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 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 23.2 14.7 158 23.9 18.9 126 BLACK BEAR 8170 37.8 32.4 117 35.0 34.3 102 BLIND BULL SUM 8650 34.6 20.4 170 22.4 17.6 127 COTTONWOOD CREEK 7670 29.6 19.7 150 32.1 21.8 147 EAST RIM DIVIDE 7930 16.8 9.5 177 14.6 10.5 139 GRAND TARGHEE 9260 47.0 32.9 143 34.5 26.9 128 GRANITE CREEK 6770 23.0 15.0 153 23.2 18.1 128 GRASSY LAKE 7265 36.3 29.3 124 34.8 32.5 107 GROS VENTRE SUMMIT 8750 14.2 11.6 122 14.3 11.4 125 GUNSIGHT PASS 9820 19.5 12.0 162 17.9 12.0 149 LEWIS LAKE DIVIDE 7850 34.4 27.6 125 31.3 31.9 98 PHILLIPS BENCH 8200 33.1 22.3 148 -M 25.2 * SALT RIVER SUMMIT 7760 17.4 12.0 145 18.4 14.9 123 SNAKE RIVER STATION 6920 20.3 15.1 134 23.0 20.3 113 SPRING CREEK DIVIDE 9000 33.7 20.9 161 31.1 21.3 146 THUMB DIVIDE 7980 16.2 14.0 116 14.9 16.4 91 TOGWOTEE PASS 9580 30.1 20.5 147 -M 21.6 * TWO OCEAN PLATEAU 9240 36.8 23.9 154 -M 24.2 * WILLOW CREEK 8380 37.8 25.4 149 36.9 29.8 124 YOUNTS PEAK 8350 -M 13.4 * -M 14.0 * ----- ----- Basin Index (%) 143 121 MADISON-GALLATIN BLACK BEAR 8170 37.8 32.4 117 35.0 34.3 102 CANYON 7870 13.5 11.7 115 15.0 14.5 103 MADISON PLATEAU 7750 21.6 20.0 108 21.7 23.5 92 WEST YELLOWSTONE 6700 12.3 9.9 124 13.8 12.7 109 WHISKEY CREEK 6800 15.5 14.1 110 18.1 18.0 101 ----- ----- Basin Index (%) 114 101 YELLOWSTONE BEARTOOTH LAKE 9360 28.8 19.1 151 26.1 17.6 148 BURNT MTN 5880 9.5 4.5 211 16.7 10.8 155 CANYON 7870 13.5 11.7 115 15.0 14.5 103 COLE CREEK 7850 18.6 11.9 156 12.9 10.6 122 EVENING STAR 9200 35.6 22.0 162 35.0 24.3 144 FISHER CREEK 9100 40.0 28.2 142 35.1 28.4 124 NORTHEAST ENTRANCE 7350 14.2 9.0 158 14.1 10.9 129 PARKER PEAK 9400 28.1 17.5 161 22.0 15.6 141 SYLVAN LAKE 8420 21.8 18.0 121 24.8 19.8 125 THUMB DIVIDE 7980 16.2 14.0 116 14.9 16.4 91 TWO OCEAN PLATEAU 9240 36.8 23.9 154 -M 24.2 * WHITE MILL 8700 30.7 19.7 156 26.0 21.1 123 WOLVERINE 7650 14.8 8.9 166 15.2 10.9 139 ----- ----- Basin Index (%) 148 128 WIND RIVER BURROUGHS CREEK 8750 -M 12.2 * -M 14.2 * CASTLE CREEK 8400 10.2 -M * 12.0 -M * COLD SPRINGS 9630 9.5 6.3 151 12.6 8.5 148 DEER PARK 9700 15.7 13.1 120 17.9 17.0 105 HOBBS PARK 10100 14.3 11.6 123 12.7 11.0 115 KIRWIN 9550 17.7 8.4 211 16.2 9.9 164 LITTLE WARM 9370 13.9 9.2 151 16.1 11.1 145 OWL CREEK 8975 6.8 4.6 148 6.9 4.9 141 SOUTH PASS 9040 15.5 13.6 114 14.3 15.2 94 ST. LAWRENCE ALT 8620 4.8 6.1 79 8.0 7.4 108 TOGWOTEE PASS 9580 30.1 20.5 147 -M 21.6 * TOWNSEND CREEK 8700 7.5 8.1 93 8.3 10.0 83 ----- ----- Basin Index (%) 134 119 BIGHORN BASIN BALD MTN. 9380 22.6 16.4 138 17.3 14.7 118 BEAR TRAP MEADOW 8200 9.7 5.0 194 9.7 7.0 139 BONE SPRINGS DIV 9350 19.1 14.0 136 14.9 13.3 112 GRAVE SPRINGS 8550 11.2 8.1 138 11.1 8.9 125 KIRWIN 9550 17.7 8.4 211 16.2 9.9 164 MARQUETTE 8760 12.0 -M * 11.3 -M * MIDDLE POWDER 7760 14.9 9.6 155 12.0 9.9 121 OWL CREEK 8975 6.8 4.6 148 6.9 4.9 141 POWDER RIVER PASS 9480 14.3 9.0 159 15.0 10.7 140 SHELL CREEK 9580 17.7 12.8 138 15.1 11.8 128 TIMBER CREEK 7950 5.9 4.2 140 7.6 6.1 125 ----- ----- Basin Index (%) 152 129 SHOSHONE RIVER BLACKWATER 9780 29.3 20.6 142 26.3 18.0 146 EVENING STAR 9200 35.6 22.0 162 35.0 24.3 144 MARQUETTE 8760 12.0 -M * 11.3 -M * SYLVAN ROAD 7120 14.7 10.4 141 19.2 15.1 127 YOUNTS PEAK 8350 -M 13.4 * -M 14.0 * ----- ----- Basin Index (%) 150 140 POWDER RIVER BEAR TRAP MEADOW 8200 9.7 5.0 194 9.7 7.0 139 CLOUD PEAK RESERVOIR 9860 19.1 12.8 149 16.7 11.1 150 GRAVE SPRINGS 8550 11.2 8.1 138 11.1 8.9 125 HANSEN SAWMILL 8360 8.9 5.6 159 10.9 7.1 154 MIDDLE POWDER 7760 14.9 9.6 155 12.0 9.9 121 POWDER RIVER PASS 9480 14.3 9.0 159 15.0 10.7 140 SOLDIER PARK 8720 11.6 -M * 10.3 -M * ----- ----- Basin Index (%) 156 138 TONGUE RIVER BIG GOOSE 7990 11.3 7.7 147 13.4 9.2 146 BONE SPRINGS DIV 9350 19.1 14.0 136 14.9 13.3 112 BURGESS JUNCTION 7880 13.8 9.5 145 14.4 10.4 138 DOME LAKE 8880 14.0 10.1 139 13.0 11.4 114 LITTLE GOOSE 8870 12.9 -M * 15.4 -M * SUCKER CREEK 8880 16.3 10.8 151 17.5 12.1 145 TIE CREEK 6870 8.7 5.0 174 13.7 9.7 141 ----- ----- Basin Index (%) 146 131 BELLE FOURCHE COLE CANYON 5910 7.5 5.5 136 13.0 7.8 167 ----- ----- Basin Index (%) 136 167 CHEYENNE RIVER BASIN BLIND PARK 6890 9.0 7.2 125 15.7 10.5 150 NORTH RAPID CREEK 6130 9.2 6.5 142 14.4 8.5 169 ----- ----- Basin Index (%) 133 158 UPPER N. PLATTE ARAPAHO RIDGE 10960 24.9 18.0 138 24.4 19.6 124 BLACKHALL MTN 9820 34.6 -M * 28.0 -M * COLUMBINE 9160 32.7 21.9 149 33.7 22.7 148 DIVIDE PEAK 8880 18.1 17.5 103 20.9 19.0 110 JOE WRIGHT 10120 21.1 19.0 111 29.2 22.7 129 LAPRELE CREEK 8375 8.8 9.1 97 10.4 10.8 96 MED BOW 10500 10.9 -M * 34.2 -M * NORTH FRENCH CREEK 10130 32.7 24.9 131 31.2 23.5 133 NEVER SUMMER 10280 22.7 17.7 128 16.9 -M * OLD BATTLE 10000 31.0 26.2 118 33.9 31.2 109 RAWAH 9020 13.6 9.3 146 16.1 12.0 134 SAGE CREEK BASIN 7850 12.0 11.6 103 11.5 12.9 89 SAND LAKE 10050 31.5 24.4 129 30.2 21.5 140 SOUTH BRUSH CREEK 8440 11.9 11.1 107 13.8 13.2 105 TOWER 10500 47.6 39.7 120 -M 35.5 * WEBBER SPRINGS 9250 24.5 21.0 117 25.7 23.7 108 WILLOW CREEK PASS 9540 13.5 10.8 125 13.0 11.6 112 ZIRKEL 9340 38.9 25.8 151 37.3 25.3 147 ----- ----- Basin Index (%) 125 123 SWEETWATER DEER PARK 9700 15.7 13.1 120 17.9 17.0 105 LARSEN CREEK 9000 12.9 11.1 116 14.9 -M * SOUTH PASS 9040 15.5 13.6 114 14.3 15.2 94 ----- ----- Basin Index (%) 117 100 LOWER N. PLATTE CASPER MTN. 7900 16.9 12.1 140 14.7 12.6 117 LAPRELE CREEK 8375 8.8 9.1 97 10.4 10.8 96 RENO HILL 8400 16.9 11.9 142 17.2 12.8 134 WINDY PEAK 7900 8.7 7.0 124 11.2 9.0 124 ----- ----- Basin Index (%) 128 118 LARAMIE RIVER BROOKLYN LAKE 10240 29.5 17.6 168 26.7 18.3 146 CINNABAR PARK 9574 22.2 17.9 124 20.7 21.2 98 CROW CREEK 8330 6.8 7.0 97 10.8 8.8 123 DEADMAN HILL 10220 23.2 13.8 168 21.3 14.9 143 RAWAH 9020 13.6 9.3 146 16.1 12.0 134 ROACH 9700 19.5 13.9 140 22.0 16.8 131 ----- ----- Basin Index (%) 144 128 S. PLATTE BLACK MOUNTAIN 8920 11.7 -M * -M -M * CROW CREEK 8330 6.8 7.0 97 10.8 8.8 123 DEADMAN HILL 10220 23.2 13.8 168 21.3 14.9 143 ----- ----- Basin Index (%) 144 135 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 12.2 11.3 108 15.8 13.4 118 DIVIDE PEAK 8880 18.1 17.5 103 20.9 19.0 110 ELK RIVER 8700 20.4 17.3 118 20.5 17.8 115 LITTLE SNAKE RIVER 8915 29.3 21.0 140 31.8 26.3 121 OLD BATTLE 10000 31.0 26.2 118 33.9 31.2 109 SAGE CREEK BASIN 7850 12.0 11.6 103 11.5 12.9 89 SANDSTONE RS 8150 11.5 12.0 96 16.7 16.6 101 WHISKEY PARK 8950 38.0 24.2 157 34.9 24.8 141 ----- ----- Basin Index (%) 122 115 UPPER GREEN RIVER BIG SANDY OPENING 9080 14.9 11.6 128 14.1 11.7 121 BLIND BULL SUM 8650 34.6 20.4 170 22.4 17.6 127 EAST RIM DIVIDE 7930 16.8 9.5 177 14.6 10.5 139 ELKHART PARK G.S. 9400 16.9 10.6 159 15.8 11.8 134 GROS VENTRE SUMMIT 8750 14.2 11.6 122 14.3 11.4 125 GUNSIGHT PASS 9820 19.5 12.0 162 17.9 12.0 149 KENDALL R.S. 7740 22.1 11.2 197 -M 12.9 * LOOMIS PARK 8240 23.8 13.3 179 23.4 15.5 151 NEW FORK LAKE 8340 15.6 9.3 168 13.1 9.6 136 POCKET CREEK 9360 12.3 -M * 12.1 -M * SNIDER BASIN 8060 19.4 11.0 176 18.6 12.7 146 SPRING CREEK DIVIDE 9000 33.7 20.9 161 31.1 21.3 146 TRIPLE PEAK 8500 33.9 19.3 176 35.3 22.6 156 ----- ----- Basin Index (%) 165 141 LOWER GREEN RIVER BLACKS FORK JCT 8870 7.8 -M * 12.2 -M * BUCK PASTURE 9700 13.5 -M * 15.1 -M * EF BLACKS FORK GS 9360 9.3 -M * 9.3 -M * HAMS FORK 7840 15.5 10.2 152 13.1 10.1 130 HEWINTA 9519 9.9 9.8 101 12.6 12.2 103 HICKERSON PARK 9145 7.2 6.6 109 8.0 8.8 91 HOLE-IN-ROCK 9150 5.8 6.6 88 8.3 8.2 101 INDIAN CREEK 9425 30.7 21.2 145 25.1 20.0 126 KELLEY R.S. 8180 18.2 13.3 137 19.8 16.1 123 SPIRIT LK 10235 8.9 -M * 12.0 -M * STEEL CREEK PARK 10200 16.9 13.4 126 14.6 14.2 103 ----- ----- Basin Index (%) 128 113 UPPER BEAR RIVER BEAR RIVER RS 8777 9.7 -M * 11.2 -M * BUG LAKE 7950 21.7 16.6 131 18.6 17.3 108 BURTS MILLER RANCH 8000 7.5 -M * 6.1 -M * CHALK CREEK #1 8993 20.8 21.0 99 20.7 22.0 94 HAYDEN FORK 9212 15.2 14.2 107 18.7 18.4 102 KELLEY R.S. 8180 18.2 13.3 137 19.8 16.1 123 LILY LAKE 9156 12.9 11.4 113 13.9 14.9 93 MONTE CRISTO 8960 25.4 24.2 105 23.1 23.0 100 SALT RIVER SUMMIT 7760 17.4 12.0 145 18.4 14.9 123 ----- ----- Basin Index (%) 117 105 ----------------------------------------------------------------------------- -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.