When will the CWB issue a sea warning for typhoon?
A sea warning will be issued when the typhoon’s radius of sustained winds of 34 knots or greater is anticipated to touch the 100 km sea area of Taiwan in 24 hours; and then be renewed every 3 hours. The 24-hour lead time is tried to allow navigating or operating vessels to have sufficient time to escape to shelters or to take other precautionary measures. Meanwhile, the public should avoid seashore activities during typhoon warning period to prevent surge-induced accidents.