The National Weather Service has issued A SEVERE THUNDERSTORM WATCH for the following counties or areas: Montgomery, PA; Mercer; Morris; Sussex, NJ; Berks; Lehigh; Monroe; Northampton, PA; Warren, NJ; Bucks; Philadelphia; Carbon, PA; Hunterdon, NJ; at 2:05 PM on MAY 20, 2026 Effective until 9:05 PM. Message from ERN/CRTV. 

The National Weather Service has issued A SEVERE THUNDERSTORM WATCH for the following counties/areas: Montgomery, PA; Mercer; Morris; Sussex, NJ; Berks; Lehigh; Monroe; Northampton, PA; Warren, NJ; Bucks; Philadelphia; Carbon, PA; Hunterdon, NJ; at 2:05 PM on MAY 20, 2026 Effective until 9:05 PM. Message from ERN/KLT. 

The National Weather Service has issued A SEVERE THUNDERSTORM WATCH for the following counties or areas: Montgomery; Chester, PA; New Castle, DE; Berks, PA; at 12:05 PM on MAY 20, 2026 Effective until 7:05 PM. Message from WAHC/NAT. 

The National Weather Service has issued A SEVERE THUNDERSTORM WATCH for the following counties or areas: Middlesex, NJ; Bronx; Suffolk; Kings, NY; Morris; Bergen; Monmouth, NJ; Rockland; Richmond; New York, NY; Warren, NJ; Queens, NY; Northwest North Atlantic Ocean; Westchester, NY; Essex; Somerset, NJ; Nassau, NY; Hudson; Union, NJ; Putnam, NY; Sussex, NJ; Fairfield, CT; Passaic, NJ; Orange, NY; New York Harbor, Northwest Atlantic; Long Island Sound West of New Haven CT/Port Jefferson,NY, Northwest Atlantic; Hunterdon, NJ; at 1:05 PM on MAY 20, 2026 Effective until 8:05 PM. Message from WOLF/IP. 

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; Kent, DE; Hunterdon; Camden, NJ; Delaware Bay waters north of East Point,NJ to Slaughter Beach,DE, Northwest Atlantic; at 2:05 PM on MAY 20, 2026 Effective until 9:05 PM. Message from ALPINE. 

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; Kent, DE; Hunterdon; Camden, NJ; Delaware Bay waters north of East Point,NJ to Slaughter Beach,DE, Northwest Atlantic; at 12:05 PM on MAY 20, 2026 Effective until 7:05 PM. Message from ALPINE/. 

The National Weather Service has issued A SEVERE THUNDERSTORM WATCH for the following counties/areas: Middlesex, NJ; Bronx; Suffolk; Kings, NY; Morris; Bergen; Monmouth, NJ; Rockland; Richmond; New York, NY; Warren, NJ; Queens, NY; Northwest North Atlantic Ocean; Westchester, NY; Essex; Somerset, NJ; Nassau, NY; Hudson; Union, NJ; Putnam, NY; Sussex, NJ; Fairfield, CT; Passaic, NJ; Orange, NY; New York Harbor, Northwest Atlantic; Long Island Sound West of New Haven CT/Port Jefferson,NY, Northwest Atlantic; Hunterdon, NJ; at 2:05 PM on MAY 20, 2026 Effective until 9:05 PM. Message from DON/JKZ. 

The National Weather Service has issued A SEVERE THUNDERSTORM WATCH for the following counties or areas: Montgomery; Chester, PA; New Castle, DE; Berks, PA; at 1:05 PM on MAY 20, 2026 Effective until 8:05 PM. Message from WOLF/IP. 

The National Weather Service has issued A SEVERE THUNDERSTORM WATCH for the following counties or areas: Middlesex, NJ; Bronx; Suffolk; Kings, NY; Morris; Bergen; Monmouth, NJ; Rockland; Richmond; New York, NY; Warren, NJ; Queens, NY; Northwest North Atlantic Ocean; Westchester, NY; Essex; Somerset, NJ; Nassau, NY; Hudson; Union, NJ; Putnam, NY; Sussex, NJ; Fairfield, CT; Passaic, NJ; Orange, NY; New York Harbor, Northwest Atlantic; Long Island Sound West of New Haven CT/Port Jefferson,NY, Northwest Atlantic; Hunterdon, NJ; at 2:05 PM on MAY 20, 2026 Effective until 9:05 PM. Message from ERN/CRTV. 

The National Weather Service has issued A SEVERE THUNDERSTORM WATCH for the following counties or areas: Montgomery; Chester, PA; New Castle, DE; Berks, PA; at 2:05 PM on MAY 20, 2026 Effective until 9:05 PM. Message from ERN/KLT.