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: MARCH 12 , 2014 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 22.5 13.8 163 23.3 18.3 127 BLACK BEAR 8170 37.1 31.6 117 34.5 33.3 104 BLIND BULL SUM 8650 33.9 19.6 173 22.2 17.0 131 COTTONWOOD CREEK 7670 28.7 18.6 154 31.0 20.9 148 EAST RIM DIVIDE 7930 16.6 9.5 175 14.6 10.2 143 GRAND TARGHEE 9260 44.8 32.1 140 33.6 25.7 131 GRANITE CREEK 6770 -M 14.7 * -M 17.6 * GRASSY LAKE 7265 35.3 27.7 127 33.2 31.4 106 GROS VENTRE SUMMIT 8750 14.2 10.9 130 14.0 11.0 127 GUNSIGHT PASS 9820 19.0 11.6 164 17.5 11.7 150 LEWIS LAKE DIVIDE 7850 34.2 26.7 128 -M 30.9 * PHILLIPS BENCH 8200 31.8 21.4 149 -M 24.3 * SALT RIVER SUMMIT 7760 17.2 11.3 152 18.0 14.3 126 SNAKE RIVER STATION 6920 20.0 15.2 132 22.6 19.7 115 SPRING CREEK DIVIDE 9000 32.9 19.7 167 30.0 20.5 146 THUMB DIVIDE 7980 15.8 13.3 119 14.5 15.8 92 TOGWOTEE PASS 9580 29.4 19.6 150 -M 20.8 * TWO OCEAN PLATEAU 9240 35.8 23.2 154 -M 23.4 * WILLOW CREEK 8380 36.7 24.2 152 36.4 28.7 127 YOUNTS PEAK 8350 -M 12.4 * -M 13.5 * ----- ----- Basin Index (%) 145 124 MADISON-GALLATIN BLACK BEAR 8170 37.1 31.6 117 34.5 33.3 104 CANYON 7870 13.0 11.5 113 14.6 14.0 104 MADISON PLATEAU 7750 21.2 19.4 109 21.1 22.9 92 WEST YELLOWSTONE 6700 12.1 9.8 123 13.6 12.4 110 WHISKEY CREEK 6800 15.1 13.3 114 17.8 17.5 102 ----- ----- Basin Index (%) 115 101 YELLOWSTONE BEARTOOTH LAKE 9360 27.9 18.4 152 25.4 16.9 150 BURNT MTN 5880 8.7 4.3 202 15.9 10.2 156 CANYON 7870 13.0 11.5 113 14.6 14.0 104 COLE CREEK 7850 16.8 11.3 149 12.2 10.0 122 EVENING STAR 9200 34.8 21.1 165 34.1 23.5 145 FISHER CREEK 9100 39.1 27.2 144 34.5 27.4 126 NORTHEAST ENTRANCE 7350 13.8 8.7 159 13.7 10.5 130 PARKER PEAK 9400 27.3 16.8 162 22.1 15.0 147 SYLVAN LAKE 8420 21.3 17.1 125 24.1 19.1 126 THUMB DIVIDE 7980 15.8 13.3 119 14.5 15.8 92 TWO OCEAN PLATEAU 9240 35.8 23.2 154 -M 23.4 * WHITE MILL 8700 29.9 19.3 155 25.5 20.4 125 WOLVERINE 7650 15.4 9.0 171 15.1 10.5 144 ----- ----- Basin Index (%) 149 130 WIND RIVER BURROUGHS CREEK 8750 -M 11.6 * -M 13.6 * CASTLE CREEK 8400 10.3 -M * 11.9 -M * COLD SPRINGS 9630 9.9 6.0 165 12.1 8.1 149 DEER PARK 9700 14.9 12.2 122 17.0 16.3 104 HOBBS PARK 10100 13.3 11.0 121 11.7 10.4 112 KIRWIN 9550 17.2 7.9 218 15.6 9.4 166 LITTLE WARM 9370 13.6 8.8 155 15.8 10.6 149 OWL CREEK 8975 6.4 4.4 145 6.4 4.6 139 SOUTH PASS 9040 14.9 12.6 118 13.8 14.6 95 ST. LAWRENCE ALT 8620 4.5 5.9 76 7.7 7.1 108 TOGWOTEE PASS 9580 29.4 19.6 150 -M 20.8 * TOWNSEND CREEK 8700 6.9 7.4 93 7.6 9.4 81 ----- ----- Basin Index (%) 137 119 BIGHORN BASIN BALD MTN. 9380 21.1 16.0 132 16.2 14.0 116 BEAR TRAP MEADOW 8200 9.2 4.7 196 9.1 6.6 138 BONE SPRINGS DIV 9350 17.8 13.3 134 14.1 12.6 112 GRAVE SPRINGS 8550 10.0 7.5 133 10.2 8.4 121 KIRWIN 9550 17.2 7.9 218 15.6 9.4 166 MARQUETTE 8760 11.3 -M * 10.9 -M * MIDDLE POWDER 7760 13.5 8.9 152 11.1 9.4 118 OWL CREEK 8975 6.4 4.4 145 6.4 4.6 139 POWDER RIVER PASS 9480 13.7 8.6 159 14.4 10.2 141 SHELL CREEK 9580 16.5 12.3 134 14.2 11.2 127 TIMBER CREEK 7950 5.6 4.1 137 7.3 5.6 130 ----- ----- Basin Index (%) 149 129 SHOSHONE RIVER BLACKWATER 9780 28.8 19.2 150 25.7 17.3 149 EVENING STAR 9200 34.8 21.1 165 34.1 23.5 145 MARQUETTE 8760 11.3 -M * 10.9 -M * SYLVAN ROAD 7120 14.7 10.0 147 18.8 14.6 129 YOUNTS PEAK 8350 -M 12.4 * -M 13.5 * ----- ----- Basin Index (%) 156 142 POWDER RIVER BEAR TRAP MEADOW 8200 9.2 4.7 196 9.1 6.6 138 CLOUD PEAK RESERVOIR 9860 16.7 11.9 140 14.5 10.4 139 GRAVE SPRINGS 8550 10.0 7.5 133 10.2 8.4 121 HANSEN SAWMILL 8360 8.4 5.2 162 10.7 6.6 162 MIDDLE POWDER 7760 13.5 8.9 152 11.1 9.4 118 POWDER RIVER PASS 9480 13.7 8.6 159 14.4 10.2 141 SOLDIER PARK 8720 10.7 -M * 9.5 -M * ----- ----- Basin Index (%) 153 136 TONGUE RIVER BIG GOOSE 7990 9.5 7.0 136 11.5 8.5 135 BONE SPRINGS DIV 9350 17.8 13.3 134 14.1 12.6 112 BURGESS JUNCTION 7880 12.1 9.3 130 12.8 9.8 131 DOME LAKE 8880 12.4 9.4 132 11.4 10.7 107 LITTLE GOOSE 8870 10.8 -M * 13.6 -M * SUCKER CREEK 8880 14.2 10.2 139 15.6 11.4 137 TIE CREEK 6870 7.1 4.7 151 12.1 9.0 134 ----- ----- Basin Index (%) 136 125 BELLE FOURCHE COLE CANYON 5910 6.6 5.1 129 12.5 7.4 169 ----- ----- Basin Index (%) 129 169 CHEYENNE RIVER BASIN BLIND PARK 6890 8.6 6.9 125 15.3 10.1 151 NORTH RAPID CREEK 6130 8.5 6.3 135 13.9 8.1 172 ----- ----- Basin Index (%) 130 160 UPPER N. PLATTE ARAPAHO RIDGE 10960 24.3 17.8 137 23.9 18.9 126 BLACKHALL MTN 9820 32.9 -M * 27.8 -M * COLUMBINE 9160 31.4 21.2 148 -M 21.9 * DIVIDE PEAK 8880 17.1 17.0 101 20.2 18.1 112 JOE WRIGHT 10120 18.4 18.5 99 28.5 21.6 132 LAPRELE CREEK 8375 7.3 8.6 85 8.9 10.2 87 MED BOW 10500 11.5 -M * 33.7 -M * NORTH FRENCH CREEK 10130 29.8 23.3 128 30.0 22.6 133 NEVER SUMMER 10280 21.7 17.1 127 16.7 -M * OLD BATTLE 10000 29.5 25.7 115 33.2 30.0 111 RAWAH 9020 12.9 9.3 139 15.3 11.6 132 SAGE CREEK BASIN 7850 11.0 11.7 94 11.1 12.5 89 SAND LAKE 10050 28.6 22.8 125 27.6 20.5 135 SOUTH BRUSH CREEK 8440 10.7 11.2 96 12.7 12.6 101 TOWER 10500 46.5 38.4 121 -M 34.1 * WEBBER SPRINGS 9250 23.2 20.2 115 24.9 22.8 109 WILLOW CREEK PASS 9540 13.1 10.3 127 13.2 11.1 119 ZIRKEL 9340 38.3 25.3 151 18.5 24.7 75 ----- ----- Basin Index (%) 122 113 SWEETWATER DEER PARK 9700 14.9 12.2 122 17.0 16.3 104 LARSEN CREEK 9000 12.9 10.5 123 14.7 -M * SOUTH PASS 9040 14.9 12.6 118 13.8 14.6 95 ----- ----- Basin Index (%) 121 100 LOWER N. PLATTE CASPER MTN. 7900 15.2 11.6 131 13.6 12.0 113 LAPRELE CREEK 8375 7.3 8.6 85 8.9 10.2 87 RENO HILL 8400 14.6 11.3 129 16.6 12.2 136 WINDY PEAK 7900 7.3 6.6 111 10.0 8.6 116 ----- ----- Basin Index (%) 117 114 LARAMIE RIVER BROOKLYN LAKE 10240 27.5 17.0 162 26.5 17.5 151 CINNABAR PARK 9574 20.8 17.8 117 20.3 20.7 98 CROW CREEK 8330 6.5 7.1 92 10.2 8.5 120 DEADMAN HILL 10220 21.9 13.1 167 19.9 14.1 141 RAWAH 9020 12.9 9.3 139 15.3 11.6 132 ROACH 9700 -M 13.5 * -M 16.0 * ----- ----- Basin Index (%) 139 127 S. PLATTE BLACK MOUNTAIN 8920 10.8 -M * 11.6 -M * CROW CREEK 8330 6.5 7.1 92 10.2 8.5 120 DEADMAN HILL 10220 21.9 13.1 167 19.9 14.1 141 ----- ----- Basin Index (%) 141 133 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 10.9 10.7 102 15.2 13.0 117 DIVIDE PEAK 8880 17.1 17.0 101 20.2 18.1 112 ELK RIVER 8700 19.7 17.0 116 20.1 17.2 117 LITTLE SNAKE RIVER 8915 27.6 20.3 136 31.5 26.0 121 OLD BATTLE 10000 29.5 25.7 115 33.2 30.0 111 SAGE CREEK BASIN 7850 11.0 11.7 94 11.1 12.5 89 SANDSTONE RS 8150 11.2 11.8 95 16.0 16.0 100 WHISKEY PARK 8950 35.9 23.5 153 35.0 24.0 146 ----- ----- Basin Index (%) 118 116 UPPER GREEN RIVER BIG SANDY OPENING 9080 14.7 10.8 136 13.8 11.3 122 BLIND BULL SUM 8650 33.9 19.6 173 22.2 17.0 131 EAST RIM DIVIDE 7930 16.6 9.5 175 14.6 10.2 143 ELKHART PARK G.S. 9400 16.6 10.2 163 15.7 11.3 139 GROS VENTRE SUMMIT 8750 14.2 10.9 130 14.0 11.0 127 GUNSIGHT PASS 9820 19.0 11.6 164 17.5 11.7 150 KENDALL R.S. 7740 21.7 10.6 205 -M 12.5 * LOOMIS PARK 8240 23.3 12.8 182 23.4 15.0 156 NEW FORK LAKE 8340 15.5 9.1 170 13.1 9.4 139 POCKET CREEK 9360 12.2 -M * 12.0 -M * SNIDER BASIN 8060 18.6 10.7 174 18.2 12.2 149 SPRING CREEK DIVIDE 9000 32.9 19.7 167 30.0 20.5 146 TRIPLE PEAK 8500 33.0 18.7 176 34.3 21.6 159 ----- ----- Basin Index (%) 169 143 LOWER GREEN RIVER BLACKS FORK JCT 8870 7.6 -M * 11.8 -M * BUCK PASTURE 9700 13.0 -M * 14.7 -M * EF BLACKS FORK GS 9360 8.9 -M * 9.0 -M * HAMS FORK 7840 14.9 10.0 149 12.9 9.7 133 HEWINTA 9519 9.6 8.7 110 12.3 11.6 106 HICKERSON PARK 9145 6.3 6.5 97 7.5 8.2 91 HOLE-IN-ROCK 9150 6.0 6.2 97 7.9 7.7 103 INDIAN CREEK 9425 29.8 20.4 146 24.7 19.1 129 KELLEY R.S. 8180 17.9 12.8 140 19.5 15.5 126 SPIRIT LK 10235 8.4 -M * 11.5 -M * STEEL CREEK PARK 10200 16.9 12.7 133 14.3 13.4 107 ----- ----- Basin Index (%) 131 116 UPPER BEAR RIVER BEAR RIVER RS 8777 9.0 -M * 11.0 -M * BUG LAKE 7950 21.0 16.3 129 18.3 16.6 110 BURTS MILLER RANCH 8000 6.7 -M * 6.0 -M * CHALK CREEK #1 8993 20.3 20.2 100 20.2 21.0 96 HAYDEN FORK 9212 14.3 13.6 105 18.3 17.6 104 KELLEY R.S. 8180 17.9 12.8 140 19.5 15.5 126 LILY LAKE 9156 12.5 11.2 112 13.7 14.3 96 MONTE CRISTO 8960 24.7 23.0 107 22.6 22.0 103 SALT RIVER SUMMIT 7760 17.2 11.3 152 18.0 14.3 126 ----- ----- Basin Index (%) 118 108 ----------------------------------------------------------------------------- -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.