A warning for tropical storm conditions including sustained winds within the range of 34 to 63 kt (39 to 73 mph or 63 to 118 km/hr) that are expected in a specified coastal area within 24 hours or less.
TROPICAL STORM WARNING
Meaning of TROPICAL STORM WARNING in English
Weather and meteorology English vocabulary. Английский словарь погоды и метеорологии . 2012