Do you hate it when we say "there's not a huge chance of rain, but it's not impossible." Well...unfortunately, I'll have to say that.
Welcome to summer in Atlanta. There is no major weather system impacting us over the next seven days, which is typical for summer. However, we'll keep plenty of heat and moisture in place.
It's typically hot enough in the summer to produce those late afternoon "pop up" storms if enough moisture is available, which is why we can't completely remove the rain chances, despite no major systems impacting us. Fortunately, the general timing of those pop up storms are easy to predict, as they typically happen during the peak-heating hours of the day, which is late afternoon through sunset.
To complicate matters this week, is the storm track. We're in what we call a "northwest flow" (see image) which is when our upper-level winds (which drive weather systems) are coming in from the northwest. This allows any weather disturbances moving across the U.S. to dive right into north Georgia.
I mentioned above that no significant storm system, or disturbance expected in north Georgia this week, however, any smaller system that moves through the storm track will hit us, and these smaller systems can be very subtle and difficult to track. That's another reason why we're keeping at least at 30% chance of afternoon storms in place.
We've had a small, "subtle" disturbance move through the flow and into north Georgia each day so far this week. It looks like the next relatively larger disturbance will move down into north Georgia by the end of the weekend, which is why your rain chances are higher on Sunday.
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