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05B (Northern Indian Ocean)
November 10, 2014

[image-96]NASA Sees System 05B Fizzle in Bay of Bengal

System 05B degenerated into a remnant low pressure area on Nov. 8 and lingered near the east-central coast of India for two days before dissipating on Nov. 10.

The tropical cyclone's western edge spread over land on Sunday, Nov. 9 while the center of the low-level circulation remained over open waters of the Bay of Bengal. On that day, 05B's remnants were centered near 14.0 north latitude and 83.8 east longitude, about 215 miles east-northeast of Chennai, India.

Infrared imagery from satellites on Nov. 9 indicated that the low-level circulation center of the storm was exposed to outside winds. There was some disorganized deep flaring convection (rising air that forms the thunderstorms that make up a tropical cyclone) and thunderstorm development over the western quadrant, but that didn't last the day. The storm's circulation center had also become elongated, which is an indication the storm was weakening. Tropical cyclones need to maintain a circular rotation in order to strengthen. When a storm elongates, its rotation can be likened to an automobile tire that is low on air, no longer circular and cannot spin as fast.

NASA's Aqua satellite passed over Tropical Cyclone 05B's remnants on Nov. 9. The Moderate Resolution Imaging Spectroradiometer or MODIS instrument aboard captured a visible image that showed the center of circulation still over open waters of the Northern Indian Ocean/Bay of Bengal, with the western-most clouds north of Chennai.

On Nov. 9, the Joint Typhoon Warning Center noted that Tropical Cyclone 05B had a low chance for regenerating.  By Monday, Nov. 10, the remnants of Tropical Cyclone 05B dissipated near 14.0 north longitude and 83.8 east latitude and there is no longer a chance for regeneration. 

Rob Gutro
NASA's Goddard Space Flight Center


[image-69]Nov. 07, 2014 - NASA-NOAA's Suomi NPP Satellite Sees Tropical Cyclone 05B Headed to India

Tropical Cyclone 05B was meandering in the Bay of Bengal on Nov. 8, but forecasters expect it to move west and head toward east-central India for landfall. NASA-NOAA's Suomi NPP satellite captured a visible image of the tropical storm off India's coast.

When Suomi NPP flew over Tropical Cyclone 05B (TC05B) on Nov. 7 at 08:09 UTC (3:09 a.m. EST), the Visible Infrared Imaging Radiometer Suite or VIIRS instrument aboard captured a visible image of the storm. The VIIRS image showed a band of thunderstorms wrapping into the center from the northern quadrant, and fragmented bands of thunderstorms around the rest of the storm.

VIIRS is a scanning radiometer that collects visible and infrared imagery and "radiometric" measurements. Basically it means that VIIRS data is used to measure cloud and aerosol properties, ocean color, sea and land surface temperature, ice motion and temperature, fires, and Earth's albedo (reflected light).

At 1400 UTC (9 a.m. EST) Tropical Cyclone 05B's (TC05B) maximum sustained winds were near 35 knots (40.2 mph/64.8 kph). It was located near 14.3 north latitude and 87.4 east longitude, about 333 nautical miles (383.2 miles/616.7 km) southeast of Visakhapatnam, India. TC05B was moving to the north at 2 knots (2.3 mph/3.7 kph), and is expected to turn to the west.

The India Meteorological Department's Regional Specialised Meteorological Centre (RSMC) forecast noted that light to moderate rainfall would occur at a few places on Nov. 8 and on Nov. 9 would spread over a larger area over Andhra Pradesh and adjoining north coastal Tamil Nadu as TC05B nears.  RSMC calls for sustained winds between 30 and 40 kph with higher gusts along and off the coasts of Andhra Pradesh and north Tamilnadu. Sea conditions are expected to be rough along those coasts both days and fishermen were advised not to venture out to sea. For updated forecasts from RSMC, visit: http://www.rsmcnewdelhi.imd.gov.in.

Tropical Cyclone 05B is forecast to continue moving west and strengthen a little before making landfall between Visakhapatnam and Chennai in eastern India on November 9.

Rob Gutro
NASA's Goddard Space Flight Center


[image-50]Nov. 06, 2014 - NASA See Birth of Tropical Cyclone 5B in Bay of Bengal

The fifth tropical cyclone of the Northern Indian Ocean season formed in the Bay of Bengal as NASA's Terra satellite passed overhead and captured an image of the storm.

When Terra passed over Tropical Cyclone 5B on Nov. 6 at 05:05 UTC (12:05 a.m. EST), the MODIS instrument aboard took a visible image of the storm. The MODIS image showed a concentrated storm with strong thunderstorms circling tight around the center and in the northeastern quadrant.

By 1500 UTC (10 a.m. EST), Tropical Cyclone 5B was located near 13.4 north latitude and 87.9 east longitude. That's about 380 nautical miles (437.3 miles/703.8 km) southeast of Visakhapatnam, India. Tropical Cyclone 5B had maximum sustained winds near 35 knots (40.2 mph/64.8 kph). It was moving slowly to the south-southeast.

Forecasters at the Joint Typhoon Warning Center said that an upper-level (atmospheric) analysis indicates the system remains in a generally favorable environment with moderate vertical wind shear and good outflow. Additionally, sea surface temperatures are relatively high in this region, which will help it maintain strength and slightly intensify over the next two days.

JWTC forecasters expect Tropical Cyclone 5B to make landfall near Chennai on Nov. 9 and dissipate over land quickly.

Rob Gutro
NASA's Goddard Space Flight Center

Terra image of 05B
NASA's Terra satellite flew over Tropical Cyclone 5B in the Bay of Bengal on Nov. 6, 2014.
Image Credit: 
NASA Goddard MODIS Rapid Response Team
Image Token: 
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Suomi NPP Image of 05B
NASA-NOAA's Suomi NPP satellite flew over Tropical Cyclone 05B on 3:09 a.m. EST and the VIIRS instrument saw fragmented bands of thunderstorms around the storm.
Image Credit: 
NASA/NOAA
Image Token: 
[image-69]
MODIS image of 05B
NASA's Aqua satellite passed over Tropical Cyclone 05B's remnants on Nov. 9 when the center of circulation was still over open waters and the western-most clouds extended north of Chennai.
Image Credit: 
NASA/NRL
Image Token: 
[image-96]
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Page Last Updated: November 10th, 2014
Page Editor: Lynn Jenner