Monitor safety broadcasts sorted by operational urgency and maritime sector.
GPS Advisories & Urgent Alerts
Navigation Warnings & Hazards
Aids-to-Navigation & Regional
Satellite constellation anomalies, timing errors, and high-priority hazard notifications.
Shoaling alerts, surface firing exercises, floating obstructions, and channel restrictions.
Light buoy maintenance reports, beacon outages, and district harbor updates.
Latest Notice Bulletins
Sample dispatches for operational review. Category filters: Urgent Alerts, GPS Advisories, Regional Notices, ATON Updates.
Mid-Atlantic Signal Degradation
Buzzards Bay Buoy Displaced
Intermittent satellite timing anomalies detected across Mid-Atlantic offshore sectors. Mariners should verify positioning via secondary electronic systems.
Lighted Buoy 4 reported unlit and drifting 200 yards east of marked fairway channel. Servicing scheduled by USCG Cutter Marcus Hanna.
Date: Oct 24, 2024 | Location: Mid-Atlantic Sector | Source: USCG NAVCEN | Urgency: Critical
Date: Oct 23, 2024 | Location: Buzzards Bay Channel | Source: USCG NAVCEN | Urgency: High
Pinole Shoal Dredging Activity
St. Johns River Shoaling Report
Mechanical dredging operations active in San Francisco Bay main channel. Vessels must establish VHF-FM Channel 13 contact prior to transit.
Controlling depth reduced to 28 feet MLW near Cut 4 range lights due to sediment accumulation. Exercise caution during low tide windows.
Date: Oct 22, 2024 | Location: SF Bay District 11 | Source: USCG NAVCEN | Urgency: Standard
Date: Oct 21, 2024 | Location: Jacksonville Sector | Source: USCG NAVCEN | Urgency: Moderate
Live RSS Integration Protocol
This editorial layout displays static archive summaries for illustration. Automated real-time notice ingestion requires configuring an authorized RSS feed from the U.S. Coast Guard Navigation Center (navcen.uscg.gov).