Patchy Dense Fog has developed with visibility of 1/4 mile or less
in some areas. As low clouds and rain develop later this evening, the
fog may diminish somewhat, but until then, patchy dense fog is
expected.
Motorists are urged to drive with extreme caution, as visibility will
vary significantly given the patchy nature of the fog. Use low
beams, reduce driving speed, and allow for plenty of room between you
and other cars.