08 September 2010

Hermine dissipating, Igor forms in the far eastern Atlantic...

From Gus Alaka: 
Tropical Depression Hermine (20 kts, 1005 mb) is located in central
north Texas and is bringing heavy rains to much of the state.  Most of
the heavy rain occurred to the east of the center, as the onshore flow
helped feed moisture into the system.  Much of the region received 3"+
of rain from 12Z yesterday to 12Z today.  A few isolated areas (near
Austin, TX) received 10"+ during the same time frame.  Hermine should be
extratropical by tonight.

1-Day Rainfall - Texas


A vigorous tropical wave moved off the African coast yesterday.  This
system maintained deep convection and the circulation became better
defined.  Thus, Tropical Storm Igor, the 9th named storm of the 2010
Atlantic hurricane season, formed in the far eastern Atlantic,
approximately 95 miles SE of the southern Cape Verde Islands.  The
initial intensity is set to (35 kts, 1005 mb) and it is currently moving
W at 7 kts.  Igor is the 2nd tropical storm to form without first being
a tropical depression (Colin was the other).  Presently, tropical storm
watches are out for the southern Cape Verde Islands of Maio, Sao Tiago,
Fogo, and Brava.

Igor's forecast calls for slow strengthening over the next couple of
days, with an increase in motion as it moves generally to the W.  NHC
has Igor becoming a hurricane in 72 hours, which is slower than some of
the models, due to the presence of vertical wind shear.  Igor is
forecast to turn to the WNW in a few days in response to a weakness in
the subtropical ridge.  However, if the ridge does not weaken as
forecast, Igor could be of interest to the Leeward Islands in a week or
so, but let's not get ahead of ourselves.


The remnants of Gaston continue to race through the Caribbean.  Although
convection is present with the system, it is quite disorganized.  Models
do not call for the redevelopment of this system.

Please visit my tropical Atlantic headquarters.

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