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SMW sent by ERN/KNA
expired 2 hours ago
The National Weather Service has issued A SPECIAL MARINE WARNING for the following counties or areas: Synopsis for North Chesapeake Bay and the Tidal Potomac, Northwest Atlantic; at 11:49 PM on MAR 20, 2026 Effective until 1:49 AM  MAR 21, 2026. Message from ALPINE. 
Additional alert information
Originator FIPS Codes Start Time End Time Severity
WXR 073500 3/21/2026 3:49:00 AM (UTC)
4 hours ago
3/21/2026 5:49:00 AM (UTC)
2 hours ago
WARNING
SMW sent by ERN/KLT
expired 2 hours ago
The National Weather Service has issued A SPECIAL MARINE WARNING for the following counties or areas: Synopsis for North Chesapeake Bay and the Tidal Potomac, Northwest Atlantic; at 11:49 PM on MAR 20, 2026 Effective until 1:49 AM  MAR 21, 2026. Message from ERN/KLT. 
Additional alert information
Originator FIPS Codes Start Time End Time Severity
WXR 073500 3/21/2026 3:49:00 AM (UTC)
4 hours ago
3/21/2026 5:49:00 AM (UTC)
2 hours ago
WARNING
SMW sent by ERN/CRTV
expired 2 hours ago
The National Weather Service has issued A SPECIAL MARINE WARNING for the following counties or areas: Synopsis for North Chesapeake Bay and the Tidal Potomac, Northwest Atlantic; at 9:49 PM on MAR 20, 2026 Effective until 11:49 PM. Message from ALPINE/. 
Additional alert information
Originator FIPS Codes Start Time End Time Severity
WXR 073500 3/21/2026 3:49:00 AM (UTC)
4 hours ago
3/21/2026 5:49:00 AM (UTC)
2 hours ago
WARNING
SMW sent by DON/JKZ
expired 2 hours ago
The National Weather Service has issued A SPECIAL MARINE WARNING for the following counties or areas: Synopsis for North Chesapeake Bay and the Tidal Potomac, Northwest Atlantic; at 11:49 PM on MAR 20, 2026 Effective until 1:49 AM  MAR 21, 2026. Message from ALPINE/. 
Additional alert information
Originator FIPS Codes Start Time End Time Severity
WXR 073500 3/21/2026 3:49:00 AM (UTC)
4 hours ago
3/21/2026 5:49:00 AM (UTC)
2 hours ago
WARNING
FFW sent by KGRX
expired an hour ago
The National Weather Service has issued A FLASH FLOOD WARNING for the following counties or areas: Honolulu, HI; at 10:47 PM on MAR 20, 2026 Effective until 2:17 AM  MAR 21, 2026. Message from PHFO/NWS. 
Additional alert information
Originator FIPS Codes Start Time End Time Severity
WXR 015003 3/21/2026 3:47:00 AM (UTC)
4 hours ago
3/21/2026 7:17:00 AM (UTC)
an hour ago
WARNING
FFW sent by WJON/TV
expired an hour ago
The National Weather Service has issued A FLASH FLOOD WARNING for the following counties/areas: Honolulu, HI; at 11:47 PM on MAR 20, 2026 Effective until 3:17 AM  MAR 21, 2026. Message from HPR. 
Additional alert information
Originator FIPS Codes Start Time End Time Severity
WXR 015003 3/21/2026 3:47:00 AM (UTC)
4 hours ago
3/21/2026 7:17:00 AM (UTC)
an hour ago
WARNING
FFW sent by ERN/KLT
expired an hour ago
The National Weather Service has issued A FLASH FLOOD WARNING for the following counties or areas: Honolulu, HI; at 11:47 PM on MAR 20, 2026 Effective until 3:17 AM  MAR 21, 2026. Message from ERN/KLT. 
Additional alert information
Originator FIPS Codes Start Time End Time Severity
WXR 015003 3/21/2026 3:47:00 AM (UTC)
4 hours ago
3/21/2026 7:17:00 AM (UTC)
an hour ago
WARNING
FFW sent by ERN/CRTV
expired an hour ago
The National Weather Service has issued A FLASH FLOOD WARNING for the following counties or areas: Honolulu, HI; at 9:47 PM on MAR 20, 2026 Effective until 1:17 AM  MAR 21, 2026. Message from KGRX/. 
Additional alert information
Originator FIPS Codes Start Time End Time Severity
WXR 015003 3/21/2026 3:47:00 AM (UTC)
4 hours ago
3/21/2026 7:17:00 AM (UTC)
an hour ago
WARNING
FFW sent by WOLF/IP
expired an hour ago
The National Weather Service has issued A FLASH FLOOD WARNING for the following counties or areas: Honolulu, HI; at 10:47 PM on MAR 20, 2026 Effective until 2:17 AM  MAR 21, 2026. Message from WOLF/IP. 
Additional alert information
Originator FIPS Codes Start Time End Time Severity
WXR 015003 3/21/2026 3:47:00 AM (UTC)
4 hours ago
3/21/2026 7:17:00 AM (UTC)
an hour ago
WARNING
FFW sent by ERN/KNA
expired an hour ago
The National Weather Service has issued A FLASH FLOOD WARNING for the following counties or areas: Honolulu, HI; at 11:47 PM on MAR 20, 2026 Effective until 3:17 AM  MAR 21, 2026. Message from ERN/CRTV. 
Additional alert information
Originator FIPS Codes Start Time End Time Severity
WXR 015003 3/21/2026 3:47:00 AM (UTC)
4 hours ago
3/21/2026 7:17:00 AM (UTC)
an hour ago
WARNING