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: FEBRUARY 10 , 2007 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 10.5 13.8 76 14.2 16.1 88 COTTONWOOD CREEK 7600 11.5 15.4 75 14.5 20.1 72 GRANITE CREEK 6770 8.3 13.6 61 11.5 14.9 77 GRASSY LAKE 7265 18.0 25.1 72 25.0 26.9 93 GROS VENTRE SUMMIT 8750 7.1 10.1 70 8.6 9.4 91 LEWIS LAKE DIVIDE 7850 17.6 25.2 70 23.2 27.0 86 PHILLIPS BENCH 8200 12.5 20.2 62 16.8 21.1 80 SALT RIVER SUMMIT 7600 7.4 10.2 73 9.6 13.6 71 SNAKE RIVER STATION 6920 10.7 13.9 77 17.9 16.9 106 SPRING CREEK DIVIDE 9000 12.2 18.9 65 13.2 19.6 67 THUMB DIVIDE 7980 8.6 12.9 67 10.4 13.8 75 TOGWOTEE PASS 9580 13.0 18.1 72 14.8 18.1 82 TWO OCEAN PLATEAU 9240 16.3 20.4 80 16.6 20.1 83 WILLOW CREEK 8450 14.6 21.8 67 19.0 23.5 81 ----- ----- Basin wide percent of average 70 82 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 13.1 17.5 75 12.9 15.0 86 BLACK BEAR 8170 20.7 27.9 74 23.8 28.4 84 CANYON 8090 7.4 9.7 76 10.5 11.5 91 FISHER CREEK 9100 21.7 25.6 85 22.1 26.5 83 MADISON PLATEAU 7750 11.1 17.7 63 14.7 19.0 77 NORTHEAST ENTRANCE 7350 5.9 8.4 70 9.7 9.5 102 PARKER PEAK 9400 12.5 15.8 79 12.2 11.9 103 SYLVAN LAKE 8420 10.2 16.2 63 15.2 15.8 96 THUMB DIVIDE 7980 8.6 12.9 67 10.4 13.8 75 TWO OCEAN PLATEAU 9240 16.3 20.4 80 16.6 20.1 83 WHISKEY CREEK 6800 7.4 12.1 61 12.1 15.0 81 WHITE MILL 8700 13.1 17.4 75 14.7 19.7 75 WOLVERINE 7650 6.7 9.3 72 7.5 9.8 77 ----- ----- Basin wide percent of average 73 84 WIND RIVER BURROUGHS CREEK 8750 9.0 10.9 83 10.6 12.1 88 COLD SPRINGS 9630 4.0 6.3 63 5.3 7.5 71 DEER PARK 9700 7.3 13.0 56 10.2 15.6 65 HOBBS PARK 10100 6.9 10.4 66 7.0 8.7 80 LITTLE WARM 9370 5.5 8.2 67 6.9 9.7 71 SOUTH PASS 9040 8.4 12.1 69 9.5 13.1 73 ST. LAWRENCE ALT 8620 4.0 5.1 78 5.0 6.1 82 TOGWOTEE PASS 9580 13.0 18.1 72 14.8 18.1 82 TOWNSEND CREEK 8700 4.9 6.0 82 7.4 7.8 95 ----- ----- Basin wide percent of average 70 78 BIGHORN BASIN BALD MTN. 9380 12.5 14.1 89 10.1 12.5 81 BEAR TRAP MEADOW 8200 3.5 3.8 92 4.1 5.8 71 BLACKWATER 9780 13.8 17.7 78 13.5 15.2 89 BONE SPRINGS DIV 9350 10.9 11.3 96 9.8 10.2 96 EVENING STAR 9200 15.6 21.4 73 19.2 19.0 101 GRAVE SPRINGS 8550 4.5 6.2 73 4.7 6.9 68 KIRWIN 9550 6.6 8.1 81 8.1 8.1 100 MARQUETTE 8760 1.8 6.2 29 5.1 6.6 77 MIDDLE POWDER 7760 5.8 7.8 74 5.6 8.7 64 OWL CREEK 8975 4.0 3.6 111 4.6 3.9 118 POWDER RIVER PASS 9480 5.7 7.7 74 6.7 8.8 76 SHELL CREEK 9580 9.7 10.4 93 7.4 9.8 76 SYLVAN LAKE 8420 10.2 16.2 63 15.2 15.8 96 SYLVAN ROAD 7120 6.3 9.7 65 12.0 14.0 86 TIMBER CREEK 7950 1.8 3.8 47 4.4 4.8 92 YOUNTS PEAK 8350 7.9 12.8 62 10.2 12.1 84 ----- ----- Basin wide percent of average 75 87 SHOSHONE RIVER BLACKWATER 9780 13.8 17.7 78 13.5 15.2 89 EVENING STAR 9200 15.6 21.4 73 19.2 19.0 101 KIRWIN 9550 6.6 8.1 81 8.1 8.1 100 MARQUETTE 8760 1.8 6.2 29 5.1 6.6 77 SYLVAN LAKE 8420 10.2 16.2 63 15.2 15.8 96 SYLVAN ROAD 7120 6.3 9.7 65 12.0 14.0 86 YOUNTS PEAK 8350 7.9 12.8 62 10.2 12.1 84 ----- ----- Basin wide percent of average 68 92 POWDER-TONGUE BEAR TRAP MEADOW 8200 3.5 3.8 92 4.1 5.8 71 BIG GOOSE 7990 4.2 6.5 65 5.5 6.1 90 BONE SPRINGS DIV 9350 10.9 11.3 96 9.8 10.2 96 BURGESS JUNCTION 7880 7.2 7.8 92 8.2 8.4 98 CLOUD PEAK RESERVOIR 9860 7.6 8.6 88 6.2 8.7 71 DOME LAKE 8880 6.5 8.4 77 7.3 9.2 79 GRAVE SPRINGS 8550 4.5 6.2 73 4.7 6.9 68 HANSEN SAWMILL 8360 1.9 4.5 42 3.2 5.6 57 MIDDLE POWDER 7760 5.8 7.8 74 5.6 8.7 64 POWDER RIVER PASS 9480 5.7 7.7 74 6.7 8.8 76 SUCKER CREEK 8880 8.3 7.8 106 9.2 9.3 99 TIE CREEK 6870 3.2 4.3 74 7.4 7.2 103 ----- ----- Basin wide percent of average 82 82 BELLE FOURCHE BLIND PARK 6890 2.8 5.7 49 6.0 8.3 72 COLE CANYON 5910 2.9 4.3 67 5.5 -M * NORTH RAPID CREEK 6130 3.7 5.6 66 5.0 6.7 75 ----- ----- Basin wide percent of average 60 73 UPPER N. PLATTE RIVER COLUMBINE 9160 11.3 18.3 62 13.3 18.0 74 DIVIDE PEAK 8860 12.1 13.7 88 13.9 14.8 94 ELK RIVER 8700 9.8 13.5 73 11.5 13.8 83 JOE WRIGHT 10120 13.4 14.9 90 15.5 17.5 89 NORTH FRENCH CREEK 10130 15.7 19.6 80 16.2 17.6 92 OLD BATTLE 9920 15.1 21.9 69 19.3 24.4 79 SAGE CREEK BASIN 7850 9.5 7.9 120 8.8 8.5 104 SOUTH BRUSH CREEK 8440 8.5 8.2 104 10.9 11.7 93 TOWER 10500 17.3 32.5 53 20.6 27.5 75 WEBBER SPRINGS 9250 11.9 17.6 68 16.1 19.3 83 WILLOW CREEK PASS 9540 9.2 8.1 114 8.7 9.0 97 ----- ----- Basin wide percent of average 76 85 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10220 12.8 16.5 78 13.1 15.3 86 CASPER MTN. 7850 7.4 9.7 76 8.9 9.6 93 DEADMAN HILL 10220 11.3 11.3 100 12.3 11.5 107 DEER PARK 9700 7.3 13.0 56 10.2 15.6 65 LAPRELE CREEK 8375 5.7 7.8 73 7.0 8.7 80 RENO HILL 8500 8.9 9.0 99 9.7 10.0 97 ROACH 9700 11.7 12.0 98 13.5 12.7 106 SAND LAKE 10050 16.4 21.4 77 16.4 17.0 96 SOUTH PASS 9040 8.4 12.1 69 9.5 13.1 73 WINDY PEAK 7900 5.8 5.0 116 7.3 7.5 97 ----- ----- Basin wide percent of average 81 89 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 4.8 8.4 57 8.7 10.7 81 DIVIDE PEAK 8860 12.1 13.7 88 13.9 14.8 94 OLD BATTLE 9920 15.1 21.9 69 19.3 24.4 79 SANDSTONE RS 8150 5.7 10.6 54 9.8 13.5 73 WHISKEY PARK 8950 11.1 20.2 55 15.4 20.7 74 ----- ----- Basin wide percent of average 65 80 UPPER GREEN RIVER BIG SANDY OPENING 9080 7.8 10.3 76 7.8 9.7 80 BLIND BULL SUM 8900 13.9 19.8 70 12.0 16.6 72 EAST RIM DIVIDE 7930 5.7 9.3 61 7.0 8.8 80 ELKHART PARK G.S. 9400 6.3 9.5 66 8.0 9.5 84 GROS VENTRE SUMMIT 8750 7.1 10.1 70 8.6 9.4 91 KENDALL R.S. 7740 7.1 10.6 67 8.9 10.6 84 LOOMIS PARK 8240 7.6 12.2 62 10.1 12.8 79 NEW FORK LAKE 8340 5.9 8.3 71 7.1 8.4 85 SNIDER BASIN 8060 7.2 10.6 68 8.2 11.9 69 SPRING CREEK DIVIDE 9000 12.2 18.9 65 13.2 19.6 67 TRIPLE PEAK 8500 12.5 17.9 70 15.2 17.6 86 ----- ----- Basin wide percent of average 68 79 LOWER GREEN RIVER HAMS FORK 7840 5.9 9.2 64 6.2 9.0 69 HEWINTA 9500 5.1 7.4 69 9.6 10.0 96 HICKERSON PARK 9100 4.9 4.8 102 7.6 5.5 138 HOLE-IN-ROCK 9150 5.2 4.6 113 6.9 5.1 135 INDIAN CREEK 9425 12.1 18.9 64 11.5 18.2 63 KELLEY R.S. 8180 7.9 11.7 68 10.3 15.0 69 STEEL CREEK PARK 10100 8.0 10.4 77 9.7 11.0 88 ----- ----- Basin wide percent of average 73 84 UPPER BEAR RIVER BUG LAKE 7950 6.8 14.4 47 9.9 14.0 71 HAYDEN FORK 9100 6.6 10.8 61 13.4 14.7 91 KELLEY R.S. 8180 7.9 11.7 68 10.3 15.0 69 LILY LAKE 9050 7.9 9.0 88 10.6 12.4 85 MONTE CRISTO 8960 11.8 20.3 58 13.4 18.1 74 SALT RIVER SUMMIT 7600 7.4 10.2 73 9.6 13.6 71 TRIAL LAKE 9960 8.5 17.2 49 12.4 17.3 72 ----- ----- Basin wide percent of average 61 76 ----------------------------------------------------------------------------- -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.