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 TUESDAY: DECEMBER 3 , 2013 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER BASE CAMP 7030 6.7 4.2 160 7.6 6.4 119 BLACK BEAR 8170 12.8 9.3 138 13.0 11.3 115 BLIND BULL SUM 8650 8.7 5.4 161 7.3 6.0 122 COTTONWOOD CREEK 7670 6.5 4.7 138 7.9 7.2 110 EAST RIM DIVIDE 7930 3.5 2.1 167 4.5 3.6 125 GRAND TARGHEE 9260 16.1 10.0 161 12.0 10.0 120 GRANITE CREEK 6770 5.0 2.8 179 6.4 5.7 112 GRASSY LAKE 7265 9.0 6.7 134 10.8 10.5 103 GROS VENTRE SUMMIT 8750 5.5 3.9 141 5.2 4.3 121 GUNSIGHT PASS 9820 6.2 3.4 182 6.1 4.2 145 LEWIS LAKE DIVIDE 7850 8.4 7.7 109 10.4 10.5 99 PHILLIPS BENCH 8200 7.6 6.0 127 8.7 7.9 110 SALT RIVER SUMMIT 7760 3.2 2.2 145 5.2 4.6 113 SNAKE RIVER STATION 6920 5.1 3.4 150 7.1 7.0 101 SPRING CREEK DIVIDE 9000 7.1 5.4 131 7.4 6.9 107 THUMB DIVIDE 7980 4.3 3.3 130 5.1 5.7 89 TOGWOTEE PASS 9580 9.2 7.5 123 8.3 7.6 109 TWO OCEAN PLATEAU 9240 11.9 8.8 135 9.7 8.5 114 WILLOW CREEK 8380 8.5 6.1 139 11.7 10.1 116 YOUNTS PEAK 8350 -M 4.4 * -M 5.3 * ----- ----- Basin Index (%) 141 112 MADISON-GALLATIN BLACK BEAR 8170 12.8 9.3 138 13.0 11.3 115 CANYON 7870 3.6 3.1 116 4.9 5.0 98 MADISON PLATEAU 7750 6.5 5.4 120 8.1 7.7 105 WEST YELLOWSTONE 6700 3.5 2.1 167 4.5 4.5 100 WHISKEY CREEK 6800 4.3 3.4 126 6.0 6.2 97 ----- ----- Basin Index (%) 132 105 YELLOWSTONE BEARTOOTH LAKE 9360 8.0 6.4 125 6.6 5.8 114 BURNT MTN 5880 3.1 1.3 238 7.9 5.4 146 CANYON 7870 3.6 3.1 116 4.9 5.0 98 COLE CREEK 7850 6.9 4.4 157 5.1 5.1 100 EVENING STAR 9200 11.2 7.5 149 11.1 8.8 126 FISHER CREEK 9100 11.8 9.1 130 10.4 9.7 107 NORTHEAST ENTRANCE 7350 2.8 1.8 156 3.7 4.3 86 PARKER PEAK 9400 8.8 6.4 138 8.0 5.9 136 SYLVAN LAKE 8420 6.2 5.4 115 8.0 7.6 105 THUMB DIVIDE 7980 4.3 3.3 130 5.1 5.7 89 TWO OCEAN PLATEAU 9240 11.9 8.8 135 9.7 8.5 114 WHITE MILL 8700 9.1 6.3 144 7.6 7.5 101 WOLVERINE 7650 3.4 2.2 155 3.7 4.3 86 ----- ----- Basin Index (%) 138 110 WIND RIVER BURROUGHS CREEK 8750 -M 3.9 * -M 5.1 * CASTLE CREEK 8400 2.3 -M * 4.3 -M * COLD SPRINGS 9630 4.0 2.5 160 5.3 3.7 143 DEER PARK 9700 4.4 4.3 102 5.6 5.9 95 HOBBS PARK 10100 5.6 4.6 122 5.2 4.6 113 KIRWIN 9550 6.2 3.5 177 5.2 4.1 127 LITTLE WARM 9370 5.0 3.0 167 5.9 4.4 134 OWL CREEK 8975 2.8 1.7 165 2.9 2.2 132 SOUTH PASS 9040 4.6 4.0 115 4.8 5.5 87 ST. LAWRENCE ALT 8620 2.2 2.1 105 4.7 3.3 142 TOGWOTEE PASS 9580 9.2 7.5 123 8.3 7.6 109 TOWNSEND CREEK 8700 2.3 2.5 92 3.9 4.4 89 ----- ----- Basin Index (%) 130 113 BIGHORN BASIN BALD MTN. 9380 8.3 5.9 141 6.7 5.4 124 BEAR TRAP MEADOW 8200 3.2 1.5 213 4.7 3.2 147 BONE SPRINGS DIV 9350 6.1 5.2 117 5.0 5.1 98 GRAVE SPRINGS 8550 4.1 2.0 205 5.0 3.8 132 KIRWIN 9550 6.2 3.5 177 5.2 4.1 127 MARQUETTE 8760 4.2 -M * 5.3 -M * MIDDLE POWDER 7760 5.6 3.1 181 5.9 4.6 128 OWL CREEK 8975 2.8 1.7 165 2.9 2.2 132 POWDER RIVER PASS 9480 4.7 3.1 152 5.0 4.3 116 SHELL CREEK 9580 5.9 5.1 116 4.8 4.8 100 TIMBER CREEK 7950 3.0 1.7 176 4.6 3.3 139 ----- ----- Basin Index (%) 152 122 SHOSHONE RIVER BLACKWATER 9780 10.7 7.2 149 8.0 6.8 118 EVENING STAR 9200 11.2 7.5 149 11.1 8.8 126 MARQUETTE 8760 4.2 -M * 5.3 -M * SYLVAN ROAD 7120 4.1 2.9 141 7.1 6.2 115 YOUNTS PEAK 8350 -M 4.4 * -M 5.3 * ----- ----- Basin Index (%) 148 120 POWDER RIVER BEAR TRAP MEADOW 8200 3.2 1.5 213 4.7 3.2 147 CLOUD PEAK RESERVOIR 9860 5.5 4.0 138 6.4 4.8 133 GRAVE SPRINGS 8550 4.1 2.0 205 5.0 3.8 132 HANSEN SAWMILL 8360 3.6 1.7 212 4.8 3.1 155 MIDDLE POWDER 7760 5.6 3.1 181 5.9 4.6 128 POWDER RIVER PASS 9480 4.7 3.1 152 5.0 4.3 116 SOLDIER PARK 8720 3.0 -M * 4.8 -M * ----- ----- Basin Index (%) 173 134 TONGUE RIVER BIG GOOSE 7990 3.3 2.6 127 5.5 4.1 134 BONE SPRINGS DIV 9350 6.1 5.2 117 5.0 5.1 98 BURGESS JUNCTION 7880 4.3 3.2 134 5.7 4.3 133 DOME LAKE 8880 2.1 3.8 55 4.2 5.0 84 LITTLE GOOSE 8870 4.1 -M * 6.7 -M * SUCKER CREEK 8880 5.9 3.3 179 6.6 4.8 138 TIE CREEK 6870 1.6 .8 200 5.8 4.3 135 ----- ----- Basin Index (%) 123 119 BELLE FOURCHE COLE CANYON 5910 2.0 .8 250 8.1 3.6 225 ----- ----- Basin Index (%) 250 225 CHEYENNE RIVER BASIN BLIND PARK 6890 2.6 1.8 144 8.4 4.5 187 NORTH RAPID CREEK 6130 3.0 1.5 200 8.4 3.8 221 ----- ----- Basin Index (%) 170 202 UPPER N. PLATTE ARAPAHO RIDGE 10960 7.3 5.9 124 7.4 7.2 103 BLACKHALL MTN 9820 9.2 -M * 10.6 -M * COLUMBINE 9160 5.4 4.8 112 8.2 7.3 112 DIVIDE PEAK 8880 5.0 4.8 104 8.3 7.0 119 JOE WRIGHT 10120 4.5 6.2 73 8.9 8.4 106 LAPRELE CREEK 8375 1.3 2.3 57 3.8 4.2 90 MED BOW 10500 8.1 -M * 10.2 -M * NORTH FRENCH CREEK 10130 8.0 7.3 110 9.8 8.1 121 NEVER SUMMER 10280 6.4 5.2 123 6.4 -M * OLD BATTLE 10000 8.4 8.2 102 10.0 10.4 96 RAWAH 9020 3.7 2.7 137 6.6 5.2 127 SAGE CREEK BASIN 7850 2.3 2.4 96 4.8 4.8 100 SAND LAKE 10050 7.7 7.5 103 8.2 7.6 108 SOUTH BRUSH CREEK 8440 3.5 3.0 117 6.0 5.1 118 TOWER 10500 11.9 11.8 101 13.6 12.1 112 WEBBER SPRINGS 9250 5.2 5.2 100 7.6 8.0 95 WILLOW CREEK PASS 9540 5.0 3.8 132 5.6 4.6 122 ZIRKEL 9340 6.0 4.9 122 9.2 8.7 106 ----- ----- Basin Index (%) 107 109 SWEETWATER DEER PARK 9700 4.4 4.3 102 5.6 5.9 95 LARSEN CREEK 9000 1.6 -M * 4.2 -M * SOUTH PASS 9040 4.6 4.0 115 4.8 5.5 87 ----- ----- Basin Index (%) 108 91 LOWER N. PLATTE CASPER MTN. 7900 6.8 3.6 189 7.0 5.6 125 LAPRELE CREEK 8375 1.3 2.3 57 3.8 4.2 90 RENO HILL 8400 6.4 3.8 168 8.4 5.1 165 WINDY PEAK 7900 1.3 1.8 72 3.8 3.7 103 ----- ----- Basin Index (%) 137 124 LARAMIE RIVER BROOKLYN LAKE 10240 5.3 4.4 120 6.1 6.0 102 CINNABAR PARK 9574 5.4 5.5 98 7.1 7.0 101 CROW CREEK 8330 1.4 2.2 64 4.0 3.6 111 DEADMAN HILL 10220 6.5 5.0 130 7.1 5.5 129 RAWAH 9020 3.7 2.7 137 6.6 5.2 127 ROACH 9700 4.7 4.2 112 6.8 5.9 115 ----- ----- Basin Index (%) 112 114 S. PLATTE BLACK MOUNTAIN 8920 3.2 -M * 4.5 -M * CROW CREEK 8330 1.4 2.2 64 4.0 3.6 111 DEADMAN HILL 10220 6.5 5.0 130 7.1 5.5 129 ----- ----- Basin Index (%) 110 122 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 2.9 1.6 181 6.3 4.8 131 DIVIDE PEAK 8880 5.0 4.8 104 8.3 7.0 119 ELK RIVER 8700 4.4 3.2 138 7.3 6.0 122 LITTLE SNAKE RIVER 8915 5.6 4.0 140 10.4 9.4 111 OLD BATTLE 10000 8.4 8.2 102 10.0 10.4 96 SAGE CREEK BASIN 7850 2.3 2.4 96 4.8 4.8 100 SANDSTONE RS 8150 2.8 2.3 122 6.4 5.6 114 WHISKEY PARK 8950 8.4 5.1 165 11.3 7.7 147 ----- ----- Basin Index (%) 126 116 UPPER GREEN RIVER BIG SANDY OPENING 9080 4.0 3.7 108 3.9 4.2 93 BLIND BULL SUM 8650 8.7 5.4 161 7.3 6.0 122 EAST RIM DIVIDE 7930 3.5 2.1 167 4.5 3.6 125 ELKHART PARK G.S. 9400 5.0 3.5 143 5.1 4.3 119 GROS VENTRE SUMMIT 8750 5.5 3.9 141 5.2 4.3 121 GUNSIGHT PASS 9820 6.2 3.4 182 6.1 4.2 145 KENDALL R.S. 7740 5.0 2.7 185 5.9 4.2 140 LOOMIS PARK 8240 5.4 3.3 164 6.5 5.1 127 NEW FORK LAKE 8340 3.7 2.4 154 3.6 3.5 103 POCKET CREEK 9360 4.7 -M * 3.8 -M * SNIDER BASIN 8060 3.9 2.9 134 4.5 4.1 110 SPRING CREEK DIVIDE 9000 7.1 5.4 131 7.4 6.9 107 TRIPLE PEAK 8500 6.5 5.1 127 8.1 7.1 114 ----- ----- Basin Index (%) 147 118 LOWER GREEN RIVER BLACKS FORK JCT 8870 1.5 -M * 4.0 -M * BUCK PASTURE 9700 2.5 -M * 4.8 -M * EF BLACKS FORK GS 9360 1.6 -M * 3.8 -M * HAMS FORK 7840 1.4 2.4 58 3.6 3.5 103 HEWINTA 9519 1.2 2.0 60 4.3 4.7 91 HICKERSON PARK 9145 2.3 1.6 144 3.8 3.8 100 HOLE-IN-ROCK 9150 1.3 1.7 76 3.5 3.6 97 INDIAN CREEK 9425 5.5 6.1 90 6.0 6.2 97 KELLEY R.S. 8180 3.5 3.2 109 5.1 5.2 98 SPIRIT LK 10235 2.6 -M * 4.8 -M * STEEL CREEK PARK 10200 4.4 4.1 107 5.1 5.4 94 ----- ----- Basin Index (%) 93 97 UPPER BEAR RIVER BEAR RIVER RS 8777 1.4 -M * 3.8 -M * BUG LAKE 7950 3.5 3.6 97 4.7 5.8 81 BURTS MILLER RANCH 8000 1.0 -M * 2.3 -M * CHALK CREEK #1 8993 5.4 5.6 96 6.5 7.8 83 HAYDEN FORK 9212 2.1 3.1 68 5.4 6.5 83 KELLEY R.S. 8180 3.5 3.2 109 5.1 5.2 98 LILY LAKE 9156 2.5 3.0 83 5.2 5.7 91 MONTE CRISTO 8960 4.7 6.0 78 5.7 7.5 76 SALT RIVER SUMMIT 7760 3.2 2.2 145 5.2 4.6 113 ----- ----- Basin Index (%) 93 88 ----------------------------------------------------------------------------- -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.