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Volume 32, Issue 3

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Wednesday, 17 June 2015 05:00

Facts and Stats ... An Update

Written by  Robbie Atabaigi, MBCI, MBCP, CISA

Several years ago, I published an article with DRJ entitled “Facts and Stats” that listed the scales of measurement for various types of phenomena, mostly weather related. Recently, I was amazed to see a few of these have since been updated ... Cyclones, Hurricanes, and Typhoons Hurricane season in the Atlantic begins June 1st and ends November 30th. The Eastern Pacific hurricane season begins May 15th and also ends November 30th. Cyclone – An atmospheric closed circulation rotating counter-clockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere. Hurricane/typhoon – A tropical cyclone in which the maximum sustained surface wind (using the U.S. one-minute average) is 64 kt (74 mph or 119 km/hr) or more. The term hurricane is used for Northern Hemisphere tropical cyclones east of the International Dateline to the Greenwich Meridian. The term typhoon is used for Pacific tropical cyclones north of the Equator west of the International Dateline.Tropical Depression: