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United States Interactive Warnings, Watches, And Advisories - Freezing Fog Advisory Summary
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Freezing Fog Advisory
In effect from Thursday, Nov 20 2025 8:34 AM - Thursday, Nov 20 2025 10:00 AM
Issued by NWS Pittsburgh PA


What:
Visibility one quarter mile or less in freezing fog.

Where:
Portions of northwest, southwest, and western Pennsylvania.

When:
Until 10 AM EST this morning.

Impacts:
Low visibility could make driving conditions hazardous.

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

Areas Impacted:
Mercer
Venango
Forest
Lawrence
Butler
Clarion
Jefferson
Armstrong
Westmoreland
Westmoreland Ridges
Indiana
Higher Elevations of Indiana

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