Extreme Heat Warning issued June 23 at 9:37AM EDT until June 23 at 9:00PM EDT by NWS Baltimore MD/Washington DC

* WHAT…For the first Extreme Heat Warning, dangerously hot
conditions with heat index values up to 110 expected. For the
second Extreme Heat Warning, dangerously hot conditions with heat
index values up to 110 expected.

* WHERE…In Maryland, Washington County. In Virginia, Clarke,
Frederick VA, Page, Shenandoah, and Warren Counties. In West
Virginia, Berkeley and Jefferson Counties.

* WHEN…For the first Extreme Heat Warning, until 9 PM EDT this
evening. For the second Extreme Heat Warning, from 11 AM to 9 PM
EDT Tuesday.

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