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 7 , 2014 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 21.7 13.7 158 21.9 17.9 122 BLACK BEAR 8170 35.0 30.7 114 32.7 32.3 101 BLIND BULL SUM 8650 33.3 18.9 176 21.9 16.6 132 COTTONWOOD CREEK 7670 27.9 18.1 154 29.9 20.3 147 EAST RIM DIVIDE 7930 16.5 9.0 183 14.6 10.0 146 GRAND TARGHEE 9260 42.6 31.2 137 32.1 25.3 127 GRANITE CREEK 6770 -M 14.3 * -M 17.2 * GRASSY LAKE 7265 34.2 27.1 126 32.8 30.6 107 GROS VENTRE SUMMIT 8750 14.2 10.6 134 14.0 10.6 132 GUNSIGHT PASS 9820 18.7 11.2 167 17.3 11.3 153 LEWIS LAKE DIVIDE 7850 32.8 25.8 127 30.9 30.1 103 PHILLIPS BENCH 8200 31.1 20.6 151 27.6 23.7 116 SALT RIVER SUMMIT 7760 16.9 10.9 155 17.6 14.0 126 SNAKE RIVER STATION 6920 19.1 14.8 129 21.3 19.4 110 SPRING CREEK DIVIDE 9000 32.3 19.4 166 28.4 20.0 142 THUMB DIVIDE 7980 15.0 12.7 118 14.0 15.4 91 TOGWOTEE PASS 9580 28.7 19.0 151 24.9 20.2 123 TWO OCEAN PLATEAU 9240 34.3 22.3 154 -M 22.7 * WILLOW CREEK 8380 35.0 23.6 148 -M 27.8 * YOUNTS PEAK 8350 -M 12.1 * -M 13.1 * ----- ----- Basin Index (%) 144 120 MADISON-GALLATIN BLACK BEAR 8170 35.0 30.7 114 32.7 32.3 101 CANYON 7870 12.3 11.2 110 14.2 13.6 104 MADISON PLATEAU 7750 19.9 18.6 107 19.9 22.2 90 WEST YELLOWSTONE 6700 11.5 9.3 124 12.9 12.1 107 WHISKEY CREEK 6800 14.6 12.6 116 16.9 17.0 99 ----- ----- Basin Index (%) 113 99 YELLOWSTONE BEARTOOTH LAKE 9360 26.9 17.8 151 24.5 16.4 149 BURNT MTN 5880 8.1 4.3 188 15.0 9.8 153 CANYON 7870 12.3 11.2 110 14.2 13.6 104 COLE CREEK 7850 15.2 10.8 141 11.1 9.5 117 EVENING STAR 9200 33.9 20.3 167 33.2 22.9 145 FISHER CREEK 9100 37.5 26.5 142 32.9 26.5 124 NORTHEAST ENTRANCE 7350 13.4 8.6 156 13.3 10.3 129 PARKER PEAK 9400 26.3 16.4 160 21.4 14.6 147 SYLVAN LAKE 8420 20.5 16.6 123 23.2 18.6 125 THUMB DIVIDE 7980 15.0 12.7 118 14.0 15.4 91 TWO OCEAN PLATEAU 9240 34.3 22.3 154 -M 22.7 * WHITE MILL 8700 29.0 18.8 154 24.9 19.8 126 WOLVERINE 7650 15.6 8.9 175 14.7 10.3 143 ----- ----- Basin Index (%) 148 129 WIND RIVER BURROUGHS CREEK 8750 -M 11.2 * -M 13.2 * CASTLE CREEK 8400 10.3 -M * 11.9 -M * COLD SPRINGS 9630 9.8 5.7 172 12.0 7.8 154 DEER PARK 9700 14.0 11.4 123 16.0 15.9 101 HOBBS PARK 10100 12.3 10.6 116 10.7 10.1 106 KIRWIN 9550 16.8 7.5 224 15.3 9.1 168 LITTLE WARM 9370 13.5 8.4 161 15.6 10.3 151 OWL CREEK 8975 6.1 4.2 145 6.2 4.5 138 SOUTH PASS 9040 14.2 12.2 116 13.1 14.2 92 ST. LAWRENCE ALT 8620 4.3 5.7 75 7.5 6.8 110 TOGWOTEE PASS 9580 28.7 19.0 151 24.9 20.2 123 TOWNSEND CREEK 8700 5.9 7.2 82 6.7 9.1 74 ----- ----- Basin Index (%) 137 119 BIGHORN BASIN BALD MTN. 9380 20.5 15.6 131 15.8 13.6 116 BEAR TRAP MEADOW 8200 8.6 4.6 187 8.7 6.4 136 BONE SPRINGS DIV 9350 17.6 13.0 135 13.8 12.3 112 GRAVE SPRINGS 8550 9.3 7.2 129 9.6 8.2 117 KIRWIN 9550 16.8 7.5 224 15.3 9.1 168 MARQUETTE 8760 10.3 -M * 10.3 -M * MIDDLE POWDER 7760 12.6 8.5 148 10.4 9.1 114 OWL CREEK 8975 6.1 4.2 145 6.2 4.5 138 POWDER RIVER PASS 9480 13.1 8.2 160 13.8 10.0 138 SHELL CREEK 9580 16.0 12.1 132 13.6 11.0 124 TIMBER CREEK 7950 5.3 4.0 132 7.0 5.4 130 ----- ----- Basin Index (%) 148 127 SHOSHONE RIVER BLACKWATER 9780 28.1 18.4 153 24.9 16.8 148 EVENING STAR 9200 33.9 20.3 167 33.2 22.9 145 MARQUETTE 8760 10.3 -M * 10.3 -M * SYLVAN ROAD 7120 14.2 9.9 143 18.5 14.4 128 YOUNTS PEAK 8350 -M 12.1 * -M 13.1 * ----- ----- Basin Index (%) 157 142 POWDER RIVER BEAR TRAP MEADOW 8200 8.6 4.6 187 8.7 6.4 136 CLOUD PEAK RESERVOIR 9860 16.0 11.2 143 13.9 10.0 139 GRAVE SPRINGS 8550 9.3 7.2 129 9.6 8.2 117 HANSEN SAWMILL 8360 7.8 4.9 159 10.0 6.4 156 MIDDLE POWDER 7760 12.6 8.5 148 10.4 9.1 114 POWDER RIVER PASS 9480 13.1 8.2 160 13.8 10.0 138 SOLDIER PARK 8720 10.2 -M * 9.0 -M * ----- ----- Basin Index (%) 151 133 TONGUE RIVER BIG GOOSE 7990 8.6 6.5 132 10.6 8.2 129 BONE SPRINGS DIV 9350 17.6 13.0 135 13.8 12.3 112 BURGESS JUNCTION 7880 11.4 8.9 128 12.5 9.4 133 DOME LAKE 8880 11.5 9.1 126 10.6 10.4 102 LITTLE GOOSE 8870 9.7 -M * 12.4 -M * SUCKER CREEK 8880 13.4 9.7 138 14.9 11.0 135 TIE CREEK 6870 6.5 4.6 141 11.5 8.8 131 ----- ----- Basin Index (%) 133 123 BELLE FOURCHE COLE CANYON 5910 5.7 4.9 116 12.4 7.3 170 ----- ----- Basin Index (%) 116 170 CHEYENNE RIVER BASIN BLIND PARK 6890 8.2 6.6 124 15.0 9.8 153 NORTH RAPID CREEK 6130 8.3 6.1 136 13.9 7.9 176 ----- ----- Basin Index (%) 130 163 UPPER N. PLATTE ARAPAHO RIDGE 10960 23.5 17.3 136 22.9 18.3 125 BLACKHALL MTN 9820 31.9 -M * 27.3 -M * COLUMBINE 9160 30.8 20.7 149 -M 21.1 * DIVIDE PEAK 8880 15.9 16.6 96 19.3 17.5 110 JOE WRIGHT 10120 17.4 17.8 98 27.0 20.9 129 LAPRELE CREEK 8375 7.2 8.0 90 8.4 9.8 86 MED BOW 10500 13.7 -M * 28.4 -M * NORTH FRENCH CREEK 10130 -M 21.8 * -M 21.8 * NEVER SUMMER 10280 21.1 16.6 127 16.3 -M * OLD BATTLE 10000 28.8 24.9 116 32.3 29.0 111 RAWAH 9020 11.7 9.0 130 14.5 11.3 128 SAGE CREEK BASIN 7850 9.8 11.0 89 10.8 12.1 89 SAND LAKE 10050 27.4 21.8 126 26.5 19.8 134 SOUTH BRUSH CREEK 8440 10.3 10.9 94 12.5 12.2 102 TOWER 10500 45.7 37.6 122 -M 33.1 * WEBBER SPRINGS 9250 22.3 19.6 114 24.5 22.0 111 WILLOW CREEK PASS 9540 12.1 10.0 121 12.7 10.8 118 ZIRKEL 9340 37.7 24.5 154 24.3 23.8 102 ----- ----- Basin Index (%) 121 114 SWEETWATER DEER PARK 9700 14.0 11.4 123 16.0 15.9 101 LARSEN CREEK 9000 12.4 10.0 124 14.3 -M * SOUTH PASS 9040 14.2 12.2 116 13.1 14.2 92 ----- ----- Basin Index (%) 121 97 LOWER N. PLATTE CASPER MTN. 7900 -M 11.1 * -M 11.6 * LAPRELE CREEK 8375 7.2 8.0 90 8.4 9.8 86 RENO HILL 8400 13.1 10.9 120 15.4 11.7 132 WINDY PEAK 7900 6.7 6.2 108 9.2 8.2 112 ----- ----- Basin Index (%) 108 111 LARAMIE RIVER BROOKLYN LAKE 10240 27.0 16.1 168 26.2 16.8 156 CINNABAR PARK 9574 20.3 17.6 115 20.4 20.2 101 CROW CREEK 8330 6.4 7.0 91 9.9 8.2 121 DEADMAN HILL 10220 20.8 12.7 164 19.6 13.5 145 RAWAH 9020 11.7 9.0 130 14.5 11.3 128 ROACH 9700 -M 12.9 * -M 15.4 * ----- ----- Basin Index (%) 138 129 S. PLATTE BLACK MOUNTAIN 8920 10.2 -M * 11.4 -M * CROW CREEK 8330 6.4 7.0 91 9.9 8.2 121 DEADMAN HILL 10220 20.8 12.7 164 19.6 13.5 145 ----- ----- Basin Index (%) 138 136 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 10.1 10.2 99 15.1 12.6 120 DIVIDE PEAK 8880 15.9 16.6 96 19.3 17.5 110 ELK RIVER 8700 19.2 16.5 116 19.6 16.6 118 LITTLE SNAKE RIVER 8915 26.6 20.1 132 30.5 25.4 120 OLD BATTLE 10000 28.8 24.9 116 32.3 29.0 111 SAGE CREEK BASIN 7850 9.8 11.0 89 10.8 12.1 89 SANDSTONE RS 8150 10.7 11.5 93 15.6 15.6 100 WHISKEY PARK 8950 34.6 22.6 153 34.3 23.2 148 ----- ----- Basin Index (%) 117 117 UPPER GREEN RIVER BIG SANDY OPENING 9080 14.8 10.5 141 13.8 10.9 127 BLIND BULL SUM 8650 33.3 18.9 176 21.9 16.6 132 EAST RIM DIVIDE 7930 16.5 9.0 183 14.6 10.0 146 ELKHART PARK G.S. 9400 16.6 9.8 169 15.5 10.9 142 GROS VENTRE SUMMIT 8750 14.2 10.6 134 14.0 10.6 132 GUNSIGHT PASS 9820 18.7 11.2 167 17.3 11.3 153 KENDALL R.S. 7740 21.6 10.3 210 -M 12.2 * LOOMIS PARK 8240 22.9 12.4 185 22.2 14.6 152 NEW FORK LAKE 8340 15.4 8.7 177 12.9 9.1 142 POCKET CREEK 9360 12.3 -M * 12.0 -M * SNIDER BASIN 8060 18.6 10.4 179 18.1 12.0 151 SPRING CREEK DIVIDE 9000 32.3 19.4 166 28.4 20.0 142 TRIPLE PEAK 8500 32.3 18.0 179 33.6 21.1 159 ----- ----- Basin Index (%) 172 144 LOWER GREEN RIVER BLACKS FORK JCT 8870 7.3 -M * 11.3 -M * BUCK PASTURE 9700 12.2 -M * 13.6 -M * EF BLACKS FORK GS 9360 8.4 -M * 8.6 -M * HAMS FORK 7840 14.6 9.8 149 12.7 9.5 134 HEWINTA 9519 9.1 8.4 108 11.8 11.3 104 HICKERSON PARK 9145 6.4 6.2 103 7.7 8.0 96 HOLE-IN-ROCK 9150 5.8 5.9 98 7.7 7.4 104 INDIAN CREEK 9425 29.1 19.7 148 24.4 18.6 131 KELLEY R.S. 8180 17.3 12.4 140 19.0 15.1 126 SPIRIT LK 10235 7.7 -M * 11.1 -M * STEEL CREEK PARK 10200 15.5 12.2 127 13.5 13.0 104 ----- ----- Basin Index (%) 131 117 UPPER BEAR RIVER BEAR RIVER RS 8777 8.4 -M * 10.5 -M * BUG LAKE 7950 20.5 15.6 131 17.9 16.1 111 BURTS MILLER RANCH 8000 6.4 -M * 6.1 -M * CHALK CREEK #1 8993 19.4 19.2 101 19.4 20.4 95 HAYDEN FORK 9212 13.5 12.6 107 17.5 17.1 102 KELLEY R.S. 8180 17.3 12.4 140 19.0 15.1 126 LILY LAKE 9156 11.9 10.7 111 13.0 13.8 94 MONTE CRISTO 8960 23.9 22.3 107 21.9 21.3 103 SALT RIVER SUMMIT 7760 16.9 10.9 155 17.6 14.0 126 ----- ----- Basin Index (%) 119 107 ----------------------------------------------------------------------------- -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.