Showers on Wednesday… Possible Weekend Frost… Tuesday Forecast Update – 4pm #alwx

Warnings_927

Good Tuesday afternoon! Clouds have steadily increased across Alabama today, ahead of our first of two cold fronts set to arrive. The first cold front will pass through Alabama on Wednesday, bringing a risk of showers and cooler air. The risk of rain for Wednesday is at 60%, but most areas will pick up less than 1/2 an inch. The higher rain totals will occur over the northern half of Alabama. While we need much more rain to catch us up, we’ll take what we can get. After the warm day today, temperatures will be on a down-hill trend for the rest of the week and over the weekend.

If you have plans outdoors this evening, rain is not expected. Clouds will continue to thicken up in our area, with temperatures only dropping to around 60 for a low. A few showers will become possible after 11pm tonight, as the lifting feature moves closer to our area. Expect a good chance of passing showers on Wednesday, but it will not rain all day and a few locations may miss the rain. Highs will struggle to reach 70 on Wednesday and Thursday; in-fact, areas north of I-20 will likely stay in the 60s for highs. Temperatures will drop into the 40s Wednesday night and Thursday night. Expect a full dose of sunshine on Thursday and Friday.

Halloween night will be chilly, with temperatures dropping into the upper 30s to lower 40s after midnight. Conditions will become rather breezy across the area as a secondary cold front pushes through.

A very deep upper air trough will dig out across the east Friday night and on Saturday, which will send the coldest air so far this season. We can expect a fairly good chance of dealing with some frost by Sunday morning. Highs will struggle to reach 60 on Saturday, with a howling north wind. Temperatures Saturday morning and Sunday morning will drop into the 30s. As the trough moves east, conditions will gradually warm up by Monday and Tuesday, with highs reaching the lower 70s.

Don’t forget about the time-change happening Saturday night and Sunday morning. The official change occurs at 2am Sunday morning, but go ahead and set your clock back 1 hour before going to bed Saturday night.

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Richard Scott
WVUA Chief Meteorologist
rscott@wvuatv.com
Twitter: Richard_wvua
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Tropical Development in Atlantic…Will Be Pushed Away From U.S. – Tuesday Update 4pm #alwx

newhurri

The map above is from the National Hurricane Center. There is a tropical system developing in the Atlantic, but a trough will deflect the storm away from the U.S.. Currently, the system has a medium chance of forming into a tropical cyclone in the next couple of days. Regardless, there will be no impact to the U.S.

A tropical wave interacting with an upper-level trough is producing a concentrated area of showers and thunderstorms a couple of hundred miles east-northeast of the northern Leeward Islands. Since upper-level winds are expected to be marginally conducive, some gradual development of this disturbance is possible while it moves west-northwestward to northwestward at 10 to 15 mph during the next few days. By the weekend, however, conditions are expected to become unfavorable for tropical cyclone formation.

* Formation chance through 48 hours…medium…30 percent.
* Formation chance through 5 days…medium…40 percent.

Source: National Hurricane Center

Caitlin Golden

WVUA Weather Intern