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: APRIL 13 , 2014 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 22.7 14.0 162 26.8 21.2 126 BLACK BEAR 8170 42.0 36.6 115 40.7 38.7 105 BLIND BULL SUM 8650 36.7 23.7 155 23.5 19.7 119 COTTONWOOD CREEK 7670 30.8 20.3 152 34.9 25.0 140 EAST RIM DIVIDE 7930 15.8 10.1 156 15.5 11.9 130 GRAND TARGHEE 9260 51.0 40.4 126 -M 31.4 * GRANITE CREEK 6770 23.1 13.0 178 24.3 19.8 123 GRASSY LAKE 7265 -M 31.4 * -M 36.4 * GROS VENTRE SUMMIT 8750 -M 12.9 * -M 13.2 * GUNSIGHT PASS 9820 21.2 13.6 156 19.1 14.1 135 LEWIS LAKE DIVIDE 7850 40.1 30.2 133 -M 35.8 * PHILLIPS BENCH 8200 34.7 26.0 133 34.7 28.4 122 SALT RIVER SUMMIT 7760 -M 11.8 * -M 16.9 * SNAKE RIVER STATION 6920 -M 13.6 * -M 22.7 * SPRING CREEK DIVIDE 9000 36.3 23.0 158 33.2 24.1 138 THUMB DIVIDE 7980 20.0 14.6 137 19.3 18.9 102 TOGWOTEE PASS 9580 31.4 22.8 138 33.4 24.7 135 TWO OCEAN PLATEAU 9240 41.3 26.9 154 -M 27.6 * WILLOW CREEK 8380 40.3 27.2 148 41.9 34.2 123 YOUNTS PEAK 8350 -M 14.6 * -M 16.0 * ----- ----- Basin Index (%) 142 124 MADISON-GALLATIN BLACK BEAR 8170 42.0 36.6 115 40.7 38.7 105 CANYON 7870 15.4 12.3 125 17.0 16.5 103 MADISON PLATEAU 7750 25.2 22.3 113 25.3 26.6 95 WEST YELLOWSTONE 6700 11.9 8.5 140 16.2 14.3 113 WHISKEY CREEK 6800 17.3 14.6 118 21.1 20.5 103 ----- ----- Basin Index (%) 119 103 YELLOWSTONE BEARTOOTH LAKE 9360 32.2 22.0 146 30.4 20.1 151 BURNT MTN 5880 10.6 1.7 624 20.8 13.3 156 CANYON 7870 15.4 12.3 125 17.0 16.5 103 COLE CREEK 7850 24.7 15.4 160 17.9 13.7 131 EVENING STAR 9200 39.7 24.4 163 41.0 27.8 147 FISHER CREEK 9100 44.2 31.7 139 40.3 32.2 125 NORTHEAST ENTRANCE 7350 14.6 8.4 174 15.9 12.5 127 PARKER PEAK 9400 33.2 20.2 164 29.7 18.0 165 SYLVAN LAKE 8420 23.9 19.8 121 29.4 22.7 130 THUMB DIVIDE 7980 20.0 14.6 137 19.3 18.9 102 TWO OCEAN PLATEAU 9240 41.3 26.9 154 -M 27.6 * WHITE MILL 8700 34.1 23.3 146 29.4 24.1 122 WOLVERINE 7650 -M 9.1 * 17.3 12.4 140 ----- ----- Basin Index (%) 151 133 WIND RIVER BURROUGHS CREEK 8750 -M 12.9 * -M 16.1 * CASTLE CREEK 8400 9.2 -M * 12.4 -M * COLD SPRINGS 9630 9.6 6.0 160 13.1 10.3 127 DEER PARK 9700 -M 16.2 * 19.8 20.5 97 HOBBS PARK 10100 15.6 14.9 105 14.2 14.1 101 KIRWIN 9550 19.7 9.9 199 18.4 11.9 155 LITTLE WARM 9370 14.4 10.3 140 17.4 13.2 132 OWL CREEK 8975 7.6 5.4 141 8.3 6.3 132 SOUTH PASS 9040 15.0 15.8 95 15.5 17.9 87 ST. LAWRENCE ALT 8620 3.8 6.7 57 8.8 9.3 95 TOGWOTEE PASS 9580 31.4 22.8 138 33.4 24.7 135 TOWNSEND CREEK 8700 7.8 10.0 78 10.0 12.7 79 ----- ----- Basin Index (%) 123 113 BIGHORN BASIN BALD MTN. 9380 27.1 19.3 140 21.1 17.5 121 BEAR TRAP MEADOW 8200 10.8 4.6 235 11.9 8.9 134 BONE SPRINGS DIV 9350 23.2 17.0 136 18.0 16.0 112 GRAVE SPRINGS 8550 12.8 9.6 133 13.3 11.0 121 KIRWIN 9550 19.7 9.9 199 18.4 11.9 155 MARQUETTE 8760 15.6 -M * 13.8 -M * MIDDLE POWDER 7760 18.2 12.4 147 14.9 12.2 122 OWL CREEK 8975 7.6 5.4 141 8.3 6.3 132 POWDER RIVER PASS 9480 16.1 10.3 156 17.5 13.0 135 SHELL CREEK 9580 20.7 15.6 133 17.8 14.2 125 TIMBER CREEK 7950 7.0 5.2 135 10.0 7.7 130 ----- ----- Basin Index (%) 149 127 SHOSHONE RIVER BLACKWATER 9780 33.5 23.5 143 30.4 21.0 145 EVENING STAR 9200 39.7 24.4 163 41.0 27.8 147 MARQUETTE 8760 15.6 -M * 13.8 -M * SYLVAN ROAD 7120 13.2 10.4 127 22.2 16.9 131 YOUNTS PEAK 8350 -M 14.6 * -M 16.0 * ----- ----- Basin Index (%) 148 142 POWDER RIVER BEAR TRAP MEADOW 8200 10.8 4.6 235 11.9 8.9 134 CLOUD PEAK RESERVOIR 9860 22.0 15.3 144 19.5 14.0 139 GRAVE SPRINGS 8550 12.8 9.6 133 13.3 11.0 121 HANSEN SAWMILL 8360 10.5 6.1 172 13.2 9.0 147 MIDDLE POWDER 7760 18.2 12.4 147 14.9 12.2 122 POWDER RIVER PASS 9480 16.1 10.3 156 17.5 13.0 135 SOLDIER PARK 8720 13.9 -M * 12.9 -M * ----- ----- Basin Index (%) 155 133 TONGUE RIVER BIG GOOSE 7990 13.1 9.9 132 15.9 12.0 132 BONE SPRINGS DIV 9350 23.2 17.0 136 18.0 16.0 112 BURGESS JUNCTION 7880 17.1 12.2 140 17.0 12.9 132 DOME LAKE 8880 17.2 12.0 143 16.2 14.2 114 LITTLE GOOSE 8870 -M -M * -M -M * SUCKER CREEK 8880 19.1 12.6 152 20.6 15.0 137 TIE CREEK 6870 9.3 5.1 182 16.2 12.1 134 ----- ----- Basin Index (%) 144 126 BELLE FOURCHE COLE CANYON 5910 7.4 3.8 195 14.4 9.9 145 ----- ----- Basin Index (%) 195 145 CHEYENNE RIVER BASIN BLIND PARK 6890 8.0 5.8 138 17.0 12.4 137 NORTH RAPID CREEK 6130 7.6 5.9 129 15.5 10.3 150 ----- ----- Basin Index (%) 133 143 UPPER N. PLATTE ARAPAHO RIDGE 10960 29.4 21.5 137 28.3 23.6 120 BLACKHALL MTN 9820 39.3 -M * -M -M * COLUMBINE 9160 36.3 22.6 161 -M 26.2 * DIVIDE PEAK 8880 20.6 20.3 101 24.2 22.0 110 JOE WRIGHT 10120 24.7 22.0 112 32.7 26.7 122 LAPRELE CREEK 8375 9.0 9.3 97 11.9 13.0 92 MED BOW 10500 -M -M * 37.5 -M * NORTH FRENCH CREEK 10130 38.6 31.2 124 36.4 27.5 132 NEVER SUMMER 10280 25.7 20.5 125 20.2 -M * OLD BATTLE 10000 36.0 32.1 112 38.6 35.8 108 RAWAH 9020 12.7 10.0 127 18.2 15.0 121 SAGE CREEK BASIN 7850 11.3 9.9 114 13.5 15.0 90 SAND LAKE 10050 35.4 30.1 118 34.1 25.6 133 SOUTH BRUSH CREEK 8440 12.2 11.3 108 16.1 15.8 102 TOWER 10500 -M 47.2 * -M 40.8 * WEBBER SPRINGS 9250 26.9 23.4 115 29.7 27.4 108 WILLOW CREEK PASS 9540 15.6 12.6 124 15.3 13.9 110 ZIRKEL 9340 41.7 24.7 169 -M 29.1 * ----- ----- Basin Index (%) 125 114 SWEETWATER DEER PARK 9700 -M 16.2 * 19.8 20.5 97 LARSEN CREEK 9000 12.1 11.0 110 16.1 -M * SOUTH PASS 9040 15.0 15.8 95 15.5 17.9 87 ----- ----- Basin Index (%) 101 92 LOWER N. PLATTE CASPER MTN. 7900 18.6 14.5 128 16.5 15.7 105 LAPRELE CREEK 8375 9.0 9.3 97 11.9 13.0 92 RENO HILL 8400 19.4 14.2 137 21.5 16.2 133 WINDY PEAK 7900 8.9 7.5 119 12.9 11.0 117 ----- ----- Basin Index (%) 123 112 LARAMIE RIVER BROOKLYN LAKE 10240 32.2 22.3 144 31.5 21.8 144 CINNABAR PARK 9574 25.3 21.3 119 30.5 24.8 123 CROW CREEK 8330 6.0 5.5 109 12.1 11.4 106 DEADMAN HILL 10220 25.3 16.6 152 24.6 18.0 137 RAWAH 9020 12.7 10.0 127 18.2 15.0 121 ROACH 9700 21.9 16.5 133 25.3 19.9 127 ----- ----- Basin Index (%) 134 128 S. PLATTE BLACK MOUNTAIN 8920 11.8 -M * -M -M * CROW CREEK 8330 6.0 5.5 109 12.1 11.4 106 DEADMAN HILL 10220 25.3 16.6 152 24.6 18.0 137 ----- ----- Basin Index (%) 142 125 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 9.1 7.7 118 18.6 15.4 121 DIVIDE PEAK 8880 20.6 20.3 101 24.2 22.0 110 ELK RIVER 8700 21.0 17.8 118 23.5 20.6 114 LITTLE SNAKE RIVER 8915 31.4 26.0 121 36.2 30.7 118 OLD BATTLE 10000 36.0 32.1 112 38.6 35.8 108 SAGE CREEK BASIN 7850 11.3 9.9 114 13.5 15.0 90 SANDSTONE RS 8150 11.4 12.4 92 19.2 18.8 102 WHISKEY PARK 8950 42.2 27.5 153 41.6 28.5 146 ----- ----- Basin Index (%) 119 115 UPPER GREEN RIVER BIG SANDY OPENING 9080 15.0 12.9 116 15.1 13.6 111 BLIND BULL SUM 8650 36.7 23.7 155 23.5 19.7 119 EAST RIM DIVIDE 7930 15.8 10.1 156 15.5 11.9 130 ELKHART PARK G.S. 9400 17.6 12.2 144 16.8 13.6 124 GROS VENTRE SUMMIT 8750 -M 12.9 * -M 13.2 * GUNSIGHT PASS 9820 21.2 13.6 156 19.1 14.1 135 KENDALL R.S. 7740 21.2 10.4 204 23.0 14.3 161 LOOMIS PARK 8240 24.7 13.7 180 24.9 17.5 142 NEW FORK LAKE 8340 15.5 9.8 158 13.6 10.9 125 POCKET CREEK 9360 12.0 -M * 12.7 -M * SNIDER BASIN 8060 -M 12.0 * -M 14.4 * SPRING CREEK DIVIDE 9000 36.3 23.0 158 33.2 24.1 138 TRIPLE PEAK 8500 33.4 20.3 165 37.5 25.6 146 ----- ----- Basin Index (%) 159 134 LOWER GREEN RIVER BLACKS FORK JCT 8870 -M -M * -M -M * BUCK PASTURE 9700 -M -M * -M -M * EF BLACKS FORK GS 9360 -M -M * -M -M * HAMS FORK 7840 14.0 9.2 152 13.9 11.6 120 HEWINTA 9519 10.5 10.3 102 14.8 14.5 102 HICKERSON PARK 9145 6.3 7.2 88 9.3 10.6 88 HOLE-IN-ROCK 9150 -M 7.1 * -M 10.1 * INDIAN CREEK 9425 -M 24.3 * -M 22.9 * KELLEY R.S. 8180 18.4 14.0 131 21.3 18.4 116 SPIRIT LK 10235 -M -M * -M -M * STEEL CREEK PARK 10200 20.4 16.1 127 17.0 17.1 99 ----- ----- Basin Index (%) 123* 106* UPPER BEAR RIVER BEAR RIVER RS 8777 -M -M * -M -M * BUG LAKE 7950 -M 19.2 * -M 19.8 * BURTS MILLER RANCH 8000 -M -M * -M -M * CHALK CREEK #1 8993 -M 24.8 * -M 25.9 * HAYDEN FORK 9212 -M 14.4 * -M 21.6 * KELLEY R.S. 8180 18.4 14.0 131 21.3 18.4 116 LILY LAKE 9156 13.2 12.7 104 15.5 17.7 88 MONTE CRISTO 8960 27.0 27.8 97 26.3 26.5 99 SALT RIVER SUMMIT 7760 -M 11.8 * -M 16.9 * ----- ----- Basin Index (%) 108* 101* ----------------------------------------------------------------------------- -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.