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Marine weather forecasting is the process by which mariners and meteorological organizations attempt to forecast future weather conditions over the Earth's oceans. Mariners have had rules of thumb regarding the navigation around tropical cyclones for many years, dividing a storm into halves and sailing through the normally weaker and more ...
The Shipping Forecast is a BBC Radio broadcast of weather reports and forecasts for the seas around the British Isles.It is produced by the Met Office and broadcast by BBC Radio 4 on behalf of the Maritime and Coastguard Agency.
Embedded in these high seas areas are smaller offshore zones off the Atlantic and Pacific coasts. These zones extend from near the coast seaward to just beyond the U.S. Exclusive Economic Zones, out to about 250 nautical miles (460 km). OPC services ensure the safety of the extensive commercial and recreational fishing, boating, and shipping ...
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 ...
A weather window occurs when weather forecasts indicate that a given set of marine operations or offshore construction activities can be performed within their maximum limits for wave height, wind speeds etc. Critical elements for offshore operations are use of time and expected weather.
these winds will persist through the late evening... then will shift southwest and gradually ease to 20 to 30 kt late tonight. as the winds increase...combined seas will build to 12 to 15 feet at 8 seconds. then on saturday...westerly swells of 15 to 16 feet at 12 seconds will arrive..decreasing to 9 to 11 feet sunday morning.
Marine dense fog advisory MWS – Widespread dense fog reducing visibility to less than 1 mile (1,600 m) covering more than half the area of a marine zone is expected for at least two hours over a 12-hour period, creating hazardous navigation conditions for boaters and other marine vessels. Marine weather statement MWS – The equivalent of a ...
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.