Supertyfoon Megi (Juan) raast over Filipijnen en China

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Op zondag 17 oktober 2010 18:00 schreef Frutsel het volgende:
hoe is de luchtdruk nu?

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Op zondag 17 oktober 2010 18:57 schreef Frutsel het volgende:

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Valt me eigenlijk nog wat tegen, had hem al onder de 900 verwacht

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Op zondag 17 oktober 2010 19:23 schreef Frutsel het volgende:

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als wat? Cat.4 ?

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Op zondag 17 oktober 2010 18:57 schreef Frutsel het volgende:

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Valt me eigenlijk nog wat tegen, had hem al onder de 900 verwacht

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The world's strongest tropical cyclone of 2010 is Super Typhoon Megi, which intensified into an extremely dangerous Category 5 super typhoon with 180 mph winds this morning. We are fortunate to have a hurricane hunter aircraft in Megi, as part of the Interaction of Typhoon and Ocean Project (ITOP), which is studying how the ocean responds to typhoon growth and movement in the Western Pacific Ocean. As part of ITOP, a C-130 hurricane hunter aircraft was in Megi this morning, and measured some truly remarkable winds and pressures. At 8:09am EDT (12:09 UTC), the aircraft measured winds at flight level (8,000 feet) of 220 mph. The SFMR surface wind measurement instrument recorded surface winds of 186 mph in regions where heavy rain was not contaminating the measurement, but found surface winds of 199 mph in one region of heavy rain. Now, this measurement is considered contaminated by rain, but at very high wind speeds, the contamination effect is less important than at lower hurricane wind speeds, and it is possible than Megi's surface winds are close to a sustained 200 mph. This is supported by the flight level winds of 220 mph, which support surface winds of 199 mph, using the usual 10% reduction rule of thumb. The Hurricane Hunters measured a surface pressure of 893 mb at 12 UTC. This is a phenomenally low pressure, ranking Megi as the 20th strongest typhoon ever recorded in the Western Pacific. Only three Atlantic hurricane have been more intense than Megi--Wilma (2005) at 882 mb, Gilbert (1988) at 888 mb, and the 1935 Labor Day Hurricane, at 892 mb. Megi's intensity easily beats out 2010's other two Category 5 storms, March's Tropical Cyclone Ului in the South Pacific and the East Pacific's Hurricane Celia of June, which both peaked at 160 mph winds. It is still possible that Megi will intensify further, as wind shear is low, less than 10 knots, SSTs are very warm, and the ocean has a very high total heat content.

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Only three Atlantic hurricane have been more intense than Megi--Wilma (2005) at 882 mb, Gilbert (1988) at 888 mb, and the 1935 Labor Day Hurricane, at 892 mb.

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According to the Saffir-Simpson damage scale the potential property damage and flooding from a storm of Megi's strength (category 5) at landfall includes:

Storm surge generally greater than 5.5 metres (18 feet) above normal.
Complete roof failure on many residences and industrial buildings.
Some complete building failures with small utility buildings blown over or away.
All shrubs, trees, and signs blown down.
Complete destruction of mobile homes.
Severe and extensive window and door damage.
Low-lying escape routes are cut by rising water 3-5 hours before arrival of the centre of the storm.
Major damage to lower floors of all structures located less than 4.6 metres (15 feet) above sea level and within 460 metres (500 yards) of the shoreline.
Massive evacuation of residential areas on low ground within 8-16 km miles (5-10 miles) of the shoreline may be required.
There is also the potential for flooding further inland due to heavy rain.