The second image (above) was taken at the same time and shows a 3D perspective of Katrina via the vertical height of the precipi

The second image (above) was taken at the same time and shows a 3D perspective of Katrina via the vertical height of the precipitation-sized particles (as defined by the 15 dBZ isosurface). At few isolated tall towers (in red) are visible in the outer rain bands, but the core of Katrina is devoid of deep convection. This, coupled with the lack of intense rain near the center, indicates that the storm is not likely to intensify quickly very soon. TRMM is a joint mission between NASA and the Japanese space agency JAXA. + Credit: NASA/Hal Pierce (SSAI/NASA GSFC) and caption by Steve Lang (SSAI/NASA GSFC).