Friday, December 16, 2011

Friday Is Here! Your Weekend Weather:

From Meteorologist Brian Davis:

Good Friday Everyone! 

**Patchy Fog Tonight**

The rain will slowly taper off to clouds and occasional drizzle over the area this afternoon. We will get into weather, but first let's take a look at some rain totals ending on Thursday (totals will be higher when we do a final total including today's rain):

Muscle Shoals .39"      Huntsville .17"       Birmingham .15"      Tuscaloosa .05" 

Today's Weather: Clouds will remain over the area today and tonight with patchy fog and drizzle. Highs around 47.  Lows will drop to near 30 by early morning Saturday. Ground will be much to warm for any frozen precipitation problems. 

Weekend Weather: Clouds will gradually clear out through the day on Saturday as we see improving weather just in time for the weekend. Here is your forecast:

Saturday, Partly Cloudy, 48/29  
Sunday, Mostly Sunny, 55/36 
Monday, Increasing Clouds, 58/45
Tuesday, 60% Chance of Rain, 61/43
Wednesday, Partly Cloudy, 51/43  

Rain Amounts: Most areas will see between .25 and .75 inches of rain over north Alabama for our final totals of Thursday and Friday. 

Here is a look at Saturdays weather map showing the cold front pushing well off to our south with a light wintry mix over east Tennessee, The Carolinas, and west Virginia.  High pressure will move in and start to improve our weather just in time for the weekend.

Here is the current Radar in motion:

Looking at the 6 AM soundings, the cold front had made it through Nashville this morning, but clearly not through Birmingham. Notice the winds have shifted in the lower levels out of the north over Nashville. Birmingham still showed winds out of the southwest

Nashville Sounding (Skew-T, Log-P):
The red line shows the temperature profile going up into the atmosphere. Notice the sharp curve to the left as you get near the surface. This shows a good drop in the temperature and a shallow layer of cold air that has moved through Nashville. Dewpoint is very close to the temperature line indicating saturation rain tendency through the lower and mid parts of the atmosphere. 

Birmingham Sounding:
Here you can see good saturation in the low and mid levels with winds still out of the southwest. No sharp drops in temperature as well. This is one way we put together weather maps. **Fact: Did you know that each day, The National Weather Service Launches Hundreds of weather balloons that give us our starting data for most weather maps you see?

Here is a look at some cameras from the west:

Columbus Mississippi:


Oxford Mississippi, 100 miles west of the Shoals:


Southaven (Just south of Memphis, TN)

A Current Look At Any Watches Or Warnings: 


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