# Extreme Heat Warning: District of Columbia; Frederick; Carroll; Northern Baltimore; Cecil; Southern Baltimore; Prince Georges; Anne Arundel; Charles; St. Marys; Calvert; Northwest Montgomery; Central and Southeast Montgomery; Northwest Howard; Central and Southeast Howard; Northwest Harford; Southeast Harford; Albemarle; Greene; Madison; Rappahannock; Orange; Culpeper; Fairfax; Arlington/Falls Church/Alexandria; Stafford; Spotsylvania; King George; Northern Fauquier; Southern Fauquier; Western Loudoun; Eastern Loudoun; Northwest Prince William; Central and Southeast Prince William/Manassas/Manassas Park — retained record

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

Canonical: https://highsignal.app/data/records/b72a94c0c1508fd5

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


source: [us-gov-api](https://highsignal.app/data/us-gov-api) (us-gov-api:noaa-weather)  published 2026-07-02 03:14 ingested 2026-07-02 09:02

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

## extract

Extreme Heat Warning — District of Columbia; Frederick; Carroll; Northern Baltimore; Cecil; Southern Baltimore; Prince Georges; Anne Arundel; Charles; St. Marys; Calvert; Northwest Montgomery; Central and Southeast Montgomery; Northwest Howard; Central and Southeast Howard; Northwest Harford; Southeast Harford; Albemarle; Greene; Madison; Rappahannock; Orange; Culpeper; Fairfax; Arlington/Falls Church/Alexandria; Stafford; Spotsylvania; King George; Northern Fauquier; Southern Fauquier; Western Loudoun; Eastern Loudoun; Northwest Prince William; Central and Southeast Prince William/Manassas/Manassas Park
Severity: Severe. Certainty: Likely.
* WHAT...For the first Extreme Heat Warning, dangerously hot
conditions with heat index values up to 112 expected. For the
second Extreme Heat Warning, dangerously hot conditions with heat
index values up to 113 expected.

* WHERE...DC, and portions of central, north central, northeast,
northern, and southern Maryland, and central, northern, and
northwest Virginia.

* WHEN...For the first Extreme Heat Warning, from 10 AM this morning
to 8 PM EDT this evening. For the second Extreme Heat Warning,
from 10 AM to 8 PM EDT Friday.

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

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The historical document was shared with another weather alert and cannot be attributed to this record.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