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 TUESDAY: MARCH 11 , 2014 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 22.4 13.8 162 23.0 18.2 126 BLACK BEAR 8170 37.1 31.5 118 34.0 33.1 103 BLIND BULL SUM 8650 34.0 19.4 175 22.3 16.9 132 COTTONWOOD CREEK 7670 28.4 18.5 154 30.6 20.7 148 EAST RIM DIVIDE 7930 16.5 9.4 176 14.6 10.2 143 GRAND TARGHEE 9260 44.1 31.9 138 33.0 25.7 128 GRANITE CREEK 6770 -M 14.6 * -M 17.5 * GRASSY LAKE 7265 35.2 27.6 128 33.3 31.2 107 GROS VENTRE SUMMIT 8750 14.3 10.9 131 14.0 10.9 128 GUNSIGHT PASS 9820 19.0 11.6 164 17.5 11.6 151 LEWIS LAKE DIVIDE 7850 34.2 26.5 129 -M 30.8 * PHILLIPS BENCH 8200 31.7 21.2 150 -M 24.2 * SALT RIVER SUMMIT 7760 17.0 11.2 152 17.8 14.2 125 SNAKE RIVER STATION 6920 19.6 15.2 129 22.2 19.6 113 SPRING CREEK DIVIDE 9000 32.7 19.6 167 30.0 20.4 147 THUMB DIVIDE 7980 15.8 13.2 120 14.4 15.8 91 TOGWOTEE PASS 9580 29.2 19.5 150 25.0 20.7 121 TWO OCEAN PLATEAU 9240 35.7 23.1 155 -M 23.3 * WILLOW CREEK 8380 36.1 24.1 150 -M 28.5 * YOUNTS PEAK 8350 -M 12.4 * -M 13.4 * ----- ----- Basin Index (%) 144 123 MADISON-GALLATIN BLACK BEAR 8170 37.1 31.5 118 34.0 33.1 103 CANYON 7870 12.8 11.5 111 14.5 14.0 104 MADISON PLATEAU 7750 21.2 19.3 110 21.0 22.8 92 WEST YELLOWSTONE 6700 11.9 9.7 123 13.6 12.4 110 WHISKEY CREEK 6800 15.1 13.2 114 17.6 17.4 101 ----- ----- Basin Index (%) 115 101 YELLOWSTONE BEARTOOTH LAKE 9360 27.9 18.4 152 25.4 16.8 151 BURNT MTN 5880 8.3 4.3 193 15.7 10.2 154 CANYON 7870 12.8 11.5 111 14.5 14.0 104 COLE CREEK 7850 16.0 11.2 143 11.5 9.9 116 EVENING STAR 9200 34.8 20.9 167 34.1 23.4 146 FISHER CREEK 9100 39.1 27.0 145 34.4 27.2 126 NORTHEAST ENTRANCE 7350 13.7 8.6 159 13.7 10.5 130 PARKER PEAK 9400 27.1 16.7 162 21.9 15.0 146 SYLVAN LAKE 8420 21.2 17.0 125 24.0 19.0 126 THUMB DIVIDE 7980 15.8 13.2 120 14.4 15.8 91 TWO OCEAN PLATEAU 9240 35.7 23.1 155 -M 23.3 * WHITE MILL 8700 29.9 19.2 156 25.5 20.3 126 WOLVERINE 7650 15.3 9.0 170 15.0 10.5 143 ----- ----- Basin Index (%) 149 130 WIND RIVER BURROUGHS CREEK 8750 -M 11.5 * -M 13.5 * CASTLE CREEK 8400 10.2 -M * 11.9 -M * COLD SPRINGS 9630 9.8 5.9 166 12.1 8.0 151 DEER PARK 9700 14.4 12.1 119 16.7 16.3 102 HOBBS PARK 10100 12.4 11.0 113 11.0 10.4 106 KIRWIN 9550 16.9 7.8 217 15.4 9.4 164 LITTLE WARM 9370 13.6 8.7 156 15.8 10.5 150 OWL CREEK 8975 6.4 4.3 149 6.4 4.6 139 SOUTH PASS 9040 14.4 12.5 115 13.4 14.5 92 ST. LAWRENCE ALT 8620 3.9 5.9 66 7.4 7.0 106 TOGWOTEE PASS 9580 29.2 19.5 150 25.0 20.7 121 TOWNSEND CREEK 8700 5.9 7.4 80 7.0 9.4 74 ----- ----- Basin Index (%) 133 118 BIGHORN BASIN BALD MTN. 9380 20.6 16.0 129 16.0 13.9 115 BEAR TRAP MEADOW 8200 9.1 4.7 194 9.0 6.6 136 BONE SPRINGS DIV 9350 17.8 13.3 134 14.0 12.6 111 GRAVE SPRINGS 8550 9.8 7.5 131 10.0 8.3 120 KIRWIN 9550 16.9 7.8 217 15.4 9.4 164 MARQUETTE 8760 10.4 -M * 10.3 -M * MIDDLE POWDER 7760 13.2 8.8 150 10.9 9.3 117 OWL CREEK 8975 6.4 4.3 149 6.4 4.6 139 POWDER RIVER PASS 9480 13.5 8.5 159 14.2 10.2 139 SHELL CREEK 9580 16.4 12.3 133 14.0 11.2 125 TIMBER CREEK 7950 5.4 4.1 132 7.2 5.6 129 ----- ----- Basin Index (%) 148 128 SHOSHONE RIVER BLACKWATER 9780 28.6 19.1 150 25.2 17.2 147 EVENING STAR 9200 34.8 20.9 167 34.1 23.4 146 MARQUETTE 8760 10.4 -M * 10.3 -M * SYLVAN ROAD 7120 14.4 10.0 144 18.8 14.6 129 YOUNTS PEAK 8350 -M 12.4 * -M 13.4 * ----- ----- Basin Index (%) 156 141 POWDER RIVER BEAR TRAP MEADOW 8200 9.1 4.7 194 9.0 6.6 136 CLOUD PEAK RESERVOIR 9860 16.4 11.8 139 14.2 10.3 138 GRAVE SPRINGS 8550 9.8 7.5 131 10.0 8.3 120 HANSEN SAWMILL 8360 8.2 5.2 158 10.4 6.6 158 MIDDLE POWDER 7760 13.2 8.8 150 10.9 9.3 117 POWDER RIVER PASS 9480 13.5 8.5 159 14.2 10.2 139 SOLDIER PARK 8720 10.4 -M * 9.3 -M * ----- ----- Basin Index (%) 151 134 TONGUE RIVER BIG GOOSE 7990 8.9 6.9 129 10.8 8.4 129 BONE SPRINGS DIV 9350 17.8 13.3 134 14.0 12.6 111 BURGESS JUNCTION 7880 11.6 9.3 125 12.6 9.7 130 DOME LAKE 8880 11.9 9.4 127 10.9 10.6 103 LITTLE GOOSE 8870 10.2 -M * 13.0 -M * SUCKER CREEK 8880 13.6 10.1 135 15.1 11.4 132 TIE CREEK 6870 6.5 4.7 138 11.6 9.0 129 ----- ----- Basin Index (%) 131 122 BELLE FOURCHE COLE CANYON 5910 6.4 5.1 125 12.4 7.4 168 ----- ----- Basin Index (%) 125 168 CHEYENNE RIVER BASIN BLIND PARK 6890 8.2 6.8 121 15.0 10.0 150 NORTH RAPID CREEK 6130 8.2 6.3 130 13.7 8.1 169 ----- ----- Basin Index (%) 125 159 UPPER N. PLATTE ARAPAHO RIDGE 10960 24.4 17.7 138 23.9 18.8 127 BLACKHALL MTN 9820 32.5 -M * 28.1 -M * COLUMBINE 9160 31.5 21.1 149 -M 21.8 * DIVIDE PEAK 8880 16.3 17.0 96 19.6 18.0 109 JOE WRIGHT 10120 18.4 18.4 100 27.6 21.4 129 LAPRELE CREEK 8375 7.4 8.5 87 8.8 10.1 87 MED BOW 10500 12.7 -M * 28.6 -M * NORTH FRENCH CREEK 10130 -M 23.0 * -M 22.5 * NEVER SUMMER 10280 21.8 17.0 128 16.7 -M * OLD BATTLE 10000 29.4 25.6 115 32.6 29.8 109 RAWAH 9020 12.3 9.3 132 15.0 11.5 130 SAGE CREEK BASIN 7850 9.9 11.6 85 10.8 12.4 87 SAND LAKE 10050 27.9 22.6 123 26.7 20.4 131 SOUTH BRUSH CREEK 8440 10.4 11.1 94 12.6 12.6 100 TOWER 10500 46.4 38.2 121 -M 33.9 * WEBBER SPRINGS 9250 22.7 20.2 112 24.7 22.6 109 WILLOW CREEK PASS 9540 13.0 10.3 126 13.2 11.0 120 ZIRKEL 9340 38.3 25.2 152 25.0 24.6 102 ----- ----- Basin Index (%) 121 113 SWEETWATER DEER PARK 9700 14.4 12.1 119 16.7 16.3 102 LARSEN CREEK 9000 12.9 10.4 124 14.7 -M * SOUTH PASS 9040 14.4 12.5 115 13.4 14.5 92 ----- ----- Basin Index (%) 119 98 LOWER N. PLATTE CASPER MTN. 7900 14.5 11.5 126 13.1 11.9 110 LAPRELE CREEK 8375 7.4 8.5 87 8.8 10.1 87 RENO HILL 8400 13.5 11.2 121 15.8 12.0 132 WINDY PEAK 7900 7.0 6.6 106 9.6 8.5 113 ----- ----- Basin Index (%) 112 111 LARAMIE RIVER BROOKLYN LAKE 10240 27.3 16.8 162 26.4 17.4 152 CINNABAR PARK 9574 20.5 17.8 115 20.5 20.6 100 CROW CREEK 8330 6.5 7.1 92 10.0 8.4 119 DEADMAN HILL 10220 21.3 13.0 164 20.1 14.0 144 RAWAH 9020 12.3 9.3 132 15.0 11.5 130 ROACH 9700 -M 13.4 * -M 15.9 * ----- ----- Basin Index (%) 137 128 S. PLATTE BLACK MOUNTAIN 8920 10.5 -M * 11.3 -M * CROW CREEK 8330 6.5 7.1 92 10.0 8.4 119 DEADMAN HILL 10220 21.3 13.0 164 20.1 14.0 144 ----- ----- Basin Index (%) 138 134 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 10.5 10.6 99 15.2 12.9 118 DIVIDE PEAK 8880 16.3 17.0 96 19.6 18.0 109 ELK RIVER 8700 19.4 16.9 115 19.7 17.1 115 LITTLE SNAKE RIVER 8915 26.9 20.3 133 30.8 25.8 119 OLD BATTLE 10000 29.4 25.6 115 32.6 29.8 109 SAGE CREEK BASIN 7850 9.9 11.6 85 10.8 12.4 87 SANDSTONE RS 8150 10.8 11.8 92 15.7 16.0 98 WHISKEY PARK 8950 35.4 23.3 152 34.9 23.9 146 ----- ----- Basin Index (%) 116 115 UPPER GREEN RIVER BIG SANDY OPENING 9080 14.8 10.8 137 13.8 11.2 123 BLIND BULL SUM 8650 34.0 19.4 175 22.3 16.9 132 EAST RIM DIVIDE 7930 16.5 9.4 176 14.6 10.2 143 ELKHART PARK G.S. 9400 16.7 10.1 165 15.8 11.1 142 GROS VENTRE SUMMIT 8750 14.3 10.9 131 14.0 10.9 128 GUNSIGHT PASS 9820 19.0 11.6 164 17.5 11.6 151 KENDALL R.S. 7740 21.8 10.5 208 -M 12.5 * LOOMIS PARK 8240 23.4 12.7 184 23.4 14.9 157 NEW FORK LAKE 8340 15.5 9.0 172 13.1 9.3 141 POCKET CREEK 9360 12.2 -M * 12.1 -M * SNIDER BASIN 8060 18.7 10.6 176 18.3 12.2 150 SPRING CREEK DIVIDE 9000 32.7 19.6 167 30.0 20.4 147 TRIPLE PEAK 8500 32.8 18.6 176 34.2 21.6 158 ----- ----- Basin Index (%) 170 144 LOWER GREEN RIVER BLACKS FORK JCT 8870 7.5 -M * 11.6 -M * BUCK PASTURE 9700 12.7 -M * 14.3 -M * EF BLACKS FORK GS 9360 8.8 -M * 8.9 -M * HAMS FORK 7840 14.8 10.0 148 12.8 9.6 133 HEWINTA 9519 9.5 8.6 110 12.2 11.5 106 HICKERSON PARK 9145 6.2 6.4 97 7.7 8.1 95 HOLE-IN-ROCK 9150 5.8 6.1 95 7.8 7.6 103 INDIAN CREEK 9425 29.7 20.3 146 24.6 19.0 129 KELLEY R.S. 8180 17.8 12.7 140 19.4 15.4 126 SPIRIT LK 10235 8.0 -M * 11.2 -M * STEEL CREEK PARK 10200 16.7 12.6 133 14.0 13.3 105 ----- ----- Basin Index (%) 131 117 UPPER BEAR RIVER BEAR RIVER RS 8777 8.7 -M * 10.8 -M * BUG LAKE 7950 20.7 16.1 129 18.2 16.4 111 BURTS MILLER RANCH 8000 6.3 -M * 6.1 -M * CHALK CREEK #1 8993 19.9 20.0 100 19.9 20.8 96 HAYDEN FORK 9212 14.1 13.4 105 18.1 17.4 104 KELLEY R.S. 8180 17.8 12.7 140 19.4 15.4 126 LILY LAKE 9156 12.3 11.1 111 13.5 14.1 96 MONTE CRISTO 8960 24.4 22.9 107 22.3 21.8 102 SALT RIVER SUMMIT 7760 17.0 11.2 152 17.8 14.2 125 ----- ----- 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.