000 NTUS40 KWBC 260416 HighSeas Forecast KeepAlive Message This message is generated by Gmdss SanDiego every 15 minutes. Check the date and time stamp to see if it is current If it is not current then call SanDiego and as!k them to check the GMDSS SanDiego Program and Awip's LDAD SanDiego's Phone Number 858-675-8705