SMW sent by KGRX
expired 8 months ago
A civil authority has issued A SPECIAL MARINE WARNING for the following counties or areas: Northwest North Atlantic Ocean; Tidal Potomac from Key Bridge to Indian Head,MD, Northwest Atlantic; at 3:40 AM on MAR 12, 2026 Effective until 5:40 AM. Message from DON/JKZ. 
Additional alert information
Originator FIPS Codes Start Time End Time Severity
CIV 073736, 073535 3/12/2026 8:40:00 AM (UTC)
8 months ago
3/12/2026 10:40:00 AM (UTC)
8 months ago
WARNING