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: JANUARY 9 , 2007 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 9.3 9.4 99 13.0 11.6 112 COTTONWOOD CREEK 7600 10.2 10.9 94 13.3 14.8 90 GRANITE CREEK 6770 7.5 8.9 84 10.8 10.6 102 GRASSY LAKE 7265 15.2 16.9 90 22.2 19.3 115 GROS VENTRE SUMMIT 8750 6.6 7.6 87 7.8 7.0 111 LEWIS LAKE DIVIDE 7850 15.0 16.9 89 20.9 19.4 108 PHILLIPS BENCH 8200 11.3 14.1 80 15.5 15.0 103 SALT RIVER SUMMIT 7600 6.4 6.4 100 8.6 9.9 87 SNAKE RIVER STATION 6920 9.2 9.0 102 16.2 12.2 133 SPRING CREEK DIVIDE 9000 10.9 13.8 79 12.0 14.4 83 THUMB DIVIDE 7980 6.9 8.7 79 8.9 10.0 89 TOGWOTEE PASS 9580 11.3 13.1 86 13.0 13.2 98 TWO OCEAN PLATEAU 9240 14.4 14.9 97 13.5 14.8 91 WILLOW CREEK 8450 12.9 15.8 82 16.9 17.1 99 ----- ----- Basin wide percent of average 88 102 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 11.3 12.9 88 11.3 11.0 103 BLACK BEAR 8170 18.7 19.6 95 21.5 19.8 109 CANYON 8090 6.4 6.9 93 9.5 8.6 110 FISHER CREEK 9100 18.7 18.5 101 19.4 19.0 102 MADISON PLATEAU 7750 9.6 12.6 76 13.0 13.7 95 NORTHEAST ENTRANCE 7350 4.7 5.8 81 8.6 7.0 123 PARKER PEAK 9400 10.4 11.7 89 10.5 8.9 118 SYLVAN LAKE 8420 8.4 11.8 71 13.3 12.0 111 THUMB DIVIDE 7980 6.9 8.7 79 8.9 10.0 89 TWO OCEAN PLATEAU 9240 14.4 14.9 97 13.5 14.8 91 WHISKEY CREEK 6800 6.4 8.5 75 11.0 10.9 101 WHITE MILL 8700 11.2 12.6 89 13.0 14.2 92 WOLVERINE 7650 5.3 6.6 80 6.7 7.6 88 ----- ----- Basin wide percent of average 88 102 WIND RIVER BURROUGHS CREEK 8750 7.8 7.8 100 9.5 8.9 107 COLD SPRINGS 9630 3.4 5.0 68 4.6 6.1 75 DEER PARK 9700 5.4 8.1 67 8.5 11.8 72 HOBBS PARK 10100 4.9 8.3 59 5.1 6.9 74 LITTLE WARM 9370 4.6 6.0 77 5.9 7.3 81 SOUTH PASS 9040 6.7 9.1 74 7.9 10.0 79 ST. LAWRENCE ALT 8620 2.2 4.1 54 3.7 4.9 76 TOGWOTEE PASS 9580 11.3 13.1 86 13.0 13.2 98 TOWNSEND CREEK 8700 3.1 4.7 66 5.6 6.3 89 ----- ----- Basin wide percent of average 75 85 BIGHORN BASIN BALD MTN. 9380 10.1 10.8 94 7.8 9.4 83 BEAR TRAP MEADOW 8200 2.5 2.8 89 3.3 4.8 69 BLACKWATER 9780 11.7 13.2 89 11.7 11.7 100 BONE SPRINGS DIV 9350 9.0 8.7 103 7.6 7.9 96 EVENING STAR 9200 13.4 15.5 86 16.4 14.2 115 GRAVE SPRINGS 8550 3.0 4.5 67 3.6 5.3 68 KIRWIN 9550 5.3 6.5 82 6.6 6.3 105 MARQUETTE 8760 .7 5.2 13 4.2 5.5 76 MIDDLE POWDER 7760 4.3 6.0 72 4.7 7.2 65 OWL CREEK 8975 3.1 2.9 107 3.9 3.1 126 POWDER RIVER PASS 9480 4.5 5.8 78 5.4 6.6 82 SHELL CREEK 9580 8.1 8.0 101 6.1 7.4 82 SYLVAN LAKE 8420 8.4 11.8 71 13.3 12.0 111 SYLVAN ROAD 7120 5.3 7.0 76 10.8 10.9 99 TIMBER CREEK 7950 .8 3.2 25 3.4 3.9 87 YOUNTS PEAK 8350 6.6 9.0 73 8.6 9.0 96 ----- ----- Basin wide percent of average 80 94 SHOSHONE RIVER BLACKWATER 9780 11.7 13.2 89 11.7 11.7 100 EVENING STAR 9200 13.4 15.5 86 16.4 14.2 115 KIRWIN 9550 5.3 6.5 82 6.6 6.3 105 MARQUETTE 8760 .7 5.2 13 4.2 5.5 76 SYLVAN LAKE 8420 8.4 11.8 71 13.3 12.0 111 SYLVAN ROAD 7120 5.3 7.0 76 10.8 10.9 99 YOUNTS PEAK 8350 6.6 9.0 73 8.6 9.0 96 ----- ----- Basin wide percent of average 75 103 POWDER-TONGUE BEAR TRAP MEADOW 8200 2.5 2.8 89 3.3 4.8 69 BIG GOOSE 7990 2.7 4.9 55 4.1 4.8 85 BONE SPRINGS DIV 9350 9.0 8.7 103 7.6 7.9 96 BURGESS JUNCTION 7880 5.0 6.0 83 6.1 6.6 92 CLOUD PEAK RESERVOIR 9860 5.7 6.4 89 4.7 6.9 68 DOME LAKE 8880 4.9 6.6 74 6.0 7.4 81 GRAVE SPRINGS 8550 3.0 4.5 67 3.6 5.3 68 HANSEN SAWMILL 8360 1.2 3.5 34 2.5 4.6 54 MIDDLE POWDER 7760 4.3 6.0 72 4.7 7.2 65 POWDER RIVER PASS 9480 4.5 5.8 78 5.4 6.6 82 SUCKER CREEK 8880 5.9 5.8 102 6.9 7.2 96 TIE CREEK 6870 1.3 3.1 42 5.5 5.5 100 ----- ----- Basin wide percent of average 78 81 BELLE FOURCHE BLIND PARK 6890 1.6 4.1 39 4.7 6.6 71 COLE CANYON 5910 1.7 3.3 52 4.4 -M * NORTH RAPID CREEK 6130 2.7 3.7 73 3.9 5.6 70 ----- ----- Basin wide percent of average 54 70 UPPER N. PLATTE RIVER COLUMBINE 9160 9.0 11.6 78 11.1 12.8 87 DIVIDE PEAK 8860 10.3 10.3 100 12.2 11.0 111 ELK RIVER 8700 8.3 8.5 98 9.5 9.9 96 JOE WRIGHT 10120 11.8 10.8 109 13.8 13.0 106 NORTH FRENCH CREEK 10130 13.5 14.8 91 13.9 13.1 106 OLD BATTLE 9920 13.3 16.0 83 16.3 17.7 92 SAGE CREEK BASIN 7850 7.4 5.9 125 8.1 6.3 129 SOUTH BRUSH CREEK 8440 6.9 5.7 121 8.9 8.6 103 TOWER 10500 15.0 23.0 65 17.8 19.8 90 WEBBER SPRINGS 9250 10.3 12.6 82 13.9 14.3 97 WILLOW CREEK PASS 9540 7.2 6.1 118 7.1 6.9 103 ----- ----- Basin wide percent of average 90 99 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 10.7 12.0 89 11.1 11.2 99 CASPER MTN. 7850 4.8 7.5 64 6.6 7.6 87 DEADMAN HILL 10220 9.7 8.4 115 10.6 8.6 123 DEER PARK 9700 5.4 8.1 67 8.5 11.8 72 LAPRELE CREEK 8375 4.4 5.9 75 5.6 6.7 84 RENO HILL 8500 6.4 7.1 90 7.4 7.7 96 ROACH 9700 10.1 8.3 122 11.9 9.3 128 SAND LAKE 10050 14.1 16.2 87 13.9 12.7 109 SOUTH PASS 9040 6.7 9.1 74 7.9 10.0 79 WINDY PEAK 7900 4.0 3.7 108 5.6 5.9 95 ----- ----- Basin wide percent of average 88 97 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 3.3 5.1 65 7.2 7.8 92 DIVIDE PEAK 8860 10.3 10.3 100 12.2 11.0 111 OLD BATTLE 9920 13.3 16.0 83 16.3 17.7 92 SANDSTONE RS 8150 4.6 6.4 72 8.3 9.8 85 WHISKEY PARK 8950 9.7 13.0 75 12.8 14.8 86 ----- ----- Basin wide percent of average 81 93 UPPER GREEN RIVER BIG SANDY OPENING 9080 7.0 7.6 92 7.2 7.2 100 BLIND BULL SUM 8900 -M 14.6 * 10.7 12.2 88 EAST RIM DIVIDE 7930 5.2 6.6 79 6.7 6.4 105 ELKHART PARK G.S. 9400 5.6 6.9 81 7.5 7.3 103 GROS VENTRE SUMMIT 8750 6.6 7.6 87 7.8 7.0 111 KENDALL R.S. 7740 6.4 7.6 84 8.3 7.6 109 LOOMIS PARK 8240 7.1 8.9 80 9.5 9.2 103 NEW FORK LAKE 8340 5.3 6.0 88 6.7 6.4 105 SNIDER BASIN 8060 6.5 7.6 86 7.6 8.7 87 SPRING CREEK DIVIDE 9000 10.9 13.8 79 12.0 14.4 83 TRIPLE PEAK 8500 11.2 13.2 85 13.9 12.5 111 ----- ----- Basin wide percent of average 84 99 LOWER GREEN RIVER HAMS FORK 7840 5.2 6.2 84 5.8 6.5 89 HEWINTA 9500 4.0 4.7 85 8.3 7.6 109 HICKERSON PARK 9100 3.3 3.3 100 6.3 4.5 140 HOLE-IN-ROCK 9150 4.4 3.0 147 5.9 4.1 144 INDIAN CREEK 9425 10.8 13.9 78 10.4 13.4 78 KELLEY R.S. 8180 7.1 8.4 85 9.3 11.1 84 STEEL CREEK PARK 10100 7.2 7.3 99 8.3 8.2 101 ----- ----- Basin wide percent of average 90 98 UPPER BEAR RIVER BUG LAKE 7950 7.2 9.6 75 9.0 10.2 88 HAYDEN FORK 9100 5.7 7.2 79 12.2 10.9 112 KELLEY R.S. 8180 7.1 8.4 85 9.3 11.1 84 LILY LAKE 9050 6.6 6.2 106 9.5 9.3 102 MONTE CRISTO 8960 10.6 12.8 83 12.5 13.3 94 SALT RIVER SUMMIT 7600 6.4 6.4 100 8.6 9.9 87 TRIAL LAKE 9960 5.8 11.8 49 11.9 12.4 96 ----- ----- Basin wide percent of average 79 95 ----------------------------------------------------------------------------- -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.