Tropical Depression Gaston Is No More - For Now

Bulletin
Tropical Depression Gaston Advisory Number 6
Nws Tpc/National Hurricane Center Miami Fl Al092010
500 Pm Ast Thu Sep 02 2010

...Gaston Becomes A Remnant Low Over The East-Central Tropical
Atlantic...

Summary Of 500 Pm Ast...2100 Utc...Information
----------------------------------------------
Location...13.5n 39.5w
About 1015 Mi...1635 Km W Of The Southernmost Cape Verde Islands
About 1465 Mi...2355 Km E Of The Lesser Antilles
Maximum Sustained Winds...30 Mph...45 Km/Hr
Present Movement...W Or 270 Degrees At 5 Mph...7 Km/Hr
Minimum Central Pressure...1009 Mb...29.80 Inches

Watches And Warnings
--------------------
There Are No Coastal Watches Or Warnings In Effect.

Discussion And 48-Hour Outlook
------------------------------
At 500 Pm Ast...2100 Utc...The Remnant Low Of Gaston Was Located
Near Latitude 13.5 North...Longitude 39.5 West. The Low Is Moving
Toward The West Near 5 Mph...7 Km/Hr...And A Continued Westward
Motion With Some Increase In Forward Speed Is Expected During The
Next 48 Hours.

Maximum Sustained Winds Are Near 30 Mph...45 Km/Hr...With Higher
Gusts. Little Change In Strength Is Likely During The Next Couple
Of Days.

Estimated Minimum Central Pressure Is 1009 Mb...29.80 Inches.

Hazards Affecting Land
----------------------
None.

Next Advisory
-------------
This Is The Last Public Advisory Issued By The National Hurricane
Center On Gaston...Unless Regeneration Occurs.

Forecaster Roberts/Pasch

Tropical Depression Gaston Discussion Number 6
Nws Tpc/National Hurricane Center Miami Fl Al092010
500 Pm Ast Thu Sep 02 2010

Conventional Satellite Imagery And Dropsondes From The National
Science Foundation G-V Aircraft Indicate That Gaston Has
Degenerated Into A Remnant Low Pressure Area. The System Consists
Of A Weak Low-Level Circulation Without Organized Deep Convection.
Maximum Winds Are Estimated To Be 25 Kt...And These Winds Are Likely
Occurring Only In A Small Area Of Showers Well To The North Of The
Center.

The Remnant Low Is Situated To The South Of A Weakness In The
Subtropical Ridge...And Is Drifting Westward. The Large-Scale
Models Predict Some Building Of Ridge To The North Of The Cyclone
Over The Next Few Days. Therefore...The Official Forecast Track
Indicates A Continued General Westward Motion With A Gradual
Increase In Forward Speed.

Although Not Explicitly Indicated Here...There Is A Possibility That
Gaston Could Regenerate Into A Tropical Cyclone During The Forecast
Period. This Is The Scenario That Is Being Suggested By Some Of The
Global Models.

Forecast Positions And Max Winds

Initial 02/2100z 13.5n 39.5w 25 Kt
12hr Vt 03/0600z 13.5n 40.4w 25 Kt...Post-Trop/Remnt Low
24hr Vt 03/1800z 13.7n 41.7w 25 Kt...Post-Trop/Remnt Low
36hr Vt 04/0600z 14.0n 43.0w 25 Kt...Post-Trop/Remnt Low
48hr Vt 04/1800z 14.2n 44.4w 25 Kt...Post-Trop/Remnt Low
72hr Vt 05/1800z 14.5n 48.0w 25 Kt...Post-Trop/Remnt Low
96hr Vt 06/1800z 15.0n 52.5w 25 Kt...Post-Trop/Remnt Low
120hr Vt 07/1800z 15.5n 57.5w 25 Kt...Post-Trop/Remnt Low

Forecaster Roberts/Pasch


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