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; Bucks; Chester; Philadelphia, PA; Hunterdon; Camden, NJ; Delaware Bay waters north of East Point,NJ to Slaughter Beach,DE, Northwest Atlantic; at 10:50 AM on JUL 28, 2026 Effective until 6:20 PM. Message from ALPINE.