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Warning pennant Warning flag. A single red pennant was shown from the top of the tower as a small craft advisory; for a gale warning, two such pennants were used. Two square flags, red with a black square at center, indicate an approaching hurricane or winds >73 MPH. One such flag warns of storm-force winds or an approaching tropical storm.
The same flag as a storm warning is used to indicate a tropical storm warning. On land, the National Weather Service issues a 'high wind warning' (Specific Area Message Encoding code: HWW) for storm-force winds, which also encompasses the lesser gale-force and greater hurricane force winds. In most cases, the warning applies to winds of 40-114 ...
A storm surge watch would be issued when a life-threatening storm surge, associated with a potential or ongoing tropical, subtropical or post-tropical cyclone, is possible within the next 48 hours. These watches would be upgraded to storm surge warnings when there is a danger of life-threatening storm surge occurring within 36 hours.
A storm set to brew off the southeastern US coast late this week will bring gusty winds, heavy rain and hazardous seas from Florida to New England. Tropical storm warning issued for parts of East ...
Tropical storm warning flag used in the United States. The timing and naming of tropical cyclone advisories, watches, and warnings have changed over time. In 1958, tropical cyclone advisories were issued every six hours starting at 04:00 UTC each day. During 1967, hurricane watches were used to designate areas where hurricane conditions were ...
In the next few days, this one could become the next tropical storm or hurricane targeting the U.S. East Coast. "Into Sunday, this system is unlikely to organize into a tropical depression, but as ...
A tropical storm watch was issued for northeastern Nicaragua and a tropical storm warning and hurricane watch were issued for Honduras. Potential Tropical Cyclone was upgraded to Tropical ...
In US maritime warning flag systems, two red square flags with a black square taking up the middle ninth of each flag is used to indicate a hurricane force wind warning (the use of one such flag denotes a storm warning or a tropical storm warning). The flags used to denote hurricane force winds are also used to warn of incoming hurricanes. [5]