# Dense Fog Advisory: Warren; McKean; Potter; Elk; Cameron; Northern Clinton; Clearfield; Northern Centre; Southern Centre; Cambria; Blair; Huntingdon; Mifflin; Juniata; Somerset; Bedford; Fulton; Tioga; Northern Lycoming; Sullivan; Southern Clinton; Southern Lycoming; Union; Snyder; Montour; Northumberland; Columbia; Perry — retained record

> Retained us-gov-api record from us-gov-api:noaa-weather.

Canonical: https://highsignal.app/data/records/d2f7bf6bf9724bfe

[← sources](https://highsignal.app/data)


source: [us-gov-api](https://highsignal.app/data/us-gov-api) (us-gov-api:noaa-weather)  published 2026-08-21 00:33 ingested 2026-08-21 06:45

[original source ↗](http://www.weather.gov/)

## extract

Dense Fog Advisory — Warren; McKean; Potter; Elk; Cameron; Northern Clinton; Clearfield; Northern Centre; Southern Centre; Cambria; Blair; Huntingdon; Mifflin; Juniata; Somerset; Bedford; Fulton; Tioga; Northern Lycoming; Sullivan; Southern Clinton; Southern Lycoming; Union; Snyder; Montour; Northumberland; Columbia; Perry
Severity: Moderate. Certainty: Likely.
* WHAT...Visibility one quarter mile or less in dense fog, that will
be confined primarily to the valleys.

* WHERE...A portion of central Pennsylvania.

* WHEN...Until 10 AM EDT this morning.

* IMPACTS...Hazardous driving conditions due to reduced visibility.

## retained text

The historical document was shared with another weather alert and cannot be attributed to this record. The original extract is preserved above; the exact alert link was not retained.