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A Small Craft Advisory may also be issued when sea or lake ice exists that could be hazardous to small boats. [1] The insignia that denotes a small craft advisory is one red, triangular flag (two such flags, one placed above the other, signify a gale warning). Inland, this advisory is known as a wind advisory.
Small craft advisory for hazardous seas SCAH – An advisory to mariners of wave or sea conditions that are potentially hazardous to small boats because of wave height, wave period, steepness, or swell direction, even if wind speeds are expected to fall below locally defined small craft advisory criteria. Only issued by WFOs in coastal regions ...
Severe thunderstorm warning; Severe thunderstorm watch; Severe weather terminology (Canada) Severe weather terminology (Japan) Severe weather terminology (United States) Shipping Forecast; SIGMET; Significant weather advisory; Small craft advisory; Snow emergency; Snow squall warning; Special marine warning; Special weather statement
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.
In the United States of America, winds of force 6 or 7 result in the issuance of a small craft advisory, with force 8 or 9 winds bringing about a gale warning, force 10 or 11 a storm warning ("a tropical storm warning" being issued instead of the latter two if the winds relate to a tropical cyclone), and force 12 a hurricane-force wind warning ...
"The threat for damaging winds has ended, but wind gusts of 40 mph will remain possible for the next several hours," according to the National Weather Service. The warning is in effect until 7 a.m ...
Forecasters are warning of trouble ahead for residents along the Gulf of Mexico. The National Hurricane Center will issue its first advisory on the system at 11 a.m. EDT.
The National Weather Service issued a "small dog warning" to pet owners in Ohio and Pennsylvania this week.