SMW sent by KNA/DAS
expired 2 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,MD, Northwest Atlantic; at 11:03 PM on AUG 22, 2026 Effective until 12:03 AM  AUG 23, 2026. Message from ALPINE. 
Additional alert information
Originator FIPS Codes Start Time End Time Severity
WXR 073536 8/23/2026 3:03:00 AM (UTC)
2 months ago
8/23/2026 4:03:00 AM (UTC)
2 months ago
WARNING