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Dr. Jeff Masters’ WunderBlog : Typhoon Utor Pounds Phiippines, Heads for China | Weather Underground

Typhoon Utor Pounds Phiippines, Heads for China

Posted by: Dr. Jeff Masters, 1:51 PM GMT on August 12, 2013 +52

Typhoon Utor powered ashore on the northern Philippine Island of Luzon on Monday near 3 am local time (3 pm EDT Sunday) as a Category 4 storm with 140 mph winds. Damage was heavy in Casiguran(population 24,000) near where the typhoon made landfall, with 80% of the infrastructure of the town reportedly destroyed, and all roads into the city blocked. Utor is being blamed for two deaths so far, and 44 fishermen are reported as missing.

utor_aug12.jpg
Figure 1. MODIS satellite image of Typhoon Utor taken at approximately 02:30 UTC on Monday, August 12. At the time, Utor was a Category 2 storm with 100 mph winds. Image credit:NASA.

Passage over Luzon disrupted the inner core of Utor, reducing the storm to Category 2 strength with winds of 100 mph. Satellite imagery shows that the typhoon is re-organizing, and a new eyewall is forming. Ocean temperatures are very warm, about 30°C (86°F), which is approximately 0.5 – 1.0°C above average.These warm watersextend to tremendous depth, giving Utor a huge source of energy to tap into. Wind shear is low, 5 – 10 knots. These favorable conditions for intensification will last until the typhoon gets midway between the Philippines and China, where wind shear will rise to the moderate range and ocean waters will cool to 29°C with a much lower heat content. I expect Utor will intensify into a Category 3 storm today, and make landfall in China as a Category 2 or 3 storm about 200 hundred miles southwest of Hong Kong about 06 UTC on Wednesday. Utor is a very wet storm, and will likely bring a large swath of 8+ inches of rain across Southeast China on Wednesday. These rains will cause dangerous flash flooding and mudslides.

Utor is a Marshallese word for squall line, andhas been used for three tropical cyclones in the Western Pacific–in 2001, 2006, and 2013. Utor reached super typhoon status with 150 mph winds on Sunday, making it the strongest tropical cyclone globally so far in 2013. Earth’s previous most powerful tropical cyclone of 2013 was Typhoon Soulik,which reached Category 4 strength with 145 mph winds on July 10. Soulik weakened to a Category 2 storm before hitting Taiwan on July 12.

https://www.youtube.com/watch?v=VmbrOr96w00&feature=youtube_gdata_playerhttps://www.youtube.com/watch?v=VmbrOr96w00&feature=youtube_gdata_player

Video 1. News video of the damage from Typhoon Utor in Casiguran in the Philippines. Utor is being called Typhoon Labuyo locally in the Philippines. Thanks to wunderground member AussieStorm for posting this in my blog comments.

(To read the rest of this article please click the link below to go to the full story eith comments on Dr Master’ blog)

http://www.wunderground.com/blog/JeffMasters/comment.html?entrynum=2486