Sentences with phrase «number of tropical cyclones per»

Looking at data from 1855 through 2005, Webster and Holland found that the total number of tropical cyclones per year doubled in that time, from an average of six at the beginning of last century to 14 over the past decade.

Not exact matches

HOWEVER, the number of tropical cyclones with intensity greater than 34 - knots has remained at the 30 - year average (83 storms per year).

While there has been a recent increase in the number of landfalling US hurricanes, the increase in tropical cyclone - associated heavy events is much higher than would be expected from the pre-1994 association between the two, indicating that the upward trend in heavy precipitation events is due to an increase in the number of heavy precipitation events per system.

There have been a number of interesting new studies of Atlantic tropical cyclones (TCs) and hurricanes (tropical cyclones with maximum sustained winds exceeding 74 miles per hour) since my review of the topic a couple years ago (see here and here).

Graphic showing that we've been in an active period of tropical cyclone activity since 1995, where the average number of named tropical storms has jumped significantly to 15.2 per year.