Forecasts on Marine VHF and MF from MRCCsin the UK and abroad
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The prime method of disseminating full MSI is by NAVTEX which provides coverage
up to around 400 nautical miles out to sea. UK NAVTEX stations have an
advertised range of about 270 miles This service is complemented by radio telephony and, with its
network of remote radio sites around the coast of the UK, HM Coastguard provides
VHF and MF coverage out to 30 miles and 150 miles respectively
RADIO TELEPHONY BROADCASTS |
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Full MSI broadcasts are made by Radio Telephony (R/T) twice a day. 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. The broadcast times shown in the schedules on another page are in local ‘clock’ time i.e. they will remain unchanged throughout the year. NOTE The broadcast of MSI may be interrupted or delayed as a result of Search and Rescue operations. Maritime Safety Information is pre-recorded, |
often by different Coastguard Officers. A single MSI transmission may include different voices and accents. This is not an indication that transmissions are from different locations. MSI is broadcast 3-hourly on VHF Channels 23, 84 or 86, and exceptionally Channel 10. This prevents mutual interference and allows one operator to broadcast simultaneously on two or more aerials. This is important especially when some broadcasts take up to 20 minutes and in order to minimise the delay in transmitting the information nationally. |
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METEOROLOGICAL WARNINGS |
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| Gale warnings for Sea Areas are broadcast as soon as possible after receipt and are valid for 24 hours unless cancelled. After 24 hours a gale warning still in force will be renewed. Strong wind warnings for Inshore Waters Waters are also broadcast as soon as possible after receipt. .Strong wind warnings will only be issued if the wind in an Inshore Waters forecast area is now expected to exceed force 6 but was not identified in the previous Inshore Waters forecast. These will be broadcast on receipt and |
may be included in the repetition broadcast; they are valid until the next new Inshore Waters forecast. Users are encouraged to listen to these broadcasts as an alternative to calling co-ordination centres for meteorological information. Gale warnings, Inshore Waters Forecasts and Shipping Forecasts can also be accessed from the Met Office Web Site and on the BBC site available as a text only version,. |
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VHF and MF |
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routines are used for VHF MSI broadcasts as below. Routine A - VHF and MF, Twice a day. Full Maritime Safety Information broadcast, including new Inshore Waters Forecast and Outlook, Gale Warnings, Shipping Forecast, WZ Navigation Warnings including negative Tide Surge Warnings , SUBFACTS & GUNFACTS where appropriate, and the 3 Day Fisherman’s Forecast when and where appropriate. Routine B - VHF only, Twice a day. New Inshore Waters Forecast plus Gale Warnings. |
Routine C - VHF only, Four times a day. Three hour after a Routine A or B broadcast. Repetition of Inshore Waters Forecast and Gale Warnings as per previous Schedule A or B Broadcast plus new Strong Wind Warnings. Routine D MF. only when gale warnings are in force. Repetition of Inshore Waters Forecast, Gale Warnings This (MF) routine is only made if there are gale warnings in force. Schedules, VHF channels, MF frequencies and broadcast content are on another page. |
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Fisherman's 3 day forecast |
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MRCC Shetland Northern North Sea including Sea Areas: Fair Isle, Viking, Cromarty and Forties. MRCC Aberdeen Northern North Sea including Sea Areas: Viking, Cromarty, Forth, Forties, Fisher and Fair Isle. MRCC Humber Southern North Sea including Sea Areas: Tyne Dogger, German Bight, Humber and Thames. MRCC Falmouth South Western Approaches including Sea Areas: Plymouth, Fastnet, Shannon, Sole and Fitzroy. MRCC Stornoway North Western Approaches including Malin, Hebrides, Rockall, Faeroes. |
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When Abroad |
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| Similar forecasts can be obtained from the local MRCSs and MRCSs. For Schedules see ALRS, Almanacs or the National Met Service Internet sites. Western European VHF services are listed below, Other European areas VHF forecast services are on other pages as indicated, Areas Times are UTC except where noted.
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FranceFrench, CROSS, stations broadcasting Inshore waters forecasts (in French). Forecasts cover up to 20 M offshore.
The BalticFor details see my Baltic Weather Forecast page Icelandic WatersSee the Iceland page. The MediterraneanSee the Mediterranean Weather Forecast page. |
Channel Isles, Ireland, Belgium, Netherlands, Germany(NB Denmark only broadcasts on MF. Portugal broadcasts weather forecasts on MF although there are some port forecasts on Ch 11 and Radionaval may be heard on Ch 11 from Monsanto, try 0805 and 2005, or Sagres, try 0835 and 2035 UTC.)
German Traffic Centres give regular and frequent updates of weather conditions in the approaches to ports and harbours Atlantic SpainSpanish stations broadcasting Sea Area forecast in English and Inshore waters forecasts, sometimes in English
Spanish stations broadcasting Inshore Waters forecasts in Spanish.
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© Frank Singleton, December 2000