07 September 2010

Earl makes landfall in Nova Scotia, Fiona dissipates, Hermine makes landfall in Mexico as a TS, remnants of Gaston entering the Caribbean, west African coast active again...

From Gus Alaka: 
Earl weakened from a Cat. 1 hurricane to a tropical storm and passed 
about 90 miles SSE of Nantucket Island, Massachusetts.  Most of the 
nasty weather associated with Earl was located to the east of the 
center, which allowed SE Massachusetts to escape mostly unscathed.  
Nantucket Island experienced gusts to about 55 mph and a few inches of 
rain.  Earl continued to race to the NE and made landfall at Western 
Head, Nova Scotia at 14Z on Saturday with (60 kt, 962 mb).  With a large 
wind field, much of the province experienced strong tropical storm force 
winds and heavy rain.  However, Earl had already begun an acceleration 
to the NE and did not linger long enough to cause any serious damage.  
However, Maritime Electric reported that 9400 Nova Scotian homes were 
without power at one point during the storm.  Earl quickly raced into 
the Gulf of Saint Lawrence, where it was pronounced extratropical at 3Z 
on 9/5.

Fiona continued to weaken and bear down on Bermuda late last week.  
However, the unfavorable environmental conditions got the best of the 
system, and Fiona degenerated into a remnant low before reaching 
Bermuda.  At the last advisory, Fiona was only 60 miles south of 
Bermuda.  The island likely experienced some gusty winds and isolated rain.

TD10 formed in the SW Gulf of Mexico late Sunday evening.  By Monday 
morning, TD10 intensified into Hermine, the 8th Atlantic tropical storm 
of 2010.  Moving generally to the NNW, Hermine intensified from (35 kt, 
1001 mb) at 9Z to (55 kt, 991 mb) at 0Z.  Hermine was still intensifying 
at landfall, and if the track had been slightly more N (rather than 
NNW), Hermine may have had a chance to become the 4th hurricane of the 
Altantic basin.  Hermine has since moved inland and will bring heavy 
rains (4"-8") and flooding to south Texas as the center moves to the N 
at ~15 kts.  Hermine, still a minimal tropical storm, is forecast to 
continue weakening and should be a tropical depression at the next 

I was able to find this Doppler Radar image of Hermine at landfall:
There are no other named storms or depressions in the Atlantic.  
However, there are a few features of interest.

The remnant low of Tropical Storm Gaston is entering the NE Caribbean.  
There has been some convection associated with the remnant low, although 
NHC does not expect further development from this system.  To provide 
more support to NHC's assertion, a number of models (GFS, ECMWF, 
GFDL...) do not redevelop Gaston either.  Nonetheless, this system will 
be monitored for any signs of organization.

A potent tropical wave has just exited the west African coast.  It will 
be monitored for development as it travels W.

Please visit my tropical Atlantic headquarters.

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