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The National Weather Service issues a similar high wind warning (Specific Area Message Encoding code: HWW) for high winds on land. The criteria vary from place to place; however, in most cases, the warning applies to winds of 40 miles per hour (64 km/h) to 73 miles per hour (117 km/h) for at least 1 hour; or any gusts of 58 miles per hour (93 km/h) to 114 miles per hour (183 km/h) on land.
A NAVTEX receiver prints an incoming message NAVTEX message for the Baltic Sea. NAVTEX (NAVigational TEleX), sometimes styled Navtex or NavTex, is an international automated medium frequency direct-printing service for delivery of navigational and meteorological warnings and forecasts, as well as urgent maritime safety information (MSI) to ships.
Warnings are sent using methods such as NAVTEX and Inmarsat-C. [5] Once a warning is no longer relevant, the notice is cancelled. Longer-term hazards are converted into a notice to mariners. [5] The highest level of warning is a Navigational Area warning. There are also Sub-Area warnings, Coastal warnings, and Local warnings.
Navtex is an international, automated system for instantly distributing maritime safety information (MSI) which includes navigational warnings, weather forecasts and weather warnings, search and rescue notices and similar information to ships. A small, low-cost and self-contained "smart" printing radio receiver is installed on the bridge, or ...
Sécurité: A radio call that usually issues navigational warnings, meteorological warnings, and any other warning needing to be issued that may concern the safety of life at sea, yet may not be particularly life-threatening. Pan-pan: This is the second most important call. This call is made when there is an emergency aboard a vessel, yet there ...
The Radio Navigational Aids (Publication 117) publication contains a detailed list of selected worldwide radio stations that provide services to the mariner. [1] The publication is divided into chapters according to the nature of the service provided by the radio stations. [ 1 ]
Special marine warning SMW – A warning to mariners of short-duration hazardous weather conditions (lasting up to two hours) including thunderstorms or squalls with wind gusts of 34 knots (39 mph; 63 km/h) or more, hail 1 inch (2.5 cm) diameter or larger, or waterspouts affecting coastal areas not adequately covered by existing marine warnings.
An Electronic Navigational Chart (ENC) is a digital representation of a real-world geographical area for the purpose of Marine navigation.Real-world objects and areas of navigational significance, or to a lesser degree - informational significance, are portrayed through Raster facsimiles of traditional paper charts; or more commonly through vector images, which are able to scale their relative ...