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 19 , 2014 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 16.6 12.9 129 17.4 16.2 107 BLACK BEAR 8170 27.0 27.6 98 25.9 28.7 90 BLIND BULL SUM 8650 24.8 16.7 149 17.2 14.9 115 COTTONWOOD CREEK 7670 22.2 15.4 144 23.6 18.2 130 EAST RIM DIVIDE 7930 12.6 7.5 168 11.1 8.8 126 GRAND TARGHEE 9260 33.6 27.4 123 25.1 23.6 106 GRANITE CREEK 6770 16.2 12.9 126 16.9 15.4 110 GRASSY LAKE 7265 26.6 24.6 108 26.2 27.7 95 GROS VENTRE SUMMIT 8750 11.1 9.1 122 10.3 9.4 110 GUNSIGHT PASS 9820 14.0 9.8 143 13.0 10.2 127 LEWIS LAKE DIVIDE 7850 24.8 23.9 104 -M 27.0 * PHILLIPS BENCH 8200 22.8 18.4 124 23.2 21.2 109 SALT RIVER SUMMIT 7760 13.0 9.7 134 14.3 12.4 115 SNAKE RIVER STATION 6920 14.4 13.5 107 17.3 17.6 98 SPRING CREEK DIVIDE 9000 25.1 16.8 149 23.9 18.0 133 THUMB DIVIDE 7980 11.4 11.0 104 11.1 13.7 81 TOGWOTEE PASS 9580 22.6 16.7 135 22.4 18.1 124 TWO OCEAN PLATEAU 9240 26.8 20.0 134 20.0 20.2 99 WILLOW CREEK 8380 27.0 20.2 134 28.9 24.9 116 YOUNTS PEAK 8350 -M 11.1 * -M 11.9 * ----- ----- Basin Index (%) 125 109 MADISON-GALLATIN BLACK BEAR 8170 27.0 27.6 98 25.9 28.7 90 CANYON 7870 10.2 9.7 105 11.8 12.3 96 MADISON PLATEAU 7750 15.5 16.3 95 15.9 19.6 81 WEST YELLOWSTONE 6700 9.4 8.0 118 10.5 11.0 95 WHISKEY CREEK 6800 11.4 11.2 102 13.3 15.2 88 ----- ----- Basin Index (%) 101 89 YELLOWSTONE BEARTOOTH LAKE 9360 19.9 15.6 128 18.3 14.8 124 BURNT MTN 5880 6.5 3.7 176 13.4 8.9 151 CANYON 7870 10.2 9.7 105 11.8 12.3 96 COLE CREEK 7850 13.5 8.9 152 9.6 8.5 113 EVENING STAR 9200 26.9 18.1 149 27.2 20.7 131 FISHER CREEK 9100 29.2 24.1 121 24.9 23.8 105 NORTHEAST ENTRANCE 7350 9.8 7.5 131 10.2 9.4 109 PARKER PEAK 9400 21.1 14.6 145 18.7 13.1 143 SYLVAN LAKE 8420 17.0 14.7 116 19.4 16.8 115 THUMB DIVIDE 7980 11.4 11.0 104 11.1 13.7 81 TWO OCEAN PLATEAU 9240 26.8 20.0 134 20.0 20.2 99 WHITE MILL 8700 21.7 16.8 129 18.6 17.8 104 WOLVERINE 7650 12.5 8.2 152 11.0 9.3 118 ----- ----- Basin Index (%) 131 113 WIND RIVER BURROUGHS CREEK 8750 -M 9.9 * -M 12.0 * CASTLE CREEK 8400 8.0 -M * 9.6 -M * COLD SPRINGS 9630 8.4 5.3 158 10.4 7.0 149 DEER PARK 9700 8.6 10.1 85 12.5 14.2 88 HOBBS PARK 10100 10.3 8.9 116 9.4 8.8 107 KIRWIN 9550 13.4 6.3 213 11.7 8.2 143 LITTLE WARM 9370 10.3 7.6 136 12.2 9.2 133 OWL CREEK 8975 5.3 3.5 151 5.3 4.0 132 SOUTH PASS 9040 11.0 10.5 105 10.2 12.6 81 ST. LAWRENCE ALT 8620 3.3 4.8 69 6.4 6.0 107 TOGWOTEE PASS 9580 22.6 16.7 135 22.4 18.1 124 TOWNSEND CREEK 8700 4.8 6.0 80 5.9 8.1 73 ----- ----- Basin Index (%) 123 111 BIGHORN BASIN BALD MTN. 9380 17.4 13.5 129 13.3 12.1 110 BEAR TRAP MEADOW 8200 7.5 3.9 192 7.8 5.8 134 BONE SPRINGS DIV 9350 14.3 11.1 129 10.8 10.9 99 GRAVE SPRINGS 8550 8.6 5.8 148 9.0 7.4 122 KIRWIN 9550 13.4 6.3 213 11.7 8.2 143 MARQUETTE 8760 7.4 -M * 8.9 -M * MIDDLE POWDER 7760 11.5 7.3 158 9.8 8.2 120 OWL CREEK 8975 5.3 3.5 151 5.3 4.0 132 POWDER RIVER PASS 9480 11.0 7.4 149 11.5 8.9 129 SHELL CREEK 9580 12.9 10.4 124 10.8 9.8 110 TIMBER CREEK 7950 4.6 3.1 148 6.3 4.9 129 ----- ----- Basin Index (%) 147 120 SHOSHONE RIVER BLACKWATER 9780 22.6 16.0 141 19.8 15.1 131 EVENING STAR 9200 26.9 18.1 149 27.2 20.7 131 MARQUETTE 8760 7.4 -M * 8.9 -M * SYLVAN ROAD 7120 11.0 8.8 125 15.5 13.2 117 YOUNTS PEAK 8350 -M 11.1 * -M 11.9 * ----- ----- Basin Index (%) 141 128 POWDER RIVER BEAR TRAP MEADOW 8200 7.5 3.9 192 7.8 5.8 134 CLOUD PEAK RESERVOIR 9860 13.8 9.8 141 12.1 8.9 136 GRAVE SPRINGS 8550 8.6 5.8 148 9.0 7.4 122 HANSEN SAWMILL 8360 6.2 4.4 141 8.4 5.6 150 MIDDLE POWDER 7760 11.5 7.3 158 9.8 8.2 120 POWDER RIVER PASS 9480 11.0 7.4 149 11.5 8.9 129 SOLDIER PARK 8720 7.9 -M * 7.6 -M * ----- ----- Basin Index (%) 152 131 TONGUE RIVER BIG GOOSE 7990 7.0 5.9 119 9.0 7.5 120 BONE SPRINGS DIV 9350 14.3 11.1 129 10.8 10.9 99 BURGESS JUNCTION 7880 9.8 7.6 129 10.7 8.5 126 DOME LAKE 8880 8.9 8.0 111 8.4 9.4 89 LITTLE GOOSE 8870 7.8 -M * 10.5 -M * SUCKER CREEK 8880 11.5 8.2 140 12.8 9.8 131 TIE CREEK 6870 5.4 4.0 135 10.2 7.9 129 ----- ----- Basin Index (%) 127 115 BELLE FOURCHE COLE CANYON 5910 5.1 4.6 111 11.4 6.7 170 ----- ----- Basin Index (%) 111 170 CHEYENNE RIVER BASIN BLIND PARK 6890 7.8 5.8 134 14.3 8.8 162 NORTH RAPID CREEK 6130 7.3 5.5 133 13.0 7.2 181 ----- ----- Basin Index (%) 134 171 UPPER N. PLATTE ARAPAHO RIDGE 10960 20.2 15.2 133 19.9 16.4 121 BLACKHALL MTN 9820 26.8 -M * 27.0 -M * COLUMBINE 9160 26.8 18.0 149 14.5 19.0 76 DIVIDE PEAK 8880 13.7 14.5 94 17.5 15.8 111 JOE WRIGHT 10120 14.8 15.1 98 23.9 18.4 130 LAPRELE CREEK 8375 5.7 6.9 83 7.3 8.7 84 MED BOW 10500 16.0 -M * 28.6 -M * NORTH FRENCH CREEK 10130 -M 19.5 * -M 19.6 * NEVER SUMMER 10280 17.7 14.5 122 14.2 -M * OLD BATTLE 10000 24.8 22.6 110 27.9 26.2 106 RAWAH 9020 10.5 7.6 138 13.2 10.1 131 SAGE CREEK BASIN 7850 8.6 10.1 85 9.7 11.2 87 SAND LAKE 10050 22.9 19.2 119 22.4 17.6 127 SOUTH BRUSH CREEK 8440 8.9 8.9 100 11.3 10.8 105 TOWER 10500 40.4 33.6 120 29.0 29.6 98 WEBBER SPRINGS 9250 18.8 17.2 109 21.2 19.7 108 WILLOW CREEK PASS 9540 10.3 8.8 117 11.2 9.5 118 ZIRKEL 9340 30.3 21.5 141 25.9 22.0 118 ----- ----- Basin Index (%) 117 108 SWEETWATER DEER PARK 9700 8.6 10.1 85 12.5 14.2 88 LARSEN CREEK 9000 8.9 8.7 102 11.0 -M * SOUTH PASS 9040 11.0 10.5 105 10.2 12.6 81 ----- ----- Basin Index (%) 97 85 LOWER N. PLATTE CASPER MTN. 7900 -M 9.3 * -M 10.4 * LAPRELE CREEK 8375 5.7 6.9 83 7.3 8.7 84 RENO HILL 8400 11.8 9.1 130 13.9 10.4 134 WINDY PEAK 7900 5.1 5.3 96 7.6 7.3 104 ----- ----- Basin Index (%) 106 109 LARAMIE RIVER BROOKLYN LAKE 10240 22.0 14.2 155 21.3 14.9 143 CINNABAR PARK 9574 17.2 16.1 107 20.5 18.8 109 CROW CREEK 8330 6.5 6.5 100 8.4 7.4 114 DEADMAN HILL 10220 17.7 11.7 151 17.1 11.8 145 RAWAH 9020 10.5 7.6 138 13.2 10.1 131 ROACH 9700 -M 11.8 * -M 13.6 * ----- ----- Basin Index (%) 132 128 S. PLATTE BLACK MOUNTAIN 8920 8.6 -M * 10.2 -M * CROW CREEK 8330 6.5 6.5 100 8.4 7.4 114 DEADMAN HILL 10220 17.7 11.7 151 17.1 11.8 145 ----- ----- Basin Index (%) 133 133 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 9.2 8.8 105 13.2 11.4 116 DIVIDE PEAK 8880 13.7 14.5 94 17.5 15.8 111 ELK RIVER 8700 15.8 14.0 113 17.1 14.9 115 LITTLE SNAKE RIVER 8915 23.0 18.7 123 27.7 24.0 115 OLD BATTLE 10000 24.8 22.6 110 27.9 26.2 106 SAGE CREEK BASIN 7850 8.6 10.1 85 9.7 11.2 87 SANDSTONE RS 8150 9.7 10.1 96 14.3 14.0 102 WHISKEY PARK 8950 30.2 19.7 153 30.7 21.0 146 ----- ----- Basin Index (%) 114 114 UPPER GREEN RIVER BIG SANDY OPENING 9080 10.8 9.2 117 10.2 9.7 105 BLIND BULL SUM 8650 24.8 16.7 149 17.2 14.9 115 EAST RIM DIVIDE 7930 12.6 7.5 168 11.1 8.8 126 ELKHART PARK G.S. 9400 12.8 8.8 145 11.8 9.7 122 GROS VENTRE SUMMIT 8750 11.1 9.1 122 10.3 9.4 110 GUNSIGHT PASS 9820 14.0 9.8 143 13.0 10.2 127 KENDALL R.S. 7740 14.5 9.1 159 15.0 10.8 139 LOOMIS PARK 8240 16.5 10.8 153 17.5 13.0 135 NEW FORK LAKE 8340 11.1 7.6 146 9.3 8.1 115 POCKET CREEK 9360 9.2 -M * 9.6 -M * SNIDER BASIN 8060 14.8 9.1 163 14.6 10.7 136 SPRING CREEK DIVIDE 9000 25.1 16.8 149 23.9 18.0 133 TRIPLE PEAK 8500 23.9 15.7 152 25.6 18.6 138 ----- ----- Basin Index (%) 147 126 LOWER GREEN RIVER BLACKS FORK JCT 8870 5.9 -M * 9.6 -M * BUCK PASTURE 9700 9.7 -M * 11.5 -M * EF BLACKS FORK GS 9360 6.1 -M * 7.6 -M * HAMS FORK 7840 11.9 8.5 140 10.7 8.5 126 HEWINTA 9519 6.6 7.1 93 10.0 10.0 100 HICKERSON PARK 9145 5.6 5.2 108 6.7 7.0 96 HOLE-IN-ROCK 9150 5.1 4.9 104 6.7 6.6 102 INDIAN CREEK 9425 22.5 17.0 132 19.2 16.5 116 KELLEY R.S. 8180 13.9 10.9 128 15.5 13.6 114 SPIRIT LK 10235 6.4 -M * 9.8 -M * STEEL CREEK PARK 10200 13.7 10.4 132 11.8 11.5 103 ----- ----- Basin Index (%) 124 109 UPPER BEAR RIVER BEAR RIVER RS 8777 6.4 -M * 8.7 -M * BUG LAKE 7950 -M 13.6 * -M 14.5 * BURTS MILLER RANCH 8000 5.5 -M * 5.1 -M * CHALK CREEK #1 8993 15.6 16.5 95 16.1 18.2 88 HAYDEN FORK 9212 10.8 11.2 96 14.6 15.2 96 KELLEY R.S. 8180 13.9 10.9 128 15.5 13.6 114 LILY LAKE 9156 9.6 9.3 103 11.1 12.4 90 MONTE CRISTO 8960 19.3 19.3 100 18.2 19.0 96 SALT RIVER SUMMIT 7760 13.0 9.7 134 14.3 12.4 115 ----- ----- Basin Index (%) 107 99 ----------------------------------------------------------------------------- -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.