The TRMM satellite showed that tropical Storm Gert still contained a few potent thunderstorms when it traveled directly over head on 16 August 2011 at 0005 UTC. As predicted by the National Hurricane Center (NHC) Gert passed to the east of Bermuda. Gert is now expected to accelerate movement toward the northeast and dissipate in the cold waters of the Atlantic Ocean.

The National Hurricane Center (NHC) has given an area of disturbed weather in the eastern Pacific Ocean a high probability (70%) of becoming a tropical cyclone. The TRMM satellite flew over this disturbance, located about 2,680km (~1,665 miles) east-southeastof the Hawaiian Islands, on 14 August 2011 at 2306 UTC. TRMM's Precipitation Radar (PR) revealed that numerous heavy thunderstorms in an area west of the low pressure center were dropping rain at the rate of over 50mm/hr (~2 inches). TRMM's PR also showed that a few thunderstorm towers near the center of the developing tropical cyclone

Tropical Storm Gert became the seventh named tropical cyclone in the Atlantic Ocean basin on Sunday August 14, 2011 at 1800 UTC ( 2 PM EDT). Gert was located southeast of Bermuda and appeared small but well organized when the TRMM satellite flew over on 15 August 2011 at 0101 UTC. A rainfall analysis from TRMM's Microwave Imager (TMI) shows a comma shaped area of moderate to heavy rainfall wrapping around the center of the small storm. The National Hurricane Center (NHC) expects Gert to intensify slightly while passing just to the east of Bermuda. Click here to see earlier TRMM information

Tropical Storm Franklin was only active for a short time but the TRMM satellite had a fairly good view when it passed above on Saturday August 13 at 0115 UTC. TRMM's Microwave Imager (TMI data shows that Franklin was dropping some light to moderate rainfall north-northeast of Bermuda. Franklin became extra-tropical a little later as it moved into the open waters of the north Atlantic.

The above image shows that remnants of tropical storm Emily were still generating a few strong thunderstorms over the Atlantic Ocean when the TRMM satellite passed above on 10 August 2011 at 0227 UTC. TRMM's Precipitation Radar (PR) revealed that a few of the tallest thunderstorm towers in Emily's remnants reached to heights of over 11 km (~6.8 miles).

The TRMM-based, near-real time Multi-satellite Precipitation Analysis (TMPA) at the NASA Goddard Space Flight Center provides estimates of rainfall over the global Tropics. TMPA rainfall totals associated with tropical storm Emily are shown for the period from 1 to 8 August 2011. Approximate locations for Emily are shown with appropriate red symbols and the storm's 0000Z positions were labeled. The TMPA analysis above indicates that Emily dropped the heaviest rainfall totals of close to 300 mm (~11.8 inches) in the Caribbean Sea south of the Dominican Republic. Tropical storm Emily formed near

Tropical Storm Emily dissipated after being disrupted by the mountains of Hispaniola but according to the National Hurricane Center (NHC), may revive again within a couple days while moving toward the northwest. The TRMM rainfall analysis on the right, from a TRMM orbit on 4 August 2011 at 0934 UTC ( 5:34 AM EDT), shows that heavy rainfall was being produced by the dissipating storm over southern Haiti and the Dominican Republic at that time. See more news about Tropical Storm Emily

The TRMM satellite saw tropical storm Emily again on 4 August 2011 at 0122 UTC (9:22 PM EDT). An analysis of TRMM's Microwave Imager (TMI) and Precipitation Radar (PR) data showed that Emily was dropping heavy rainfall of over 50mm/hr (~2 inches) south of the Dominican Republic and produce some showers in Haiti. Life threatening flooding and landslides are possible as Emily moves slowly westward.

Typhoon Muifa had wind speeds of about 95 kts (~109 mph) when the TRMM satellite passed above on 3 August 2011 at 1307 UTC. Muifa is now predicted to pass just to the south of the Japanese Island of Okinawa. The southern tip of the Okinawa is expected to be in the right front quadrant of the typhoon on 5 August 2011 where the highest winds are normally located. TRMM's Microwave Imager (TMI) and Precipitation Radar (PR) data were used in the rainfall analysis shown on the right. See earlier TRMM information about typhoon Muifa.