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Author Topic: NASA sees Sanba develop into a super typhoon  (Read 3791 times)

Offline Mark

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NASA sees Sanba develop into a super typhoon
« on: September 14, 2012, 09:31:16 AM »
September 13, 2012 – ASIA – Tropical Storm Sanba exploded in intensity between Sept. 12 and 13, becoming a major Category 4 Typhoon on the Saffir-Simpson Scale. NASA’s Aqua satellite captured infrared data that showed a large area of powerful thunderstorms around the center of circulation, dropping heavy rain over the western North Pacific Ocean. NASA’s Aqua 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 /209 to 251 kmh). A Category 5 typhoon’s maximum sustained winds begin at 137 knots (157 mph /252 kmh). Sanba was located about 600 nautical miles (690 miles/1,111 km) south of Kadena Air Base, near 16.8 North latitude and 129.5 East longitude. It was moving to the north at 9 knots (10.3 mph/16.6 kmh) and generating wave heights of 40 feet. Sanba is expected to continue on a north-northwesterly track through the western North Pacific and move through the East China Sea, passing close to Kadena Air Base, Okinawa, Japan on Sept. 15. –Physics



Offline Mark

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300 dead, 600 missing from floods in North Korea, as country awaits arrival of typhoon Sanba.

September 15, 2012 – NORTH KOREA – Just as another typhoon headed toward the Korean peninsula, North Korea on Friday summarized the damage from the late summer storm season – 300 dead and another 600 injured or missing. North Korea’s state news agency said that the worst damage came from the typhoon called Bolaven that swept over the peninsula on Aug. 28 and 29. That storm alone killed 59 people and left about 26,320 people homeless after about 8,000 houses were destroyed by rain and flooding. For a country that is so poor and inefficient that each year’s summer storms leave it a disastrous wreck, North Korea provides strikingly precise data about the damage. Since mid-June, storms and floods damaged or destroyed 87,280 homes and left 298,050 people homeless, its news agency said. It did not say whether they were temporarily homeless from, say, floodwater, or indeed needed entire new homes. Among the other damage, 92 drinking water systems were ravaged and 16,900 trees knocked down. “More than 17,150 square meters of railroad were washed away and over 300 sections of railway were covered by landslides, with scores of tunnels and railway bridges damaged,” it said. Now comes Typhoon Sanba, which is heading north from the Philippines toward Okinawa this weekend and the Korean peninsula by Monday. It is a stronger storm than Bolaven, which was billed as the biggest in a decade but didn’t turn out that way. Stars and Stripes reporter Dave Ornauer on Okinawa warns that he’s never seen a storm as intense as Sanba is shaping up to be. By the time it hits the Korean peninsula, its winds will have died down from Category 4 to Category 2 speeds, he estimates. Even so, both South and North Korea are well-saturated. And North Korea is in no shape for another big storm. -WSJ


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