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Rainy Night for Central Alabama

| December 19, 2014 @ 8:57 pm

The latest radar mosaic showed that rain was occurring over almost all of Central Alabama at 8:45 pm and that rain extended southwestward all the way to the Louisiana coast. This means the rain is not going to be ending any time soon.

The latest upper air sound from the Shelby County Airport was interesting. It is actually warmer at about 870 millibars, roughly 4,200 feet, than it was at the surface by a couple of degrees Centigrade. Imagine what would be happening if the freezing level which was at about 750 millibars were much lower!

Most of Central Alabama had received between a tenth of an inch and a quarter of an inch. I’ve recorded 12 hundredths of an inch so far, but the storm total precipitation estimates from the Doppler radar network showed an area lying northeast to southwest just northwest of Demopolis where as much as 1 to 1.5 inches of rain may have fallen already. Quantitative precipitation forecasts, or QPF, project rainfall amounts between about a half inch in the northwest counties like Marion County to as much as 1 inch or a little more to the southeast in Montgomery County.

The latest GFS MOS guidance suggests that the rain should be ending across Central Alabama around sunrise Saturday morning, perhaps lingering across the area east and southeast of Birmingham until 10 am or so.

Be sure to check back tomorrow for the latest Weather Xtreme Video which should be posted here by 8 am.

-Brian-

Category: Alabama's Weather

About the Author ()

Brian Peters is one of the television meteorologists at ABC3340 in Birmingham and a retired NWS Warning Coordination Meteorologist. He handles the weekend Weather Xtreme Videos and forecast discussion and is the Webmaster for the popular WeatherBrains podcast.

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