If you were at the beach last weekend, you certainly noticed an eerie fog overhead while sunny blue skies dominated to the west. At times, temperatures dropped when the low clouds won out against the sun and spiked as sunshine temporarily burned away the fog.
Hazy skies are caused by a combination of hot air temperatures, cooler ocean waters, and higher dewpoints due to tropical moisture streaming in from the south, forecasters say. The fog develops when warmer air moves over the cooler waters, according to the National Weather Service. Adding in tropical moisture, dewpoints rise, resulting in more water vapor in the atmosphere.
