Weatherdem's Weblog

Bridging climate science, citizens, and policy

Atlantic Tropical Weather Update 9/4/09

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Tropical Storm Erika decayed to a Tropical Depression yesterday and a remnant low today.  The center of circulation became detached from the convective thunderstorms, necessitating the change in status.  The thunderstorms continue to move west across the northeast Caribbean Sea.  There is a <30% chance of redevelopment in the next couple of days with the disturbance.

Much further east across the Atlantic Ocean, the tropical wave that moved from Africa to the Atlantic continues to look impressive.  The NHC has designated this disturbance as having a 30-50% chance of tropical development within the next 48 hours.  It consists of a broad region of relatively low pressure and some thunderstorms.  A good amount of organization will have to occur before it becomes a Tropical Depression.


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