NASA imagery reveals strength in Tropical Storm Michael's 'arm'

Sep 05, 2012
This is Tropical Storm Michael on Sept. 5 at 0611 UTC (2:11 a.m. EDT). Noticed the strongest thunderstorms and coldest cloud top temperatures (purple) around the center of circulation and in a band of thunderstorms to the northeast of the center. Credit: NASA JPL, Ed Olsen

NASA's Aqua satellite shows that tiny Tropical Storm Michael had some strong thunderstorms wrapped around its center and in a band of thunderstorms in its northeastern "arm" or quadrant.

The Atmospheric Infrared Sounder (AIRS) instrument that flies aboard NASA's Aqua satellite captured in of Tropical Storm Michael on Sept. 5 at 0611 UTC (2:11 a.m. EDT) and noticed the strongest thunderstorms and coldest cloud top temperatures around the center of circulation and in a band of thunderstorms to the northeast of Michael's center. Those cloud top temperatures were as cold as -63 Fahrenheit (-52 Celsius) and indicated strong thunderstorms with heavy rainfall.

On Sept. 5 at 11 a.m. EDT, Michael had near 50 mph (85 kmh). The area of have expanded over the last two days and now extend outward up to 60 miles (95 km). Michael's center was about 1155 miles (1,855 km) west-southwest of the Azores islands, near latitude 28.3 north and longitude 43.3 west. Michael is moving toward the northeast near 6 mph (9 kmh) and is expected to continue in that direction for the next couple of days.

The National Hurricane Center expects the that has been battering Michael over the last couple of days to relax, which may allow Michael to become a hurricane by Friday, Sept. 7.

Explore further: Busy Pacific, light Atlantic hurricane season draws to end

add to favorites email to friend print save as pdf

Related Stories

Frigid cloud top temperatures show Hurricane Dora's power

Jul 20, 2011

Extremely cold cloud top temperatures in thunderstorms are an indication of the strength they possess, and infrared satellite data from NASA revealed a large area of very cold and powerful thunderstorms around ...

Infrared NASA imagery shows a weaker Tropical Storm 13W

Aug 07, 2012

Infrared satellite imagery from shows how cold cloud top temperatures are in a tropical cyclone, and recent imagery from NASA's Aqua satellite shows the cloud-top temperatures have been warming in Tropical ...

Recommended for you

Better forecasts for sea ice under climate change

8 hours ago

University of Adelaide-led research will help pinpoint the impact of waves on sea ice, which is vulnerable to climate change, particularly in the Arctic where it is rapidly retreating.

"Ferrari of space' yields best map of ocean currents

16 hours ago

A satellite dubbed the "Ferrari of space" has yielded the most accurate model of ocean circulation yet, boosting understanding of the seas and a key impact of global warming, scientists said Tuesday.

Researcher studies deformation of tectonic plates

19 hours ago

Sean Bemis put his hands together side by side to demonstrate two plates of the earth's crust with a smooth boundary running between them. But that boundary is not always smooth and those plates do not always ...

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.