SMW sent by KNA/DAS
expired 3 months ago
The National Weather Service has issued A SPECIAL MARINE WARNING for the following counties or areas: Tidal Potomac from Indian Head to Cobb Island; Tidal Potomac from Key Bridge to Indian Head,MD, Northwest Atlantic; at 3:45 PM on JUL 21, 2026 Effective until 5:15 PM. Message from ERN/CRTV. 
Additional alert information
Originator FIPS Codes Start Time End Time Severity
WXR 073536, 073535 7/21/2026 7:45:00 PM (UTC)
3 months ago
7/21/2026 9:15:00 PM (UTC)
3 months ago
WARNING