Dense fog advisory in South Florida: Visibility drops, especially over I-75

South Florida is under a dense fog advisory on Wednesday morning for visibility that could drop to less than half a mile, especially over Interstate 75, the National Weather Service said.

The advisory is in effect until 8 a.m. and covers Broward, Miami-Dade and Palm Beach counties, among others.

Tips from the National Weather Service for driving in fog

• Drive with lights on low beam.
• Reduce speed. Allow for plenty of room between you and other cars.
• Avoid crossing traffic unless absolutely necessary.
• Listen for traffic you cannot see.
• Use wipers and defroster as necessary for maximum vision.
• Be patient! Don’t pass lines of traffic.
• Unless absolutely necessary, don’t stop on any freeway or other heavily traveled road.
• If your car is disabled or you can’t continue, pull well onto the shoulder and turn off lights. Move away from your vehicle.
• Consider postponing your trip until the fog clears.
• Be especially cautious in and near school zones. Watch for flashing yellow or red signals on school buses. Watch for children waiting for buses in the fog.
• Also, be aware that smoke from grass and forest fires along roadways can combine with fog to rapidly drop visiblities to zero.