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 TUESDAY: FEBRUARY 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 16.5 12.9 128 17.4 16.0 109 BLACK BEAR 8170 26.7 27.5 97 25.2 28.4 89 BLIND BULL SUM 8650 24.5 16.5 148 17.1 14.8 116 COTTONWOOD CREEK 7670 22.1 15.2 145 23.5 18.0 131 EAST RIM DIVIDE 7930 12.5 7.4 169 11.1 8.7 128 GRAND TARGHEE 9260 33.5 27.2 123 25.0 23.6 106 GRANITE CREEK 6770 16.1 12.8 126 16.8 15.3 110 GRASSY LAKE 7265 26.6 24.5 109 26.0 27.5 95 GROS VENTRE SUMMIT 8750 10.9 9.1 120 10.1 9.3 109 GUNSIGHT PASS 9820 13.8 9.8 141 12.9 10.1 128 LEWIS LAKE DIVIDE 7850 24.6 23.7 104 25.7 26.7 96 PHILLIPS BENCH 8200 22.5 18.2 124 22.9 21.0 109 SALT RIVER SUMMIT 7760 13.0 9.6 135 14.2 12.3 115 SNAKE RIVER STATION 6920 14.3 13.4 107 17.2 17.5 98 SPRING CREEK DIVIDE 9000 24.8 16.6 149 23.8 17.8 134 THUMB DIVIDE 7980 11.2 11.0 102 11.0 13.6 81 TOGWOTEE PASS 9580 22.2 16.7 133 22.0 18.0 122 TWO OCEAN PLATEAU 9240 26.5 19.8 134 20.0 20.0 100 WILLOW CREEK 8380 26.9 20.0 134 28.8 24.6 117 YOUNTS PEAK 8350 -M 11.1 * -M 11.8 * ----- ----- Basin Index (%) 125 108 MADISON-GALLATIN BLACK BEAR 8170 26.7 27.5 97 25.2 28.4 89 CANYON 7870 10.1 9.6 105 11.7 12.2 96 MADISON PLATEAU 7750 15.3 16.1 95 15.8 19.4 81 WEST YELLOWSTONE 6700 9.2 7.9 116 10.4 10.9 95 WHISKEY CREEK 6800 11.3 11.1 102 13.2 15.0 88 ----- ----- Basin Index (%) 101 89 YELLOWSTONE BEARTOOTH LAKE 9360 19.6 15.5 126 18.0 14.6 123 BURNT MTN 5880 6.5 3.7 176 13.4 8.9 151 CANYON 7870 10.1 9.6 105 11.7 12.2 96 COLE CREEK 7850 13.4 8.9 151 9.5 8.5 112 EVENING STAR 9200 26.6 18.0 148 26.9 20.5 131 FISHER CREEK 9100 28.8 23.9 121 24.8 23.6 105 NORTHEAST ENTRANCE 7350 9.6 7.5 128 10.1 9.3 109 PARKER PEAK 9400 21.0 14.4 146 18.6 13.0 143 SYLVAN LAKE 8420 16.8 14.6 115 19.2 16.7 115 THUMB DIVIDE 7980 11.2 11.0 102 11.0 13.6 81 TWO OCEAN PLATEAU 9240 26.5 19.8 134 20.0 20.0 100 WHITE MILL 8700 21.3 16.6 128 18.4 17.6 105 WOLVERINE 7650 12.5 8.1 154 10.9 9.3 117 ----- ----- Basin Index (%) 130 113 WIND RIVER BURROUGHS CREEK 8750 -M 9.8 * -M 11.8 * CASTLE CREEK 8400 7.9 -M * 9.5 -M * COLD SPRINGS 9630 8.2 5.3 155 10.2 6.9 148 DEER PARK 9700 8.5 10.0 85 12.4 14.1 88 HOBBS PARK 10100 10.2 8.8 116 9.0 8.8 102 KIRWIN 9550 13.2 6.2 213 11.5 8.2 140 LITTLE WARM 9370 10.1 7.5 135 12.0 9.1 132 OWL CREEK 8975 5.2 3.4 153 5.2 4.0 130 SOUTH PASS 9040 11.0 10.4 106 10.2 12.5 82 ST. LAWRENCE ALT 8620 3.3 4.7 70 6.4 6.0 107 TOGWOTEE PASS 9580 22.2 16.7 133 22.0 18.0 122 TOWNSEND CREEK 8700 4.9 5.9 83 5.9 8.1 73 ----- ----- Basin Index (%) 123 110 BIGHORN BASIN BALD MTN. 9380 17.2 13.3 129 13.1 12.0 109 BEAR TRAP MEADOW 8200 7.5 3.9 192 7.8 5.7 137 BONE SPRINGS DIV 9350 14.0 11.0 127 10.7 10.8 99 GRAVE SPRINGS 8550 8.5 5.7 149 8.9 7.3 122 KIRWIN 9550 13.2 6.2 213 11.5 8.2 140 MARQUETTE 8760 7.2 -M * 8.7 -M * MIDDLE POWDER 7760 11.2 7.2 156 9.8 8.2 120 OWL CREEK 8975 5.2 3.4 153 5.2 4.0 130 POWDER RIVER PASS 9480 10.9 7.3 149 11.4 8.8 130 SHELL CREEK 9580 12.6 10.3 122 10.5 9.8 107 TIMBER CREEK 7950 4.5 3.1 145 6.2 4.9 127 ----- ----- Basin Index (%) 147 119 SHOSHONE RIVER BLACKWATER 9780 22.6 15.9 142 19.6 15.0 131 EVENING STAR 9200 26.6 18.0 148 26.9 20.5 131 MARQUETTE 8760 7.2 -M * 8.7 -M * SYLVAN ROAD 7120 10.9 8.7 125 15.4 13.1 118 YOUNTS PEAK 8350 -M 11.1 * -M 11.8 * ----- ----- Basin Index (%) 141 127 POWDER RIVER BEAR TRAP MEADOW 8200 7.5 3.9 192 7.8 5.7 137 CLOUD PEAK RESERVOIR 9860 13.5 9.7 139 11.9 8.8 135 GRAVE SPRINGS 8550 8.5 5.7 149 8.9 7.3 122 HANSEN SAWMILL 8360 6.1 4.4 139 8.3 5.6 148 MIDDLE POWDER 7760 11.2 7.2 156 9.8 8.2 120 POWDER RIVER PASS 9480 10.9 7.3 149 11.4 8.8 130 SOLDIER PARK 8720 7.8 -M * 7.6 -M * ----- ----- Basin Index (%) 151 131 TONGUE RIVER BIG GOOSE 7990 6.9 5.8 119 8.9 7.4 120 BONE SPRINGS DIV 9350 14.0 11.0 127 10.7 10.8 99 BURGESS JUNCTION 7880 9.6 7.5 128 10.6 8.4 126 DOME LAKE 8880 8.6 7.9 109 8.2 9.3 88 LITTLE GOOSE 8870 7.8 -M * 10.4 -M * SUCKER CREEK 8880 11.4 8.1 141 12.6 9.8 129 TIE CREEK 6870 5.4 4.0 135 10.1 7.9 128 ----- ----- Basin Index (%) 126 114 BELLE FOURCHE COLE CANYON 5910 5.3 4.6 115 11.4 6.7 170 ----- ----- Basin Index (%) 115 170 CHEYENNE RIVER BASIN BLIND PARK 6890 7.8 5.7 137 14.3 8.8 162 NORTH RAPID CREEK 6130 7.2 5.4 133 13.0 7.1 183 ----- ----- Basin Index (%) 135 172 UPPER N. PLATTE ARAPAHO RIDGE 10960 20.2 15.1 134 19.9 16.3 122 BLACKHALL MTN 9820 26.8 -M * 26.9 -M * COLUMBINE 9160 26.7 17.8 150 12.0 18.8 64 DIVIDE PEAK 8880 13.6 14.3 95 17.4 15.7 111 JOE WRIGHT 10120 14.9 15.0 99 23.9 18.3 131 LAPRELE CREEK 8375 5.7 6.8 84 7.3 8.6 85 MED BOW 10500 16.5 -M * 28.9 -M * NORTH FRENCH CREEK 10130 -M 19.4 * -M 19.4 * NEVER SUMMER 10280 17.6 14.4 122 14.1 -M * OLD BATTLE 10000 24.7 22.4 110 27.9 25.9 108 RAWAH 9020 10.5 7.5 140 13.2 10.0 132 SAGE CREEK BASIN 7850 8.5 10.0 85 9.7 11.1 87 SAND LAKE 10050 22.9 19.0 121 22.3 17.4 128 SOUTH BRUSH CREEK 8440 8.9 8.8 101 11.2 10.7 105 TOWER 10500 40.3 33.2 121 28.4 29.3 97 WEBBER SPRINGS 9250 18.7 17.0 110 21.2 19.5 109 WILLOW CREEK PASS 9540 10.3 8.7 118 11.2 9.4 119 ZIRKEL 9340 30.2 21.3 142 25.7 21.7 118 ----- ----- Basin Index (%) 118 108 SWEETWATER DEER PARK 9700 8.5 10.0 85 12.4 14.1 88 LARSEN CREEK 9000 8.8 8.6 102 11.0 -M * SOUTH PASS 9040 11.0 10.4 106 10.2 12.5 82 ----- ----- Basin Index (%) 98 85 LOWER N. PLATTE CASPER MTN. 7900 -M 9.2 * -M 10.3 * LAPRELE CREEK 8375 5.7 6.8 84 7.3 8.6 85 RENO HILL 8400 11.8 9.0 131 14.0 10.3 136 WINDY PEAK 7900 5.1 5.2 98 7.6 7.3 104 ----- ----- Basin Index (%) 108 110 LARAMIE RIVER BROOKLYN LAKE 10240 22.0 14.1 156 21.2 14.8 143 CINNABAR PARK 9574 17.3 16.0 108 20.5 18.5 111 CROW CREEK 8330 6.6 6.5 102 8.3 7.3 114 DEADMAN HILL 10220 17.6 11.6 152 17.0 11.7 145 RAWAH 9020 10.5 7.5 140 13.2 10.0 132 ROACH 9700 -M 11.7 * -M 13.5 * ----- ----- Basin Index (%) 133 129 S. PLATTE BLACK MOUNTAIN 8920 8.7 -M * 10.2 -M * CROW CREEK 8330 6.6 6.5 102 8.3 7.3 114 DEADMAN HILL 10220 17.6 11.6 152 17.0 11.7 145 ----- ----- Basin Index (%) 134 133 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 9.0 8.8 102 13.3 11.2 119 DIVIDE PEAK 8880 13.6 14.3 95 17.4 15.7 111 ELK RIVER 8700 15.8 13.9 114 17.1 14.8 116 LITTLE SNAKE RIVER 8915 23.0 18.5 124 27.6 23.5 117 OLD BATTLE 10000 24.7 22.4 110 27.9 25.9 108 SAGE CREEK BASIN 7850 8.5 10.0 85 9.7 11.1 87 SANDSTONE RS 8150 9.7 10.0 97 14.4 13.9 104 WHISKEY PARK 8950 30.2 19.5 155 30.8 20.8 148 ----- ----- Basin Index (%) 115 116 UPPER GREEN RIVER BIG SANDY OPENING 9080 10.8 9.1 119 10.2 9.6 106 BLIND BULL SUM 8650 24.5 16.5 148 17.1 14.8 116 EAST RIM DIVIDE 7930 12.5 7.4 169 11.1 8.7 128 ELKHART PARK G.S. 9400 12.8 8.7 147 11.8 9.6 123 GROS VENTRE SUMMIT 8750 10.9 9.1 120 10.1 9.3 109 GUNSIGHT PASS 9820 13.8 9.8 141 12.9 10.1 128 KENDALL R.S. 7740 14.3 9.1 157 14.8 10.6 140 LOOMIS PARK 8240 16.3 10.7 152 17.4 12.9 135 NEW FORK LAKE 8340 10.9 7.6 143 9.2 8.0 115 POCKET CREEK 9360 9.3 -M * 9.6 -M * SNIDER BASIN 8060 14.8 9.1 163 14.5 10.6 137 SPRING CREEK DIVIDE 9000 24.8 16.6 149 23.8 17.8 134 TRIPLE PEAK 8500 23.8 15.6 153 25.5 18.3 139 ----- ----- Basin Index (%) 147 127 LOWER GREEN RIVER BLACKS FORK JCT 8870 6.0 -M * 9.7 -M * BUCK PASTURE 9700 9.8 -M * 11.5 -M * EF BLACKS FORK GS 9360 5.8 -M * 8.1 -M * HAMS FORK 7840 11.9 8.5 140 10.7 8.4 127 HEWINTA 9519 6.7 7.0 96 10.0 9.9 101 HICKERSON PARK 9145 5.6 5.2 108 7.1 7.0 101 HOLE-IN-ROCK 9150 5.2 4.8 108 6.8 6.6 103 INDIAN CREEK 9425 22.4 16.8 133 19.2 16.4 117 KELLEY R.S. 8180 13.9 10.8 129 15.5 13.4 116 SPIRIT LK 10235 6.5 -M * 9.9 -M * STEEL CREEK PARK 10200 10.4 10.4 100 11.7 11.4 103 ----- ----- Basin Index (%) 120 111 UPPER BEAR RIVER BEAR RIVER RS 8777 6.4 -M * 8.7 -M * BUG LAKE 7950 16.7 13.4 125 15.1 14.3 106 BURTS MILLER RANCH 8000 5.2 -M * 5.2 -M * CHALK CREEK #1 8993 15.6 16.3 96 16.1 18.0 89 HAYDEN FORK 9212 10.8 11.2 96 14.6 15.1 97 KELLEY R.S. 8180 13.9 10.8 129 15.5 13.4 116 LILY LAKE 9156 9.7 9.2 105 11.1 12.2 91 MONTE CRISTO 8960 19.4 19.1 102 18.2 18.8 97 SALT RIVER SUMMIT 7760 13.0 9.6 135 14.2 12.3 115 ----- ----- Basin Index (%) 111 101 ----------------------------------------------------------------------------- -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.