Heavy Rain Threat Shifts West A Little

Alberto weakened to a subtropical depression on the 10 p.m. advisory tonight.

The system became rather asymmetrical today about the time of landfall, with the heaviest and most extensive rain on the western side of the circulation.

That has become even more pronounced tonight.

Very heavy rain is falling across parts of Lowndes, Butler and Conecuh Counties. It is raining very heavily in Evergreen along I-65. A flash flood warning has been issued for parts of Butler, Monroe, Conecuh, Escambia, and Covington Counties.

To the east of the circulation center, which is still tracking along US-331 near Brantley, bands of heavy showers continue tonight south of a lie from Clanton to Goodwater. These showers will continue to rotate up into Central Alabama overnight.

A Flash flood watch continues for Autauga, Barbour, Bibb, Blount, Bullock, Calhoun, Chambers, Cherokee, Chilton, Clay, Cleburne, Coosa, Dallas, Elmore, Etowah, Jefferson, Lee, Lowndes, Macon, Montgomery, Perry, Pike, Randolph, Russell, Shelby, St. Clair, Talladega and Tallapoosa Counties until 7 a.m. as well.

Here is the extent of flash flood watches from National Weather Service offices in Birmingham, Huntsville, Mobile, and Tallahassee.

Winds are still strong near the core of the system. Winds are averaging 15-25 mph with gusts over 30 mph there. Winds just gusted to 30 mph at Greenville. Large trees can be felled with these winds.

The wind advisory continues for Autauga, Barbour, Bullock, Chambers, Chilton, Coosa, Dallas, Elmore, Lee, Lowndes, Macon, Montgomery, Pike, Russell and Tallapoosa Counties until 7 a.m. tomorrow.

The HRRR now depicts the heavier rain shifting west. The circulation center still passes near Birmingham early tomorrow morning, but with the lopsided system, the heavier rain will be west of I-65.

This is good news for the City of Montgomery.

It also indicates that the center will move northwest after passing Birmingham, bringing heavy rain to parts of Tuscaloosa, Lamar, Fayette, Walker and Marion Counties.

The Birmingham Metro, including Jefferson and Shelby Counties, will still pick up 1.5 to 2 inches of rain through early morning, with the amounts spreading into Northwest Alabama.

But don’t discount the tropical rains along the convective bands moving into areas east of I-65 as well. They will dump quite a bit of rain in a short period of time.

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