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for South Central and Southeast Wisconsin
Dense Fog
Hazard Map Threat Levels Safety & Impact

Dense Fog Safety Rules

If your car is equipped with fog lamps, turn them on.

Slow down before you enter a patch of fog.
Be sure that you can stop within the distance that you can see.
Turn on your wipers and defroster to remove moisture from the windshield.
Use your low-beam head-lamps whether it is day or night. (High beams reflect off the fog and can impede visibility.)
Use the right edge of the road or painted road markings as a guide.
Watch out for slow-moving and parked vehicles.
Do not change lanes or pass other vehicles unless absolutely necessary.
If you must pull off the road, signal first, then slowly and carefully pull off as far as possible.
After pulling off the road, turn on your hazard flashers.
Be on the lookout for sudden changes in visibility. The patchy nature of fog will lower visibility quickly especially if you are driving fast. Visibility may be lower near rivers and lakes. Be especially cautious in school zones and watch for children and the flashing lights of school busses.

  • NOAA's National Weather Service
  • Milwaukee/Sullivan, WI Weather Forecast Office
  • N3533 Hardscrabble Road
  • Dousman, WI 53118
  • 414-744-8000
  • Page Author: MKX Webmaster
  • Web Master's E-mail: w-mkx.webmaster@noaa.gov
  • Page last modified: 2-Nov-2005 10:23 PM UTC
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