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 SUNDAY: MARCH 23 , 2014 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 23.3 14.6 160 24.0 19.2 125 BLACK BEAR 8170 37.4 33.1 113 34.4 34.9 99 BLIND BULL SUM 8650 34.7 20.8 167 22.4 17.9 125 COTTONWOOD CREEK 7670 29.5 20.3 145 32.1 22.3 144 EAST RIM DIVIDE 7930 16.9 9.6 176 14.7 10.7 137 GRAND TARGHEE 9260 46.2 33.4 138 34.7 27.4 127 GRANITE CREEK 6770 23.2 14.7 158 23.3 18.3 127 GRASSY LAKE 7265 36.5 29.7 123 34.8 33.1 105 GROS VENTRE SUMMIT 8750 14.3 11.8 121 14.4 11.6 124 GUNSIGHT PASS 9820 19.7 12.3 160 17.9 12.2 147 LEWIS LAKE DIVIDE 7850 34.1 28.2 121 -M 32.5 * PHILLIPS BENCH 8200 32.9 22.8 144 32.0 25.6 125 SALT RIVER SUMMIT 7760 17.3 12.2 142 18.4 15.2 121 SNAKE RIVER STATION 6920 20.5 15.5 132 23.1 20.6 112 SPRING CREEK DIVIDE 9000 33.8 21.6 156 31.2 21.8 143 THUMB DIVIDE 7980 16.3 14.4 113 15.0 16.7 90 TOGWOTEE PASS 9580 30.0 20.9 144 -M 22.0 * TWO OCEAN PLATEAU 9240 36.6 24.4 150 -M 24.8 * WILLOW CREEK 8380 38.1 25.3 151 38.4 30.4 126 YOUNTS PEAK 8350 -M 13.6 * -M 14.3 * ----- ----- Basin Index (%) 140 122 MADISON-GALLATIN BLACK BEAR 8170 37.4 33.1 113 34.4 34.9 99 CANYON 7870 13.5 11.8 114 14.9 14.7 101 MADISON PLATEAU 7750 21.5 20.4 105 21.7 23.9 91 WEST YELLOWSTONE 6700 12.7 10.0 127 13.8 12.8 108 WHISKEY CREEK 6800 15.4 14.4 107 18.2 18.4 99 ----- ----- Basin Index (%) 112 98 YELLOWSTONE BEARTOOTH LAKE 9360 28.9 19.8 146 -M 18.0 * BURNT MTN 5880 9.4 4.7 200 16.8 11.0 153 CANYON 7870 13.5 11.8 114 14.9 14.7 101 COLE CREEK 7850 18.6 12.3 151 13.1 11.0 119 EVENING STAR 9200 35.6 22.7 157 -M 24.8 * FISHER CREEK 9100 39.8 28.4 140 35.1 29.0 121 NORTHEAST ENTRANCE 7350 14.2 9.3 153 14.1 11.1 127 PARKER PEAK 9400 28.2 17.9 158 21.6 15.9 136 SYLVAN LAKE 8420 21.7 18.4 118 24.8 20.2 123 THUMB DIVIDE 7980 16.3 14.4 113 15.0 16.7 90 TWO OCEAN PLATEAU 9240 36.6 24.4 150 -M 24.8 * WHITE MILL 8700 30.8 20.4 151 26.3 21.5 122 WOLVERINE 7650 14.0 8.9 157 15.2 11.1 137 ----- ----- Basin Index (%) 144 121 WIND RIVER BURROUGHS CREEK 8750 -M 12.5 * -M 14.4 * CASTLE CREEK 8400 10.2 -M * 11.8 -M * COLD SPRINGS 9630 9.3 6.6 141 12.7 8.7 146 DEER PARK 9700 -M 13.9 * 17.9 17.4 103 HOBBS PARK 10100 14.4 12.2 118 12.6 11.3 112 KIRWIN 9550 17.7 8.5 208 16.2 10.2 159 LITTLE WARM 9370 13.8 9.4 147 16.1 11.3 142 OWL CREEK 8975 7.1 4.7 151 6.8 5.1 133 SOUTH PASS 9040 15.6 14.3 109 14.4 15.5 93 ST. LAWRENCE ALT 8620 4.4 6.4 69 7.5 7.7 97 TOGWOTEE PASS 9580 30.0 20.9 144 -M 22.0 * TOWNSEND CREEK 8700 7.3 8.5 86 8.2 10.2 80 ----- ----- Basin Index (%) 131 115 BIGHORN BASIN BALD MTN. 9380 22.9 16.6 138 17.4 15.1 115 BEAR TRAP MEADOW 8200 9.7 5.2 187 9.8 7.3 134 BONE SPRINGS DIV 9350 19.4 14.2 137 14.9 13.6 110 GRAVE SPRINGS 8550 11.2 8.3 135 11.2 9.2 122 KIRWIN 9550 17.7 8.5 208 16.2 10.2 159 MARQUETTE 8760 12.8 -M * 11.6 -M * MIDDLE POWDER 7760 15.0 10.2 147 12.2 10.3 118 OWL CREEK 8975 7.1 4.7 151 6.8 5.1 133 POWDER RIVER PASS 9480 14.5 9.4 154 15.2 11.1 137 SHELL CREEK 9580 17.9 13.1 137 15.3 12.1 126 TIMBER CREEK 7950 6.0 4.1 146 7.6 6.3 121 ----- ----- Basin Index (%) 150 126 SHOSHONE RIVER BLACKWATER 9780 29.5 21.0 140 26.4 18.4 143 EVENING STAR 9200 35.6 22.7 157 -M 24.8 * MARQUETTE 8760 12.8 -M * 11.6 -M * SYLVAN ROAD 7120 14.9 10.6 141 19.2 15.3 125 YOUNTS PEAK 8350 -M 13.6 * -M 14.3 * ----- ----- Basin Index (%) 147 135* POWDER RIVER BEAR TRAP MEADOW 8200 9.7 5.2 187 9.8 7.3 134 CLOUD PEAK RESERVOIR 9860 19.3 13.2 146 16.9 11.5 147 GRAVE SPRINGS 8550 11.2 8.3 135 11.2 9.2 122 HANSEN SAWMILL 8360 9.1 5.8 157 11.1 7.4 150 MIDDLE POWDER 7760 15.0 10.2 147 12.2 10.3 118 POWDER RIVER PASS 9480 14.5 9.4 154 15.2 11.1 137 SOLDIER PARK 8720 11.8 -M * 10.5 -M * ----- ----- Basin Index (%) 151 135 TONGUE RIVER BIG GOOSE 7990 11.3 8.0 141 13.5 9.4 144 BONE SPRINGS DIV 9350 19.4 14.2 137 14.9 13.6 110 BURGESS JUNCTION 7880 14.1 9.8 144 14.6 10.7 136 DOME LAKE 8880 14.2 10.5 135 13.1 11.7 112 LITTLE GOOSE 8870 12.9 -M * 15.4 -M * SUCKER CREEK 8880 16.5 11.0 150 17.6 12.5 141 TIE CREEK 6870 8.7 5.1 171 13.6 9.9 137 ----- ----- Basin Index (%) 144 129 BELLE FOURCHE COLE CANYON 5910 7.4 5.6 132 13.4 8.0 168 ----- ----- Basin Index (%) 132 168 CHEYENNE RIVER BASIN BLIND PARK 6890 8.8 7.1 124 15.8 10.6 149 NORTH RAPID CREEK 6130 9.3 6.6 141 14.2 8.7 163 ----- ----- Basin Index (%) 132 155 UPPER N. PLATTE ARAPAHO RIDGE 10960 25.2 18.2 138 24.7 19.9 124 BLACKHALL MTN 9820 35.0 -M * 27.7 -M * COLUMBINE 9160 33.0 22.1 149 -M 23.3 * DIVIDE PEAK 8880 18.1 18.0 101 20.9 19.4 108 JOE WRIGHT 10120 21.6 19.3 112 29.5 23.2 127 LAPRELE CREEK 8375 8.7 9.3 94 10.4 11.0 95 MED BOW 10500 9.0 -M * 34.2 -M * NORTH FRENCH CREEK 10130 33.1 26.1 127 32.2 24.0 134 NEVER SUMMER 10280 23.2 18.2 127 17.2 -M * OLD BATTLE 10000 31.4 27.1 116 34.4 31.9 108 RAWAH 9020 14.0 9.7 144 16.5 12.4 133 SAGE CREEK BASIN 7850 12.3 11.6 106 11.5 13.0 88 SAND LAKE 10050 31.6 25.3 125 30.4 22.0 138 SOUTH BRUSH CREEK 8440 12.0 11.3 106 13.8 13.6 101 TOWER 10500 48.2 40.7 118 -M 36.2 * WEBBER SPRINGS 9250 24.8 21.5 115 26.7 24.2 110 WILLOW CREEK PASS 9540 14.0 11.1 126 13.7 11.9 115 ZIRKEL 9340 39.4 25.5 155 -M 25.6 * ----- ----- Basin Index (%) 124 117 SWEETWATER DEER PARK 9700 -M 13.9 * 17.9 17.4 103 LARSEN CREEK 9000 13.0 11.4 114 15.0 -M * SOUTH PASS 9040 15.6 14.3 109 14.4 15.5 93 ----- ----- Basin Index (%) 111 98 LOWER N. PLATTE CASPER MTN. 7900 17.1 12.6 136 14.7 13.0 113 LAPRELE CREEK 8375 8.7 9.3 94 10.4 11.0 95 RENO HILL 8400 16.9 12.3 137 18.8 13.2 142 WINDY PEAK 7900 8.7 7.4 118 11.3 9.2 123 ----- ----- Basin Index (%) 124 119 LARAMIE RIVER BROOKLYN LAKE 10240 29.7 18.0 165 26.8 18.8 143 CINNABAR PARK 9574 22.0 18.7 118 27.6 21.6 128 CROW CREEK 8330 7.1 6.9 103 11.0 9.1 121 DEADMAN HILL 10220 23.7 14.2 167 22.1 15.2 145 RAWAH 9020 14.0 9.7 144 16.5 12.4 133 ROACH 9700 19.9 14.3 139 22.3 17.1 130 ----- ----- Basin Index (%) 142 134 S. PLATTE BLACK MOUNTAIN 8920 12.0 -M * -M -M * CROW CREEK 8330 7.1 6.9 103 11.0 9.1 121 DEADMAN HILL 10220 23.7 14.2 167 22.1 15.2 145 ----- ----- Basin Index (%) 146 136 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 13.2 11.3 117 15.7 13.7 115 DIVIDE PEAK 8880 18.1 18.0 101 20.9 19.4 108 ELK RIVER 8700 21.0 17.5 120 20.7 18.2 114 LITTLE SNAKE RIVER 8915 29.5 21.4 138 32.6 26.8 122 OLD BATTLE 10000 31.4 27.1 116 34.4 31.9 108 SAGE CREEK BASIN 7850 12.3 11.6 106 11.5 13.0 88 SANDSTONE RS 8150 11.4 12.7 90 16.7 16.9 99 WHISKEY PARK 8950 38.3 24.5 156 36.3 25.3 143 ----- ----- Basin Index (%) 122 114 UPPER GREEN RIVER BIG SANDY OPENING 9080 14.9 11.9 125 14.1 12.0 118 BLIND BULL SUM 8650 34.7 20.8 167 22.4 17.9 125 EAST RIM DIVIDE 7930 16.9 9.6 176 14.7 10.7 137 ELKHART PARK G.S. 9400 16.9 11.0 154 15.9 12.0 132 GROS VENTRE SUMMIT 8750 14.3 11.8 121 14.4 11.6 124 GUNSIGHT PASS 9820 19.7 12.3 160 17.9 12.2 147 KENDALL R.S. 7740 22.4 11.4 196 22.2 13.0 171 LOOMIS PARK 8240 24.0 13.7 175 23.4 15.7 149 NEW FORK LAKE 8340 15.5 9.5 163 13.2 9.8 135 POCKET CREEK 9360 12.3 -M * 12.1 -M * SNIDER BASIN 8060 19.6 11.2 175 18.7 12.9 145 SPRING CREEK DIVIDE 9000 33.8 21.6 156 31.2 21.8 143 TRIPLE PEAK 8500 33.9 20.0 170 35.3 23.1 153 ----- ----- Basin Index (%) 162 141 LOWER GREEN RIVER BLACKS FORK JCT 8870 8.0 -M * 12.2 -M * BUCK PASTURE 9700 14.0 -M * 15.2 -M * EF BLACKS FORK GS 9360 9.3 -M * 9.3 -M * HAMS FORK 7840 16.1 10.5 153 13.1 10.3 127 HEWINTA 9519 10.4 9.9 105 12.6 12.6 100 HICKERSON PARK 9145 8.1 6.8 119 8.0 9.1 88 HOLE-IN-ROCK 9150 6.0 6.8 88 8.3 8.5 98 INDIAN CREEK 9425 31.1 21.8 143 25.1 20.5 122 KELLEY R.S. 8180 18.1 13.8 131 19.8 16.5 120 SPIRIT LK 10235 9.2 -M * 12.1 -M * STEEL CREEK PARK 10200 17.1 13.7 125 14.8 14.6 101 ----- ----- Basin Index (%) 128 110 UPPER BEAR RIVER BEAR RIVER RS 8777 10.0 -M * 11.3 -M * BUG LAKE 7950 21.7 17.0 128 18.8 17.7 106 BURTS MILLER RANCH 8000 7.6 -M * 6.3 -M * CHALK CREEK #1 8993 -M 21.9 * -M 22.6 * HAYDEN FORK 9212 15.7 14.5 108 18.6 18.9 98 KELLEY R.S. 8180 18.1 13.8 131 19.8 16.5 120 LILY LAKE 9156 13.2 11.5 115 14.0 15.3 92 MONTE CRISTO 8960 25.6 24.9 103 23.2 23.5 99 SALT RIVER SUMMIT 7760 17.3 12.2 142 18.4 15.2 121 ----- ----- Basin Index (%) 119 105 ----------------------------------------------------------------------------- -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.