Heat Advisory issued July 3 at 10:05PM EDT until July 4 at 8:00PM EDT by NWS Baltimore MD/Washington DC
Issue date: 2026-07-04T02:05+00:00
* 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.
Heat Advisory issued July 3 at 8:27PM EDT until July 4 at 8:00PM EDT by NWS Baltimore MD/Washington DC
Issue date: 2026-07-04T00:27+00:00
* WHAT...Heat index values of 100 to 104 expected. * WHERE...Portions of north central and western Maryland, northwest 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.
