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Man-yi (Northwest Pacific Ocean)
September 16, 2013

Two NASA Satellites Track Typhoon Man-yi Across Japan  [image-78]

NASA's Aqua and Terra satellites captured images as Typhoon Man-yi made landfall in southern Japan and moved across the big island.

Typhoon Man-yi was approaching Japan when NASA's Aqua satellite passed overhead and captured a visible image on Sept. 15 at 0410 UTC/12:10 a.m. EDT. Man-yi weakened to a tropical storm as it quickly crossed Japan dropping heavy rainfall and causing deadly mudslides when NASA's Terra satellite passed overhead on Sept. 16.  Man-yi is now headed northeast into the Sea of Okhotsk.[image-94]

When Aqua passed overhead, a visible image was taken by the Moderate Resolution Imaging Spectroradiometer or MODIS instrument. The image showed most of the powerful thunderstorms with heavy rainfall were wrapping around the center of Tropical Storm Man-yi, northwest and southeast of the center. 

On Sept. 16 at 0140 UTC/Sept. 15 at 9:40 p.m. EDT Tropical Storm Man-yi covered two-thirds of the big island of Japan when NASA's Terra satellite passed overhead and captured a visible image of the storm.

Man-yi took just a day to cross over Japan before exiting into the northwestern Pacific Ocean. The Joint Typhoon Warning Center forecast track on Sept. 16 takes Man-yi into the Sea of Okhotsk by Sept. 17.

Man-yi strengthened to a typhoon just before making landfall. It dropped heavy rainfall totals, created flooding in Kyoto, damaged homes and killed two people, according to the Associated Press. The Shiga and Fukui Prefectures reported mudslides. When Man-yi made landfall, it had maximum sustained winds near 100 mph (162 kph).  According to the Japanese Meteorological Agency, Man-yi was dropping as much as 3 inches/76 mm of rain per hour.

On Sept. 16 at 0900 UTC/5 a.m. EDT/ 6 p.m. Tokyo time, Man-yi had maximum sustained winds near 50 knots/57.5 mph/92.6 kph. It was centered near 39.0 north and 142.6 east, about 169 nautical miles/194 miles/313 km south of Misawa, Japan. Man-yi is speeding to the northeast at 33 knots/38 mph/61 kph. Strong convection was weakening quickly over the center of circulation after moving over eastern Japan.

Warnings remain in effect for Tohoku and eastern Hokkaido on Sept. 16 as Man-yi moves past those prefectures today. Hokkaido is Japan's northernmost prefecture, and second largest island. Man-yi is transitioning into an extra-tropical storm as it heads back over cooler ocean waters of the northwestern Pacific Ocean.

Text credit: Rob Gutro
NASA's Goddard Space Flight Center

 


Sept. 13, 2013 - NASA Satellite Sees Two Vortices Circling Newborn Tropical Storm Man-yi's Center  [image-51]

NASA's Terra satellite passed over newborn Tropical Storm Man-yi and captured and image that clearly showed two vortices rotating around a large center of circulation. Man-yi formed on Sept. 12 in the northwestern Pacific Ocean as the sixteenth tropical depression and by Sept. 13 it strengthened into a tropical storm.

When NASA's Terra satellite passed over newborn Tropical Storm Man-yi in the northwestern Pacific Ocean on Sept. 13 at 01:15 UTC, the Moderate Resolution Imaging Spectroradiometer or MODIS instrument captured a visible image of the storm. The MODIS image showed the bulk of clouds and showers on the northwestern and southeastern sides of the storm, but those were associated with the two different vortices or whirling masses of clouds and showers, that are rotating around the storm's actual center. Satellite data showed bands of strong thunderstorms around the southeastern vortex, which is the vortex with the strongest winds. Thunderstorms associated with the northwestern vortex are also strengthening as convection deepens.

Forecasters at the Joint Typhoon Warning Center expect these two different vortices will combine with the larger, broad central circulation, allowing Man-yi to consolidate. 

On Sept. 13 at 0900 UTC/5 a.m. EDT, Tropical Storm Man-yi had maximum sustained winds near 35 knots/40.2 mph/64.8 kph. It was moving to the west-northwest at 11 knots/12.6 mph/20.3 kph. Man-yi was centered near 22.5 north and 141.0 east, just 157 nautical miles/180.7 miles/290.8 km south of the island of Iwo To, Japan.

Man-yi is expected to intensify to typhoon strength as it curves from northwest to northeast. On the forecast track issued by the Joint Typhoon Warning Center, Man-yi is expected to approach Tokyo on Sept. 16 as a typhoon.

Text credit:  Rob Gutro
NASA's Goddard Space Flight Center

Image Token: 
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Man-yi in the Pacific
NASA's Terra satellite observed two vortices circling a larger center of newborn Tropical Storm Man-yi on Sept. 13 at 01:15 UTC.
Image Credit: 
NASA Goddard MODIS Rapid Response Team
Image Token: 
[image-51]
Man-yi over Japan Sept. 16
Tropical Storm Man-yi covered two-thirds of the big island of Japan when NASA's Terra satellite passed overhead and captured a visible image on Sept. 16 at 0140 UTC/Sept. 15 at 9:40 p.m. EDT.
Image Credit: 
NASA Goddard MODIS Rapid Response Team
Image Token: 
[image-78]
Man-yi over Japan Sept. 15
Typhoon Man-yi was approaching Japan when NASA's Aqua satellite passed overhead and captured a visible image on Sept. 15 at 0410 UTC/12:10 a.m. EDT.
Image Credit: 
NASA Goddard MODIS Rapid Response Team
Image Token: 
[image-94]
Page Last Updated: September 16th, 2013
Page Editor: Lynn Jenner