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 FRIDAY: MARCH 14 , 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 23.3 18.5 126 BLACK BEAR 8170 37.0 31.9 116 34.3 33.5 102 BLIND BULL SUM 8650 34.2 19.8 173 22.3 17.1 130 COTTONWOOD CREEK 7670 28.7 18.7 153 31.0 21.1 147 EAST RIM DIVIDE 7930 16.6 9.5 175 14.6 10.3 142 GRAND TARGHEE 9260 44.8 32.4 138 33.7 26.1 129 GRANITE CREEK 6770 -M 14.8 * -M 17.7 * GRASSY LAKE 7265 35.4 28.2 126 33.4 31.7 105 GROS VENTRE SUMMIT 8750 14.1 11.0 128 14.0 11.0 127 GUNSIGHT PASS 9820 19.1 11.7 163 17.5 11.8 148 LEWIS LAKE DIVIDE 7850 34.2 27.0 127 -M 31.2 * PHILLIPS BENCH 8200 31.8 21.6 147 -M 24.5 * SALT RIVER SUMMIT 7760 17.4 11.5 151 18.0 14.4 125 SNAKE RIVER STATION 6920 20.1 15.2 132 22.7 19.9 114 SPRING CREEK DIVIDE 9000 32.9 19.9 165 30.1 20.7 145 THUMB DIVIDE 7980 15.8 13.5 117 14.6 16.0 91 TOGWOTEE PASS 9580 29.3 19.8 148 -M 21.0 * TWO OCEAN PLATEAU 9240 35.8 23.4 153 -M 23.6 * WILLOW CREEK 8380 36.7 24.5 150 36.5 29.0 126 YOUNTS PEAK 8350 -M 12.7 * -M 13.6 * ----- ----- Basin Index (%) 143 123 MADISON-GALLATIN BLACK BEAR 8170 37.0 31.9 116 34.3 33.5 102 CANYON 7870 13.0 11.6 112 14.7 14.2 104 MADISON PLATEAU 7750 21.2 19.7 108 21.2 23.1 92 WEST YELLOWSTONE 6700 12.4 9.9 125 13.6 12.5 109 WHISKEY CREEK 6800 15.2 13.5 113 17.8 17.6 101 ----- ----- Basin Index (%) 114 101 YELLOWSTONE BEARTOOTH LAKE 9360 27.9 18.6 150 24.8 17.1 145 BURNT MTN 5880 8.7 4.4 198 15.9 10.4 153 CANYON 7870 13.0 11.6 112 14.7 14.2 104 COLE CREEK 7850 16.9 11.4 148 12.2 10.2 120 EVENING STAR 9200 34.8 21.4 163 -M 23.6 * FISHER CREEK 9100 39.1 27.5 142 34.4 27.6 125 NORTHEAST ENTRANCE 7350 13.8 8.7 159 13.7 10.6 129 PARKER PEAK 9400 27.1 17.0 159 21.6 15.2 142 SYLVAN LAKE 8420 21.3 17.3 123 24.1 19.3 125 THUMB DIVIDE 7980 15.8 13.5 117 14.6 16.0 91 TWO OCEAN PLATEAU 9240 35.8 23.4 153 -M 23.6 * WHITE MILL 8700 29.9 19.4 154 25.6 20.5 125 WOLVERINE 7650 14.6 8.9 164 14.8 10.6 140 ----- ----- Basin Index (%) 147 126 WIND RIVER BURROUGHS CREEK 8750 -M 11.8 * -M 13.7 * CASTLE CREEK 8400 10.2 -M * 11.7 -M * COLD SPRINGS 9630 9.9 6.1 162 12.0 8.2 146 DEER PARK 9700 -M 12.3 * 17.2 16.6 104 HOBBS PARK 10100 13.3 11.1 120 11.5 10.6 108 KIRWIN 9550 17.1 8.0 214 15.6 9.6 162 LITTLE WARM 9370 13.5 8.9 152 15.8 10.7 148 OWL CREEK 8975 6.3 4.4 143 6.3 4.7 134 SOUTH PASS 9040 15.0 12.8 117 13.9 14.7 95 ST. LAWRENCE ALT 8620 4.2 5.9 71 7.2 7.2 100 TOGWOTEE PASS 9580 29.3 19.8 148 -M 21.0 * TOWNSEND CREEK 8700 6.6 7.6 87 7.6 9.5 80 ----- ----- Basin Index (%) 136 117 BIGHORN BASIN BALD MTN. 9380 21.1 16.1 131 16.3 14.2 115 BEAR TRAP MEADOW 8200 9.2 4.8 192 9.2 6.7 137 BONE SPRINGS DIV 9350 17.8 13.5 132 14.0 12.8 109 GRAVE SPRINGS 8550 10.0 7.7 130 10.2 8.5 120 KIRWIN 9550 17.1 8.0 214 15.6 9.6 162 MARQUETTE 8760 11.1 -M * 10.6 -M * MIDDLE POWDER 7760 13.4 9.0 149 11.1 9.5 117 OWL CREEK 8975 6.3 4.4 143 6.3 4.7 134 POWDER RIVER PASS 9480 13.7 8.7 157 14.5 10.4 139 SHELL CREEK 9580 16.5 12.4 133 14.2 11.3 126 TIMBER CREEK 7950 5.8 4.1 141 7.2 5.8 124 ----- ----- Basin Index (%) 148 127 SHOSHONE RIVER BLACKWATER 9780 28.6 19.5 147 25.6 17.5 146 EVENING STAR 9200 34.8 21.4 163 -M 23.6 * MARQUETTE 8760 11.1 -M * 10.6 -M * SYLVAN ROAD 7120 14.6 10.1 145 18.8 14.7 128 YOUNTS PEAK 8350 -M 12.7 * -M 13.6 * ----- ----- Basin Index (%) 153 138* POWDER RIVER BEAR TRAP MEADOW 8200 9.2 4.8 192 9.2 6.7 137 CLOUD PEAK RESERVOIR 9860 16.8 12.1 139 14.7 10.6 139 GRAVE SPRINGS 8550 10.0 7.7 130 10.2 8.5 120 HANSEN SAWMILL 8360 8.3 5.3 157 10.5 6.7 157 MIDDLE POWDER 7760 13.4 9.0 149 11.1 9.5 117 POWDER RIVER PASS 9480 13.7 8.7 157 14.5 10.4 139 SOLDIER PARK 8720 10.7 -M * 9.5 -M * ----- ----- Basin Index (%) 150 134 TONGUE RIVER BIG GOOSE 7990 9.4 7.3 129 11.5 8.6 134 BONE SPRINGS DIV 9350 17.8 13.5 132 14.0 12.8 109 BURGESS JUNCTION 7880 12.1 9.4 129 12.9 9.9 130 DOME LAKE 8880 12.4 9.6 129 11.5 10.8 106 LITTLE GOOSE 8870 10.9 -M * 13.5 -M * SUCKER CREEK 8880 14.3 10.3 139 15.8 11.6 136 TIE CREEK 6870 7.0 4.7 149 12.1 9.2 132 ----- ----- Basin Index (%) 133 124 BELLE FOURCHE COLE CANYON 5910 6.6 5.3 125 12.4 7.6 163 ----- ----- Basin Index (%) 125 163 CHEYENNE RIVER BASIN BLIND PARK 6890 8.5 7.0 121 15.2 10.2 149 NORTH RAPID CREEK 6130 8.6 6.4 134 13.7 8.2 167 ----- ----- Basin Index (%) 128 157 UPPER N. PLATTE ARAPAHO RIDGE 10960 24.4 17.9 136 24.2 18.9 128 BLACKHALL MTN 9820 33.1 -M * 28.1 -M * COLUMBINE 9160 31.6 21.4 148 -M 22.1 * DIVIDE PEAK 8880 17.2 17.2 100 20.2 18.3 110 JOE WRIGHT 10120 18.6 18.7 99 28.3 21.8 130 LAPRELE CREEK 8375 7.5 8.8 85 9.1 10.3 88 MED BOW 10500 10.5 -M * 34.0 -M * NORTH FRENCH CREEK 10130 29.9 23.7 126 29.9 22.8 131 NEVER SUMMER 10280 21.9 17.3 127 16.8 -M * OLD BATTLE 10000 29.8 26.0 115 33.5 30.3 111 RAWAH 9020 13.0 9.2 141 15.3 11.6 132 SAGE CREEK BASIN 7850 11.4 11.8 97 11.1 12.6 88 SAND LAKE 10050 28.8 23.2 124 27.9 20.7 135 SOUTH BRUSH CREEK 8440 10.8 11.2 96 12.8 12.8 100 TOWER 10500 46.7 38.7 121 -M 34.4 * WEBBER SPRINGS 9250 23.4 20.4 115 25.5 23.0 111 WILLOW CREEK PASS 9540 13.2 10.4 127 13.4 11.2 120 ZIRKEL 9340 38.4 25.4 151 25.4 24.8 102 ----- ----- Basin Index (%) 122 116 SWEETWATER DEER PARK 9700 -M 12.3 * 17.2 16.6 104 LARSEN CREEK 9000 12.8 10.6 121 14.7 -M * SOUTH PASS 9040 15.0 12.8 117 13.9 14.7 95 ----- ----- Basin Index (%) 119 99 LOWER N. PLATTE CASPER MTN. 7900 15.1 11.7 129 13.5 12.2 111 LAPRELE CREEK 8375 7.5 8.8 85 9.1 10.3 88 RENO HILL 8400 14.7 11.4 129 16.8 12.3 137 WINDY PEAK 7900 7.4 6.7 110 9.9 8.7 114 ----- ----- Basin Index (%) 116 113 LARAMIE RIVER BROOKLYN LAKE 10240 27.7 17.2 161 26.5 17.7 150 CINNABAR PARK 9574 21.3 17.8 120 20.5 20.8 99 CROW CREEK 8330 6.4 7.1 90 10.2 8.5 120 DEADMAN HILL 10220 21.9 13.3 165 20.2 14.3 141 RAWAH 9020 13.0 9.2 141 15.3 11.6 132 ROACH 9700 18.9 13.5 140 21.9 16.2 135 ----- ----- Basin Index (%) 140 129 S. PLATTE BLACK MOUNTAIN 8920 10.9 -M * 11.1 -M * CROW CREEK 8330 6.4 7.1 90 10.2 8.5 120 DEADMAN HILL 10220 21.9 13.3 165 20.2 14.3 141 ----- ----- Basin Index (%) 139 133 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 11.6 10.8 107 15.3 13.1 117 DIVIDE PEAK 8880 17.2 17.2 100 20.2 18.3 110 ELK RIVER 8700 20.0 17.1 117 20.0 17.3 116 LITTLE SNAKE RIVER 8915 27.9 20.5 136 31.7 26.1 121 OLD BATTLE 10000 29.8 26.0 115 33.5 30.3 111 SAGE CREEK BASIN 7850 11.4 11.8 97 11.1 12.6 88 SANDSTONE RS 8150 10.9 11.6 94 16.1 16.2 99 WHISKEY PARK 8950 36.1 23.7 152 35.1 24.2 145 ----- ----- Basin Index (%) 119 116 UPPER GREEN RIVER BIG SANDY OPENING 9080 14.6 11.0 133 13.9 11.4 122 BLIND BULL SUM 8650 34.2 19.8 173 22.3 17.1 130 EAST RIM DIVIDE 7930 16.6 9.5 175 14.6 10.3 142 ELKHART PARK G.S. 9400 16.6 10.3 161 15.8 11.4 139 GROS VENTRE SUMMIT 8750 14.1 11.0 128 14.0 11.0 127 GUNSIGHT PASS 9820 19.1 11.7 163 17.5 11.8 148 KENDALL R.S. 7740 21.8 10.8 202 -M 12.6 * LOOMIS PARK 8240 23.4 12.9 181 23.4 15.1 155 NEW FORK LAKE 8340 15.4 9.1 169 13.1 9.4 139 POCKET CREEK 9360 12.2 -M * 12.1 -M * SNIDER BASIN 8060 18.8 10.7 176 18.3 12.4 148 SPRING CREEK DIVIDE 9000 32.9 19.9 165 30.1 20.7 145 TRIPLE PEAK 8500 33.0 18.9 175 34.3 21.9 157 ----- ----- Basin Index (%) 167 142 LOWER GREEN RIVER BLACKS FORK JCT 8870 7.8 -M * 11.8 -M * BUCK PASTURE 9700 13.1 -M * 14.8 -M * EF BLACKS FORK GS 9360 9.0 -M * 9.1 -M * HAMS FORK 7840 15.0 10.0 150 13.0 9.7 134 HEWINTA 9519 9.8 8.9 110 12.3 11.8 104 HICKERSON PARK 9145 7.0 6.6 106 7.8 8.4 93 HOLE-IN-ROCK 9150 6.0 6.2 97 7.9 7.8 101 INDIAN CREEK 9425 29.9 20.6 145 24.7 19.3 128 KELLEY R.S. 8180 17.8 12.9 138 19.5 15.6 125 SPIRIT LK 10235 8.9 -M * 11.5 -M * STEEL CREEK PARK 10200 16.6 12.9 129 14.5 13.6 107 ----- ----- Basin Index (%) 131 116 UPPER BEAR RIVER BEAR RIVER RS 8777 10.0 -M * 11.0 -M * BUG LAKE 7950 21.1 16.4 129 18.5 16.8 110 BURTS MILLER RANCH 8000 7.0 -M * 6.4 -M * CHALK CREEK #1 8993 20.3 20.4 100 20.2 21.3 95 HAYDEN FORK 9212 15.0 13.9 108 18.2 17.8 102 KELLEY R.S. 8180 17.8 12.9 138 19.5 15.6 125 LILY LAKE 9156 12.4 11.3 110 13.7 14.5 94 MONTE CRISTO 8960 24.7 23.3 106 22.7 22.3 102 SALT RIVER SUMMIT 7760 17.4 11.5 151 18.0 14.4 125 ----- ----- Basin Index (%) 117 107 ----------------------------------------------------------------------------- -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.