Extreme Heat Warning

* WHAT...For the first Extreme Heat Warning, dangerously hot conditions with heat index values up to 107. For the second Extreme Heat Warning, dangerously hot conditions with heat index values up to 108 expected. For the third Extreme Heat Warning, dangerously hot conditions with heat index values up to 110 expected.

* WHERE...In Maryland, Washington and Central and Eastern Allegany Counties. In West Virginia, Berkeley, Jefferson, and Morgan Counties.

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

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