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 2 , 2014 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 19.0 13.6 140 20.0 17.4 115 BLACK BEAR 8170 30.2 29.7 102 28.4 31.0 92 BLIND BULL SUM 8650 30.5 18.0 169 20.1 16.0 126 COTTONWOOD CREEK 7670 26.5 17.1 155 28.3 19.7 144 EAST RIM DIVIDE 7930 14.9 8.2 182 13.3 9.6 139 GRAND TARGHEE 9260 40.1 30.3 132 29.8 25.0 119 GRANITE CREEK 6770 19.7 13.8 143 19.9 16.6 120 GRASSY LAKE 7265 30.9 26.3 117 30.7 29.6 104 GROS VENTRE SUMMIT 8750 13.3 9.8 136 12.7 10.2 125 GUNSIGHT PASS 9820 17.1 10.6 161 15.9 11.0 145 LEWIS LAKE DIVIDE 7850 28.9 25.2 115 30.1 29.0 104 PHILLIPS BENCH 8200 28.3 19.8 143 27.1 22.9 118 SALT RIVER SUMMIT 7760 16.1 10.7 150 17.0 13.5 126 SNAKE RIVER STATION 6920 17.5 14.3 122 20.3 18.7 109 SPRING CREEK DIVIDE 9000 30.9 18.7 165 28.1 19.3 146 THUMB DIVIDE 7980 13.0 12.3 106 12.4 14.7 84 TOGWOTEE PASS 9580 27.0 17.9 151 24.6 19.5 126 TWO OCEAN PLATEAU 9240 31.6 21.6 146 20.6 21.8 94 WILLOW CREEK 8380 33.0 22.4 147 31.3 27.0 116 YOUNTS PEAK 8350 -M 11.7 * -M 12.7 * ----- ----- Basin Index (%) 138 116 MADISON-GALLATIN BLACK BEAR 8170 30.2 29.7 102 28.4 31.0 92 CANYON 7870 11.6 10.6 109 13.2 13.1 101 MADISON PLATEAU 7750 17.2 17.9 96 17.5 21.3 82 WEST YELLOWSTONE 6700 10.2 9.0 113 11.5 11.7 98 WHISKEY CREEK 6800 12.7 12.1 105 14.9 16.3 91 ----- ----- Basin Index (%) 103 92 YELLOWSTONE BEARTOOTH LAKE 9360 24.2 16.9 143 22.5 15.8 142 BURNT MTN 5880 8.1 4.0 202 -M 9.6 * CANYON 7870 11.6 10.6 109 13.2 13.1 101 COLE CREEK 7850 14.9 10.1 148 10.8 9.1 119 EVENING STAR 9200 31.6 19.2 165 -M 22.2 * FISHER CREEK 9100 33.9 25.9 131 29.4 25.7 114 NORTHEAST ENTRANCE 7350 12.4 8.3 149 12.3 9.9 124 PARKER PEAK 9400 24.5 16.1 152 20.7 14.1 147 SYLVAN LAKE 8420 19.2 15.9 121 21.7 18.0 121 THUMB DIVIDE 7980 13.0 12.3 106 12.4 14.7 84 TWO OCEAN PLATEAU 9240 31.6 21.6 146 20.6 21.8 94 WHITE MILL 8700 26.2 18.4 142 22.4 19.1 117 WOLVERINE 7650 15.3 8.5 180 13.6 10.0 136 ----- ----- Basin Index (%) 142 117 WIND RIVER BURROUGHS CREEK 8750 -M 10.8 * -M 12.8 * CASTLE CREEK 8400 9.9 -M * 11.3 -M * COLD SPRINGS 9630 9.7 5.5 176 11.8 7.5 157 DEER PARK 9700 -M 10.8 * 15.5 15.4 101 HOBBS PARK 10100 11.9 9.8 121 10.3 9.5 108 KIRWIN 9550 16.0 7.0 229 -M 8.8 * LITTLE WARM 9370 12.7 8.0 159 14.8 9.9 149 OWL CREEK 8975 6.0 3.9 154 6.0 4.3 140 SOUTH PASS 9040 13.7 11.5 119 12.7 13.5 94 ST. LAWRENCE ALT 8620 3.7 5.2 71 6.7 6.6 102 TOGWOTEE PASS 9580 27.0 17.9 151 24.6 19.5 126 TOWNSEND CREEK 8700 5.8 6.6 88 6.4 8.7 74 ----- ----- Basin Index (%) 141 115 BIGHORN BASIN BALD MTN. 9380 19.9 14.8 134 15.1 13.2 114 BEAR TRAP MEADOW 8200 8.3 4.4 189 8.4 6.2 135 BONE SPRINGS DIV 9350 17.2 12.2 141 13.2 11.8 112 GRAVE SPRINGS 8550 9.0 6.9 130 9.5 8.0 119 KIRWIN 9550 16.0 7.0 229 -M 8.8 * MARQUETTE 8760 9.2 -M * 9.8 -M * MIDDLE POWDER 7760 12.2 8.1 151 10.0 8.8 114 OWL CREEK 8975 6.0 3.9 154 6.0 4.3 140 POWDER RIVER PASS 9480 12.8 8.0 160 13.4 9.6 140 SHELL CREEK 9580 15.6 11.7 133 13.4 10.7 125 TIMBER CREEK 7950 5.1 3.8 134 6.8 5.3 128 ----- ----- Basin Index (%) 151 123 SHOSHONE RIVER BLACKWATER 9780 26.5 17.3 153 23.4 16.2 144 EVENING STAR 9200 31.6 19.2 165 -M 22.2 * MARQUETTE 8760 9.2 -M * 9.8 -M * SYLVAN ROAD 7120 13.5 9.5 142 17.5 13.9 126 YOUNTS PEAK 8350 -M 11.7 * -M 12.7 * ----- ----- Basin Index (%) 156 136* POWDER RIVER BEAR TRAP MEADOW 8200 8.3 4.4 189 8.4 6.2 135 CLOUD PEAK RESERVOIR 9860 15.7 10.4 151 13.4 9.6 140 GRAVE SPRINGS 8550 9.0 6.9 130 9.5 8.0 119 HANSEN SAWMILL 8360 7.4 4.7 157 9.7 6.1 159 MIDDLE POWDER 7760 12.2 8.1 151 10.0 8.8 114 POWDER RIVER PASS 9480 12.8 8.0 160 13.4 9.6 140 SOLDIER PARK 8720 9.2 -M * 8.8 -M * ----- ----- Basin Index (%) 154 133 TONGUE RIVER BIG GOOSE 7990 8.1 6.2 131 10.1 7.9 128 BONE SPRINGS DIV 9350 17.2 12.2 141 13.2 11.8 112 BURGESS JUNCTION 7880 11.1 8.3 134 12.0 9.0 133 DOME LAKE 8880 11.1 8.7 128 10.3 10.0 103 LITTLE GOOSE 8870 9.4 -M * 11.9 -M * SUCKER CREEK 8880 13.1 9.0 146 14.5 10.6 137 TIE CREEK 6870 6.3 4.3 147 10.8 8.5 127 ----- ----- Basin Index (%) 137 123 BELLE FOURCHE COLE CANYON 5910 5.0 4.9 102 -M 7.2 * ----- ----- Basin Index (%) 102 * CHEYENNE RIVER BASIN BLIND PARK 6890 8.0 6.4 125 15.1 9.5 159 NORTH RAPID CREEK 6130 7.8 5.9 132 13.2 7.7 171 ----- ----- Basin Index (%) 128 165 UPPER N. PLATTE ARAPAHO RIDGE 10960 22.7 16.8 135 22.2 17.8 125 BLACKHALL MTN 9820 30.7 -M * 27.1 -M * COLUMBINE 9160 29.9 19.9 150 -M 20.4 * DIVIDE PEAK 8880 15.2 15.9 96 18.6 16.8 111 JOE WRIGHT 10120 16.9 16.8 101 26.3 20.0 132 LAPRELE CREEK 8375 6.6 7.8 85 8.2 9.3 88 MED BOW 10500 14.4 -M * 28.3 -M * NORTH FRENCH CREEK 10130 -M 21.1 * -M 21.1 * NEVER SUMMER 10280 20.6 16.3 126 16.0 -M * OLD BATTLE 10000 27.5 24.1 114 31.1 28.0 111 RAWAH 9020 11.4 8.8 130 14.1 11.0 128 SAGE CREEK BASIN 7850 9.5 10.6 90 10.6 11.8 90 SAND LAKE 10050 26.2 21.2 124 25.4 19.0 134 SOUTH BRUSH CREEK 8440 9.7 10.3 94 11.9 11.8 101 TOWER 10500 44.2 36.5 121 -M 32.0 * WEBBER SPRINGS 9250 21.6 18.8 115 23.9 21.2 113 WILLOW CREEK PASS 9540 11.7 9.6 122 12.3 10.4 118 ZIRKEL 9340 36.5 23.1 158 27.5 23.6 117 ----- ----- Basin Index (%) 121 116 SWEETWATER DEER PARK 9700 -M 10.8 * 15.5 15.4 101 LARSEN CREEK 9000 12.0 9.6 125 13.8 -M * SOUTH PASS 9040 13.7 11.5 119 12.7 13.5 94 ----- ----- Basin Index (%) 122 98 LOWER N. PLATTE CASPER MTN. 7900 -M 10.3 * -M 11.2 * LAPRELE CREEK 8375 6.6 7.8 85 8.2 9.3 88 RENO HILL 8400 12.9 10.2 126 14.6 11.1 132 WINDY PEAK 7900 6.6 5.8 114 9.2 7.8 118 ----- ----- Basin Index (%) 110 113 LARAMIE RIVER BROOKLYN LAKE 10240 25.9 15.1 172 24.6 16.1 153 CINNABAR PARK 9574 19.7 17.2 115 20.4 19.8 103 CROW CREEK 8330 6.6 6.7 99 9.6 7.8 123 DEADMAN HILL 10220 20.4 12.5 163 19.0 12.8 148 RAWAH 9020 11.4 8.8 130 14.1 11.0 128 ROACH 9700 -M 12.5 * -M 14.7 * ----- ----- Basin Index (%) 139 130 S. PLATTE BLACK MOUNTAIN 8920 9.8 -M * 11.3 -M * CROW CREEK 8330 6.6 6.7 99 9.6 7.8 123 DEADMAN HILL 10220 20.4 12.5 163 19.0 12.8 148 ----- ----- Basin Index (%) 141 139 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 9.7 9.9 98 14.3 12.1 118 DIVIDE PEAK 8880 15.2 15.9 96 18.6 16.8 111 ELK RIVER 8700 18.6 15.7 118 19.1 16.0 119 LITTLE SNAKE RIVER 8915 25.7 19.8 130 29.9 25.1 119 OLD BATTLE 10000 27.5 24.1 114 31.1 28.0 111 SAGE CREEK BASIN 7850 9.5 10.6 90 10.6 11.8 90 SANDSTONE RS 8150 10.3 10.5 98 15.1 15.1 100 WHISKEY PARK 8950 33.5 21.7 154 31.0 22.4 138 ----- ----- Basin Index (%) 117 115 UPPER GREEN RIVER BIG SANDY OPENING 9080 14.1 10.2 138 13.2 10.6 125 BLIND BULL SUM 8650 30.5 18.0 169 20.1 16.0 126 EAST RIM DIVIDE 7930 14.9 8.2 182 13.3 9.6 139 ELKHART PARK G.S. 9400 15.5 9.5 163 14.6 10.6 138 GROS VENTRE SUMMIT 8750 13.3 9.8 136 12.7 10.2 125 GUNSIGHT PASS 9820 17.1 10.6 161 15.9 11.0 145 KENDALL R.S. 7740 19.5 9.8 199 17.3 11.7 148 LOOMIS PARK 8240 20.8 11.8 176 21.1 14.1 150 NEW FORK LAKE 8340 14.3 8.3 172 12.0 8.8 136 POCKET CREEK 9360 11.6 -M * 11.6 -M * SNIDER BASIN 8060 18.1 9.7 187 17.6 11.6 152 SPRING CREEK DIVIDE 9000 30.9 18.7 165 28.1 19.3 146 TRIPLE PEAK 8500 30.1 17.0 177 31.5 20.4 154 ----- ----- Basin Index (%) 169 141 LOWER GREEN RIVER BLACKS FORK JCT 8870 6.9 -M * 10.8 -M * BUCK PASTURE 9700 11.6 -M * 13.1 -M * EF BLACKS FORK GS 9360 8.0 -M * 8.3 -M * HAMS FORK 7840 14.1 9.3 152 12.3 9.2 134 HEWINTA 9519 8.5 8.0 106 11.3 10.9 104 HICKERSON PARK 9145 6.2 6.0 103 7.2 7.6 95 HOLE-IN-ROCK 9150 5.5 5.6 98 7.3 7.1 103 INDIAN CREEK 9425 27.8 19.0 146 22.3 17.9 125 KELLEY R.S. 8180 16.8 12.2 138 18.5 14.6 127 SPIRIT LK 10235 7.5 -M * 10.6 -M * STEEL CREEK PARK 10200 15.1 11.6 130 12.9 12.5 103 ----- ----- Basin Index (%) 131 115 UPPER BEAR RIVER BEAR RIVER RS 8777 7.9 -M * 10.1 -M * BUG LAKE 7950 19.4 14.9 130 16.8 15.5 108 BURTS MILLER RANCH 8000 5.8 -M * 5.8 -M * CHALK CREEK #1 8993 18.6 18.5 101 18.5 19.6 94 HAYDEN FORK 9212 12.9 12.2 106 16.9 16.4 103 KELLEY R.S. 8180 16.8 12.2 138 18.5 14.6 127 LILY LAKE 9156 11.4 10.4 110 12.6 13.2 95 MONTE CRISTO 8960 22.6 21.2 107 20.5 20.6 100 SALT RIVER SUMMIT 7760 16.1 10.7 150 17.0 13.5 126 ----- ----- Basin Index (%) 118 107 ----------------------------------------------------------------------------- -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.