Friday, August 20, 2010

Deja Vu All Over Again: More Nashville Floods

For the second time in a little over 3 months, record rainfall has brought flooding to Nashville and other parts of middle Tennessee. Fortunately, no deaths or serious injuries have been reported, but there have been numerous road closures and water rescues as a result of the downpours.

The National Weather Service reports that Nashville received a storm total of 4.25" in less than 48 hours from Tuesday afternoon through Thursday morning, August 17-19. The 2.49" on Wednesday set a new rainfall record for August 18. Also,
The month-to-date rainfall total now stands at 6.35 inches. Since June 1, a total of 17.17 inches of rain has fallen . . .

For the year, Nashville has seen 47.50 inches of rain. Only two other times has Nashville experienced this much rain by August 19. The last time was in 1950, when 47.84 inches of rain had been recorded through August 19. Before that, we have to go all the way back to 1882, when 53.38 inches had accumulated through August 19.

Normal year-to-date rainfall at Nashville is 31.34 inches, meaning that we`re currently running at 152% of normal. In addition, normal yearly rainfall is 48.11, so the city could actually go dry for the remainder of the year and still end up very close to its normal annual rainfall.
Rainfall amounts as high as 11" or more were reported in other parts of Middle Tennessee (from NWS):
..4.5 MILES NORTH NORTHEAST OF GREEN HILL......  
11.97 INCHES

..3.5 MILES NORTH NORTHWEST OF COOKEVILLE......
11.43 INCHES

..8.7 MILES NORTH NORTHEAST OF CARTHAGE........
11.29 INCHES

..3.8 MILES NORTH NORTHEAST OF GREEN HILL......
10.47 INCHES

..2.9 MILES NORTHEAST OF HENDERSONVILLE........
10.03 INCHES

..1.2 MILES WEST SOUTHWEST OF BELINDA CITY.....
8.85 INCHES

..2.0 MILES WEST NORTHWEST OF LEBANON..........
8.72 INCHES

..0.6 MILES NORTH NORTHEAST OF LEBANON.........
8.29 INCHES

..1.1 MILES EAST OF MOUNT JULIET................
8.24 INCHES

..2.6 MILES EAST NORTHEAST OF COOKEVILLE........
8.15 INCHES

..2.3 MILES EAST SOUTHEAST OF WESTMORELAND......
7.98 INCHES

..LIVINGSTON....................................
7.94 INCHES

..1.7 MILES WEST NORTHWEST OF GALLATIN..........
7.91 INCHES

..6.3 MILES EAST OF GALLATIN....................
7.79 INCHES

..5.4 MILES NORTH NORTHEAST OF WESTMORELAND.....
7.74 INCHES

..4.2 MILES WEST NORTHWEST OF CARTHAGE..........
7.72 INCHES

..0.1 MILES WEST OF CARTHAGE....................
7.71 INCHES

..LEBANON.......................................
7.55 INCHES

..3.7 MILES WEST NORTHWEST OF LEBANON...........
7.39 INCHES

..3.9 MILES EAST OF COOKEVILLE..................
7.36 INCHES

..0.4 MILES NORTHWEST OF MOUNT JULIET...........
6.83 INCHES

..CELINA........................................
6.43 INCHES

..1 MILE WEST OF MOUNT JULIET...................
6.34 INCHES

..4.4 MILES WEST SOUTHWEST OF HERMITAGE.........
6.33 INCHES

..5.8 MILES WEST OF HARTSVILLE..................
6.18 INCHES

..2.7 MILES SOUTH SOUTHEAST OF LEBANON..........
6.02 INCHES

..COOKEVILLE....................................
6.01 INCHES

..6.1 MILES SOUTH SOUTHWEST OF MOUNT JULIET.....
5.93 INCHES

..5 MILES NORTH OF HENDERSONVILLE...............
5.29 INCHES

..WHITE HOUSE...................................
4.77 INCHES

..1.1 MILE SOUTH SOUTHWEST OF GOODLETTSVILLE....
4.56 INCHES
Images (click to enlarge): Road damaged by flash flood in Cookeville, Tenn, Associated Press via Nashville Tennessean; August 17-19 Middle Tennessee precipitation amounts from National Weather Service

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