As if right on queue, it would appear our afternoon thunderstorm pattern has begun at the start of hurricane season and the start of Florida‘s rainy season. The storm development pattern is quite typical of Florida storms as well, sticking mainly to areas where boundary interaction is occuring.
For example, on May 31 with a ESE wind flow, the Atlantic and Gulf seabreezes collided just to the East of the I-75 corridor creating several strong storms, sporadic hail reports and even a funnel cloud sighting near Punta Gorda. These storms all diminished by 11pm.
Today was thunderstorm ping pong all across the I-75 corridor, the storms began along seabreeze collisions almost like a textbook example by starting over Pinellas Park and Oldsmar where the boundary collisions occur first typically around 11am to 1pm, then moving into the inland locations like areas from Bradenton south through Fort Meyers, and again from the Wesley Chapel area north through Inverness. Then the seabreeze stopped being responsible for new storm development and the outflow boundaries took over, hence my ping pong statement. Most of these storms created outflows which created more storms as those outflows collided and this pattern has continued all day bouncing all around the area. Storms today have generally stayed confined to the sea breeze collision areas which would be areas east of I-75 and the other hot areas over Pinellas Park and Oldsmar. You could say today was a perfect example of how boundary collisions work.
Unfortunately nearly all coastal locations have received no rainfall in the last two days. This can be attributed to weak wind flow from the ESE failing to overtake the Gulf seabreeze close enough to the shore.
However I do have one very interesting screenshot. This was taken using GRLevel3 today of a storm over SR-52 and I-75 near San Antonio. Here is a strong storm cell that had been sitting nearly stationary on this location and according to the USPLN lightning detection network, 661 lightning strikes had occurred in this 2.2 square mile grid in the last 60 minutes. Crazy!