The National Weather Service has issued A SEVERE THUNDERSTORM WARNING for the following counties or areas: Montgomery, MD; Loudoun, VA; at 12:57 PM on AUG 20, 2026 Effective until 1:42 PM. Message from ERN/TSD. 

The National Weather Service has issued A SEVERE THUNDERSTORM WARNING for the following counties/areas: Franklin; Adams, PA; at 2:55 PM on AUG 20, 2026 Effective until 3:55 PM. Message from KLWX/NWS. 

The National Weather Service has issued A TORNADO WATCH for the following counties/areas: Montgomery, MD; Prince William, VA; Prince George's; Charles, MD; Stafford; Arlington; Falls Church, VA; St. Mary's, MD; Fairfax (city); King George; Manassas, VA; Calvert, MD; Fairfax (county); Alexandria; Fredericksburg; Manassas Park, VA; Tidal Potomac from Indian Head to Cobb Island,MD, Northwest Atlantic; District of Columbia, DC; Tidal Potomac from Key Bridge to Indian Head,MD, Northwest Atlantic; at 2:55 PM on AUG 20, 2026 Effective until 10:25 PM. Message from KLWX/NWS. 

The National Weather Service has issued A TORNADO WATCH for the following counties or areas: Queen Anne's; Caroline; Cecil; Baltimore (city); Dorchester, MD; Chesapeake Bay from North Beach to Drum Point,MD, Northwest Atlantic; Synopsis for North Chesapeake Bay and the Tidal Potomac, Northwest Atlantic; Chesapeake Bay from Sandy Point to North Beach,MD, Northwest Atlantic; Cumberland; Salem, NJ; Talbot, MD; New Castle, DE; Anne Arundel; Harford, MD; Sussex, DE; Kent; Baltimore; Howard, MD; Chesapeake Bay from Pooles Island to Sandy Point,MD, Northwest Atlantic; Chester, PA; Kent, DE; Delaware Bay waters south of East Point,NJ to Slaughter Beach,DE, Northwest Atlantic; Chesapeake Bay north of Pooles Island,MD, Northwest Atlantic; Delaware Bay waters north of East Point,NJ to Slaughter Beach,DE, Northwest Atlantic; at 12:55 PM on AUG 20, 2026 Effective until 8:25 PM. Message from WKDE. 

The National Weather Service has issued A TORNADO WATCH for the following counties/areas: Montgomery, PA; Cumberland; Salem, NJ; New Castle, DE; Burlington; Gloucester, NJ; Delaware, PA; Cecil, MD; Bucks; Chester; Philadelphia, PA; Kent, DE; 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 2:55 PM on AUG 20, 2026 Effective until 10:25 PM. Message from KPHI/NWS. 

The National Weather Service has issued A TORNADO WATCH for the following counties or areas: Talbot; Worcester, MD; Sussex, DE; Caroline; Wicomico; Somerset; St. Mary's; Dorchester; Calvert, MD; Chesapeake Bay from Drum Point,MD to Smith Point,VA, Northwest Atlantic; Northwest North Atlantic Ocean; Kent, DE; Northwest North Atlantic Ocean; Northwest North Atlantic Ocean; at 12:55 PM on AUG 20, 2026 Effective until 8:25 PM. Message from ERN/SHMD. 

The National Weather Service has issued A FLOOD WARNING for the following counties or areas: Noble; Monroe, OH; at 12:54 PM on AUG 20, 2026 Effective until 7:54 PM. Message from WAHC/NAT. 

The National Weather Service has issued A SPECIAL MARINE WARNING for the following counties or areas: Northwest North Atlantic Ocean; Northwest North Atlantic Ocean; Currituck Sound, Northwest Atlantic; at 12:49 PM on AUG 20, 2026 Effective until 1:49 PM. Message from TGR/SAGE. 

The National Weather Service has issued A SEVERE THUNDERSTORM WARNING for the following counties or areas: Montgomery; Frederick, MD; Loudoun, VA; at 12:46 PM on AUG 20, 2026 Effective until 1:16 PM. Message from ERN/TSD. 

The National Weather Service has issued A TORNADO WARNING for the following counties or areas: Queen Anne's; Kent, MD; at 12:43 PM on AUG 20, 2026 Effective until 1:28 PM. Message from WKDE.