This year, south Florida does not need a tropical storm or hurricane to waterlog the landscape. The routine ebb and flow of daily thunderstorms has done just fine. And, much like Sun., Sept. 15, 2013, thunderstorms this Monday (Sept. 16, 2013) are going to bring more heavy rainfall to much of the Sunshine State. In fact, sunshine will be a hard to find commodity.
The culprit is an upper level low-pressure system that developed over the eastern Gulf of Mexico this past weekend. That low has cooler than average temperatures at mid- and high-altitudes. Cold air aloft, atop the ongoing lower level heat and humidity, spells widespread thunderstorm activity, mainly during the afternoons.
Early yesterday, thunderstorms moved ashore along the southeast coast early in the day; the thunderstorms spread quickly across the southern and central peninsula, while daytime heating added to new storm development. Widespread one-inch rainfall was observed across Collier and Lee Counties. North Naples logged 1.82 inches of rainfall, nearly all of that falling in a one-hour period in the early afternoon. Parts of Manatee County, in the Tampa area, received almost 4.50 inches of rainfall yesterday.
Already at 7:30 a.m. E.D.T., today, thunderstorms have arrived in Miami-Dade and Broward Counties. A few small storms have almost made it into southeast Collier County.
Today’s widespread thunderstorm activity will again bring locally gusty winds, heavy rainfall and frequent cloud-to-ground lightning.
Looking ahead, well, it’s more of the same until further notice.
© 2013 H. Michael Mogil