Typhoon Yagi: What makes a storm a typhoon and what is a super category 5 typhoon?
The IndependentSign up to the Independent Climate email for the latest advice on saving the planet Get our free Climate email Get our free Climate email SIGN UP I would like to be emailed about offers, events and updates from The Independent. El Nino, La Nina — El Nino is a naturally occurring climate phenomenon that starts with unusually warm water in the central and eastern equatorial Pacific and then changes weather worldwide. hurricane or typhoon — A warm-core tropical cyclone in which the minimum sustained surface wind is 74 mph or more. tropical storm — A warm-core tropical cyclone in which the maximum sustained surface winds range from 39 mph to 73 mph. nor’easter — The term used by the National Weather Service for storms that either exit or move north along the East Coast, producing winds blowing from the northeast.