Alberto exits, but more scattered heavy storms develop this week

Alberto is moving away from North Alabama tonight; however, some leftover showers may stick around tonight under a cloudy sky, and more tropical downpours develop in the days ahead in the soupy, tropical air mass left in Alberto’s wake.

Expect more ‘scattered’ storms on Wednesday: the kind that develop here and there soaking some neighborhoods while leaving others hot and dry with no rain at all. Any storms that develop will have a load of moisture to work with, so some big-time downpours could produce more than 1-2” of rainfall in less than one hour! We’ll get more of the same on Thursday, but Friday brings a better chance of more widespread, intense summertime storms.

Track heavy storms with WHNT.com’s Interactive Radar or swipe over to the radar feature on Live Alert 19!

Where’s my rain? Alberto did something unusual and unexpected after making landfall: more widespread, heavy rain on the west side and very little to the east. Why did that happen? A deformation zone developed on the west side of the storm creating more dynamic lift for heavy rain there.

That placed the heaviest rainfall about 50-75 miles west of where it was expected: missing the Huntsville area almost completely.

Thursday and Friday: This tropical air mass we find ourselves in serves to fuel more scattered, locally-heavy thunderstorms through the end of the week.

We expect Thursday’s storms to be somewhat hit-or-miss yet have pretty high coverage around North Alabama. Individual storms can bring intense lightning, tremendous downpours, and gusty winds. The timeline? Generally midday through about 8 PM.

Friday’s storms look more widespread and potentially stronger: high winds, frequent lightning, and more than 1-2” of rainfall. The timeline? Around 10 AM to 6 PM.

Weekend heat and storms: It’s going to be hot enough over the weekend that you’ll hope for a downpour to cool things off! Expect highs in the lower 90s with a heat index close to 100ºF on Saturday. A weak cool front entering the region may fire off a few scattered heavy thunderstorms both Saturday and Sunday, but it also serves to lower the humidity and move rain out of the region for a few days early next week!

Need some specifics about the weekend or next week? They’re always online at WHNT.com/Weather and in the “Daily Forecast” section on Live Alert 19!

-Jason
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