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 THURSDAY: MARCH 6 , 2014 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 20.8 13.7 152 21.5 17.8 121 BLACK BEAR 8170 33.0 30.5 108 31.0 32.0 97 BLIND BULL SUM 8650 32.5 18.7 174 21.3 16.5 129 COTTONWOOD CREEK 7670 27.1 17.9 151 29.0 20.2 144 EAST RIM DIVIDE 7930 15.8 8.8 180 14.0 9.9 141 GRAND TARGHEE 9260 42.2 31.0 136 31.6 25.3 125 GRANITE CREEK 6770 -M 14.2 * -M 17.0 * GRASSY LAKE 7265 33.0 26.9 123 32.5 30.4 107 GROS VENTRE SUMMIT 8750 13.8 10.4 133 13.4 10.5 128 GUNSIGHT PASS 9820 18.0 11.1 162 16.7 11.2 149 LEWIS LAKE DIVIDE 7850 31.6 25.7 123 30.6 29.9 102 PHILLIPS BENCH 8200 30.2 20.4 148 27.6 23.5 117 SALT RIVER SUMMIT 7760 16.6 10.9 152 17.4 13.9 125 SNAKE RIVER STATION 6920 18.6 14.7 127 21.1 19.2 110 SPRING CREEK DIVIDE 9000 31.8 19.3 165 28.4 19.8 143 THUMB DIVIDE 7980 14.1 12.6 112 13.2 15.3 86 TOGWOTEE PASS 9580 28.0 18.8 149 -M 20.0 * TWO OCEAN PLATEAU 9240 33.5 22.1 152 -M 22.5 * WILLOW CREEK 8380 34.1 23.4 146 -M 27.7 * YOUNTS PEAK 8350 -M 12.0 * -M 13.0 * ----- ----- Basin Index (%) 141 118 MADISON-GALLATIN BLACK BEAR 8170 33.0 30.5 108 31.0 32.0 97 CANYON 7870 11.8 11.1 106 13.8 13.5 102 MADISON PLATEAU 7750 18.8 18.4 102 18.9 22.1 86 WEST YELLOWSTONE 6700 11.1 9.2 121 12.2 12.0 102 WHISKEY CREEK 6800 13.8 12.5 110 16.0 16.9 95 ----- ----- Basin Index (%) 108 95 YELLOWSTONE BEARTOOTH LAKE 9360 25.9 17.7 146 23.9 16.3 147 BURNT MTN 5880 8.3 4.3 193 15.0 9.8 153 CANYON 7870 11.8 11.1 106 13.8 13.5 102 COLE CREEK 7850 15.2 10.7 142 11.2 9.4 119 EVENING STAR 9200 33.3 20.1 166 32.7 22.8 143 FISHER CREEK 9100 36.4 26.3 138 32.0 26.4 121 NORTHEAST ENTRANCE 7350 12.9 8.5 152 12.9 10.2 126 PARKER PEAK 9400 25.6 16.3 157 21.2 14.5 146 SYLVAN LAKE 8420 19.6 16.4 120 22.4 18.5 121 THUMB DIVIDE 7980 14.1 12.6 112 13.2 15.3 86 TWO OCEAN PLATEAU 9240 33.5 22.1 152 -M 22.5 * WHITE MILL 8700 28.2 18.8 150 24.2 19.7 123 WOLVERINE 7650 15.4 8.8 175 14.4 10.2 141 ----- ----- Basin Index (%) 145 127 WIND RIVER BURROUGHS CREEK 8750 -M 11.0 * -M 13.1 * CASTLE CREEK 8400 10.2 -M * 11.7 -M * COLD SPRINGS 9630 9.8 5.7 172 12.0 7.8 154 DEER PARK 9700 13.8 11.2 123 15.8 15.6 101 HOBBS PARK 10100 12.1 10.4 116 10.6 10.0 106 KIRWIN 9550 16.6 7.4 224 15.2 9.1 167 LITTLE WARM 9370 13.2 8.3 159 15.3 10.2 150 OWL CREEK 8975 6.2 4.1 151 6.1 4.4 139 SOUTH PASS 9040 14.0 12.0 117 13.0 14.0 93 ST. LAWRENCE ALT 8620 4.3 5.6 77 7.5 6.8 110 TOGWOTEE PASS 9580 28.0 18.8 149 -M 20.0 * TOWNSEND CREEK 8700 5.9 7.1 83 6.7 9.0 74 ----- ----- Basin Index (%) 137 118 BIGHORN BASIN BALD MTN. 9380 20.3 15.5 131 15.7 13.5 116 BEAR TRAP MEADOW 8200 8.5 4.6 185 8.7 6.4 136 BONE SPRINGS DIV 9350 17.5 12.9 136 13.7 12.2 112 GRAVE SPRINGS 8550 9.2 7.1 130 9.6 8.2 117 KIRWIN 9550 16.6 7.4 224 15.2 9.1 167 MARQUETTE 8760 10.0 -M * 10.4 -M * MIDDLE POWDER 7760 12.4 8.4 148 10.4 9.0 116 OWL CREEK 8975 6.2 4.1 151 6.1 4.4 139 POWDER RIVER PASS 9480 12.9 8.2 157 13.7 9.9 138 SHELL CREEK 9580 15.9 12.0 132 13.6 10.9 125 TIMBER CREEK 7950 5.3 3.9 136 7.0 5.4 130 ----- ----- Basin Index (%) 148 128 SHOSHONE RIVER BLACKWATER 9780 27.5 18.1 152 24.4 16.6 147 EVENING STAR 9200 33.3 20.1 166 32.7 22.8 143 MARQUETTE 8760 10.0 -M * 10.4 -M * SYLVAN ROAD 7120 13.8 9.8 141 18.0 14.3 126 YOUNTS PEAK 8350 -M 12.0 * -M 13.0 * ----- ----- Basin Index (%) 155 140 POWDER RIVER BEAR TRAP MEADOW 8200 8.5 4.6 185 8.7 6.4 136 CLOUD PEAK RESERVOIR 9860 15.9 11.0 145 13.9 9.9 140 GRAVE SPRINGS 8550 9.2 7.1 130 9.6 8.2 117 HANSEN SAWMILL 8360 7.7 4.8 160 9.8 6.3 156 MIDDLE POWDER 7760 12.4 8.4 148 10.4 9.0 116 POWDER RIVER PASS 9480 12.9 8.2 157 13.7 9.9 138 SOLDIER PARK 8720 9.8 -M * 9.0 -M * ----- ----- Basin Index (%) 151 133 TONGUE RIVER BIG GOOSE 7990 8.6 6.5 132 10.6 8.1 131 BONE SPRINGS DIV 9350 17.5 12.9 136 13.7 12.2 112 BURGESS JUNCTION 7880 11.4 8.8 130 12.5 9.4 133 DOME LAKE 8880 11.5 9.0 128 10.6 10.2 104 LITTLE GOOSE 8870 9.7 -M * 12.4 -M * SUCKER CREEK 8880 13.3 9.5 140 14.8 10.9 136 TIE CREEK 6870 6.6 4.6 143 11.5 8.7 132 ----- ----- Basin Index (%) 134 124 BELLE FOURCHE COLE CANYON 5910 5.6 4.9 114 12.4 7.3 170 ----- ----- Basin Index (%) 114 170 CHEYENNE RIVER BASIN BLIND PARK 6890 8.4 6.5 129 15.0 9.7 155 NORTH RAPID CREEK 6130 8.2 6.1 134 13.9 7.8 178 ----- ----- Basin Index (%) 132 165 UPPER N. PLATTE ARAPAHO RIDGE 10960 23.3 17.2 135 23.0 18.2 126 BLACKHALL MTN 9820 31.8 -M * 27.2 -M * COLUMBINE 9160 30.6 20.5 149 -M 20.9 * DIVIDE PEAK 8880 15.9 16.5 96 19.2 17.4 110 JOE WRIGHT 10120 17.4 17.6 99 27.0 20.7 130 LAPRELE CREEK 8375 7.0 7.9 89 8.4 9.7 87 MED BOW 10500 14.1 -M * 28.3 -M * NORTH FRENCH CREEK 10130 -M 21.6 * -M 21.6 * NEVER SUMMER 10280 21.0 16.5 127 16.3 -M * OLD BATTLE 10000 28.7 24.7 116 31.6 28.8 110 RAWAH 9020 11.8 9.0 131 14.4 11.2 129 SAGE CREEK BASIN 7850 9.8 10.9 90 10.8 12.1 89 SAND LAKE 10050 27.4 21.7 126 26.4 19.6 135 SOUTH BRUSH CREEK 8440 10.3 10.8 95 12.4 12.1 102 TOWER 10500 45.4 37.4 121 -M 32.9 * WEBBER SPRINGS 9250 22.4 19.4 115 24.5 21.8 112 WILLOW CREEK PASS 9540 12.1 9.9 122 12.6 10.7 118 ZIRKEL 9340 37.7 24.2 156 27.6 23.8 116 ----- ----- Basin Index (%) 121 115 SWEETWATER DEER PARK 9700 13.8 11.2 123 15.8 15.6 101 LARSEN CREEK 9000 12.0 9.9 121 13.9 -M * SOUTH PASS 9040 14.0 12.0 117 13.0 14.0 93 ----- ----- Basin Index (%) 120 97 LOWER N. PLATTE CASPER MTN. 7900 -M 10.9 * -M 11.5 * LAPRELE CREEK 8375 7.0 7.9 89 8.4 9.7 87 RENO HILL 8400 13.0 10.8 120 15.4 11.6 133 WINDY PEAK 7900 6.7 6.1 110 9.2 8.1 114 ----- ----- Basin Index (%) 108 112 LARAMIE RIVER BROOKLYN LAKE 10240 26.9 15.9 169 26.0 16.7 156 CINNABAR PARK 9574 20.3 17.5 116 20.4 20.0 102 CROW CREEK 8330 6.5 6.9 94 10.0 8.2 122 DEADMAN HILL 10220 20.8 12.7 164 19.7 13.4 147 RAWAH 9020 11.8 9.0 131 14.4 11.2 129 ROACH 9700 -M 12.8 * -M 15.3 * ----- ----- Basin Index (%) 139 130 S. PLATTE BLACK MOUNTAIN 8920 10.2 -M * 11.4 -M * CROW CREEK 8330 6.5 6.9 94 10.0 8.2 122 DEADMAN HILL 10220 20.8 12.7 164 19.7 13.4 147 ----- ----- Basin Index (%) 139 138 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 10.2 10.1 101 14.9 12.5 119 DIVIDE PEAK 8880 15.9 16.5 96 19.2 17.4 110 ELK RIVER 8700 19.2 16.3 118 19.6 16.5 119 LITTLE SNAKE RIVER 8915 26.5 20.0 132 30.5 25.4 120 OLD BATTLE 10000 28.7 24.7 116 31.6 28.8 110 SAGE CREEK BASIN 7850 9.8 10.9 90 10.8 12.1 89 SANDSTONE RS 8150 10.7 11.3 95 15.5 15.5 100 WHISKEY PARK 8950 34.4 22.4 154 -M 23.1 * ----- ----- Basin Index (%) 118 111 UPPER GREEN RIVER BIG SANDY OPENING 9080 14.2 10.4 137 13.4 10.8 124 BLIND BULL SUM 8650 32.5 18.7 174 21.3 16.5 129 EAST RIM DIVIDE 7930 15.8 8.8 180 14.0 9.9 141 ELKHART PARK G.S. 9400 16.0 9.7 165 15.1 10.9 139 GROS VENTRE SUMMIT 8750 13.8 10.4 133 13.4 10.5 128 GUNSIGHT PASS 9820 18.0 11.1 162 16.7 11.2 149 KENDALL R.S. 7740 20.7 10.1 205 -M 12.1 * LOOMIS PARK 8240 21.9 12.3 178 22.1 14.5 152 NEW FORK LAKE 8340 14.9 8.6 173 12.5 9.1 137 POCKET CREEK 9360 11.8 -M * 11.7 -M * SNIDER BASIN 8060 18.3 10.3 178 18.0 11.9 151 SPRING CREEK DIVIDE 9000 31.8 19.3 165 28.4 19.8 143 TRIPLE PEAK 8500 31.6 17.8 178 32.9 20.9 157 ----- ----- Basin Index (%) 169 142 LOWER GREEN RIVER BLACKS FORK JCT 8870 7.2 -M * 11.1 -M * BUCK PASTURE 9700 11.9 -M * 13.4 -M * EF BLACKS FORK GS 9360 8.3 -M * 8.4 -M * HAMS FORK 7840 14.4 9.6 150 12.6 9.4 134 HEWINTA 9519 8.9 8.3 107 11.6 11.2 104 HICKERSON PARK 9145 6.3 6.2 102 7.4 7.9 94 HOLE-IN-ROCK 9150 5.6 5.8 97 7.5 7.4 101 INDIAN CREEK 9425 28.8 19.5 148 24.1 18.4 131 KELLEY R.S. 8180 17.3 12.4 140 18.8 15.0 125 SPIRIT LK 10235 7.6 -M * 10.8 -M * STEEL CREEK PARK 10200 15.4 12.1 127 13.3 12.9 103 ----- ----- Basin Index (%) 131 116 UPPER BEAR RIVER BEAR RIVER RS 8777 8.5 -M * 10.3 -M * BUG LAKE 7950 20.0 15.4 130 17.5 16.0 109 BURTS MILLER RANCH 8000 6.4 -M * 6.0 -M * CHALK CREEK #1 8993 19.1 19.0 101 19.2 20.3 95 HAYDEN FORK 9212 13.3 12.5 106 17.2 17.0 101 KELLEY R.S. 8180 17.3 12.4 140 18.8 15.0 125 LILY LAKE 9156 11.7 10.7 109 12.8 13.8 93 MONTE CRISTO 8960 23.5 22.1 106 21.6 21.2 102 SALT RIVER SUMMIT 7760 16.6 10.9 152 17.4 13.9 125 ----- ----- Basin Index (%) 118 106 ----------------------------------------------------------------------------- -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.