This image from 4:41 am EDT on Aug. 30, 2011 shows a 3D image of the storm looking west courtesy of the TRMM PR. TRMM showed the presence of some deeper convective towers (shown in red), within the storm. Towers closest to the center of the storm (the nearest) reach about 12.5 km, while those in the outer rain band (farthest way) reach up to 15 km. Credit: SSAI/NASA, Hal Pierce...

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  On Sunday, August 21, 2011, Irene was only a tropical storm, and the TRMM Precipitation Radar reveals that it had an impressive hot tower that reached over 9.5 miles high (15.75 km). Strong radar signals, perhaps from large ice particles are shown in red at the base of the hot towers, which suggests strong updrafts were present in order for the ice particles to have time to grow large. Strong rain had yet to completely encircle the eye, as is typical of tropical storms.     On Tue...

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This 3-D image of Major Hurricane Adrian was created from data on June 9 and show thunderstorms dropping rain at a rate of over 50 mm/hr (~2 inches) in a nearly circular eye wall. The PR also indicated that some thunderstorms in the eye wall were shooting up to heights above 15 km (~9.3 miles). Credit: NASA/SSAI: Hal Pierce...

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This metal chair shows the raw power of 200+ mph winds... That's concrete it is embedded in......

It is hard to imagine that Yosemite is only 60 miles from Fresno, CA -- where it never ever snows and rarely gets below 32 F in the dead of winter. This is an incredible video!  It only happens in March and April.  I have never seen a creek come to a complete stop like this before and start up again someplace else.   http://www.youtube.com/watch_popup?v=9V9p4mFEYXc&vq=medium#t=15  ...

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This TRMM satellite 3-D image shows that some thunderstorm towers near TSO4W's center of circulation were punching up to heights of over 16 km (~9.9 miles) above the ocean's surface. Credit: NASA/SSAI, Hal Pierce   Tropical Storm 04W formed from the low pressure System 98W this morning in the northwestern Pacific. NASA's Tropical Rainfall Measuring Mission (TRMM) satellite watched the towering thunderstorms in the center of the tropical storm grow to almost 10 miles (16 km) high as it po...

Bright reds, oranges and yellows show tracks of where rotation was strongest as detected by NWS Doppler radars during the April 27, 2011 tornado outbreak.   NSSL has released an image documenting the rotation tracks of the devastating tornadoes on April 27. Bright reds and yellows show more intense circulations. The image of the rotation tracks was produced by the On Demand Severe Weather Verification System, part of NSSL’s Warning Decision Support System – Integrated Information (WDSS-II)...

During the 2010 hurricane season, NASA deployed its piloted DC-8 and WB-57, and unmanned Global Hawk aircraft in a massive effort to collect as much data as possible, arming hurricane researchers with the information needed to predict the growth and intensification of hurricanes....

This time-lapse video shows Hurricane Karl as seen from NASA's unmanned Global Hawk aircraft during a 25.3-hour flight Sept. 16-17, 2010. Eight of the Global Hawk's 20 passes over the hurricane were flown in coordination with NASA's DC-8 and WB-57 science aircraft flying below. Global Hawk was flying as part of NASA's GRIP mission to study how tropical storms form and develop. (No audio.)...

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