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SMW sent by WJON/TV
expires 36 minutes from now
The National Weather Service has issued A SPECIAL MARINE WARNING for the following counties/areas: Northwest North Atlantic Ocean; Northwest North Atlantic Ocean; at 10:18 PM on OCT 16, 2026 Effective until 11:48 PM. Message from TGR/SAGE. 
Additional alert information
Originator FIPS Codes Start Time End Time Severity
WXR 073634, 073632 10/17/2026 2:18:00 AM (UTC)
53 minutes ago
10/17/2026 3:48:00 AM (UTC)
36 minutes from now
WARNING
SMW sent by KNA/DAS
expires 36 minutes from now
The National Weather Service has issued A SPECIAL MARINE WARNING for the following counties or areas: Northwest North Atlantic Ocean; Northwest North Atlantic Ocean; at 10:18 PM on OCT 16, 2026 Effective until 11:48 PM. Message from ERN/CRTV. 
Additional alert information
Originator FIPS Codes Start Time End Time Severity
WXR 073634, 073632 10/17/2026 2:18:00 AM (UTC)
53 minutes ago
10/17/2026 3:48:00 AM (UTC)
36 minutes from now
WARNING
SMW sent by ERN/KLT
expires 36 minutes from now
The National Weather Service has issued A SPECIAL MARINE WARNING for the following counties or areas: Northwest North Atlantic Ocean; Northwest North Atlantic Ocean; at 10:18 PM on OCT 16, 2026 Effective until 11:48 PM. Message from ERN/KLT. 
Additional alert information
Originator FIPS Codes Start Time End Time Severity
WXR 073634, 073632 10/17/2026 2:18:00 AM (UTC)
53 minutes ago
10/17/2026 3:48:00 AM (UTC)
36 minutes from now
WARNING
SMW sent by ERN/CRTV
expires 36 minutes from now
The National Weather Service has issued A SPECIAL MARINE WARNING for the following counties or areas: Northwest North Atlantic Ocean; Northwest North Atlantic Ocean; at 8:18 PM on OCT 16, 2026 Effective until 9:48 PM. Message from TGR/SAGE. 
Additional alert information
Originator FIPS Codes Start Time End Time Severity
WXR 073634, 073632 10/17/2026 2:18:00 AM (UTC)
53 minutes ago
10/17/2026 3:48:00 AM (UTC)
36 minutes from now
WARNING
SMW sent by DON/JKZ
expires 36 minutes from now
The National Weather Service has issued A SPECIAL MARINE WARNING for the following counties or areas: Northwest North Atlantic Ocean; Northwest North Atlantic Ocean; at 10:18 PM on OCT 16, 2026 Effective until 11:48 PM. Message from TGR/SAGE. 
Additional alert information
Originator FIPS Codes Start Time End Time Severity
WXR 073634, 073632 10/17/2026 2:18:00 AM (UTC)
53 minutes ago
10/17/2026 3:48:00 AM (UTC)
36 minutes from now
WARNING
SMW sent by ERN/KLT
expired 30 minutes 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 9:11 PM on OCT 16, 2026 Effective until 10:41 PM. Message from ERN/KLT. 
Additional alert information
Originator FIPS Codes Start Time End Time Severity
WXR 073536 10/17/2026 1:11:00 AM (UTC)
2 hours ago
10/17/2026 2:41:00 AM (UTC)
30 minutes ago
WARNING
SMW sent by WJON/TV
expired 30 minutes ago
The National Weather Service has issued A SPECIAL MARINE WARNING for the following counties/areas: Tidal Potomac from Indian Head to Cobb Island,MD, Northwest Atlantic; at 9:11 PM on OCT 16, 2026 Effective until 10:41 PM. Message from ERN/TSD. 
Additional alert information
Originator FIPS Codes Start Time End Time Severity
WXR 073536 10/17/2026 1:11:00 AM (UTC)
2 hours ago
10/17/2026 2:41:00 AM (UTC)
30 minutes ago
WARNING
SMW sent by ERN/CRTV
expired 30 minutes 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 7:11 PM on OCT 16, 2026 Effective until 8:41 PM. Message from ERN/TSD. 
Additional alert information
Originator FIPS Codes Start Time End Time Severity
WXR 073536 10/17/2026 1:11:00 AM (UTC)
2 hours ago
10/17/2026 2:41:00 AM (UTC)
30 minutes ago
WARNING
SMW sent by DON/JKZ
expired 30 minutes 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 9:11 PM on OCT 16, 2026 Effective until 10:41 PM. Message from ERN/TSD. 
Additional alert information
Originator FIPS Codes Start Time End Time Severity
WXR 073536 10/17/2026 1:11:00 AM (UTC)
2 hours ago
10/17/2026 2:41:00 AM (UTC)
30 minutes ago
WARNING
SMW sent by KNA/DAS
expired 30 minutes 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 9:11 PM on OCT 16, 2026 Effective until 10:41 PM. Message from ERN/CRTV. 
Additional alert information
Originator FIPS Codes Start Time End Time Severity
WXR 073536 10/17/2026 1:11:00 AM (UTC)
2 hours ago
10/17/2026 2:41:00 AM (UTC)
30 minutes ago
WARNING