GMDSS forecasts for Metareas 4-21, the rest of the world

Currently, May 2023, the MailASail text responder is not working. This is because WMO has changed its site.

This page is, like others, on a best endeavours basis. Corrections and additions will be gratefully used.

Related pages


For navigation and weather forecasting purposes, the world is divided into 21 Navareas or Metareas , the terms are interchangeable.


High Seas forecasts for these areas are broadcast on one or more of Inmasat-C, HF/SSB or NAVTEX .

Fast GMDSS links

The WMO WWMIWS site site has fast links to texts of all High Seas and many NAVTEX messages globally.
NOTE Regrettably, NAVTEX texts cannot be bookmarked or obtained using the Sailmail/Saildocs text retrieval service.

Sea surface temperatures

The Mariner’s Tropical Cyclone Guide is a useful page produced by the NOAA National Hurricane Center.

Metarea 4 – Atlantic USA, Canada, Caribbean, Gulf of Mexico

NB. URLs in these two latter pages can be bookmarked and used with text retrieval.

Around Curacao - 48 hours and 5-day forecasts covering

  • Caribbean from 11N to 15N between 72W and 80W including Colombia Basin-
 * Caribbean S of 15N between 64W and 72W including Venezuela Basin-

Forecast areas

All US sea areas – can be used to download forecast texts.

Metarea 5 Brazilian waters

Forecast areas

Metarea 6 – Brazil/Uruguay border to the Antarctic.

 * High Seas, WWMIWS or Email request 

This has all NAVTEX tesxts for the area.

Forecast areas

Metarea 7 South Africa south to the Antarctic

Forecast Areas

Metarea 8N Indian Ocean North of the Equator

Forecast areas

Metarea 8S Indian Ocean south south of the equator

Forecast areas

Metarea 9 - Red Sea, Gulf of Aden, Arabian Sea and Persian Gulf, north of Area 8

Forecast areas

Metarea 10 South Indian Ocean, Southern Ocean 141 to 170 degE, Australian waters.

The following are “menus” for various areas.

Forecast areas

Metarea 11 Malaysian Archipelago, Seas of China and Japan. N Pacific to 45 degN, 180DegE/W.-

High Seas

Coastal waters

Forecast areas

Metarea 12 Eastern North Pacific and Sea of Mexico

 *High Seas, WWMIWS or   Email request 
*Canadian Pacific Forecasts menu

NB. URLs from these two pages can be bookmarked and used with Saildocs text retrieval facility

Forecast areas

Metarea 13 NW Pacific, north of 45 degN

No forecasts found on-line

Forecast areas

Metarea 14 Central South Pacific

New Zealand coastal waters


See also


French Polynesia

Forecast areas

Metarea 15 SE Pacific, 18 degS to Antarctica, Drakes Channel, Is Pasqua

Metarea 16 Peruvian coast to 120 deg W

Forecast areas

Metareas 17 – 21, The Arctic

Metarea 17, Western Arctic/Alaska

Metarea 18, Western Arctic, W Greenland

CMC Marine menu
NOAA Offshore listing

Metarea 19, East Arctic to north of Metarea 1

Metareaa 20, East Arctic, north of Scandinavia

Metarea 21, Arctic north of Siberia.

  • No forecasts available online.

Arctic sea areas

Metarea 17 & 18, Canada and USA/Alaska

Metareas 17, 18 & Greenland

Metarea 19
Metareas 20 &21

Synoptic charts and other information

With limited bandwidth use the

Sources of GRIB output - mainly from the US GFS (Global Forecast System)

For a laptop computer

For a tablet

All provide the GFS, some give alternatives.

For all systems

  • A variety of services Links to many GRIB type services from national meteorological services and commercial sources.