# Extreme Heat Watch: Southern Centre; Huntingdon; Mifflin; Juniata; Fulton; Franklin; Southern Clinton; Southern Lycoming; Union; Snyder; Montour; Northumberland; Columbia; Perry; Dauphin; Schuylkill; Lebanon; Cumberland; Adams; York; Lancaster — retained record

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

Canonical: https://highsignal.app/data/records/17cc8851e30bd1ac

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


source: [us-gov-api](https://highsignal.app/data/us-gov-api) (us-gov-api:noaa-weather)  published 2026-06-29 02:22 ingested 2026-06-29 10:40

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

## extract

Extreme Heat Watch — Southern Centre; Huntingdon; Mifflin; Juniata; Fulton; Franklin; Southern Clinton; Southern Lycoming; Union; Snyder; Montour; Northumberland; Columbia; Perry; Dauphin; Schuylkill; Lebanon; Cumberland; Adams; York; Lancaster
Severity: Severe. Certainty: Likely.
* WHAT...Dangerously hot conditions with heat index values between
105 and 110.

* WHERE...A portion of central Pennsylvania.

* WHEN...From Wednesday afternoon through Friday evening.

* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events.

* ADDITIONAL DETAILS...Very warm low temperatures, mainly in the low
to mid 70s at night will not offer much relief from the heat. This
combined with multiple days of near record breaking temperatures
will amplify the impacts from the heat and humidity.

## 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The historical document was shared with another weather alert and cannot be attributed to this record.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.