The weak cool front that moved through the First Coast Sat. triggering showers & isolated t'storms stalled Sunday over Central/S. Fl. & is now slowly moving back to the north. Upper level warm air being forced up over the cooler at the surface combined with upper level disturbances will be a recipe for scattered showers through tonight along with a few embedded thunderstorms.
The front will hang up stationary from I-10 to near the Fl./Ga. border Tue. as a strong upper level disturbance moves into the Eastern U.S. A weak surface low will develop along the front, & this combination should be good for some decent rain Tue.-Tue. night. There will again be a few t'storms, but I doubt there will be enough instability for significant storms.
As the disturbance lifts away, & the surface low departs to the northeast, the front will become a strong cold front & accelerate to the south leaving behind clearing skies Wed. with a breezy north wind & cooler temps. The much cooler air arrives overnight Wed. & will continue for the rest of the week with highs only in the low to mid 70s Thu.-Fri. & lows that will dip into the 40s inland....50s at the beaches. Finally a nice, true taste of autumn.
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