NASA's TRMM satellite flew directly above tropical storm Andrea on June 5 at 2234 UTC (6:34 p.m. EDT) just an hour after the National Hurricane Center named the storm. The heaviest rainfall of 124.5 mm per hour (4.9 inches per hour) was found on Andrea's southeast side. NASA's TRMM satellite passed over Tropical Storm Andrea right after it was named, while NASA's Terra satellite captured a visible image of the storm's reach hours beforehand. TRMM measures rainfall from space and saw that rainfall rates in the southern part of the storm was falling at almost 5 inches per hour. NASA's Terra satellite passed over Tropical Storm Andrea on June 5 at 16:25 UTC (12:25 p.m. EDT) and the Moderate Resolution Imaging Spectroradiometer or MODIS instrument, captured a visible image of the storm. At that time, Andrea's clouds had already extended over more than half of Florida. At 8 p.m. EDT on Wednesday, June 5, System 91L became the first tropical storm of the Atlantic Ocean hurricane season. Tropical Storm Andrea was centered near 25.5 North and 86.5 West, about 300 miles (485 km) southwest of Tampa, Fla. At the time Andrea intensified into a tropical storm, its maximum sustained winds were near 40 mph (65 kph). Caption by Rob Gutro of NASA's Goddard Space Flight Center.