Henri born in Eastern Atlantic... could be short-lived

October 7, 2009
NASA's Aqua satellite AIRS instrument captured an infrared image of Tropical Storm Henri's clouds on Oct. 7 at 1:29 a.m. EDT. Henri already had some strong convective activity in his center as indicated by high thunderstorms (in purple) that were as cold as -63F. Credit: NASA JPL, Ed Olsen

Forecasters were watching a storm they designated as 91 yesterday, October 6, until it organized into a tropical cyclone east of the Leeward Islands around 5 p.m. EDT. It was then named "Tropical Storm Henri," the eighth named tropical cyclone of the Atlantic hurricane season.

On Wednesday, October 7 at 11 a.m. EDT, Henri had maximum sustained winds near 45 mph after reaching a peak sustained wind speed of 50 mph at 5 a.m. EDT today. Henri's center was located about 375 miles east of the Northern Leeward Islands, near 18.9 North and 57.4 West. Estimated minimum central pressure is 1007 millibars.

Henri is moving west-northwest near 15 mph and should continue in that direction for the next day before turning west. A subtropical ridge (an area of high pressure) over the Western will be steering Henri over the next day or two. That area of high pressure will press Henri in a west or west-northwesterly direction. Over time, the ridge will become stronger, forcing Henri in a more westerly direction.

NASA's Aqua satellite AIRS instrument captured an of Henri's clouds on October 7 at 1:29 a.m. EDT. Henri already had some strong convective activity in his center as indicated by high thunderstorms (in purple) that were as cold as -63F.

The National Hurricane Center noted this morning, "Satellite imagery showed that the center of Henri has become exposed to the west of a mass of deep convection." In addition to the center being exposed, further weakening is likely due to increasing southwesterly wind shear over the next day or two.

Source: JPL/NASA (news : web)

Explore further: A sudden Tropical Storm Grace explodes in far Eastern Atlantic

Related Stories

NASA sees Tropical Storm Danny form, US East Coast on watch

August 26, 2009

An area of low pressure east of the Bahamas has now powered up into Tropical Storm Danny, and NASA's Aqua satellite captured his strengthening thunderstorms in infrared imagery. Danny came together this morning, August 26, ...

NASA microwave image sees eyewall opening in Hurricane Linda

September 10, 2009

Linda managed to power up to hurricane status at 11 p.m. EDT last night (September 9), and she's running into cooler waters and wind shear, so she's not expected to hold that strength through tomorrow. Microwave imagery from ...

Recommended for you

Study finds pollution is deadlier than war, disaster, hunger

October 20, 2017

Environmental pollution—from filthy air to contaminated water—is killing more people every year than all war and violence in the world. More than smoking, hunger or natural disasters. More than AIDS, tuberculosis and ...

Carbon coating gives biochar its garden-greening power

October 20, 2017

For more than 100 years, biochar, a carbon-rich, charcoal-like substance made from oxygen-deprived plant or other organic matter, has both delighted and puzzled scientists. As a soil additive, biochar can store carbon and ...

Cool roofs have water saving benefits too

October 20, 2017

The energy and climate benefits of cool roofs have been well established: By reflecting rather than absorbing the sun's energy, light-colored roofs keep buildings, cities, and even the entire planet cooler. Now a new study ...


Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.