Signal 1 - Wind less than 60 km/hr expected in 36 hours; listen to radio, pre-school classes are suspended, Signal 2 - 60-100 km/hr winds expected in 24 hours; elementary and high school classes suspended; moderate damage possible., Signal 3 - 100-180 km/hr winds expected in 18 hours; houses of light materials may be destroyed; evacuation advised; classes suspended at all levels., Signal 4 - A stronger typhoon within 10 hours; winds above 180km/hr very dangerous, great damage possible, Signal 5 - Strongest typhoon within 12 hours, winds above 220 km/hr widespread damage to structures and trees.,

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