Wednesday 9 March
MORE TORNADOES OVER THE SOUTHERN UNITED STATES
The TRMM satellite flew over tornadic thunderstorms for the
second time in less than a week on 9 March 2011 at 1208 UTC ( 6:08 AM CST).
By 1652Z (10:52 AM CST) NOAA had received 9 tornado sighting over
Louisiana, Alabama and Florida. A precipitation analysis from
TRMM's Microwave Imager (TMI) and Precipitation Radar (PR) (in the lighter swath)
again showed extremely heavy rainfall near tornadic activity.
TRMM's Precipitation Radar (PR) data were used in the image on the upper right
to show a 3-D slice through a possible tornado.
Click to see a FLYBY movie of the 3-D slice through the tornado.
Saturday 5 March
TRMM SEES DEADLY LOUISIANA TORNADOES
The TRMM satellite was flying high over head when it
passed above tornadoes occurring in the state of Louisiana on 5 March 2011 at 1411 UTC (8:11 AM CST).
The National Oceanic and Atmospheric Administration (NOAA)
reported that seven tornadoes were spotted in Louisiana
on that date. These tornadoes caused at least 15 injuries and one death
with a tornado that hit in the northwest section of Rayne, Louisiana.
The image on the left above shows a precipitation analysis
using data collected with that TRMM orbit. TRMM's Microwave Imager (TMI) and Precipitation
Radar (PR) (in the lighter swath) showed
that extremely heavy rainfall was falling from these storms.
The image on the right above shows a view from the east using
TRMM Precipitation Radar (PR) data. This 3-D slice through
the storm shows that one of these powerful tornadic thunderstorms
had intense echoes reaching as high as 15km (~9.3 miles).
Click to see a FLYBY movie of the 3-D Precipitation Radar image.
Images and Captions by Hal Pierce (SSAI/NASA GSFC)