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 SUNDAY: JANUARY 7 , 2007 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 8.5 9.1 93 12.2 11.3 108 COTTONWOOD CREEK 7600 9.9 10.6 93 13.0 14.5 90 GRANITE CREEK 6770 7.4 8.5 87 10.6 10.3 103 GRASSY LAKE 7265 14.2 16.3 87 21.1 18.8 112 GROS VENTRE SUMMIT 8750 6.5 7.5 87 7.8 6.8 115 LEWIS LAKE DIVIDE 7850 14.1 16.4 86 19.8 18.9 105 PHILLIPS BENCH 8200 10.8 13.8 78 15.0 14.7 102 SALT RIVER SUMMIT 7600 6.1 6.1 100 8.3 9.7 86 SNAKE RIVER STATION 6920 8.5 8.8 97 15.6 11.9 131 SPRING CREEK DIVIDE 9000 10.5 13.4 78 11.5 14.0 82 THUMB DIVIDE 7980 6.4 8.4 76 8.5 9.8 87 TOGWOTEE PASS 9580 10.6 12.7 83 12.2 12.9 95 TWO OCEAN PLATEAU 9240 13.8 14.6 95 13.2 14.5 91 WILLOW CREEK 8450 12.5 15.5 81 16.5 16.7 99 ----- ----- Basin wide percent of average 86 100 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 10.5 12.5 84 10.7 10.8 99 BLACK BEAR 8170 18.0 19.0 95 21.4 19.2 111 CANYON 8090 6.1 6.7 91 9.1 8.4 108 FISHER CREEK 9100 17.6 18.0 98 18.5 18.6 99 MADISON PLATEAU 7750 9.3 12.3 76 12.7 13.4 95 NORTHEAST ENTRANCE 7350 4.2 5.6 75 8.4 6.9 122 PARKER PEAK 9400 10.0 11.5 87 10.0 8.8 114 SYLVAN LAKE 8420 7.8 11.4 68 12.8 11.7 109 THUMB DIVIDE 7980 6.4 8.4 76 8.5 9.8 87 TWO OCEAN PLATEAU 9240 13.8 14.6 95 13.2 14.5 91 WHISKEY CREEK 6800 6.3 8.2 77 10.7 10.7 100 WHITE MILL 8700 10.7 12.3 87 12.5 13.9 90 WOLVERINE 7650 5.6 6.4 87 6.2 7.4 84 ----- ----- Basin wide percent of average 86 100 WIND RIVER BURROUGHS CREEK 8750 7.5 7.5 100 9.2 8.6 107 COLD SPRINGS 9630 3.2 4.9 65 4.5 6.0 75 DEER PARK 9700 5.3 7.7 69 8.4 11.6 72 HOBBS PARK 10100 4.9 8.1 60 4.9 6.7 73 LITTLE WARM 9370 4.5 5.9 76 5.6 7.2 78 SOUTH PASS 9040 6.6 8.8 75 7.9 9.8 81 ST. LAWRENCE ALT 8620 2.1 4.0 52 3.6 4.8 75 TOGWOTEE PASS 9580 10.6 12.7 83 12.2 12.9 95 TOWNSEND CREEK 8700 2.9 4.7 62 5.4 6.3 86 ----- ----- Basin wide percent of average 74 83 BIGHORN BASIN BALD MTN. 9380 9.8 10.6 92 7.5 9.1 82 BEAR TRAP MEADOW 8200 2.5 2.8 89 3.2 4.7 68 BLACKWATER 9780 11.2 12.9 87 11.1 11.5 97 BONE SPRINGS DIV 9350 8.9 8.4 106 7.3 7.7 95 EVENING STAR 9200 12.2 15.0 81 15.4 13.9 111 GRAVE SPRINGS 8550 3.0 4.4 68 3.6 5.2 69 KIRWIN 9550 5.2 6.3 83 6.2 6.2 100 MARQUETTE 8760 -M 5.2 * 3.9 5.5 71 MIDDLE POWDER 7760 4.3 5.8 74 4.7 7.1 66 OWL CREEK 8975 3.0 2.8 107 3.9 3.1 126 POWDER RIVER PASS 9480 4.2 5.7 74 5.0 6.4 78 SHELL CREEK 9580 7.9 7.9 100 5.9 7.2 82 SYLVAN LAKE 8420 7.8 11.4 68 12.8 11.7 109 SYLVAN ROAD 7120 4.9 6.8 72 10.4 10.7 97 TIMBER CREEK 7950 .8 3.1 26 3.6 3.9 92 YOUNTS PEAK 8350 6.1 8.7 70 8.0 8.8 91 ----- ----- Basin wide percent of average 82 92 SHOSHONE RIVER BLACKWATER 9780 11.2 12.9 87 11.1 11.5 97 EVENING STAR 9200 12.2 15.0 81 15.4 13.9 111 KIRWIN 9550 5.2 6.3 83 6.2 6.2 100 MARQUETTE 8760 -M 5.2 * 3.9 5.5 71 SYLVAN LAKE 8420 7.8 11.4 68 12.8 11.7 109 SYLVAN ROAD 7120 4.9 6.8 72 10.4 10.7 97 YOUNTS PEAK 8350 6.1 8.7 70 8.0 8.8 91 ----- ----- Basin wide percent of average 78 99 POWDER-TONGUE BEAR TRAP MEADOW 8200 2.5 2.8 89 3.2 4.7 68 BIG GOOSE 7990 2.6 4.7 55 4.0 4.7 85 BONE SPRINGS DIV 9350 8.9 8.4 106 7.3 7.7 95 BURGESS JUNCTION 7880 4.8 5.9 81 6.1 6.4 95 CLOUD PEAK RESERVOIR 9860 5.0 6.2 81 4.2 6.7 63 DOME LAKE 8880 4.6 6.5 71 5.8 7.2 81 GRAVE SPRINGS 8550 3.0 4.4 68 3.6 5.2 69 HANSEN SAWMILL 8360 1.2 3.5 34 2.4 4.5 53 MIDDLE POWDER 7760 4.3 5.8 74 4.7 7.1 66 POWDER RIVER PASS 9480 4.2 5.7 74 5.0 6.4 78 SUCKER CREEK 8880 5.6 5.6 100 6.7 7.1 94 TIE CREEK 6870 1.3 2.9 45 5.4 5.4 100 ----- ----- Basin wide percent of average 77 80 BELLE FOURCHE BLIND PARK 6890 1.1 3.9 28 4.1 6.5 63 COLE CANYON 5910 1.3 3.2 41 4.0 -M * NORTH RAPID CREEK 6130 2.3 3.6 64 3.6 5.5 65 ----- ----- Basin wide percent of average 44 64 UPPER N. PLATTE RIVER COLUMBINE 9160 8.7 11.2 78 10.8 12.5 86 DIVIDE PEAK 8860 10.3 10.0 103 11.8 10.7 110 ELK RIVER 8700 8.2 8.2 100 9.3 9.6 97 JOE WRIGHT 10120 11.9 10.5 113 13.3 12.7 105 NORTH FRENCH CREEK 10130 13.3 14.4 92 13.7 12.9 106 OLD BATTLE 9920 13.6 15.6 87 15.7 17.2 91 SAGE CREEK BASIN 7850 7.3 5.8 126 8.1 6.2 131 SOUTH BRUSH CREEK 8440 6.9 5.5 125 8.6 8.4 102 TOWER 10500 15.1 22.4 67 17.3 19.4 89 WEBBER SPRINGS 9250 10.3 12.4 83 13.7 14.0 98 WILLOW CREEK PASS 9540 7.2 5.9 122 7.0 6.8 103 ----- ----- Basin wide percent of average 93 99 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 10.3 11.7 88 10.9 10.9 100 CASPER MTN. 7850 4.7 7.3 64 6.5 7.5 87 DEADMAN HILL 10220 9.7 8.2 118 10.5 8.4 125 DEER PARK 9700 5.3 7.7 69 8.4 11.6 72 LAPRELE CREEK 8375 4.3 5.7 75 5.5 6.6 83 RENO HILL 8500 6.3 7.0 90 7.3 7.6 96 ROACH 9700 10.0 8.0 125 11.7 9.1 129 SAND LAKE 10050 13.7 15.9 86 13.5 12.4 109 SOUTH PASS 9040 6.6 8.8 75 7.9 9.8 81 WINDY PEAK 7900 3.9 3.7 105 5.4 5.8 93 ----- ----- Basin wide percent of average 89 98 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 3.2 4.8 67 7.1 7.6 93 DIVIDE PEAK 8860 10.3 10.0 103 11.8 10.7 110 OLD BATTLE 9920 13.6 15.6 87 15.7 17.2 91 SANDSTONE RS 8150 4.5 6.2 73 8.3 9.6 86 WHISKEY PARK 8950 9.6 12.5 77 12.6 14.4 88 ----- ----- Basin wide percent of average 84 93 UPPER GREEN RIVER BIG SANDY OPENING 9080 6.7 7.4 91 6.8 7.1 96 BLIND BULL SUM 8900 -M 14.3 * 10.3 11.9 87 EAST RIM DIVIDE 7930 4.7 6.4 73 6.4 6.2 103 ELKHART PARK G.S. 9400 5.2 6.8 76 7.1 7.1 100 GROS VENTRE SUMMIT 8750 6.5 7.5 87 7.8 6.8 115 KENDALL R.S. 7740 6.3 7.3 86 8.1 7.4 109 LOOMIS PARK 8240 6.9 8.6 80 9.2 9.0 102 NEW FORK LAKE 8340 5.2 5.8 90 6.3 6.3 100 SNIDER BASIN 8060 6.1 7.5 81 7.4 8.5 87 SPRING CREEK DIVIDE 9000 10.5 13.4 78 11.5 14.0 82 TRIPLE PEAK 8500 10.5 12.8 82 13.2 12.2 108 ----- ----- Basin wide percent of average 82 98 LOWER GREEN RIVER HAMS FORK 7840 5.0 6.1 82 5.7 6.3 90 HEWINTA 9500 4.1 4.6 89 8.2 7.4 111 HICKERSON PARK 9100 3.4 3.2 106 6.4 4.4 145 HOLE-IN-ROCK 9150 4.3 3.0 143 5.8 4.1 141 INDIAN CREEK 9425 10.6 13.5 79 10.2 13.1 78 KELLEY R.S. 8180 6.9 8.2 84 9.1 10.8 84 STEEL CREEK PARK 10100 7.0 7.2 97 8.2 8.1 101 ----- ----- Basin wide percent of average 90 99 UPPER BEAR RIVER BUG LAKE 7950 7.0 9.2 76 8.8 9.9 89 HAYDEN FORK 9100 5.7 7.0 81 11.9 10.7 111 KELLEY R.S. 8180 6.9 8.2 84 9.1 10.8 84 LILY LAKE 9050 6.5 6.0 108 9.4 9.2 102 MONTE CRISTO 8960 10.7 12.4 86 12.3 13.0 95 SALT RIVER SUMMIT 7600 6.1 6.1 100 8.3 9.7 86 TRIAL LAKE 9960 5.9 11.5 51 11.7 12.1 97 ----- ----- Basin wide percent of average 81 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.