Great satellite photo of the sea breeze front today. Heating over the land is causing clouds to form, but where a maritime influence sets in, the air is colder, inhibiting cloud formation. Northerly winds along Long Island's north shore are bringing in colder air from Long Island Sound (the water temperature is in the upper 40s). Along the south shore, a sea breeze has developed, vacuuming in colder air from the Atlantic, also inhibiting cloud formation.

Where these northerly and these southerly winds collide, air is rising, forming a distinct line of clouds right across the Long Island Expressway.

You can also see the effect of the sea breeze along the New Jersey coast, where it is clear up to around 5 miles inland.


Photo from Weather Underground