Re: Super Typhoon MUIFA
Posted by
hanna on 8/3/2011, 3:53 pm
Fred sorry thought it was listed as a cat 3, 4 or 5. Below are what U.S. Joint Typhoon Warning Center & Wikipedia.org say.
"Super-typhoon" is a term utilized by the U.S. Joint Typhoon Warning Center for typhoons that re
ach maximum sustained 1-minute surface winds of at least 65 m/s (130 kt, 150 mph). This is the equivalent of a strong Saffir-Simpson category 4 or category 5 hurricane in the Atlantic basin or a category 5 severe tropical cyclone in the Australian basin.
http://www.aoml.noaa.gov/hrd/tcfaq/A3.html
Any tropical cyclone that forms to the west of 180° and east of 100°E in the Northern Hemisphere is officially monitored by the Regional Specialized Meteorological Center in Tokyo, Japan.[9] The Japan Meteorological Agency, which runs RSMC Tokyo, uses four different categories to measure the wind speed produced by a tropical cyclone. These classifications are based on the maximum sustained winds produced by the storm averaged over a 10-minute interval.[9]
A tropical depression is the lowest category that the Japan Meteorological Agency uses and is the term used for a tropical system that has wind speeds not exceeding 35 knots, (40 mph, 65 km/h).[9] A tropical depression is upgraded to a tropical storm should its sustained wind speeds exceed 35 knots, (40 mph, 65 km/h). Tropical storms also receive official names from RSMC Tokyo.[9] Should the storm intensify further and reach sustained wind speeds of 50 knot (60 mph, 95 km/h) then it will be classified as a severe tropical storm.[9] Once the system's maximum sustained winds reach wind speeds of 65 knots (70 mph 120 km/h), the JMA will designate the tropical cyclone as a typhoon-the highest category on its scale.[9] From 2009 the Hong Kong observatory started to further divide typhoon into two further classifications severe typhoon and super typhoon.[10] A severe typhoon has winds of at least 80 knot (95 mph, 150 km/h) whilst a super typhoon has winds of at least 100 knot (115 mph, 185 km/h).[10]
The United States' Joint Typhoon Warning Center (JTWC) unofficially classifies typhoons with wind speeds of at least 130 knots (67 m/s; 150 mph; 241 km/h)-the equivalent of a strong Category 4 storm in the Saffir-Simpson scale-as super typhoons.[11] However, the maximum sustained wind speed measurements that the JTWC uses are based on a 1-minute averaging period, akin to the U.S.' National Hurricane Center and Central Pacific Hurricane Center. As a result, the JTWC's wind reports are higher than JMA's measurements, as the latter are based on a 10-minute averaging interval.[12]
http://en.wikipedia.org/wiki/Super_typhoon#Western_Pacific
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Super Typhoon MUIFA -
hanna,
8/2/2011, 3:58 pm Post A Reply
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