![]() Strong wind warnings will only be issued if the wind in an Inshore Waters forecast area is expected to exceed force 6 but was not identified in the previous Inshore Waters forecast. ![]() Both are kept under continuous review by forecasters. Strong wind warnings for Inshore Waters are also broadcast as soon as possible after receipt. After 24 hours, a gale warning still in force will be renewed. Gale warnings for Sea Areas are broadcast as soon as possible after receipt and are valid for 24 hours unless cancelled. This is important especially when some broadcasts take up to 20 minutes and in order to minimise the delay in transmitting the information nationally. This prevents mutual interference and allows one operator to broadcast simultaneously on two or more aerials. The 3-hourly MSI broadcasts are on VHF Channels 23, 84 or 86, and exceptionally Channel 10. This is not an indication that transmissions are from different locations. A single MSI transmission may include different voices and accents. Maritime Safety Information is pre-recorded, often by different Coastguard Officers. NOTE The broadcast of MSI may be interrupted or delayed as a result of Search and Rescue operations. they will remain unchanged throughout the year. The broadcast times shown in the schedules on another page are in local clock' time i.e. A new Inshore Waters Forecast and any Gale Warnings will be broadcast every 6 hours and will be repeated together with any Strong Wind Warnings (SWW) three hours later. Full MSI broadcasts are made by Radio Telephony (R/T) twice a day.
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