October 12, 2013

Crap - our prayers go out to the people of India

From the Weather Underground:
Category 4 Cyclone Phailin Hits India; 13 Dead in Philippines From Typhoon Nari
Very dangerous Tropical Cyclone Phailin has made landfall on the northeast coast of India near the town of Gopalpur (population 7,000) at 16 UTC (noon EDT) Saturday, October 12, 2013. Phailin was weakening substantially at landfall, due to interaction with land, and was rated a Category 4 storm with 140 mph winds by the Joint Typhoon Warning Center (JTWC), four hours before landfall. The pressure bottomed out at 938 mb in Gopalpur as the eye passed over, and the city reported sustained winds of 56 mph, gusting to 85 mph, in the eyewall. A 938 mb pressure is what one expects to find in a Category 4 storm with 140 mph winds, using the "Dvorak technique" of satellite wind and pressure estimation. Satellite images show that Phailin's intense thunderstorms have warmed and shrunk in areal coverage, and radar out of Visakhapanam, India also shows a weakening of the storm's echoes as it pushes inland. Phailin is bringing torrential rains of over an inch per hour, as estimated by microwave satellite instruments.

Phailin is the strongest tropical cyclone to affect India in fourteen years, since the great 1999 Odisha Cyclone. That storm hit with maximum sustained winds of 155 mph, and brought a storm surge of 5.9 meters (19 feet) to the coast. Phailin should be able to drive a similar-sized storm surge to the coast, since it is larger in areal extent than the 1999 cyclone (although somewhat weaker, with winds perhaps 20 - 30 mph lower.) Phailin's storm surge and Category 3 to 4 winds will cause near-catastrophic damage to a 50-mile wide swath of the coast where the eyewall comes ashore, and to the right. Hurricane Katrina was weaker at landfall than Phailin, but Katrina had hurricane-force winds that covered a much larger area, making Katrina's storm surge much more devastating than Phailin's will be. I think the main danger from Phailin will be from its winds. I am particularly concerned about Phailin's wind damage potential in the city of Brahmapur (population 350,000), the 58th largest city in India. Brahmapur lies about ten miles inland, and will likely experience sustained hurricane-force winds for several hours. Phailin's flooding potential is another huge concern, as rainfall amounts of 6 - 12 inches will fall along a swath over 100 miles inland, triggering life-threatening flash flooding.
We have been seeing a lot of these kinds of storms in the last couple years. Not overly strong, just huge. Usagi, Sandy, even Katrina. And two more in this post:
Typhoon Nari hits the Philippines
Thirteen people were killed and 2.1 million people lost power on the main Philippine island of Luzon after Typhoon Nari hit on Friday night near midnight local time. Nari was a Category 3 typhoon with 115 mph winds a few hours before landfall. The core of the storm passed about 80 miles north of the capital of Manila, sparing the capital major flooding, but the storm dumped torrential rains in excess of ten inches to the northeast of Manilla. Passage over Luzon weakened Nari to a Category 1 storm, but it is already beginning to re-organize over the South China Sea between the Philippines and Vietnam. Nari is under moderate wind shear of 15 - 20 knots, which should keep intensification relatively slow, and increasing interaction with land will act to slow intensification on Sunday and Monday. Nari could be near Category 3 strength with 115 mph winds by Monday, and landfall in Vietnam is expected around 21 UTC on Monday.

Typhoon Wipha a threat to Japan
Category 1 Typhoon Wipha is intensifying as it heads northwest towards Japan, and the storm is expected to reach major Category 3 strength by Monday. By Tuesday, Wipha will recurve to the northeast and begin weakening, passing very close to Tokyo, Japan, sometime between 00 - 12 UTC on Wednesday. High winds and heavy rains from Wipha may be a concern for the Fukushima nuclear site, where workers continue to struggle with high radiation levels in the wake of the 2011 tsunami that damaged the reactors.
Posted by DaveH at October 12, 2013 2:30 PM