSEND CREEK 8700 4.5 5.7 79 5.5 7.6 72 ----- ----- Basin Index (%) 113 102 BIGHORN BASIN BALD MTN. 9380 16.6 12.1 137 12.7 11.5 110 BEAR TRAP MEADOW 8200 7.3 3.7 197 7.7 5.5 140 BONE SPRINGS DIV 9350 13.2 10.4 127 10.0 10.3 97 GRAVE SPRINGS 8550 8.0 5.3 151 8.7 7.0 124 KIRWIN 9550 10.4 6.1 170 9.7 7.7 126 MARQUETTE 8760 6.5 -M * 8.5 -M * MIDDLE POWDER 7760 10.9 6.9 158 9.6 7.9 122 OWL CREEK 8975 5.0 3.2 156 4.9 3.8 129 POWDER RIVER PASS 9480 10.4 7.0 149 10.8 8.4 129 SHELL CREEK 9580 11.9 9.8 121 10.1 9.5 106 TIMBER CREEK 7950 4.4 3.1 142 6.0 4.8 125 ----- ----- Basin Index (%) 145 118 SHOSHONE RIVER BLACKWATER 9780 19.8 15.3 129 17.1 14.2 120 EVENING STAR 9200 23.6 17.0 139 24.4 19.5 125 MARQUETTE 8760 6.5 -M * 8.5 -M * SYLVAN ROAD 7120 9.8 8.4 117 13.9 12.6 110 YOUNTS PEAK 8350 -M 10.3 * -M 11.3 * ----- ----- Basin Index (%) 131 120 POWDER RIVER BEAR TRAP MEADOW 8200 7.3 3.7 197 7.7 5.5 140 CLOUD PEAK RESERVOIR 9860 12.3 9.2 134 10.8 8.5 127 GRAVE SPRINGS 8550 8.0 5.3 151 8.7 7.0 124 HANSEN SAWMILL 8360 5.7 4.2 136 7.7 5.4 143 MIDDLE POWDER 7760 10.9 6.9 158 9.6 7.9 122 POWDER RIVER PASS 9480 10.4 7.0 149 10.8 8.4 129 SOLDIER PARK 8720 6.0 -M * 7.1 -M * ----- ----- Basin Index (%) 150 130 TONGUE RIVER BIG GOOSE 7990 6.5 5.5 118 8.6 7.1 121 BONE SPRINGS DIV 9350 13.2 10.4 127 10.0 10.3 97 BURGESS JUNCTION 7880 9.1 7.2 126 10.4 8.0 130 DOME LAKE 8880 7.5 7.5 100 7.5 9.0 83 LITTLE GOOSE 8870 7.4 -M * 9.9 -M * SUCKER CREEK 8880 10.8 7.7 140 12.0 9.4 128 TIE CREEK 6870 5.1 3.7 138 9.7 7.6 128 ----- ----- Basin Index (%) 124 113 BELLE FOURCHE COLE CANYON 5910 5.5 4.1 134 11.2 6.4 175 ----- ----- Basin Index (%) 134 175 CHEYENNE RIVER BASIN BLIND PARK 6890 7.1 5.4 131 13.7 8.4 163 NORTH RAPID CREEK 6130 6.9 5.1 135 12.5 6.8 184 ----- ----- Basin Index (%) 133 172 UPPER N. PLATTE ARAPAHO RIDGE 10960 18.9 14.3 132 18.6 15.4 121 BLACKHALL MTN 9820 25.5 -M * 26.0 -M * COLUMBINE 9160 24.6 16.5 149 18.9 17.8 106 DIVIDE PEAK 8880 13.4 13.7 98 16.9 14.8 114 JOE WRIGHT 10120 14.1 13.8 102 22.7 17.4 130 LAPRELE CREEK 8375 5.5 6.1 90 7.2 8.1 89 MED BOW 10500 17.0 -M * 25.6 -M * NORTH FRENCH CREEK 10130 -M 18.0 * -M 18.2 * NEVER SUMMER 10280 16.1 13.5 119 13.4 -M * OLD BATTLE 10000 23.5 21.2 111 27.1 24.4 111 RAWAH 9020 10.1 7.1 142 12.8 9.6 133 SAGE CREEK BASIN 7850 8.0 9.1 88 9.4 10.6 89 SAND LAKE 10050 22.0 17.8 124 21.3 16.3 131 SOUTH BRUSH CREEK 8440 8.5 7.8 109 11.1 10.2 109 TOWER 10500 37.6 31.1 121 27.4 27.7 99 WEBBER SPRINGS 9250 17.8 15.8 113 20.6 18.3 113 WILLOW CREEK PASS 9540 9.8 8.2 120 10.6 9.0 118 ZIRKEL 9340 27.8 19.9 140 21.6 20.5 105 ----- ----- Basin Index (%) 119 112 SWEETWATER DEER PARK 9700 7.4 9.5 78 10.8 13.5 80 LARSEN CREEK 9000 7.3 -M * 9.5 -M * SOUTH PASS 9040 9.8 9.9 99 9.3 11.7 79 ----- ----- Basin Index (%) 89 80 LOWER N. PLATTE CASPER MTN. 7900 -M 8.2 * -M 9.7 * LAPRELE CREEK 8375 5.5 6.1 90 7.2 8.1 89 RENO HILL 8400 11.8 8.4 140 13.2 9.7 136 WINDY PEAK 7900 4.9 4.6 107 7.4 6.8 109 ----- ----- Basin Index (%) 116 113 LARAMIE RIVER BROOKLYN LAKE 10240 20.3 13.1 155 19.8 13.9 142 CINNABAR PARK 9574 16.5 14.7 112 20.6 17.3 119 CROW CREEK 8330 6.3 5.9 107 8.0 6.8 118 DEADMAN HILL 10220 16.9 11.0 154 16.3 11.1 147 RAWAH 9020 10.1 7.1 142 12.8 9.6 133 ROACH 9700 13.3 10.9 122 16.2 12.8 127 ----- ----- Basin Index (%) 133 131 S. PLATTE BLACK MOUNTAIN 8920 8.4 -M * 10.0 -M * CROW CREEK 8330 6.3 5.9 107 8.0 6.8 118 DEADMAN HILL 10220 16.9 11.0 154 16.3 11.1 147 ----- ----- Basin Index (%) 137 136 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 8.7 8.0 109 13.1 10.5 125 DIVIDE PEAK 8880 13.4 13.7 98 16.9 14.8 114 ELK RIVER 8700 14.8 12.9 115 16.3 13.9 117 LITTLE SNAKE RIVER 8915 21.9 17.4 126 26.7 22.6 118 OLD BATTLE 10000 23.5 21.2 111 27.1 24.4 111 SAGE CREEK BASIN 7850 8.0 9.1 88 9.4 10.6 89 SANDSTONE RS 8150 9.5 9.2 103 14.0 13.0 108 WHISKEY PARK 8950 28.5 17.9 159 29.8 19.6 152 ----- ----- Basin Index (%) 117 118 UPPER GREEN RIVER BIG SANDY OPENING 9080 9.4 8.7 108 8.8 9.0 98 BLIND BULL SUM 8650 19.7 15.4 128 13.9 13.9 100 EAST RIM DIVIDE 7930 10.4 7.1 146 9.2 8.2 112 ELKHART PARK G.S. 9400 10.6 8.1 131 9.9 9.1 109 GROS VENTRE SUMMIT 8750 9.0 8.8 102 8.3 8.8 94 GUNSIGHT PASS 9820 11.3 9.0 126 10.8 9.7 111 KENDALL R.S. 7740 11.2 8.6 130 12.1 10.0 121 LOOMIS PARK 8240 13.4 10.4 129 14.7 12.2 120 NEW FORK LAKE 8340 8.9 7.3 122 7.5 7.6 99 POCKET CREEK 9360 8.0 -M * 8.4 -M * SNIDER BASIN 8060 12.1 8.5 142 12.1 10.0 121 SPRING CREEK DIVIDE 9000 19.8 16.0 124 19.5 16.7 117 TRIPLE PEAK 8500 19.6 14.9 132 21.5 17.3 124 ----- ----- Basin Index (%) 127 112 LOWER GREEN RIVER BLACKS FORK JCT 8870 5.0 -M * 8.5 -M * BUCK PASTURE 9700 8.4 -M * 10.4 -M * EF BLACKS FORK GS 9360 3.9 -M * 6.9 -M * HAMS FORK 7840 9.5 8.0 119 8.9 7.9 113 HEWINTA 9519 5.7 6.6 86 8.9 9.4 95 HICKERSON PARK 9145 5.1 4.5 113 6.5 6.6 98 HOLE-IN-ROCK 9150 4.5 4.5 100 6.3 6.2 102 INDIAN CREEK 9425 17.5 16.0 109 15.4 15.2 101 KELLEY R.S. 8180 11.6 9.8 118 13.4 12.5 107 SPIRIT LK 10235 6.3 -M * 9.6 -M * STEEL CREEK PARK 10200 8.6 9.7 89 10.7 10.8 99 ----- ----- Basin Index (%) 106 102 UPPER BEAR RIVER BEAR RIVER RS 8777 5.7 -M * 8.2 -M * BUG LAKE 7950 -M 12.6 * -M 13.4 * BURTS MILLER RANCH 8000 5.0 -M * 4.9 -M * CHALK CREEK #1 8993 14.4 15.2 95 15.2 17.0 89 HAYDEN FORK 9212 9.4 9.9 95 13.3 14.2 94 KELLEY R.S. 8180 11.6 9.8 118 13.4 12.5 107 LILY LAKE 9156 9.0 8.3 108 10.5 11.6 91 MONTE CRISTO 8960 17.0 17.8 96 16.3 17.6 93 SALT RIVER SUMMIT 7760 10.7 8.8 122 12.3 11.5 107 ----- ----- Basin Index (%) 103 96 ----------------------------------------------------------------------------- -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.