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 THURSDAY: JANUARY 6 , 2011 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 10.5 8.9 118 13.5 11.2 121 COTTONWOOD CREEK 7670 14.5 10.5 138 19.1 14.5 132 GRAND TARGHEE 9260 25.2 -M * 18.5 -M * GRANITE CREEK 6770 10.9 8.4 130 13.3 10.2 130 GRASSY LAKE 7265 17.4 16.0 109 20.6 18.7 110 GROS VENTRE SUMMIT 8750 8.8 7.4 119 8.8 6.8 129 GUNSIGHT PASS 9820 9.4 -M * 9.7 -M * LEWIS LAKE DIVIDE 7850 19.2 16.0 120 20.3 18.8 108 PHILLIPS BENCH 8200 17.0 13.6 125 18.5 14.6 127 SALT RIVER SUMMIT 7760 8.4 6.0 140 12.3 9.7 127 SNAKE RIVER STATION 6920 8.1 8.6 94 14.5 11.8 123 SPRING CREEK DIVIDE 9000 16.5 13.3 124 17.2 14.1 122 THUMB DIVIDE 7980 12.0 8.3 145 12.5 9.7 129 TOGWOTEE PASS 9580 15.4 12.5 123 16.6 12.9 129 TWO OCEAN PLATEAU 9240 19.3 14.3 135 15.5 14.4 108 WILLOW CREEK 8380 16.7 15.3 109 21.9 16.6 132 ----- ----- Basin wide percent of average 122 122 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9360 12.6 12.3 102 12.4 10.7 116 BLACK BEAR 8170 23.6 18.7 126 24.2 19.0 127 CANYON 7870 8.7 6.7 130 10.2 8.3 123 FISHER CREEK 9100 19.3 17.5 110 19.1 18.4 104 MADISON PLATEAU 7750 15.3 12.2 125 17.0 13.2 129 NORTHEAST ENTRANCE 7350 6.2 5.4 115 8.1 6.8 119 PARKER PEAK 9400 14.3 11.3 127 14.6 8.7 168 SYLVAN LAKE 8420 12.2 11.3 108 15.3 11.6 132 THUMB DIVIDE 7980 12.0 8.3 145 12.5 9.7 129 TWO OCEAN PLATEAU 9240 19.3 14.3 135 15.5 14.4 108 WHISKEY CREEK 6800 10.6 8.2 129 13.1 10.6 124 WHITE MILL 8700 13.3 12.0 111 14.4 13.7 105 WOLVERINE 7650 7.7 6.2 124 7.6 7.4 103 ----- ----- Basin wide percent of average 121 121 WIND RIVER BURROUGHS CREEK 8750 8.1 7.3 111 8.5 8.6 99 CASTLE CREEK 8400 3.7 -M * 4.4 -M * COLD SPRINGS 9630 5.0 4.8 104 5.1 5.9 86 DEER PARK 9700 12.8 7.2 178 13.8 11.5 120 HOBBS PARK 10100 8.6 8.0 108 7.7 6.7 115 LITTLE WARM 9370 6.7 5.8 116 6.9 7.2 96 SOUTH PASS 9040 10.4 8.6 121 9.4 9.6 98 ST. LAWRENCE ALT 8620 3.3 3.9 85 4.2 4.8 88 TOGWOTEE PASS 9580 15.4 12.5 123 16.6 12.9 129 TOWNSEND CREEK 8700 4.8 4.5 107 6.8 6.2 110 ----- ----- Basin wide percent of average 120 108 BIGHORN BASIN BALD MTN. 9380 11.0 10.3 107 9.9 9.0 110 BEAR TRAP MEADOW 8200 3.6 2.7 133 4.7 4.6 102 BLACKWATER 9780 14.3 12.7 113 13.7 11.4 120 BONE SPRINGS DIV 9350 8.3 8.2 101 7.6 7.7 99 EVENING STAR 9200 16.3 14.6 112 17.6 13.8 128 GRAVE SPRINGS 8550 3.7 4.4 84 4.3 5.2 83 KIRWIN 9550 7.0 6.2 113 7.6 6.2 123 MARQUETTE 8760 1.7 5.0 34 3.7 5.5 67 MIDDLE POWDER 7760 5.3 5.8 91 3.5 7.1 49 OWL CREEK 8975 2.6 2.7 96 2.9 3.0 97 POWDER RIVER PASS 9480 6.6 5.5 120 7.5 6.4 117 SHELL CREEK 9580 7.5 7.7 97 6.5 7.1 92 SYLVAN LAKE 8420 12.2 11.3 108 15.3 11.6 132 SYLVAN ROAD 7120 8.2 6.6 124 11.3 10.6 107 TIMBER CREEK 7950 2.3 3.1 74 2.7 3.8 71 YOUNTS PEAK 8350 9.6 8.6 112 8.8 8.8 100 ----- ----- Basin wide percent of average 104 105 SHOSHONE RIVER BLACKWATER 9780 14.3 12.7 113 13.7 11.4 120 EVENING STAR 9200 16.3 14.6 112 17.6 13.8 128 KIRWIN 9550 7.0 6.2 113 7.6 6.2 123 MARQUETTE 8760 1.7 5.0 34 3.7 5.5 67 SYLVAN LAKE 8420 12.2 11.3 108 15.3 11.6 132 SYLVAN ROAD 7120 8.2 6.6 124 11.3 10.6 107 YOUNTS PEAK 8350 9.6 8.6 112 8.8 8.8 100 ----- ----- Basin wide percent of average 107 115 POWDER-TONGUE BEAR TRAP MEADOW 8200 3.6 2.7 133 4.7 4.6 102 BIG GOOSE 7990 3.1 4.7 66 4.7 4.7 100 BONE SPRINGS DIV 9350 8.3 8.2 101 7.6 7.7 99 BURGESS JUNCTION 7880 3.9 5.9 66 5.2 6.4 81 CLOUD PEAK RESERVOIR 9860 7.1 6.1 116 7.5 6.7 112 DOME LAKE 8880 4.0 6.4 63 6.1 7.2 85 GRAVE SPRINGS 8550 3.7 4.4 84 4.3 5.2 83 HANSEN SAWMILL 8360 3.2 3.4 94 3.7 4.5 82 LITTLE GOOSE 8870 3.7 -M * 7.4 -M * MIDDLE POWDER 7760 5.3 5.8 91 3.5 7.1 49 POWDER RIVER PASS 9480 6.6 5.5 120 7.5 6.4 117 SOLDIER PARK 8720 3.0 -M * 4.4 -M * SUCKER CREEK 8880 5.4 5.6 96 6.2 7.0 89 TIE CREEK 6870 2.4 2.7 89 4.3 5.4 80 ----- ----- Basin wide percent of average 92 90 BELLE FOURCHE BLIND PARK 6890 3.2 4.0 80 8.7 6.5 134 COLE CANYON 5910 3.5 3.5 100 5.9 4.0 148 NORTH RAPID CREEK 6130 3.6 3.6 100 7.5 5.5 136 ----- ----- Basin wide percent of average 93 138 UPPER N. PLATTE RIVER COLUMBINE 9160 15.8 11.0 144 18.8 12.4 152 DIVIDE PEAK 8880 11.9 9.9 120 15.6 10.7 146 ELK RIVER 8700 12.1 8.0 151 14.8 9.5 156 JOE WRIGHT 10120 14.4 10.3 140 19.8 12.6 157 NORTH FRENCH CREEK 10130 21.5 14.2 151 21.3 12.8 166 OLD BATTLE 10000 24.1 15.5 155 24.7 17.1 144 SAGE CREEK BASIN 7850 10.7 5.7 188 11.5 6.2 185 SOUTH BRUSH CREEK 8440 9.4 5.5 171 12.7 8.3 153 TOWER 10500 28.0 22.1 127 27.6 19.2 144 WEBBER SPRINGS 9250 16.4 12.2 134 21.1 13.9 152 WILLOW CREEK PASS 9540 10.8 5.9 183 10.8 6.7 161 ----- ----- Basin wide percent of average 146 154 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 15.0 11.5 130 16.5 10.8 153 CASPER MTN. 7900 6.0 7.3 82 8.8 7.5 117 DEADMAN HILL 10220 5.4 8.1 67 13.4 8.3 161 DEER PARK 9700 12.8 7.2 178 13.8 11.5 120 LAPRELE CREEK 8375 5.8 5.7 102 7.1 6.5 109 RENO HILL 8400 7.3 6.9 106 9.2 7.5 123 ROACH 9700 11.3 7.9 143 14.3 9.1 157 SAND LAKE 10050 19.4 15.8 123 18.5 12.3 150 SOUTH PASS 9040 10.4 8.6 121 9.4 9.6 98 WINDY PEAK 7900 4.6 3.6 128 7.1 5.8 122 ----- ----- Basin wide percent of average 119 133 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 5.9 4.7 126 9.1 7.6 120 DIVIDE PEAK 8880 11.9 9.9 120 15.6 10.7 146 OLD BATTLE 10000 24.1 15.5 155 24.7 17.1 144 SANDSTONE RS 8150 7.5 5.9 127 15.1 9.5 159 WHISKEY PARK 8950 -M 12.2 * 21.5 14.3 150 ----- ----- Basin wide percent of average 137 145 UPPER GREEN RIVER BIG SANDY OPENING 9080 8.3 7.3 114 9.0 7.0 129 BLIND BULL SUM 8650 14.5 14.1 103 11.2 11.9 94 EAST RIM DIVIDE 7930 7.1 6.3 113 7.0 6.2 113 ELKHART PARK G.S. 9400 6.7 6.7 100 7.4 7.1 104 GROS VENTRE SUMMIT 8750 8.8 7.4 119 8.8 6.8 129 GUNSIGHT PASS 9820 9.4 -M * 9.7 -M * KENDALL R.S. 7740 6.8 7.2 94 8.6 7.4 116 LOOMIS PARK 8240 9.7 8.6 113 10.8 9.0 120 NEW FORK LAKE 8340 6.4 5.8 110 6.3 6.3 100 POCKET CREEK 9360 6.6 -M * 8.3 -M * SNIDER BASIN 8060 10.3 7.3 141 10.9 8.6 127 SPRING CREEK DIVIDE 9000 16.5 13.3 124 17.2 14.1 122 TRIPLE PEAK 8500 14.8 12.7 117 16.8 12.1 139 ----- ----- Basin wide percent of average 114 118 LOWER GREEN RIVER HAMS FORK 7840 7.7 5.9 131 8.8 6.3 140 HEWINTA 9519 5.2 4.5 116 9.8 7.4 132 HICKERSON PARK 9145 3.3 3.1 106 5.2 4.4 118 HOLE-IN-ROCK 9150 3.8 2.9 131 5.5 4.0 138 INDIAN CREEK 9425 16.9 13.3 127 16.2 13.0 125 KELLEY R.S. 8180 11.3 8.1 140 14.0 10.8 130 STEEL CREEK PARK 10200 8.7 7.1 123 11.8 8.0 148 ----- ----- Basin wide percent of average 127 132 UPPER BEAR RIVER BUG LAKE 7950 15.6 9.1 171 17.3 9.8 177 HAYDEN FORK 9212 10.8 6.9 157 18.2 10.6 172 KELLEY R.S. 8180 11.3 8.1 140 14.0 10.8 130 LILY LAKE 9156 9.8 5.9 166 13.2 9.1 145 MONTE CRISTO 8960 18.3 12.1 151 21.1 12.9 164 SALT RIVER SUMMIT 7760 8.4 6.0 140 12.3 9.7 127 TRIAL LAKE 9992 21.0 11.3 186 19.5 12.0 163 ----- ----- Basin wide percent of average 160 154 ----------------------------------------------------------------------------- -M = Missing data * = Data may not provide a valid measure of conditions. Units = inches for the Current and Average Snow Water Equivalent and Total Precipitation values If the Basin wide percent of average 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 Average represents the snow water equivalent found at selected SNOTEL sites in or near the basin compared to the average 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. Reference period for average conditions is 1971-2000. Provisional data, subject to revision. ---------------------------------------------------------------------------- -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.