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 SATURDAY: DECEMBER 31 , 2005 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 9.0 8.1 111 12.9 10.3 125 COTTONWOOD CREEK 7600 11.2 9.5 118 14.4 13.3 108 GRANITE CREEK 6770 8.9 7.5 119 11.6 9.4 123 GRASSY LAKE 7265 15.6 14.5 108 20.0 17.1 117 GROS VENTRE SUMMIT 8750 6.4 6.8 94 7.3 6.3 116 LEWIS LAKE DIVIDE 7850 16.9 14.6 116 19.8 17.3 114 PHILLIPS BENCH 8200 14.3 12.4 115 15.7 13.3 118 SALT RIVER SUMMIT 7600 6.7 5.3 126 8.8 8.9 99 SNAKE RIVER STATION 6920 8.5 7.8 109 13.5 10.9 124 SPRING CREEK DIVIDE 9000 13.3 12.3 108 13.2 12.8 103 THUMB DIVIDE 7980 8.2 7.5 109 10.0 9.0 111 TOGWOTEE PASS 9580 13.0 11.5 113 13.7 11.8 116 TWO OCEAN PLATEAU 9240 18.4 13.3 138 15.0 13.3 113 WILLOW CREEK 8450 13.9 14.1 99 18.5 15.3 121 ----- ----- Basin wide percent of average 113 115 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 12.0 11.4 105 10.0 9.9 101 BLACK BEAR 8170 22.5 17.0 132 21.8 17.4 125 CANYON 8090 7.1 6.0 118 9.4 7.7 122 FISHER CREEK 9100 20.5 16.1 127 19.9 16.9 118 MADISON PLATEAU 7750 11.6 11.0 105 14.7 12.2 120 NORTHEAST ENTRANCE 7350 4.8 4.9 98 6.9 6.3 110 PARKER PEAK 9400 10.2 10.5 97 9.7 8.1 120 SYLVAN LAKE 8420 8.7 10.4 84 12.2 10.9 112 THUMB DIVIDE 7980 8.2 7.5 109 10.0 9.0 111 TWO OCEAN PLATEAU 9240 18.4 13.3 138 15.0 13.3 113 WHISKEY CREEK 6800 6.2 7.4 84 11.1 9.8 113 WHITE MILL 8700 12.3 11.0 112 12.1 12.6 96 WOLVERINE 7650 5.0 5.7 88 4.7 6.9 68 ----- ----- Basin wide percent of average 112 112 WIND RIVER BURROUGHS CREEK 8750 -M 6.6 * 9.1 7.9 115 COLD SPRINGS 9630 2.3 4.6 50 4.6 5.7 81 DEER PARK 9700 6.7 6.6 102 8.8 10.8 81 HOBBS PARK 10100 4.3 7.5 57 5.6 6.3 89 LITTLE WARM 9370 4.6 5.2 88 6.5 6.6 98 SOUTH PASS 9040 6.4 8.1 79 7.7 9.1 85 ST. LAWRENCE ALT 8620 1.0 3.8 26 3.1 4.6 67 TOGWOTEE PASS 9580 13.0 11.5 113 13.7 11.8 116 TOWNSEND CREEK 8700 2.6 4.4 59 5.2 6.0 87 ----- ----- Basin wide percent of average 79 93 BIGHORN BASIN BALD MTN. 9380 8.2 9.6 85 6.6 8.4 79 BEAR TRAP MEADOW 8200 2.9 2.6 112 4.7 4.5 104 BLACKWATER 9780 11.2 11.9 94 9.8 10.7 92 BONE SPRINGS DIV 9350 7.2 7.7 94 7.3 7.2 101 EVENING STAR 9200 12.3 13.5 91 14.4 12.8 112 GRAVE SPRINGS 8550 4.5 3.9 115 6.8 4.9 139 KIRWIN 9550 6.0 5.9 102 6.5 5.8 112 MARQUETTE 8760 1.2 5.0 24 4.1 5.3 77 MIDDLE POWDER 7760 6.6 5.4 122 6.2 6.7 93 OWL CREEK 8975 1.3 2.7 48 3.7 2.9 128 POWDER RIVER PASS 9480 4.9 5.2 94 6.5 5.9 110 SHELL CREEK 9580 6.7 7.2 93 6.4 6.6 97 SYLVAN LAKE 8420 8.7 10.4 84 12.2 10.9 112 SYLVAN ROAD 7120 4.9 6.1 80 9.3 10.0 93 TIMBER CREEK 7950 1.0 3.0 33 3.1 3.7 84 YOUNTS PEAK 8350 -M 7.8 * 10.2 8.1 126 ----- ----- Basin wide percent of average 88 103 SHOSHONE RIVER BLACKWATER 9780 11.2 11.9 94 9.8 10.7 92 EVENING STAR 9200 12.3 13.5 91 14.4 12.8 112 KIRWIN 9550 6.0 5.9 102 6.5 5.8 112 MARQUETTE 8760 1.2 5.0 24 4.1 5.3 77 SYLVAN LAKE 8420 8.7 10.4 84 12.2 10.9 112 SYLVAN ROAD 7120 4.9 6.1 80 9.3 10.0 93 YOUNTS PEAK 8350 -M 7.8 * 10.2 8.1 126 ----- ----- Basin wide percent of average 84 105 POWDER-TONGUE BEAR TRAP MEADOW 8200 2.9 2.6 112 4.7 4.5 104 BIG GOOSE 7990 3.2 4.3 74 5.3 4.5 118 BONE SPRINGS DIV 9350 7.2 7.7 94 7.3 7.2 101 BURGESS JUNCTION 7880 5.5 5.4 102 6.9 6.0 115 CLOUD PEAK RESERVOIR 9860 6.4 5.6 114 6.5 6.4 102 DOME LAKE 8880 5.6 6.0 93 6.4 6.8 94 GRAVE SPRINGS 8550 4.5 3.9 115 6.8 4.9 139 HANSEN SAWMILL 8360 1.9 3.3 58 3.7 4.3 86 MIDDLE POWDER 7760 6.6 5.4 122 6.2 6.7 93 POWDER RIVER PASS 9480 4.9 5.2 94 6.5 5.9 110 SUCKER CREEK 8880 5.6 5.1 110 8.1 6.6 123 TIE CREEK 6870 3.0 2.4 125 6.6 5.1 129 ----- ----- Basin wide percent of average 101 109 BELLE FOURCHE BLIND PARK 6890 4.2 3.4 124 6.3 6.1 103 COLE CANYON 5910 2.9 3.0 97 4.8 -M * NORTH RAPID CREEK 6130 3.7 3.2 116 4.7 5.3 89 ----- ----- Basin wide percent of average 112 96 UPPER N. PLATTE RIVER COLUMBINE 9160 15.2 9.8 155 18.5 11.3 164 DIVIDE PEAK 8860 8.8 9.1 97 12.1 9.9 122 ELK RIVER 8700 8.9 7.1 125 11.4 8.8 130 JOE WRIGHT 10120 12.5 9.6 130 15.7 11.8 133 NORTH FRENCH CREEK 10130 17.9 13.2 136 18.6 11.9 156 OLD BATTLE 9920 18.2 14.4 126 21.7 15.8 137 SAGE CREEK BASIN 7850 5.3 5.2 102 7.9 5.7 139 SOUTH BRUSH CREEK 8440 7.0 5.0 140 10.6 7.7 138 TOWER 10500 25.7 20.3 127 27.3 17.7 154 WEBBER SPRINGS 9250 -M 11.3 * -M 12.8 * WILLOW CREEK PASS 9540 6.3 5.5 115 7.9 6.3 125 ----- ----- Basin wide percent of average 127 142 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 12.4 10.6 117 10.0 10.0 100 CASPER MTN. 7850 6.0 6.8 88 8.5 7.1 120 DEADMAN HILL 10220 8.7 7.5 116 10.0 7.8 128 DEER PARK 9700 6.7 6.6 102 8.8 10.8 81 LAPRELE CREEK 8375 3.5 5.2 67 4.6 6.1 75 RENO HILL 8500 6.6 6.5 102 8.2 7.1 115 ROACH 9700 8.1 7.2 112 11.0 8.4 131 SAND LAKE 10050 17.3 14.7 118 17.3 11.5 150 SOUTH PASS 9040 6.4 8.1 79 7.7 9.1 85 WINDY PEAK 7900 2.7 3.5 77 4.4 5.4 81 ----- ----- Basin wide percent of average 102 109 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 6.4 4.0 160 9.3 7.0 133 DIVIDE PEAK 8860 8.8 9.1 97 12.1 9.9 122 OLD BATTLE 9920 18.2 14.4 126 21.7 15.8 137 SANDSTONE RS 8150 6.8 5.2 131 12.0 8.8 136 WHISKEY PARK 8950 15.5 10.9 142 18.2 13.0 140 ----- ----- Basin wide percent of average 128 134 UPPER GREEN RIVER BIG SANDY OPENING 9080 5.8 6.8 85 6.5 6.5 100 BLIND BULL SUM 8900 12.2 13.0 94 10.3 10.9 94 EAST RIM DIVIDE 7930 4.8 5.8 83 5.6 5.7 98 ELKHART PARK G.S. 9400 6.3 6.2 102 7.1 6.6 108 GROS VENTRE SUMMIT 8750 6.4 6.8 94 7.3 6.3 116 KENDALL R.S. 7740 6.6 6.6 100 7.9 6.8 116 LOOMIS PARK 8240 8.4 7.9 106 9.2 8.2 112 NEW FORK LAKE 8340 4.9 5.3 92 5.2 5.8 90 SNIDER BASIN 8060 7.7 6.8 113 7.9 7.8 101 SPRING CREEK DIVIDE 9000 13.3 12.3 108 13.2 12.8 103 TRIPLE PEAK 8500 12.9 11.7 110 14.1 11.0 128 ----- ----- Basin wide percent of average 100 107 LOWER GREEN RIVER HAMS FORK 7840 5.9 5.4 109 6.1 5.7 107 HEWINTA 9500 5.2 4.0 130 7.5 6.9 109 HICKERSON PARK 9100 1.4 2.9 48 3.5 4.2 83 HOLE-IN-ROCK 9150 3.9 2.7 144 4.3 3.9 110 INDIAN CREEK 9425 12.9 12.3 105 11.8 12.0 98 KELLEY R.S. 8180 -M 7.5 * -M 10.0 * STEEL CREEK PARK 10100 7.0 6.6 106 8.5 7.5 113 ----- ----- Basin wide percent of average 107 104 UPPER BEAR RIVER BUG LAKE 7950 9.3 8.2 113 9.8 9.1 108 HAYDEN FORK 9100 8.6 6.2 139 11.4 9.9 115 KELLEY R.S. 8180 -M 7.5 * -M 10.0 * LILY LAKE 9050 6.2 5.4 115 7.7 8.5 91 MONTE CRISTO 8960 12.5 10.8 116 13.6 11.9 114 SALT RIVER SUMMIT 7600 6.7 5.3 126 8.8 8.9 99 TRIAL LAKE 9960 13.1 10.3 127 13.5 11.1 122 ----- ----- Basin wide percent of average 122 109 ----------------------------------------------------------------------------- -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.