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SMW sent by ERN/CRTV
expired an hour ago
The National Weather Service has issued A SPECIAL MARINE WARNING for the following counties or areas: Marin; San Mateo; Alameda, CA; Eastern North Pacific Ocean; Sonoma, CA; San Francisco, San Pablo, Suisun Bays and West Delta, Eastern North Pacific; San Francisco, CA; at 6:38 PM on APR 11, 2026 Effective until 7:23 PM. Message from ERN/KLT/. 
Additional alert information
Originator FIPS Codes Start Time End Time Severity
WXR 006041, 006081, 006001, 057531, 006097, 057530, 006075 4/12/2026 12:38:00 AM (UTC)
2 hours ago
4/12/2026 1:23:00 AM (UTC)
an hour ago
WARNING
SMW sent by ERN/KNA
expired an hour ago
The National Weather Service has issued A SPECIAL MARINE WARNING for the following counties or areas: Marin; San Mateo; Alameda, CA; Eastern North Pacific Ocean; Sonoma, CA; San Francisco, San Pablo, Suisun Bays and West Delta, Eastern North Pacific; San Francisco, CA; at 8:38 PM on APR 11, 2026 Effective until 9:23 PM. Message from ERN/CRTV. 
Additional alert information
Originator FIPS Codes Start Time End Time Severity
WXR 006041, 006081, 006001, 057531, 006097, 057530, 006075 4/12/2026 12:38:00 AM (UTC)
2 hours ago
4/12/2026 1:23:00 AM (UTC)
an hour ago
WARNING
SMW sent by ERN/KLT
expired 52 minutes ago
The National Weather Service has issued A SPECIAL MARINE WARNING for the following counties or areas: San Mateo; San Luis Obispo, CA; Eastern North Pacific Ocean; Eastern North Pacific Ocean; Santa Cruz; Monterey, CA; Eastern North Pacific Ocean; Eastern North Pacific Ocean; Monterey Bay, Eastern North Pacific; at 8:27 PM on APR 11, 2026 Effective until 9:57 PM. Message from ERN/KLT. 
Additional alert information
Originator FIPS Codes Start Time End Time Severity
WXR 006081, 006079, 057576, 057575, 006087, 006053, 057560, 057565, 057535 4/12/2026 12:27:00 AM (UTC)
2 hours ago
4/12/2026 1:57:00 AM (UTC)
52 minutes ago
WARNING
SMW sent by WJON/TV
expired 52 minutes ago
The National Weather Service has issued A SPECIAL MARINE WARNING for the following counties/areas: San Mateo; San Luis Obispo, CA; Eastern North Pacific Ocean; Eastern North Pacific Ocean; Santa Cruz; Monterey, CA; Eastern North Pacific Ocean; Eastern North Pacific Ocean; Monterey Bay, Eastern North Pacific; at 8:27 PM on APR 11, 2026 Effective until 9:57 PM. Message from KMTR/NWS. 
Additional alert information
Originator FIPS Codes Start Time End Time Severity
WXR 006081, 006079, 057576, 057575, 006087, 006053, 057560, 057565, 057535 4/12/2026 12:27:00 AM (UTC)
2 hours ago
4/12/2026 1:57:00 AM (UTC)
52 minutes ago
WARNING
SMW sent by ERN/CRTV
expired 52 minutes ago
The National Weather Service has issued A SPECIAL MARINE WARNING for the following counties or areas: San Mateo; San Luis Obispo, CA; Eastern North Pacific Ocean; Eastern North Pacific Ocean; Santa Cruz; Monterey, CA; Eastern North Pacific Ocean; Eastern North Pacific Ocean; Monterey Bay, Eastern North Pacific; at 6:27 PM on APR 11, 2026 Effective until 7:57 PM. Message from ERN/KLT/. 
Additional alert information
Originator FIPS Codes Start Time End Time Severity
WXR 006081, 006079, 057576, 057575, 006087, 006053, 057560, 057565, 057535 4/12/2026 12:27:00 AM (UTC)
2 hours ago
4/12/2026 1:57:00 AM (UTC)
52 minutes ago
WARNING
SMW sent by DON/JKZ
expired 52 minutes ago
The National Weather Service has issued A SPECIAL MARINE WARNING for the following counties or areas: San Mateo; San Luis Obispo, CA; Eastern North Pacific Ocean; Eastern North Pacific Ocean; Santa Cruz; Monterey, CA; Eastern North Pacific Ocean; Eastern North Pacific Ocean; Monterey Bay, Eastern North Pacific; at 8:27 PM on APR 11, 2026 Effective until 9:57 PM. Message from ERN/KLT/. 
Additional alert information
Originator FIPS Codes Start Time End Time Severity
WXR 006081, 006079, 057576, 057575, 006087, 006053, 057560, 057565, 057535 4/12/2026 12:27:00 AM (UTC)
2 hours ago
4/12/2026 1:57:00 AM (UTC)
52 minutes ago
WARNING
SMW sent by ERN/KNA
expired 52 minutes ago
The National Weather Service has issued A SPECIAL MARINE WARNING for the following counties or areas: San Mateo; San Luis Obispo, CA; Eastern North Pacific Ocean; Eastern North Pacific Ocean; Santa Cruz; Monterey, CA; Eastern North Pacific Ocean; Eastern North Pacific Ocean; Monterey Bay, Eastern North Pacific; at 8:27 PM on APR 11, 2026 Effective until 9:57 PM. Message from ERN/CRTV. 
Additional alert information
Originator FIPS Codes Start Time End Time Severity
WXR 006081, 006079, 057576, 057575, 006087, 006053, 057560, 057565, 057535 4/12/2026 12:27:00 AM (UTC)
2 hours ago
4/12/2026 1:57:00 AM (UTC)
52 minutes ago
WARNING
SMW sent by ERN/KLT
expired an hour ago
The National Weather Service has issued A SPECIAL MARINE WARNING for the following counties or areas: San Mateo; San Luis Obispo, CA; Eastern North Pacific Ocean; Eastern North Pacific Ocean; Santa Cruz; Monterey, CA; Eastern North Pacific Ocean; Eastern North Pacific Ocean; Eastern North Pacific Ocean; Eastern North Pacific Ocean; San Francisco, San Pablo, Suisun Bays and West Delta, Eastern North Pacific; Eastern North Pacific Ocean; Monterey Bay, Eastern North Pacific; Eastern North Pacific Ocean; at 8:09 PM on APR 11, 2026 Effective until 8:54 PM. Message from ERN/KLT. 
Additional alert information
Originator FIPS Codes Start Time End Time Severity
WXR 006081, 006079, 057576, 057575, 006087, 006053, 057540, 057570, 057545, 057531, 057530, 057560, 057535, 057565 4/12/2026 12:09:00 AM (UTC)
2 hours ago
4/12/2026 12:54:00 AM (UTC)
an hour ago
WARNING
SMW sent by WJON/TV
expired an hour ago
The National Weather Service has issued A SPECIAL MARINE WARNING for the following counties/areas: San Mateo; San Luis Obispo, CA; Eastern North Pacific Ocean; Eastern North Pacific Ocean; Santa Cruz; Monterey, CA; Eastern North Pacific Ocean; Eastern North Pacific Ocean; Eastern North Pacific Ocean; Eastern North Pacific Ocean; San Francisco, San Pablo, Suisun Bays and West Delta, Eastern North Pacific; Eastern North Pacific Ocean; Monterey Bay, Eastern North Pacific; Eastern North Pacific Ocean; at 8:09 PM on APR 11, 2026 Effective until 8:54 PM. Message from KMTR/NWS. 
Additional alert information
Originator FIPS Codes Start Time End Time Severity
WXR 006081, 006079, 057576, 057575, 006087, 006053, 057540, 057570, 057545, 057531, 057530, 057560, 057535, 057565 4/12/2026 12:09:00 AM (UTC)
2 hours ago
4/12/2026 12:54:00 AM (UTC)
an hour ago
WARNING
SMW sent by ERN/CRTV
expired an hour ago
The National Weather Service has issued A SPECIAL MARINE WARNING for the following counties or areas: San Mateo; San Luis Obispo, CA; Eastern North Pacific Ocean; Eastern North Pacific Ocean; Santa Cruz; Monterey, CA; Eastern North Pacific Ocean; Eastern North Pacific Ocean; Eastern North Pacific Ocean; Eastern North Pacific Ocean; San Francisco, San Pablo, Suisun Bays and West Delta, Eastern North Pacific; Eastern North Pacific Ocean; Monterey Bay, Eastern North Pacific; Eastern North Pacific Ocean; at 6:09 PM on APR 11, 2026 Effective until 6:54 PM. Message from ERN/KLT/. 
Additional alert information
Originator FIPS Codes Start Time End Time Severity
WXR 006081, 006079, 057576, 057575, 006087, 006053, 057540, 057570, 057545, 057531, 057530, 057560, 057535, 057565 4/12/2026 12:09:00 AM (UTC)
2 hours ago
4/12/2026 12:54:00 AM (UTC)
an hour ago
WARNING