NASA sees Tropical Storm Nanauk's soaking swan song

Jun 13, 2014
NASA sees Tropical Storm Nanauk's soaking swan song
This TRMM satellite 3-D image shows that Tropical Storm Nanauk contained powerful towering thunderstorms that were reaching heights of up to 16.8 km (10.4 miles) on June 11, 2014. Credit: SSAI/NASA, Hal Pierce

Tropical Storm Nanauk was dissipating in the Arabian Sea on Friday, June 13 as it ran into increasing vertical wind shear, dry air moving into the tropical cyclone and cooler sea surface temperatures. NASA's TRMM satellite observed the soaking rains the day before that marked Nanauk's "swan song."

Tropical storm Nanauk formed west of India on June 10, 2014 and since then has been moving toward the northwest over the open waters of the Arabian Sea. NASA and the Japan Aerospace Exploration Agency's Tropical Rainfall Measuring Mission's (TRMM) satellite found that Nanauk contained powerful storms dropping rain at a rate of over 247.3 mm/ 9.7 inches per hour when viewed on June 11, 2014 at 1549 UTC (11:49 a.m. EDT).

At NASA's Goddard Space Flight Center in Greenbelt, Maryland an analysis of rainfall from TRMM's Microwave Imager (TMI) and Precipitation Radar (PR) were overlaid on a 1530 UTC (11:30 a.m. EDT) enhanced infrared image from the European Space Agency's METEOSAT-7 satellite. TRMM PR data were used to create a 3-D view that showed that Nanauk contained powerful towering thunderstorms that were reaching heights of up to 16.8 km (10.4 miles).

Friday the thirteenth proved unlucky for Nanauk as environmental conditions worsened and tore the storm apart. By 09:00 UTC (5 a.m. EDT), the Joint Typhoon Warning Center (JTWC) issued their final warning on the tropical cyclone. At that time, maximum sustained winds were near 35 knots (40 mph/65 kph) and weakening quickly. The storm's last official position was at 21.3 north latitude and 64.3 east longitude, about 285 nautical miles (328 miles/528 km) southwest of Karachi, Pakistan. At that time the dissipating storm was moving to the north at 9 knots (10 mph/~17 kph).

This video is not supported by your browser at this time.
This TRMM satellite flyby animation shows that Tropical Storm Nanauk contained powerful towering thunderstorms that were reaching heights of up to 16.8 km (10.4 miles) on June 11, 2014. Credit: SSAI/NASA, Hal Pierce

JTWC is a joint U.S. Navy and U.S. Air Force office that includes Navy, Air Force and civilian meteorologists and satellite analysts. The center, located in Pearl Harbor, Hawaii, provides forecasts, advisories and warnings on (the generic name for a typhoon, cyclone, hurricane, tropical storm or tropical depression).

JTWC forecasters examined the upper level of the atmosphere and noted that Nanauk was analysis in an area of strong (40-50 knot/46-57 mph/74-92 kph) northeasterly that was tearing the system apart.

Explore further: A NASA view of Tropical Cyclone Nanauk in the Arabian Sea

add to favorites email to friend print save as pdf

Related Stories

NASA gets two last looks at Tropical Cyclone Jack

Apr 22, 2014

Tropical Cyclone Jack lost its credentials today, April 22, as it no longer qualified as a tropical cyclone. However, before it weakened, NASA's TRMM satellite took a "second look" at the storm yesterday.

TRMM and Aqua satellites peer into Tropical Storm Amanda

May 28, 2014

Hurricane Amanda has weakened to a tropical storm, but not before NASA's TRMM satellite took a look under its clouds at the rate of heavy rainfall it was generating. After weakening to a tropical storm, NASA's ...

Recommended for you

NASA sees Depression 12-E become Tropical Storm Lowell

20 hours ago

In less than 24 hours after Tropical Depression 12-E was born in the eastern Pacific Ocean it strengthened into Tropical Storm Lowell. NOAA's GOES-West and NASA's Aqua satellite captured infrared images of ...

Why global warming is taking a break

22 hours ago

The average temperature on Earth has barely risen over the past 16 years. ETH researchers have now found out why. And they believe that global warming is likely to continue again soon.

User comments : 0