The National Weather Service has issued A SEVERE THUNDERSTORM WATCH for the following counties or areas: Montgomery, PA; Cumberland; Salem; Mercer, NJ; New Castle, DE; Burlington; Gloucester; Monmouth, NJ; Berks; Delaware, PA; Cecil, MD; Bucks; Chester; Philadelphia, PA; Kent, DE; Hunterdon, NJ; Chesapeake Bay north of Pooles Island,MD, Northwest Atlantic; Camden, NJ; Delaware Bay waters north of East Point,NJ to Slaughter Beach,DE, Northwest Atlantic; at 3:35 PM on SEP 1, 2026 Effective until 11:05 PM. Message from DON/JKZ.