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Heat Advisory

Active

Washington; Central and Eastern Allegany; Augusta; Rockingham; Shenandoah

Starts Jul 4, 10:00 AM EDT

Ends Jul 4, 8:00 PM EDT

Issued Jul 3, 10:05 PM EDT

Severity Moderate

Urgency Expected

Certainty Likely

Details

* WHAT...Heat index values of 100 to 104 expected.

* WHERE...Portions of north central and western Maryland, northwest and western Virginia, and eastern and panhandle West Virginia.

* WHEN...From 10 AM to 8 PM EDT Saturday.

* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Hot temperatures and high humidity may cause heat illnesses.

* ADDITIONAL DETAILS...Early morning low temperatures in the around 70 combined with oppressive humidity will result in little to no overnight relief. Prolonged excessive heat may impact power, water, and transportation systems.

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Data from the National Weather Service

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