Worldwide: Notice to All Mariners Who Use GPS Equipment

Several National Weather Service stations have stopped working due to a GPS roll-over event. Background information on why this is taking place is attached in the worldwide notice to mariners. Please click on the images below to view documents with more information.

Civil GPS users are encouraged to report disruptions or anomalies to the U.S. Coast Guard Navigation Center at their webpage: https://navcen.uscg.gov/pageName=gpsUserInput or via phone at (703) 313-5900, 24 hours a day.