WesnWylie
(Weather Guru)
Fri Jul 16 2010 02:08 PM
Trough in the Gulf of Mexico

The NHC has given the area in the Gulf of Mexico, which has been talked about for the past few
days, a 10% chance of development. The trough appears to be situated in an area of lower shear
compared to other parts of the Western Atlantic basin; however, at this time, it is still not by any
means in favorable conditions. Since the trough is very elongated right now, any development
would likely not be in the near future. The official NHC text is below.

SHOWERS AND THUNDERSTORMS OVER THE NORTHERN GULF OF MEXICO ARE
ASSOCIATED WITH A TROUGH OF LOW PRESSURE. SURFACE PRESSURES ARE
NOT FALLING SIGNIFICANTLY...AND DEVELOPMENT...IF ANY...WILL BE SLOW
TO OCCUR AS THE SYSTEM MOVES SLOWLY WESTWARD OR WEST-NORTHWESTWARD
OVER THE NEXT COUPLE OF DAYS.

As far as the upper-level low near South Florida goes, the shear appears to be taking its toll on it.

Update: The NWS Office in Lake Charles, Louisiana mentions the trough in the gulf.

AS WE HAVE SEEN WITH PAST WAVES THIS YEAR...THE NAM MAY HAVE THE
RIGHT IDEA OF CLOSING OFF A WEAK CIRCULATION IN THE GULF.