Florida visible satellite imagery shows day two of a very dry air mass that descended upon the peninsula following the cold front and rain earlier in the week. Gradually more humid air will return but no precipitation is foreseen over the next several days. With that said our ‘rainy season’ regime is just around the corner so a cloud free state and dew point temperatures in the 40’s and 50’s will probably not be seen again until middle to late October.
Florida visible satellite imagery shows a large canopy top of thunderstorm anvil clouds spreading out over the western Atlantic. Beneath these clouds was a large area of rain and embedded thunderstorms. A second wave of thunderstorm clouds can be seen approaching the west coast of Florida. Note the bubbly appearance of the clouds west of Tampa. These ‘overshooting tops’ clouds represent strong updrafts penetrating through the top of the lower portion of the atmosphere and are indicative of strong to severe thunderstorms. Much drier air behind a cold front is marked by the rapid decrease in the clouds over Northwest Florida.
Florida visible satellite imagery reveals changes have occurred over the past 24 hours. Surface high pressure ridge axis has moved off to the south and east in response to a frontal boundary moving into the Southeast U.S. Over Florida note the SW-NE oriented low level cumulus lines and downwind cloud shadows. A combination of increased moisture, an unstable atmosphere, higher winds aloft (note thunderstorm anvil clouds over eastern Gulf of Mexico), and the sea breezes will lead to widespread thunderstorm development this afternoon and evening. All activity will travel SW to NW.
Florida visible satellite imagery shows a curved cloud pattern over the western Atlantic marking the E-W oriented surface ridge axis. Note the cloud lines emanating from the Bahamas. Over Florida note the downwind lake and river cloud shadows indicating the SSE winds across the state. A few showers and thunderstorms will develop later today along the east and west coast sea breezes as both penetrate towards the center of the peninsula. A late season cold front will give rise to more widespread showers and thunderstorms on Tuesday and Wednesday.