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Tropical Storm Lee Drifting Northwards Over Louisiana, USA – September 3rd, 2011

27.0N 91.8W

September 3rd, 2011 Category: Image of the day, Tropical Storms

Tropical Storm Lee (13L) - September 3rd, 2011

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Track of TS 13L  - September 3rd, 2011 © Univ. of Wisconsin

Track of TS 13L

The center of Tropical Storm Lee is located near 29.4 north, longitude 92.1 west. Lee is drifting erratically toward the north near 4 mph (6 km/h).

A slow and possibly erratic motion toward the north or north-northwest is expected during the next 24 hours, followed by a turn toward the northeast.

On the forecast track, the center of Lee is expected to cross the Louisiana coast later this afternoon or evening, then move slowly across southern Louisiana on Sunday.

Maximum sustained winds remain near 60 mph (95 km/h) with higher gusts. Some fluctuations in strength are possible this afternoon and tonight, with gradual weakening forecast to occur by Sunday afternoon.

Tropical-storm-force winds extend outward up to 230 miles (370 km) from the center. An offshore oil rig south of Sabine pass recently reported a sustained wind of 50 mph (81 km/h) and a gust to 60 mph (90 km/h) at an elevation of 230 feet above the surface.Reports from offshore oil rigs and Louisiana State University coastal observing sites indicate the minimum central pressure is 989 mb (29.21 inches).

The tropical storm watch has been replaced with a tropical storm warning from the Alabama/Florida border eastward to Destin, Florida. A tropical storm warning is also in effect from Destin, Florida westward to Sabine Pass, Texas, including the city of New Orleans, Lake Pontchartrain and Lake Maurepas.

Hazards affecting land include rainfall, stormsurge, wind and tornadoes. Tropical Storm Lee is expected to produce total rain accumulations of 10 to 15 inches from the central gulf coast northward into the Tennessee Valley, with possible isolated maximum amounts of 20 inches through Sunday. These rains are expected to cause extensive flooding and flash flooding. A storm surge will raise water levels by as much as 3 to 5 feet above ground level along the Louisiana coast, and by as much as 1 to 3 feet above ground level along the Mississippi and Alabama coasts including Mobile Bay.

With regards to wind, tropical storm conditions are expected to continue over portions of the warning area tonight into Sunday, and possibly into Monday.A few tornadoes will be possible through tonight over portions of southern Louisiana, southern Mississippi, southern Alabama and the far western Florida Panhandle.

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