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: FEBRUARY 22 , 2014 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 17.1 13.1 131 18.0 16.6 108 BLACK BEAR 8170 -M 28.1 * -M 29.4 * BLIND BULL SUM 8650 26.1 17.2 152 17.6 15.3 115 COTTONWOOD CREEK 7670 23.4 15.9 147 24.5 18.6 132 EAST RIM DIVIDE 7930 13.1 7.6 172 11.6 9.1 127 GRAND TARGHEE 9260 33.8 28.1 120 25.3 23.8 106 GRANITE CREEK 6770 17.3 13.0 133 17.3 15.8 109 GRASSY LAKE 7265 27.1 24.9 109 26.1 28.3 92 GROS VENTRE SUMMIT 8750 11.6 9.3 125 10.8 9.6 112 GUNSIGHT PASS 9820 14.6 10.1 145 13.4 10.4 129 LEWIS LAKE DIVIDE 7850 25.6 24.6 104 26.0 27.6 94 PHILLIPS BENCH 8200 24.2 18.9 128 24.3 21.7 112 SALT RIVER SUMMIT 7760 13.5 10.1 134 14.8 12.8 116 SNAKE RIVER STATION 6920 14.8 13.7 108 18.0 17.9 101 SPRING CREEK DIVIDE 9000 26.6 17.3 154 25.4 18.4 138 THUMB DIVIDE 7980 11.9 11.3 105 11.4 14.0 81 TOGWOTEE PASS 9580 23.8 17.0 140 23.3 18.5 126 TWO OCEAN PLATEAU 9240 28.2 20.6 137 19.9 20.7 96 WILLOW CREEK 8380 28.9 21.0 138 30.6 25.5 120 YOUNTS PEAK 8350 -M 11.2 * -M 12.2 * ----- ----- Basin Index (%) 130 110 MADISON-GALLATIN BLACK BEAR 8170 -M 28.1 * -M 29.4 * CANYON 7870 10.6 10.0 106 12.2 12.5 98 MADISON PLATEAU 7750 15.9 17.0 94 16.4 20.2 81 WEST YELLOWSTONE 6700 9.6 8.3 116 10.7 11.2 96 WHISKEY CREEK 6800 11.6 11.4 102 13.7 15.6 88 ----- ----- Basin Index (%) 102 89 YELLOWSTONE BEARTOOTH LAKE 9360 21.1 15.9 133 19.3 15.1 128 BURNT MTN 5880 6.9 3.8 182 13.4 9.0 149 CANYON 7870 10.6 10.0 106 12.2 12.5 98 COLE CREEK 7850 14.0 9.0 156 10.1 8.6 117 EVENING STAR 9200 27.8 18.5 150 27.8 21.2 131 FISHER CREEK 9100 30.7 24.8 124 26.4 24.4 108 NORTHEAST ENTRANCE 7350 10.6 7.6 139 10.8 9.5 114 PARKER PEAK 9400 21.8 15.1 144 19.0 13.4 142 SYLVAN LAKE 8420 17.4 15.1 115 19.8 17.2 115 THUMB DIVIDE 7980 11.9 11.3 105 11.4 14.0 81 TWO OCEAN PLATEAU 9240 28.2 20.6 137 19.9 20.7 96 WHITE MILL 8700 22.8 17.5 130 19.5 18.2 107 WOLVERINE 7650 13.1 8.3 158 11.4 9.5 120 ----- ----- Basin Index (%) 133 114 WIND RIVER BURROUGHS CREEK 8750 -M 10.2 * -M 12.2 * CASTLE CREEK 8400 8.3 -M * 9.9 -M * COLD SPRINGS 9630 8.4 5.3 158 10.7 7.1 151 DEER PARK 9700 -M 10.3 * 12.5 14.4 87 HOBBS PARK 10100 10.7 9.1 118 9.2 9.0 102 KIRWIN 9550 14.1 6.5 217 11.9 8.4 142 LITTLE WARM 9370 10.7 7.7 139 12.6 9.4 134 OWL CREEK 8975 5.2 3.6 144 5.2 4.1 127 SOUTH PASS 9040 11.1 10.7 104 10.3 12.8 80 ST. LAWRENCE ALT 8620 3.1 4.9 63 6.1 6.1 100 TOGWOTEE PASS 9580 23.8 17.0 140 23.3 18.5 126 TOWNSEND CREEK 8700 4.9 6.1 80 5.6 8.3 67 ----- ----- Basin Index (%) 130 109 BIGHORN BASIN BALD MTN. 9380 18.5 13.9 133 13.8 12.4 111 BEAR TRAP MEADOW 8200 7.8 4.0 195 7.8 5.8 134 BONE SPRINGS DIV 9350 15.3 11.2 137 11.4 11.1 103 GRAVE SPRINGS 8550 8.8 6.1 144 9.1 7.4 123 KIRWIN 9550 14.1 6.5 217 11.9 8.4 142 MARQUETTE 8760 8.0 -M * 8.9 -M * MIDDLE POWDER 7760 11.9 7.5 159 9.8 8.3 118 OWL CREEK 8975 5.2 3.6 144 5.2 4.1 127 POWDER RIVER PASS 9480 11.8 7.5 157 12.2 9.1 134 SHELL CREEK 9580 13.7 10.7 128 11.6 10.0 116 TIMBER CREEK 7950 4.6 3.1 148 6.3 4.9 129 ----- ----- Basin Index (%) 151 122 SHOSHONE RIVER BLACKWATER 9780 23.4 16.5 142 20.4 15.4 132 EVENING STAR 9200 27.8 18.5 150 27.8 21.2 131 MARQUETTE 8760 8.0 -M * 8.9 -M * SYLVAN ROAD 7120 11.7 8.8 133 15.8 13.4 118 YOUNTS PEAK 8350 -M 11.2 * -M 12.2 * ----- ----- Basin Index (%) 144 128 POWDER RIVER BEAR TRAP MEADOW 8200 7.8 4.0 195 7.8 5.8 134 CLOUD PEAK RESERVOIR 9860 14.4 10.0 144 11.9 9.1 131 GRAVE SPRINGS 8550 8.8 6.1 144 9.1 7.4 123 HANSEN SAWMILL 8360 6.4 4.4 145 8.5 5.7 149 MIDDLE POWDER 7760 11.9 7.5 159 9.8 8.3 118 POWDER RIVER PASS 9480 11.8 7.5 157 12.2 9.1 134 SOLDIER PARK 8720 7.9 -M * 7.8 -M * ----- ----- Basin Index (%) 155 131 TONGUE RIVER BIG GOOSE 7990 7.2 6.0 120 9.1 7.6 120 BONE SPRINGS DIV 9350 15.3 11.2 137 11.4 11.1 103 BURGESS JUNCTION 7880 10.1 7.8 129 10.9 8.6 127 DOME LAKE 8880 9.7 8.2 118 9.0 9.5 95 LITTLE GOOSE 8870 -M -M * -M -M * SUCKER CREEK 8880 12.0 8.4 143 13.2 10.0 132 TIE CREEK 6870 5.6 4.2 133 10.4 8.0 130 ----- ----- Basin Index (%) 131 117 BELLE FOURCHE COLE CANYON 5910 5.3 4.7 113 11.4 6.8 168 ----- ----- Basin Index (%) 113 168 CHEYENNE RIVER BASIN BLIND PARK 6890 7.8 5.9 132 14.5 8.9 163 NORTH RAPID CREEK 6130 7.6 5.6 136 13.0 7.2 181 ----- ----- Basin Index (%) 134 171 UPPER N. PLATTE ARAPAHO RIDGE 10960 20.7 15.6 133 20.8 16.8 124 BLACKHALL MTN 9820 27.4 -M * 27.2 -M * COLUMBINE 9160 27.6 18.6 148 27.1 19.4 140 DIVIDE PEAK 8880 14.1 14.9 95 17.5 16.2 108 JOE WRIGHT 10120 15.2 15.4 99 24.4 19.0 128 LAPRELE CREEK 8375 5.5 7.2 76 7.3 8.9 82 MED BOW 10500 14.9 -M * 28.0 -M * NORTH FRENCH CREEK 10130 -M 19.8 * -M 20.1 * NEVER SUMMER 10280 18.7 15.0 125 14.1 -M * OLD BATTLE 10000 25.2 23.1 109 28.1 26.8 105 RAWAH 9020 10.8 7.9 137 13.4 10.3 130 SAGE CREEK BASIN 7850 8.7 10.4 84 9.9 11.3 88 SAND LAKE 10050 23.5 19.9 118 22.9 18.0 127 SOUTH BRUSH CREEK 8440 9.1 9.4 97 11.3 11.1 102 TOWER 10500 40.8 34.7 118 30.5 30.4 100 WEBBER SPRINGS 9250 19.2 17.8 108 20.7 20.2 102 WILLOW CREEK PASS 9540 10.7 9.0 119 11.5 9.8 117 ZIRKEL 9340 31.4 22.1 142 26.2 22.4 117 ----- ----- Basin Index (%) 117 113 SWEETWATER DEER PARK 9700 -M 10.3 * 12.5 14.4 87 LARSEN CREEK 9000 9.1 9.0 101 11.1 -M * SOUTH PASS 9040 11.1 10.7 104 10.3 12.8 80 ----- ----- Basin Index (%) 103 84 LOWER N. PLATTE CASPER MTN. 7900 -M 9.5 * -M 10.5 * LAPRELE CREEK 8375 5.5 7.2 76 7.3 8.9 82 RENO HILL 8400 11.9 9.3 128 13.7 10.6 129 WINDY PEAK 7900 5.2 5.5 95 7.7 7.5 103 ----- ----- Basin Index (%) 103 106 LARAMIE RIVER BROOKLYN LAKE 10240 22.8 14.5 157 21.4 15.3 140 CINNABAR PARK 9574 17.4 16.3 107 20.5 19.0 108 CROW CREEK 8330 6.3 6.6 95 8.3 7.5 111 DEADMAN HILL 10220 18.2 12.0 152 17.0 12.1 140 RAWAH 9020 10.8 7.9 137 13.4 10.3 130 ROACH 9700 -M 12.0 * -M 14.0 * ----- ----- Basin Index (%) 132 126 S. PLATTE BLACK MOUNTAIN 8920 8.8 -M * 10.6 -M * CROW CREEK 8330 6.3 6.6 95 8.3 7.5 111 DEADMAN HILL 10220 18.2 12.0 152 17.0 12.1 140 ----- ----- Basin Index (%) 132 129 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 8.9 9.1 98 13.3 11.6 115 DIVIDE PEAK 8880 14.1 14.9 95 17.5 16.2 108 ELK RIVER 8700 16.2 14.4 112 17.2 15.3 112 LITTLE SNAKE RIVER 8915 23.5 19.0 124 28.1 24.3 116 OLD BATTLE 10000 25.2 23.1 109 28.1 26.8 105 SAGE CREEK BASIN 7850 8.7 10.4 84 9.9 11.3 88 SANDSTONE RS 8150 9.9 10.3 96 14.4 14.4 100 WHISKEY PARK 8950 30.8 20.2 152 30.8 21.5 143 ----- ----- Basin Index (%) 113 113 UPPER GREEN RIVER BIG SANDY OPENING 9080 11.1 9.5 117 10.4 9.9 105 BLIND BULL SUM 8650 26.1 17.2 152 17.6 15.3 115 EAST RIM DIVIDE 7930 13.1 7.6 172 11.6 9.1 127 ELKHART PARK G.S. 9400 13.3 9.0 148 12.1 10.0 121 GROS VENTRE SUMMIT 8750 11.6 9.3 125 10.8 9.6 112 GUNSIGHT PASS 9820 14.6 10.1 145 13.4 10.4 129 KENDALL R.S. 7740 15.7 9.4 167 16.1 11.0 146 LOOMIS PARK 8240 17.6 11.1 159 18.4 13.4 137 NEW FORK LAKE 8340 11.7 7.8 150 9.7 8.3 117 POCKET CREEK 9360 9.3 -M * 9.7 -M * SNIDER BASIN 8060 15.8 9.2 172 15.6 11.0 142 SPRING CREEK DIVIDE 9000 26.6 17.3 154 25.4 18.4 138 TRIPLE PEAK 8500 25.8 16.1 160 27.4 19.1 143 ----- ----- Basin Index (%) 152 130 LOWER GREEN RIVER BLACKS FORK JCT 8870 6.2 -M * 10.1 -M * BUCK PASTURE 9700 10.4 -M * 12.0 -M * EF BLACKS FORK GS 9360 6.6 -M * 8.0 -M * HAMS FORK 7840 12.3 8.7 141 10.9 8.7 125 HEWINTA 9519 7.1 7.4 96 10.3 10.3 100 HICKERSON PARK 9145 5.6 5.4 104 6.9 7.2 96 HOLE-IN-ROCK 9150 5.2 5.2 100 7.0 6.8 103 INDIAN CREEK 9425 23.5 17.6 134 19.6 16.9 116 KELLEY R.S. 8180 14.2 11.2 127 15.9 13.9 114 SPIRIT LK 10235 6.6 -M * 10.0 -M * STEEL CREEK PARK 10200 14.2 10.8 131 12.3 11.8 104 ----- ----- Basin Index (%) 124 110 UPPER BEAR RIVER BEAR RIVER RS 8777 6.8 -M * 9.1 -M * BUG LAKE 7950 -M 14.0 * -M 14.8 * BURTS MILLER RANCH 8000 5.5 -M * 5.3 -M * CHALK CREEK #1 8993 16.3 17.2 95 16.8 18.6 90 HAYDEN FORK 9212 11.4 11.4 100 15.2 15.6 97 KELLEY R.S. 8180 14.2 11.2 127 15.9 13.9 114 LILY LAKE 9156 10.1 9.7 104 11.5 12.6 91 MONTE CRISTO 8960 19.8 19.7 101 18.3 19.6 93 SALT RIVER SUMMIT 7760 13.5 10.1 134 14.8 12.8 116 ----- ----- Basin Index (%) 108 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.