tropical storm


tropical storm

n. A cyclonic storm originating in the tropics and having winds ranging from 39 to 73 miles per hour (34 to 63 knots; 63 to 117 kilometers per hour).

trop′ical storm′


n. a tropical cyclone of less than hurricane force.

tropical storm

A tropical cyclone in which the surface wind speed is at least 34, but not more than 63 knots.