NASA sees Sanba develop into a super typhoon

watcher times

September 13, 2012 NASA’sAqua satellite passed over Super Typhoon Sanba on Sept. 13 at 0447 UTC (12:47 a.m. EDT). The Atmospheric Infrared Sounder (AIRS) instrument captured an infrared image of Sanba and found an eye about 20 nautical miles (23 miles/37 km) wide, surrounded by a thick area of strong convection (rising air that forms the thunderstorms that make up the storm) and strong thunderstorms. Forecasters at the Joint Typhoon Warning center noted that the AIRS imagery showed that there was “no banding outside of this ring, consistent with an annular typhoon.” On Sept. 13 at 1500 UTC (11 a.m. EDT), Sanba’s maximum sustained winds were near 135 knots (155 mph/250 kmh). Sanba had higher gusts into the Category 5 typhoon category. The Saffir-Simpson scale was slightly revised earlier in 2012, so a Category 4 typhoon/hurricane has maximum sustained winds from 113 to 136 knots (130 to 156 mph…

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Interested in all things about the Planet.
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