It is very foggy. You should slow down and:

Use your low beams when driving in fog, snow, rain, or mist. Light from high beams will reflect off of precipitation, causing a glare and making it even more difficult to see. Some vehicles are equipped with fog lights that should be used in addition to low beam headlights.

• Turn on your emergency flashers.
• Turn your lights to their high beam setting.
• Turn your lights to their low beam setting.