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Tropical Storm Harvey Intermediate Advisory Number 2A
NWS National Hurricane Center Miami FL       AL092017
800 PM AST Thu Aug 17 2017

...HARVEY HEADED FOR THE WINDWARD ISLANDS...


SUMMARY OF 800 PM AST...0000 UTC...INFORMATION
----------------------------------------------
LOCATION...12.9N 56.5W
ABOUT 205 MI...325 KM E OF BARBADOS
ABOUT 310 MI...495 KM E OF ST. LUCIA
MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H
PRESENT MOVEMENT...W OR 270 DEGREES AT 18 MPH...30 KM/H
MINIMUM CENTRAL PRESSURE...1005 MB...29.68 INCHES


WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY:

None.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Tropical Storm Warning is in effect for...
* Martinique
* St. Lucia
* Barbados
* St. Vincent and the Grenadines

A Tropical Storm Watch is in effect for...
* Dominica

A Tropical Storm Warning means that tropical storm conditions are
expected somewhere within the warning area, in this case within
24 hours.

A Tropical Storm Watch means that tropical storm conditions are
possible within the watch area, in this case within 24 hours.

For storm information specific to your area, please monitor
products issued by your national meteorological service.


DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
At 800 PM AST (0000 UTC), the center of Tropical Storm Harvey was
located near latitude 12.9 North, longitude 56.5 West.  Harvey is
moving toward the west near 18 mph (30 km/h), and this motion is
expected to continue for the next couple of days.  On the forecast
track, Harvey should move through the Windward Islands and into the
eastern Caribbean Sea on Friday.

Reports from an Air Force Reserve Hurricane Hunter Aircraft
indicate that maximum sustained winds are near 40 mph (65 km/h) with
higher gusts.  Slow strengthening is possible during the next 48
hours.

Tropical-storm-force winds extend outward up to 35 miles (55 km) to
the north of the center.

The latest minimum central pressure reported by the Hurricane Hunter
aircraft is 1005 mb (29.68 inches).


HAZARDS AFFECTING LAND
----------------------
WIND:  Tropical storm conditions are expected to first reach the
Lesser Antilles within the warning area by early Friday, making
outside preparations difficult or dangerous.  Tropical storm
conditions are possible in the watch area on Friday.

RAINFALL:  Harvey is expected to produce rainfall totals of
2 to 4 inches across portions of the Windward Islands from
Martinique southward to Grenada.   These rains could cause
life-threatening flash floods and mudslides.


NEXT ADVISORY
-------------
Next complete advisory at 1100 PM AST.

$$
Forecaster Pasch

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