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 MONDAY: FEBRUARY 17 , 2014 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 16.4 12.8 128 17.4 15.7 111 BLACK BEAR 8170 26.7 27.3 98 25.1 28.2 89 BLIND BULL SUM 8650 24.3 16.3 149 17.1 14.6 117 COTTONWOOD CREEK 7670 22.1 15.0 147 23.4 17.9 131 EAST RIM DIVIDE 7930 12.4 7.4 168 11.0 8.6 128 GRAND TARGHEE 9260 33.7 26.9 125 24.9 23.4 106 GRANITE CREEK 6770 16.0 12.6 127 16.8 15.2 111 GRASSY LAKE 7265 26.4 24.3 109 25.8 27.2 95 GROS VENTRE SUMMIT 8750 10.8 9.0 120 10.0 9.2 109 GUNSIGHT PASS 9820 13.8 9.6 144 12.8 10.0 128 LEWIS LAKE DIVIDE 7850 24.4 23.5 104 25.7 26.4 97 PHILLIPS BENCH 8200 22.5 18.1 124 22.8 20.7 110 SALT RIVER SUMMIT 7760 12.9 9.5 136 14.2 12.2 116 SNAKE RIVER STATION 6920 14.3 13.3 108 17.1 17.3 99 SPRING CREEK DIVIDE 9000 24.8 16.5 150 23.7 17.6 135 THUMB DIVIDE 7980 11.1 10.9 102 10.9 13.4 81 TOGWOTEE PASS 9580 22.2 16.6 134 21.9 17.8 123 TWO OCEAN PLATEAU 9240 26.5 19.7 135 19.9 19.7 101 WILLOW CREEK 8380 26.8 19.8 135 28.8 24.4 118 YOUNTS PEAK 8350 -M 11.0 * -M 11.7 * ----- ----- Basin Index (%) 126 109 MADISON-GALLATIN BLACK BEAR 8170 26.7 27.3 98 25.1 28.2 89 CANYON 7870 10.1 9.5 106 11.7 12.0 98 MADISON PLATEAU 7750 15.2 15.9 96 15.7 19.2 82 WEST YELLOWSTONE 6700 9.1 7.8 117 10.3 10.8 95 WHISKEY CREEK 6800 11.2 10.9 103 13.2 14.9 89 ----- ----- Basin Index (%) 101 89 YELLOWSTONE BEARTOOTH LAKE 9360 19.3 15.5 125 17.9 14.5 123 BURNT MTN 5880 6.5 3.6 181 13.3 8.8 151 CANYON 7870 10.1 9.5 106 11.7 12.0 98 COLE CREEK 7850 13.4 8.9 151 9.4 8.4 112 EVENING STAR 9200 26.1 17.8 147 26.8 20.4 131 FISHER CREEK 9100 28.6 23.6 121 24.8 23.4 106 NORTHEAST ENTRANCE 7350 9.6 7.5 128 10.0 9.3 108 PARKER PEAK 9400 20.7 14.3 145 18.5 12.8 145 SYLVAN LAKE 8420 16.8 14.4 117 19.1 16.6 115 THUMB DIVIDE 7980 11.1 10.9 102 10.9 13.4 81 TWO OCEAN PLATEAU 9240 26.5 19.7 135 19.9 19.7 101 WHITE MILL 8700 21.2 16.4 129 18.3 17.5 105 WOLVERINE 7650 12.7 8.0 159 10.8 9.2 117 ----- ----- Basin Index (%) 131 114 WIND RIVER BURROUGHS CREEK 8750 -M 9.7 * -M 11.7 * CASTLE CREEK 8400 7.8 -M * 9.3 -M * COLD SPRINGS 9630 8.2 5.2 158 10.1 6.8 149 DEER PARK 9700 -M 9.9 * 12.3 14.1 87 HOBBS PARK 10100 10.2 8.7 117 8.8 8.7 101 KIRWIN 9550 13.2 6.2 213 11.4 8.1 141 LITTLE WARM 9370 10.1 7.4 136 11.9 9.0 132 OWL CREEK 8975 5.1 3.4 150 5.1 3.9 131 SOUTH PASS 9040 11.0 10.3 107 10.1 12.3 82 ST. LAWRENCE ALT 8620 3.2 4.6 70 5.8 5.9 98 TOGWOTEE PASS 9580 22.2 16.6 134 21.9 17.8 123 TOWNSEND CREEK 8700 4.6 5.9 78 5.6 8.0 70 ----- ----- Basin Index (%) 129 109 BIGHORN BASIN BALD MTN. 9380 17.1 13.2 130 13.0 11.9 109 BEAR TRAP MEADOW 8200 7.5 3.8 197 7.8 5.7 137 BONE SPRINGS DIV 9350 14.0 10.9 128 10.5 10.7 98 GRAVE SPRINGS 8550 8.4 5.7 147 8.8 7.2 122 KIRWIN 9550 13.2 6.2 213 11.4 8.1 141 MARQUETTE 8760 6.7 -M * 8.7 -M * MIDDLE POWDER 7760 11.1 7.2 154 9.7 8.1 120 OWL CREEK 8975 5.1 3.4 150 5.1 3.9 131 POWDER RIVER PASS 9480 10.9 7.3 149 11.4 8.8 130 SHELL CREEK 9580 12.6 10.2 124 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 22.5 15.7 143 19.4 14.9 130 EVENING STAR 9200 26.1 17.8 147 26.8 20.4 131 MARQUETTE 8760 6.7 -M * 8.7 -M * SYLVAN ROAD 7120 10.9 8.7 125 15.4 13.1 118 YOUNTS PEAK 8350 -M 11.0 * -M 11.7 * ----- ----- Basin Index (%) 141 127 POWDER RIVER BEAR TRAP MEADOW 8200 7.5 3.8 197 7.8 5.7 137 CLOUD PEAK RESERVOIR 9860 13.4 9.7 138 11.5 8.8 131 GRAVE SPRINGS 8550 8.4 5.7 147 8.8 7.2 122 HANSEN SAWMILL 8360 6.1 4.3 142 8.2 5.5 149 MIDDLE POWDER 7760 11.1 7.2 154 9.7 8.1 120 POWDER RIVER PASS 9480 10.9 7.3 149 11.4 8.8 130 SOLDIER PARK 8720 7.5 -M * 7.4 -M * ----- ----- Basin Index (%) 151 130 TONGUE RIVER BIG GOOSE 7990 6.8 5.7 119 8.7 7.3 119 BONE SPRINGS DIV 9350 14.0 10.9 128 10.5 10.7 98 BURGESS JUNCTION 7880 9.6 7.5 128 10.5 8.3 127 DOME LAKE 8880 8.6 7.9 109 8.1 9.2 88 LITTLE GOOSE 8870 7.8 -M * 10.3 -M * SUCKER CREEK 8880 11.4 8.1 141 12.5 9.7 129 TIE CREEK 6870 5.4 3.9 138 10.1 7.8 129 ----- ----- Basin Index (%) 127 114 BELLE FOURCHE COLE CANYON 5910 5.4 4.5 120 11.4 6.6 173 ----- ----- Basin Index (%) 120 173 CHEYENNE RIVER BASIN BLIND PARK 6890 7.8 5.7 137 14.3 8.7 164 NORTH RAPID CREEK 6130 7.3 5.4 135 13.0 7.1 183 ----- ----- Basin Index (%) 136 173 UPPER N. PLATTE ARAPAHO RIDGE 10960 19.9 14.9 134 19.9 16.2 123 BLACKHALL MTN 9820 26.4 -M * 26.9 -M * COLUMBINE 9160 26.3 17.5 150 -M 18.7 * DIVIDE PEAK 8880 13.5 14.1 96 17.4 15.6 112 JOE WRIGHT 10120 14.8 14.8 100 23.8 18.1 131 LAPRELE CREEK 8375 5.6 6.7 84 7.3 8.5 86 MED BOW 10500 16.8 -M * 28.6 -M * NORTH FRENCH CREEK 10130 -M 19.3 * -M 19.1 * NEVER SUMMER 10280 17.5 14.2 123 14.0 -M * OLD BATTLE 10000 24.3 22.2 109 27.8 25.7 108 RAWAH 9020 10.6 7.5 141 13.2 9.9 133 SAGE CREEK BASIN 7850 8.4 9.8 86 9.7 11.0 88 SAND LAKE 10050 22.8 18.7 122 22.2 17.2 129 SOUTH BRUSH CREEK 8440 8.8 8.6 102 11.3 10.6 107 TOWER 10500 39.8 32.8 121 27.5 29.1 95 WEBBER SPRINGS 9250 18.6 16.8 111 21.0 19.3 109 WILLOW CREEK PASS 9540 10.2 8.6 119 11.1 9.4 118 ZIRKEL 9340 30.1 21.0 143 25.5 21.6 118 ----- ----- Basin Index (%) 119 112 SWEETWATER DEER PARK 9700 -M 9.9 * 12.3 14.1 87 LARSEN CREEK 9000 8.8 8.6 102 10.9 -M * SOUTH PASS 9040 11.0 10.3 107 10.1 12.3 82 ----- ----- Basin Index (%) 105 85 LOWER N. PLATTE CASPER MTN. 7900 -M 9.0 * -M 10.2 * LAPRELE CREEK 8375 5.6 6.7 84 7.3 8.5 86 RENO HILL 8400 11.8 8.9 133 13.9 10.2 136 WINDY PEAK 7900 5.1 5.2 98 7.6 7.2 106 ----- ----- Basin Index (%) 108 111 LARAMIE RIVER BROOKLYN LAKE 10240 21.9 13.9 158 21.2 14.6 145 CINNABAR PARK 9574 17.4 16.0 109 20.5 18.3 112 CROW CREEK 8330 6.5 6.4 102 8.2 7.2 114 DEADMAN HILL 10220 17.6 11.5 153 17.0 11.6 147 RAWAH 9020 10.6 7.5 141 13.2 9.9 133 ROACH 9700 -M 11.6 * -M 13.4 * ----- ----- Basin Index (%) 134 130 S. PLATTE BLACK MOUNTAIN 8920 8.7 -M * 10.2 -M * CROW CREEK 8330 6.5 6.4 102 8.2 7.2 114 DEADMAN HILL 10220 17.6 11.5 153 17.0 11.6 147 ----- ----- Basin Index (%) 135 134 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 9.0 8.7 103 13.3 11.1 120 DIVIDE PEAK 8880 13.5 14.1 96 17.4 15.6 112 ELK RIVER 8700 15.7 13.8 114 17.0 14.6 116 LITTLE SNAKE RIVER 8915 22.9 18.4 124 27.6 23.3 118 OLD BATTLE 10000 24.3 22.2 109 27.8 25.7 108 SAGE CREEK BASIN 7850 8.4 9.8 86 9.7 11.0 88 SANDSTONE RS 8150 9.8 9.9 99 14.3 13.8 104 WHISKEY PARK 8950 29.9 19.3 155 30.6 20.6 149 ----- ----- Basin Index (%) 115 116 UPPER GREEN RIVER BIG SANDY OPENING 9080 10.8 9.0 120 10.2 9.4 109 BLIND BULL SUM 8650 24.3 16.3 149 17.1 14.6 117 EAST RIM DIVIDE 7930 12.4 7.4 168 11.0 8.6 128 ELKHART PARK G.S. 9400 12.7 8.6 148 11.8 9.5 124 GROS VENTRE SUMMIT 8750 10.8 9.0 120 10.0 9.2 109 GUNSIGHT PASS 9820 13.8 9.6 144 12.8 10.0 128 KENDALL R.S. 7740 14.2 9.0 158 14.8 10.5 141 LOOMIS PARK 8240 16.3 10.6 154 17.4 12.7 137 NEW FORK LAKE 8340 10.9 7.5 145 9.2 7.9 116 POCKET CREEK 9360 9.3 -M * 9.6 -M * SNIDER BASIN 8060 14.8 9.0 164 14.5 10.5 138 SPRING CREEK DIVIDE 9000 24.8 16.5 150 23.7 17.6 135 TRIPLE PEAK 8500 23.7 15.5 153 25.5 18.2 140 ----- ----- Basin Index (%) 148 128 LOWER GREEN RIVER BLACKS FORK JCT 8870 6.0 -M * 9.6 -M * BUCK PASTURE 9700 9.7 -M * 11.3 -M * EF BLACKS FORK GS 9360 5.1 -M * 7.4 -M * HAMS FORK 7840 11.8 8.4 140 10.6 8.3 128 HEWINTA 9519 6.6 7.0 94 9.9 9.9 100 HICKERSON PARK 9145 5.5 5.1 108 6.7 7.0 96 HOLE-IN-ROCK 9150 5.2 4.8 108 6.7 6.5 103 INDIAN CREEK 9425 22.3 16.6 134 19.1 16.1 119 KELLEY R.S. 8180 13.9 10.7 130 15.5 13.2 117 SPIRIT LK 10235 6.5 -M * 9.9 -M * STEEL CREEK PARK 10200 13.6 10.3 132 11.7 11.2 104 ----- ----- Basin Index (%) 125 111 UPPER BEAR RIVER BEAR RIVER RS 8777 6.4 -M * 8.7 -M * BUG LAKE 7950 16.7 13.3 126 15.1 14.1 107 BURTS MILLER RANCH 8000 5.3 -M * 5.1 -M * CHALK CREEK #1 8993 15.5 16.1 96 16.1 17.8 90 HAYDEN FORK 9212 10.9 11.0 99 14.6 14.9 98 KELLEY R.S. 8180 13.9 10.7 130 15.5 13.2 117 LILY LAKE 9156 9.6 9.0 107 11.1 12.1 92 MONTE CRISTO 8960 19.2 18.9 102 18.1 18.6 97 SALT RIVER SUMMIT 7760 12.9 9.5 136 14.2 12.2 116 ----- ----- Basin Index (%) 112 102 ----------------------------------------------------------------------------- -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.