A cold frontal passage is accompanied by showers or thunderstorms, rising air pressure, and a sudden wind shift, generally from south or southwest to north or northwest. This phenomenon is the Florida Keys version of a sea breeze front which is common along coastal areas. Pending on both atmospheric moisture and instability, the line could contain moderate cumulus, towering cumulus and possibly cumulonimbus. These clouds frequently produce thunderstorms and heavy rain. A low-pressure weather system, or storm.
Winds rotate counter-clockwise around a cyclone.
A cyclone generally produces cloudy, rainy weather. Difference between the average daily temperature and 65 degrees. When the average temperature is less than 50, there are 0 GDDs for that day. Water which condenses out of the air onto objects near the ground. The temperature to which the air must be cooled in order to have water vapor condense out of it.