Alertes en vigueurGirard Estate, PA

Patchy fog is forming across portions of southeast Pennsylvania, New Jersey, and northern Delaware where it snowed earlier today. Overall, visibilities will be as low as 1 mile, but highly localized dense fog with visibilities down to one-quarter mile is possible as well. Some patchy freezing fog may also result in slick roads, especially on untreated roads. Use caution when traveling, as well as low-beam headlights, and be prepared for changes in visibility.

What: Visibility as low as one-quarter mile or less in dense fog.
Where: Portions of New Jersey and southeast Pennsylvania.
When: Until midnight EST tonight.
Impacts: Low visibility could make driving conditions hazardous.
Additional Details: Patchy freezing fog may result in localized black ice, especially on untreated roads.

If driving, slow down, use your headlights, and leave plenty of distance ahead of you.