TRMM PR Slices Through Sean

The TRMM satellite had a good look at tropical storm Sean when it flew over on 10 November 2011 at 0541 UTC (00:41 AM EST). TRMM's Precipitation Radar (PR) data were used in the image above to show a 3-D cross section through Sean. TRMM's PR revealed that heights of storms in the edge of Sean's center of circulation were reaching to about 11km (~6.8 miles). Radar Reflectivity values of up to 46.0 dBZ found in these storms also showed that rainfall was heavy in that area. The "top down" satellite view above shows that those storms in Sean's northwestern quadrant were the most powerful. The rest

TRMM Sees Subtropical Storm Sean

The National Hurricane Center (NHC) upgraded a low pressure center in the Atlantic Ocean to subtropical storm Sean at 0900 UTC ( 4:00 AM EDT). The TRMM satellite flew directly above Sean a little earlier on 8 November 2011 at 0731 UTC ( 2:31 AM EDT) collecting data used in the precipitation analyses shown. TRMM Precipitation Radar (PR) data in the 3-D display above show that scattered moderate storms within Sean were reaching maximum heights of only about 11km (~6.8 miles). The "top down" view on the right above shows that Sean was well organized but most rainfall was of low to moderate