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 WEDNESDAY: DECEMBER 28 , 2005 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 7.3 7.7 95 11.1 9.8 113 COTTONWOOD CREEK 7600 9.1 9.0 101 12.4 12.8 97 GRANITE CREEK 6770 7.3 7.1 103 10.1 9.0 112 GRASSY LAKE 7265 13.9 13.8 101 18.7 16.3 115 GROS VENTRE SUMMIT 8750 5.6 6.5 86 6.5 6.1 107 LEWIS LAKE DIVIDE 7850 13.7 13.9 99 17.3 16.5 105 PHILLIPS BENCH 8200 11.5 11.8 97 13.4 12.7 106 SALT RIVER SUMMIT 7600 5.5 5.0 110 7.5 8.5 88 SNAKE RIVER STATION 6920 7.0 7.4 95 12.1 10.4 116 SPRING CREEK DIVIDE 9000 11.3 11.8 96 11.6 12.3 94 THUMB DIVIDE 7980 7.1 7.1 100 9.1 8.6 106 TOGWOTEE PASS 9580 11.6 11.1 105 12.3 11.4 108 TWO OCEAN PLATEAU 9240 16.8 12.8 131 14.1 12.8 110 WILLOW CREEK 8450 11.8 13.5 87 16.2 14.7 110 ----- ----- Basin wide percent of average 101 106 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 11.1 10.9 102 9.1 9.5 96 BLACK BEAR 8170 19.6 16.3 120 20.0 16.7 120 CANYON 8090 6.4 5.7 112 8.7 7.4 118 FISHER CREEK 9100 18.6 15.5 120 18.1 16.2 112 MADISON PLATEAU 7750 10.1 10.6 95 13.7 11.7 117 NORTHEAST ENTRANCE 7350 4.2 4.7 89 6.4 6.1 105 PARKER PEAK 9400 9.5 10.1 94 9.3 7.9 118 SYLVAN LAKE 8420 7.8 10.0 78 11.3 10.5 108 THUMB DIVIDE 7980 7.1 7.1 100 9.1 8.6 106 TWO OCEAN PLATEAU 9240 16.8 12.8 131 14.1 12.8 110 WHISKEY CREEK 6800 5.3 7.1 75 10.2 9.4 109 WHITE MILL 8700 10.9 10.6 103 10.9 12.1 90 WOLVERINE 7650 4.6 5.4 85 4.6 6.7 69 ----- ----- Basin wide percent of average 104 107 WIND RIVER BURROUGHS CREEK 8750 -M 6.3 * 8.5 7.6 112 COLD SPRINGS 9630 2.1 4.4 48 4.4 5.5 80 DEER PARK 9700 6.0 6.4 94 7.7 10.4 74 HOBBS PARK 10100 3.6 7.4 49 5.1 6.2 82 LITTLE WARM 9370 4.0 5.1 78 6.0 6.4 94 SOUTH PASS 9040 5.5 7.9 70 6.9 8.8 78 ST. LAWRENCE ALT 8620 .8 3.7 22 3.0 4.5 67 TOGWOTEE PASS 9580 11.6 11.1 105 12.3 11.4 108 TOWNSEND CREEK 8700 2.4 4.2 57 4.9 5.8 84 ----- ----- Basin wide percent of average 72 88 BIGHORN BASIN BALD MTN. 9380 7.7 9.2 84 6.2 8.1 77 BEAR TRAP MEADOW 8200 2.6 2.5 104 4.5 4.4 102 BLACKWATER 9780 10.5 11.5 91 9.1 10.3 88 BONE SPRINGS DIV 9350 7.0 7.5 93 7.0 7.0 100 EVENING STAR 9200 11.0 13.1 84 13.2 12.4 106 GRAVE SPRINGS 8550 3.9 3.8 103 6.3 4.7 134 KIRWIN 9550 5.9 5.7 104 6.4 5.7 112 MARQUETTE 8760 1.1 4.8 23 4.1 5.1 80 MIDDLE POWDER 7760 5.7 5.3 108 6.0 6.6 91 OWL CREEK 8975 1.1 2.6 42 3.6 2.8 129 POWDER RIVER PASS 9480 4.5 5.0 90 6.3 5.8 109 SHELL CREEK 9580 6.4 7.0 91 6.2 6.4 97 SYLVAN LAKE 8420 7.8 10.0 78 11.3 10.5 108 SYLVAN ROAD 7120 4.5 5.9 76 8.9 9.6 93 TIMBER CREEK 7950 1.0 2.9 34 3.2 3.6 89 YOUNTS PEAK 8350 -M 7.5 * 9.7 7.8 124 ----- ----- Basin wide percent of average 83 101 SHOSHONE RIVER BLACKWATER 9780 10.5 11.5 91 9.1 10.3 88 EVENING STAR 9200 11.0 13.1 84 13.2 12.4 106 KIRWIN 9550 5.9 5.7 104 6.4 5.7 112 MARQUETTE 8760 1.1 4.8 23 4.1 5.1 80 SYLVAN LAKE 8420 7.8 10.0 78 11.3 10.5 108 SYLVAN ROAD 7120 4.5 5.9 76 8.9 9.6 93 YOUNTS PEAK 8350 -M 7.5 * 9.7 7.8 124 ----- ----- Basin wide percent of average 80 102 POWDER-TONGUE BEAR TRAP MEADOW 8200 2.6 2.5 104 4.5 4.4 102 BIG GOOSE 7990 2.9 4.1 71 5.0 4.3 116 BONE SPRINGS DIV 9350 7.0 7.5 93 7.0 7.0 100 BURGESS JUNCTION 7880 5.2 5.2 100 6.6 5.9 112 CLOUD PEAK RESERVOIR 9860 5.8 5.4 107 6.3 6.2 102 DOME LAKE 8880 5.5 5.8 95 6.2 6.6 94 GRAVE SPRINGS 8550 3.9 3.8 103 6.3 4.7 134 HANSEN SAWMILL 8360 1.9 3.1 61 3.7 4.2 88 MIDDLE POWDER 7760 5.7 5.3 108 6.0 6.6 91 POWDER RIVER PASS 9480 4.5 5.0 90 6.3 5.8 109 SUCKER CREEK 8880 5.1 4.9 104 7.5 6.4 117 TIE CREEK 6870 2.9 2.3 126 6.3 4.9 129 ----- ----- Basin wide percent of average 97 107 BELLE FOURCHE BLIND PARK 6890 3.6 3.3 109 5.5 6.0 92 COLE CANYON 5910 2.6 2.9 90 4.5 -M * NORTH RAPID CREEK 6130 3.1 3.1 100 4.4 5.1 86 ----- ----- Basin wide percent of average 100 89 UPPER N. PLATTE RIVER COLUMBINE 9160 14.4 9.3 155 17.7 10.8 164 DIVIDE PEAK 8860 7.9 8.7 91 11.3 9.5 119 ELK RIVER 8700 7.7 6.6 117 10.6 8.4 126 JOE WRIGHT 10120 12.0 9.2 130 15.0 11.4 132 NORTH FRENCH CREEK 10130 16.2 12.7 128 17.1 11.4 150 OLD BATTLE 9920 16.1 13.9 116 20.1 15.1 133 SAGE CREEK BASIN 7850 4.4 5.0 88 7.0 5.5 127 SOUTH BRUSH CREEK 8440 6.4 4.8 133 9.9 7.5 132 TOWER 10500 24.2 19.6 123 26.2 17.0 154 WEBBER SPRINGS 9250 -M 10.9 * -M 12.3 * WILLOW CREEK PASS 9540 6.2 5.3 117 7.7 6.1 126 ----- ----- Basin wide percent of average 121 139 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 11.0 10.2 108 8.7 9.6 91 CASPER MTN. 7850 5.1 6.6 77 7.8 6.9 113 DEADMAN HILL 10220 8.1 7.3 111 9.4 7.6 124 DEER PARK 9700 6.0 6.4 94 7.7 10.4 74 LAPRELE CREEK 8375 2.9 5.0 58 4.2 6.0 70 RENO HILL 8500 5.6 6.3 89 7.3 6.9 106 ROACH 9700 7.5 6.9 109 10.5 8.1 130 SAND LAKE 10050 15.5 14.2 109 15.7 11.0 143 SOUTH PASS 9040 5.5 7.9 70 6.9 8.8 78 WINDY PEAK 7900 2.1 3.4 62 4.1 5.3 77 ----- ----- Basin wide percent of average 93 102 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 5.9 3.7 159 8.8 6.8 129 DIVIDE PEAK 8860 7.9 8.7 91 11.3 9.5 119 OLD BATTLE 9920 16.1 13.9 116 20.1 15.1 133 SANDSTONE RS 8150 5.9 4.9 120 11.1 8.5 131 WHISKEY PARK 8950 13.8 10.4 133 16.7 12.5 134 ----- ----- Basin wide percent of average 119 130 UPPER GREEN RIVER BIG SANDY OPENING 9080 4.6 6.5 71 5.4 6.3 86 BLIND BULL SUM 8900 10.2 12.4 82 8.8 10.5 84 EAST RIM DIVIDE 7930 4.2 5.6 75 5.0 5.5 91 ELKHART PARK G.S. 9400 5.5 5.9 93 6.3 6.4 98 GROS VENTRE SUMMIT 8750 5.6 6.5 86 6.5 6.1 107 KENDALL R.S. 7740 5.5 6.3 87 6.8 6.5 105 LOOMIS PARK 8240 7.2 7.6 95 8.0 7.9 101 NEW FORK LAKE 8340 4.4 5.1 86 4.8 5.6 86 SNIDER BASIN 8060 6.7 6.5 103 6.8 7.5 91 SPRING CREEK DIVIDE 9000 11.3 11.8 96 11.6 12.3 94 TRIPLE PEAK 8500 10.9 11.2 97 12.5 10.6 118 ----- ----- Basin wide percent of average 89 97 LOWER GREEN RIVER HAMS FORK 7840 4.8 5.1 94 5.3 5.5 96 HEWINTA 9500 4.8 3.8 126 7.2 6.7 107 HICKERSON PARK 9100 1.1 2.7 41 3.4 4.1 83 HOLE-IN-ROCK 9150 3.6 2.5 144 4.0 3.8 105 INDIAN CREEK 9425 10.9 11.8 92 10.2 11.5 89 KELLEY R.S. 8180 -M 7.2 * -M 9.5 * STEEL CREEK PARK 10100 6.5 6.3 103 7.9 7.3 108 ----- ----- Basin wide percent of average 98 98 UPPER BEAR RIVER BUG LAKE 7950 8.0 7.7 104 8.8 8.7 101 HAYDEN FORK 9100 7.7 5.9 131 10.5 9.5 111 KELLEY R.S. 8180 -M 7.2 * -M 9.5 * LILY LAKE 9050 5.7 5.1 112 7.2 8.2 88 MONTE CRISTO 8960 11.2 10.2 110 12.3 11.5 107 SALT RIVER SUMMIT 7600 5.5 5.0 110 7.5 8.5 88 TRIAL LAKE 9960 11.6 9.8 118 12.1 10.6 114 ----- ----- Basin wide percent of average 114 102 ----------------------------------------------------------------------------- -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.