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 MONDAY: DECEMBER 26 , 2005 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 6.8 7.4 92 10.5 9.6 109 COTTONWOOD CREEK 7600 8.3 8.7 95 11.6 12.4 94 GRANITE CREEK 6770 6.7 6.8 99 9.5 8.7 109 GRASSY LAKE 7265 12.7 13.3 95 17.3 15.8 109 GROS VENTRE SUMMIT 8750 5.2 6.3 83 6.2 6.0 103 LEWIS LAKE DIVIDE 7850 12.9 13.4 96 16.3 16.0 102 PHILLIPS BENCH 8200 10.5 11.4 92 12.5 12.3 102 SALT RIVER SUMMIT 7600 5.2 4.9 106 7.2 8.2 88 SNAKE RIVER STATION 6920 6.5 7.2 90 11.4 10.1 113 SPRING CREEK DIVIDE 9000 10.6 11.5 92 11.0 11.9 92 THUMB DIVIDE 7980 6.9 6.9 100 8.9 8.4 106 TOGWOTEE PASS 9580 11.1 10.8 103 11.8 11.1 106 TWO OCEAN PLATEAU 9240 16.2 12.5 130 13.8 12.5 110 WILLOW CREEK 8450 10.5 13.0 81 15.1 14.3 106 ----- ----- Basin wide percent of average 97 104 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 10.8 10.7 101 8.9 9.2 97 BLACK BEAR 8170 18.3 15.8 116 19.4 16.2 120 CANYON 8090 5.9 5.5 107 8.2 7.2 114 FISHER CREEK 9100 17.8 15.0 119 17.5 15.7 111 MADISON PLATEAU 7750 9.4 10.3 91 13.1 11.4 115 NORTHEAST ENTRANCE 7350 4.1 4.5 91 6.2 5.9 105 PARKER PEAK 9400 9.1 9.9 92 9.1 7.7 118 SYLVAN LAKE 8420 7.3 9.7 75 10.8 10.2 106 THUMB DIVIDE 7980 6.9 6.9 100 8.9 8.4 106 TWO OCEAN PLATEAU 9240 16.2 12.5 130 13.8 12.5 110 WHISKEY CREEK 6800 4.8 6.8 71 9.9 9.1 109 WHITE MILL 8700 10.5 10.3 102 10.6 11.8 90 WOLVERINE 7650 4.4 5.2 85 4.6 6.5 71 ----- ----- Basin wide percent of average 102 107 WIND RIVER BURROUGHS CREEK 8750 -M 6.2 * 8.4 7.4 114 COLD SPRINGS 9630 2.1 4.4 48 4.4 5.4 81 DEER PARK 9700 5.8 6.3 92 7.6 10.2 75 HOBBS PARK 10100 3.6 7.2 50 5.2 6.1 85 LITTLE WARM 9370 4.0 4.9 82 6.0 6.3 95 SOUTH PASS 9040 5.5 7.7 71 6.8 8.6 79 ST. LAWRENCE ALT 8620 .9 3.6 25 3.0 4.4 68 TOGWOTEE PASS 9580 11.1 10.8 103 11.8 11.1 106 TOWNSEND CREEK 8700 2.4 4.2 57 5.0 5.7 88 ----- ----- Basin wide percent of average 72 89 BIGHORN BASIN BALD MTN. 9380 7.3 9.0 81 6.0 7.9 76 BEAR TRAP MEADOW 8200 2.6 2.4 108 4.4 4.3 102 BLACKWATER 9780 10.1 11.3 89 8.9 10.1 88 BONE SPRINGS DIV 9350 6.9 7.3 95 7.0 6.8 103 EVENING STAR 9200 10.5 12.8 82 13.1 12.1 108 GRAVE SPRINGS 8550 3.7 3.7 100 6.1 4.6 133 KIRWIN 9550 5.8 5.6 104 6.3 5.6 112 MARQUETTE 8760 1.2 4.8 25 4.2 5.1 82 MIDDLE POWDER 7760 5.5 5.2 106 5.9 6.4 92 OWL CREEK 8975 1.1 2.6 42 3.7 2.8 132 POWDER RIVER PASS 9480 4.3 4.9 88 6.2 5.6 111 SHELL CREEK 9580 6.2 6.8 91 5.8 6.3 92 SYLVAN LAKE 8420 7.3 9.7 75 10.8 10.2 106 SYLVAN ROAD 7120 4.3 5.7 75 8.6 9.4 91 TIMBER CREEK 7950 1.1 2.9 38 3.1 3.6 86 YOUNTS PEAK 8350 -M 7.3 * 9.6 7.6 126 ----- ----- Basin wide percent of average 82 101 SHOSHONE RIVER BLACKWATER 9780 10.1 11.3 89 8.9 10.1 88 EVENING STAR 9200 10.5 12.8 82 13.1 12.1 108 KIRWIN 9550 5.8 5.6 104 6.3 5.6 112 MARQUETTE 8760 1.2 4.8 25 4.2 5.1 82 SYLVAN LAKE 8420 7.3 9.7 75 10.8 10.2 106 SYLVAN ROAD 7120 4.3 5.7 75 8.6 9.4 91 YOUNTS PEAK 8350 -M 7.3 * 9.6 7.6 126 ----- ----- Basin wide percent of average 79 102 POWDER-TONGUE BEAR TRAP MEADOW 8200 2.6 2.4 108 4.4 4.3 102 BIG GOOSE 7990 2.8 4.0 70 5.0 4.2 119 BONE SPRINGS DIV 9350 6.9 7.3 95 7.0 6.8 103 BURGESS JUNCTION 7880 5.1 5.1 100 6.6 5.7 116 CLOUD PEAK RESERVOIR 9860 5.6 5.3 106 6.2 6.1 102 DOME LAKE 8880 5.4 5.7 95 6.1 6.5 94 GRAVE SPRINGS 8550 3.7 3.7 100 6.1 4.6 133 HANSEN SAWMILL 8360 1.8 3.1 58 3.6 4.1 88 MIDDLE POWDER 7760 5.5 5.2 106 5.9 6.4 92 POWDER RIVER PASS 9480 4.3 4.9 88 6.2 5.6 111 SUCKER CREEK 8880 4.9 4.8 102 7.5 6.3 119 TIE CREEK 6870 2.9 2.1 138 6.2 4.8 129 ----- ----- Basin wide percent of average 96 108 BELLE FOURCHE BLIND PARK 6890 3.6 3.1 116 5.5 5.9 93 COLE CANYON 5910 2.7 2.8 96 4.6 -M * NORTH RAPID CREEK 6130 3.4 3.0 113 4.5 5.0 90 ----- ----- Basin wide percent of average 109 92 UPPER N. PLATTE RIVER COLUMBINE 9160 13.9 9.0 154 17.2 10.5 164 DIVIDE PEAK 8860 7.4 8.4 88 10.9 9.3 117 ELK RIVER 8700 7.4 6.4 116 10.4 8.2 127 JOE WRIGHT 10120 11.9 9.0 132 14.8 11.1 133 NORTH FRENCH CREEK 10130 14.7 12.3 120 15.7 11.1 141 OLD BATTLE 9920 15.5 13.6 114 19.6 14.7 133 SAGE CREEK BASIN 7850 4.1 4.8 85 6.6 5.4 122 SOUTH BRUSH CREEK 8440 6.0 4.7 128 9.6 7.3 132 TOWER 10500 23.1 19.1 121 25.2 16.5 153 WEBBER SPRINGS 9250 -M 10.6 * -M 12.0 * WILLOW CREEK PASS 9540 6.1 5.2 117 7.7 6.0 128 ----- ----- Basin wide percent of average 119 138 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 10.8 9.8 110 8.6 9.3 92 CASPER MTN. 7850 4.9 6.5 75 7.6 6.8 112 DEADMAN HILL 10220 8.0 7.1 113 9.2 7.4 124 DEER PARK 9700 5.8 6.3 92 7.6 10.2 75 LAPRELE CREEK 8375 2.7 4.9 55 4.2 5.8 72 RENO HILL 8500 5.5 6.2 89 7.2 6.8 106 ROACH 9700 7.4 6.7 110 10.3 7.9 130 SAND LAKE 10050 14.8 13.8 107 15.1 10.7 141 SOUTH PASS 9040 5.5 7.7 71 6.8 8.6 79 WINDY PEAK 7900 2.2 3.3 67 4.0 5.2 77 ----- ----- Basin wide percent of average 93 102 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 5.6 3.6 156 8.6 6.6 130 DIVIDE PEAK 8860 7.4 8.4 88 10.9 9.3 117 OLD BATTLE 9920 15.5 13.6 114 19.6 14.7 133 SANDSTONE RS 8150 5.5 4.7 117 10.6 8.2 129 WHISKEY PARK 8950 13.0 10.1 129 16.0 12.2 131 ----- ----- Basin wide percent of average 116 129 UPPER GREEN RIVER BIG SANDY OPENING 9080 4.1 6.4 64 5.0 6.2 81 BLIND BULL SUM 8900 9.6 12.0 80 8.4 10.2 82 EAST RIM DIVIDE 7930 4.0 5.4 74 4.8 5.4 89 ELKHART PARK G.S. 9400 5.2 5.8 90 6.1 6.3 97 GROS VENTRE SUMMIT 8750 5.2 6.3 83 6.2 6.0 103 KENDALL R.S. 7740 5.1 6.0 85 6.4 6.4 100 LOOMIS PARK 8240 6.6 7.3 90 7.5 7.6 99 NEW FORK LAKE 8340 4.1 4.9 84 4.3 5.5 78 SNIDER BASIN 8060 6.4 6.3 102 6.6 7.2 92 SPRING CREEK DIVIDE 9000 10.6 11.5 92 11.0 11.9 92 TRIPLE PEAK 8500 10.2 10.8 94 11.9 10.3 116 ----- ----- Basin wide percent of average 86 94 LOWER GREEN RIVER HAMS FORK 7840 4.3 4.9 88 4.9 5.4 91 HEWINTA 9500 4.7 3.7 127 7.1 6.6 108 HICKERSON PARK 9100 1.3 2.6 50 3.5 4.0 88 HOLE-IN-ROCK 9150 3.6 2.5 144 4.0 3.7 108 INDIAN CREEK 9425 10.2 11.4 89 9.6 11.2 86 KELLEY R.S. 8180 6.1 7.0 87 7.8 9.2 85 STEEL CREEK PARK 10100 6.2 6.2 100 7.7 7.1 108 ----- ----- Basin wide percent of average 95 94 UPPER BEAR RIVER BUG LAKE 7950 7.4 7.4 100 8.4 8.5 99 HAYDEN FORK 9100 7.2 5.6 129 10.2 9.2 111 KELLEY R.S. 8180 6.1 7.0 87 7.8 9.2 85 LILY LAKE 9050 5.5 5.0 110 7.0 8.0 88 MONTE CRISTO 8960 10.3 9.8 105 11.8 11.2 105 SALT RIVER SUMMIT 7600 5.2 4.9 106 7.2 8.2 88 TRIAL LAKE 9960 11.0 9.5 116 11.5 10.3 112 ----- ----- Basin wide percent of average 107 99 ----------------------------------------------------------------------------- -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.