Fog, Thunderstorm, Virginia

Thick Fog advisory in effect for Frederick, Shenandoah, Warren, Clarke, and Loudoun counties

A dense fog advisory is in effect until 10 a.m. for several counties in northern Virginia, including Frederick, Shenandoah, Warren, Clarke, and Loudoun.

Visibility may be reduced to less than a quarter mile at times.

Drivers are urged to slow down, use their low-beam headlights, and leave extra following distance.

Severe thunderstorm watch in effect for Fauquier, Culpeper, Madison, Rappahannock, and Orange counties

A severe thunderstorm watch is in effect until 10 p.m. for several counties in northern Virginia, including Fauquier, Culpeper, Madison, Rappahannock, and Orange.

Conditions are favorable for the development of severe thunderstorms capable of producing damaging winds, hail, and heavy rain.

Residents are urged to be prepared to take shelter if a severe thunderstorm warning is issued.