Wipha/Nari

19 Sep

 

It’s peak typhoon season in the Western Pacific ocean. This year there’s been a below average number of storms so far, as there has been for a number of years now. This is in contrast to the Atlantic. Global warming probably doesn’t cause more storms directly, as there are complex weather and water systems involved. However, it’s nearly certain that global warming is causing stronger storms, in all the world’s basins for tropical cyclone development. Sea temperatures are above average in both basins and higher water temperatures, particularly south of Korean, west of Japan and north of Taiwan, have meant that two recent storms exploded in size and strength over a tiny timescale.

Wipha struck south of Shanghai, China at a moderately strong storm, yet a few hours before landfall it was a giant Supertyphoon with winds just below 153mph. Just a few days earlier storm Nari (pictured) went from a minimal Category 1 storm with winds of 75mph, to a compact monster with 140mph winds…in 24 hrs. Normally such rapid intensification takes 3 to 7 days.

Meanwhile back in the Atlantic there have been two landfalling Category 5 storms, which has never happened before, not even in 2005. More amazing is that there have only been 9 Atlantic storms this year!

 

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