Clouds Return; Colder Again Monday

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Didn’t the sunshine feel good yesterday? Even with the sunshine, temperatures across Central Alabama only managed to make the upper 40s with a few spots tipping into the lower 50s. We start the day out with sunshine, but clouds will be on the increase this afternoon and into tonight. Look for afternoon highs to climb into the upper 50s. A fast moving upper level storm system along with a surface low will move by us tonight and early Monday and it will bring some moisture with it, enough so that we’ll put rain chances in for tonight with the potential to hear a little thunder. Not enough instability for a severe weather threat, but perhaps some thunder.

As the upper short wave goes by early Monday, the temperatures will begin falling. Monday is likely to be one of those days where the temperature at 12:01 am is the high for the day. I expect temperatures to struggle to stay in the 40s during the day, so look for daytime temperatures to be in the lower and middle 40s.

We should see a warmup for the middle of the week as the upper air pattern shifts slowly into a weak ridge. But another fast moving short wave passing by on Thursday promises to bring some clouds to the northern half of Alabama. That short wave will be followed by yet another one Saturday which will see some clouds and perhaps some small chance for rain. The effects of all of these short waves will be to establish a long wave trough position over the eastern US.

By the time we move out into Week 2 or voodoo country, the GFS is suggesting a major long wave trough over the eastern US that will definitely be cold if this feature comes to verify. With a trough that deep over the eastern US, we could be looking at some record cold temperatures from the Central Plains to the East Coast. But you know how voodoo country can be, that feature may be gone or dampened in the runs tomorrow. We’ll have to watch and see.

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I’ll have the latest forecast for you this evening on ABC 3340 as I fill in for Meaghan Thomas. James Spann will be back with the next Weather Xtreme Video first thing on Monday morning. Enjoy your day and Godspeed.

-Brian-

Category: Alabama's Weather