SuperTyphoon Chedeng (Songda) gains strength, move towards Japan

SuperTyphoon Chedeng (Songda) gains strength, move towards Japan

Super Typhoon Songda swirled off the coast of Luzon, at the northern end of the Philippine Islands, on the afternoon of May 27, 2011. Peak winds were around 240 kilometers (150 miles) per hour at 06:00 Universal Time (2 p.m. local time), according to the Joint Typhoon Warning Center (JTWC).

This photo-like image shows Songda roughly an hour prior to the JTWC wind speed measurement. The data were collected by the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite at 1:10 p.m. local time (5:10 UTC) on May 27. The distinct, but cloud-filled eye of the super typhoon was well offshore from the major islands of Luzon and Taiwan, though spiral arms of the storm extended for hundreds of kilometers from the center, bringing severe weather to both places.

The storm’s track was predicted to keep it offshore from Taiwan, curving eastward as it travels north. While the storm is quite intense, the fact it has stayed far offshore has kept casualities and damage light. One death in the Philippines had been ascribed to the storm, according to the Philippines disaster council. There has been some crop damage, but since the storm buffeted the islands past the date of harvest, agricultural yields have not been affected.

There is some concern along coastal areas of Japan, though Super Typhoon Songda should lose much of its power by May 29, with winds likely down to tropical storm strength, according to predictions. (EO)


Songda had a circular eye with extremely heavy rainfall, particularly in the southeast quadrant. The red areas represent heavy rainfall (falling at about 2 inches/50 mm per hour). The yellow and green areas are moderate rainfall, falling at a rate between .78 to 1.57 inches (20 to 40 mm) per hour.



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TheWatchers Adorraeli on Facebook 10 years ago

john fichtner commented on The Watchers: I assume you meant counter clockwise in your sentence about the Southern Hemisphere. I had no idea about that. Very interesting. Thanks for that tidbit of info.

TheWatchers Adorraeli on Facebook 10 years ago

eye commented on The Watchers:

Typhoons rotate counterclockwise if they form in the Northern Hemisphere, while so-called "backward" storms, which rotate clockwise, form in the Southern Hemisphere. Clockwise-rotating storms are most common in the Indian Ocean and off the coast of Australia; backward hurricanes in the Atlantic basin are extremely rare.
(LiveScience)Read more in one of our previous posts

TheWatchers Adorraeli on Facebook 10 years ago

john fichtner commented on The Watchers: looks like this is spinning counter clockwise. Is this normal? I thought they spun clockwise only.

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