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Hurricane Season 2007: Barry (Eastern Atlantic)
Tropical Storm Barry Delivered Some Much Needed Rain to Southeast

On Tuesday, June 5, the remnants of Tropical Storm Barry were on their way to Canada after bringing some much needed rain to the U.S. East Coast.

The official start of the 2007 Atlantic hurricane season on June 1st was marked by the formation of Tropical Storm Barry in the Gulf of Mexico, the second named storm of the season. But, the news was good as Barry remained a weak tropical storm while delivering some much needed rain to Florida and parts of the Southeast, which are suffering from severe drought conditions and numerous wild fires.

Barry originated from a broad area of low pressure over the southeastern Gulf of Mexico. Following persistent showers and thunderstorms, the system was upgraded to a tropical storm at 21:00 UTC (5:00 pm EDT) on the 1st of June about 235 miles west of Key West, Florida. After a brief period of strengthening, Barry almost immediately began to suffer the effects of strong southwesterly wind shear brought on by an upper-level trough of low pressure extending down into the central Gulf of Mexico. As result, Barry quickly became disorganized as it was steered off to the northeast.

The Tropical Rainfall Measuring Mission satellite (known as TRMM) was placed into service in November of 1997. From its low-earth orbit, TRMM has been providing valuable images and information on tropical cyclones around the Tropics using a combination of passive microwave and active radar sensors, including the first precipitation radar in space.

This image was taken by TRMM at 3:55 am EDT June 2, 2007 as Barry was moving northeast in the southeastern Gulf of Mexico.

This image was taken by TRMM at 07:55 UTC (3:55 am EDT) June 2, 2007 as Barry was moving northeast in the southeastern Gulf of Mexico. The background image shows the horizontal pattern of rain intensities estimated from TRMM satellite data. Rain rates in the center swath are based on the TRMM Precipitation Radar (PR), and those in the outer swath on the TRMM Microwave Imager (TMI). The rain rates are overlaid on infrared (IR) data from the TRMM Visible Infrared Scanner (VIRS).

A tropical storm symbol marks the center of Barry. TRMM confirms that Barry was poorly organized. The low-level center of circulation (denoted by the tropical storm symbol) is displaced well to the southwest of the rain areas (green and blue areas). In fact, there is almost no rain in the immediate vicinity of the low-level center. This highly asymmetric structure is a result of the wind shear. Overlaid on this image is a 3D view of the rain shield courtesy of the TRMM PR. In general, storm cloud tops are not especially deep, although some slightly higher tops (enhanced in red) are evident near the stronger echoes shown in dark red in the cross section. At the time of this image, Barry was a weak tropical storm with maximum sustained winds reported at 45 knots (52 mph) by the National Hurricane Center.

Barry continued to move to the northeast and made landfall near Tampa Bay about 7 hours after the image was taken (11:00 am EDT). The system weakened as it moved diagonally across the state towards Jacksonville.

The TRMM-based, near-real time Multi-satellite Precipitation Analysis (MPA) at the NASA Goddard Space Flight Center monitors rainfall over the global Tropics.

MPA rainfall totals are shown here for the period 31 May to 4 June 2007 for Florida and the surrounding region.

MPA rainfall totals are shown above for the period May 31 to June 4, 2007 for Florida and the surrounding region. The track for Barry is also shown for reference. The highest rainfall totals for the period (shown in red) are on the order of 4 to 6 inches over south-central Florida and east-central Georgia. Lesser amounts on the order of 2 to 3 inches (green to yellow areas) cover most of peninsular Florida and extend through the eastern half of Georgia and into the Carolinas. Despite the beneficial rains, most of the area remains in a drought. TRMM is a joint mission between NASA and the Japanese space agency JAXA. Images produced by Hal Pierce (SSAI/NASA GSFC) and caption by Steve Lang (SSAI/NASA GSFC).

Barry and Barbara: A Double Landfall Weekend Kicks Off Hurricane Season

Image taken from GOES satellite movie of Tropical Storm Barry.
Click image to view movie. Credit: NASAGOES Project/NOAA

On Saturday, June 2, 2007 two tropical storms made landfall that morning within about one hour. Tropical Storm Barry made landfall near Tampa Bay and Tropical Storm Barbara near the border of Mexico and Guatemala in the eastern Pacific.

By Monday, Barbara was a memory, while Barry's remnants were moving along the northeast U.S. coast.

This movie of (former) Tropical Storm Barry was created with images from Geostationary Operational Environmental Satellite, (GOES-12), which is operated by the National Oceanic and Atmospheric Administration. The animation begins June 1 and runs through June 4, 2007 at 9:15 a.m. EDT (13:15 UTC), showing Barry's path across Florida into the Atlantic, and up the U.S. east coast.

Landfall in Florida occurred at 1100 a.m. EDT on Sat. June 2, as Barry's center was located near latitude 28.0 north, longitude 82.5 west or about North of Tampa, Florida and about 100 miles north-northwest of Ft. Myers, Florida. At that time, Barry's maximum sustained winds decreased to near 35 mph and Barry was downgraded to a tropical depression. The pressure was 1001 millibars, and wind and waves associated with Barry produced dangerous rip currents along portions of the Atlantic coast of the southeastern U.S. By 5 p.m. EDT on Saturday, Barry's poorly defined center had crossed Florida and was located near Jacksonville, Fla.

As he moved up the east coast over the next 3 days, Barry's remnants provided much needed rainfall to the very dry state of Florida, eastern Georgia, South Carolina, North Carolina, eastern Virginia and Maryland.

On Monday, June 04, 2007, Barry's remnants were bringing heavy rain through eastern New England. Flood watches were in effect for Mon. June 4 across northern portions of Delaware, southeastern Pennsylvania, much of New Jersey, parts of eastern New York, northwestern Connecticut, and western Massachusetts.

At 4 a.m. EDT, the 991 millibar low pressure center of Barry was located approximately 35 miles northeast of Ocean City, Maryland near 38.3 north, 74.4 west and was moving toward the north at approximately 23 knots (27 mph). Maximum sustained winds were estimated to be 20 mph mainly to the west of the center of circulation.

On the 4th, winds were gusting to 25 knots in the coastal Rhode Island waters including Point Judith and the Block Island Jetty. Wind gusts to 25 mph are also expected in Cape Cod. Even as remnants of a tropical storm, Barry is expected to bring the Boston area Periods of rain, with thunderstorms .Some of the storms could produce heavy rainfall. New rainfall amounts between a half and three quarters of an inch possible. Easterly winds on the 4th are expected between 15 and 20 mph.

Rob Gutro
Goddard Space Flight Center