Post by NHC Olney Maryland on Sept 1, 2010 10:01:40 GMT -5
BULLETIN
TROPICAL STORM FIONA INTERMEDIATE ADVISORY NUMBER 7A
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL/ OLNEY MD AL082010
800 AM AST WED SEP 01 2010
...FIONA INTENSIFYING AS IT APPROACHES THE NORTHERN LEEWARD
ISLANDS...
SUMMARY OF 800 AM AST...1200 UTC...INFORMATION
----------------------------------------------
LOCATION...18.2N 60.9W
ABOUT 70 MI...110 KM NE OF BARBUDA
ABOUT 145 MI...235 KM E OF THE NORTHERN LEEWARD ISLANDS
MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/HR
PRESENT MOVEMENT...WNW OR 295 DEGREES AT 15 MPH...24 KM/HR
MINIMUM CENTRAL PRESSURE...998 MB...29.47 INCHES
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...
NONE.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
A TROPICAL STORM WARNING IS IN EFFECT FOR...
* ST. MARTIN AND ST. BARTHELEMY
A TROPICAL STORM WATCH IS IN EFFECT FOR...
* ANTIGUA...BARBUDA...MONTSERRAT...ST. KITTS...NEVIS...AND ANGUILLA
* ST. MAARTEN...SABA...AND ST. EUSTATIUS
INTERESTS ELSEWHERE IN THE NORTHERN LEEWARD ISLANDS SHOULD MONITOR
THE PROGRESS OF FIONA.
FOR STORM INFORMATION SPECIFIC TO YOUR AREA IN THE UNITED
STATES...INCLUDING POSSIBLE INLAND WATCHES AND WARNINGS...PLEASE
MONITOR PRODUCTS ISSUED BY YOUR LOCAL NATIONAL WEATHER SERVICE
FORECAST OFFICE. FOR STORM INFORMATION SPECIFIC TO YOUR AREA OUTSIDE
THE UNITED STATES...PLEASE MONITOR PRODUCTS ISSUED BY YOUR NATIONAL
METEOROLOGICAL SERVICE.
DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 800 AM AST...1200 UTC...THE CENTER OF TROPICAL STORM FIONA WAS
LOCATED BY RADAR AND RECONNAISSANCE AIRCRAFT TO BE NEAR LATITUDE
18.1 NORTH...LONGITUDE 60.9 WEST. FIONA IS MOVING TOWARD THE
WEST-NORTHWEST NEAR 15 MPH...24 KM/HR. A GRADUAL TURN TOWARD THE
NORTHWEST IS EXPECTED TO OCCUR LATER TODAY. ON THE FORECAST
TRACK...THE CENTER OF FIONA SHOULD PASS NEAR OR JUST NORTH OF THE
NORTHERNMOST LEEWARD ISLANDS LATER THIS MORNING AND AFTERNOON.
DATA FROM AN AIR FORCE RESERVE HURRICANE HUNTER INDICATE THAT
MAXIMUM SUSTAINED WINDS HAVE INCREASED TO NEAR 60 MPH...95
KM/HR...WITH HIGHER GUSTS. SOME SLIGHT STRENGTHENING IS POSSIBLE
DURING THE NEXT 24 HOURS...FOLLOWED BY LITTLE CHANGE IN INTENSITY
AFTER THAT.
TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 140 MILES...220
KM...MOSTLY TO THE NORTHEAST OF THE CENTER.
THE MINIMUM CENTRAL PRESSURE RECENTLY MEASURED BY RECONNAISSANCE
AIRCRAFT WAS 998 MB...29.47 INCHES.
HAZARDS AFFECTING LAND
----------------------
WIND...TROPICAL STORM CONDITIONS COULD SPREAD OVER PORTIONS OF THE
NORTHERN LEEWARD ISLANDS LATER THIS MORNING AND AFTERNOON.
RAINFALL...FIONA IS EXPECTED TO PRODUCE RAINFALL ACCUMULATIONS OF
1 TO 3 INCHES...WITH ISOLATED MAXIMUM AMOUNTS OF 5 INCHES...OVER
PORTIONS OF THE NORTHERN LEEWARD ISLANDS.
NEXT ADVISORY
-------------
NEXT COMPLETE ADVISORY...1100 AM AST.
TROPICAL STORM FIONA INTERMEDIATE ADVISORY NUMBER 7A
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL/ OLNEY MD AL082010
800 AM AST WED SEP 01 2010
...FIONA INTENSIFYING AS IT APPROACHES THE NORTHERN LEEWARD
ISLANDS...
SUMMARY OF 800 AM AST...1200 UTC...INFORMATION
----------------------------------------------
LOCATION...18.2N 60.9W
ABOUT 70 MI...110 KM NE OF BARBUDA
ABOUT 145 MI...235 KM E OF THE NORTHERN LEEWARD ISLANDS
MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/HR
PRESENT MOVEMENT...WNW OR 295 DEGREES AT 15 MPH...24 KM/HR
MINIMUM CENTRAL PRESSURE...998 MB...29.47 INCHES
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...
NONE.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
A TROPICAL STORM WARNING IS IN EFFECT FOR...
* ST. MARTIN AND ST. BARTHELEMY
A TROPICAL STORM WATCH IS IN EFFECT FOR...
* ANTIGUA...BARBUDA...MONTSERRAT...ST. KITTS...NEVIS...AND ANGUILLA
* ST. MAARTEN...SABA...AND ST. EUSTATIUS
INTERESTS ELSEWHERE IN THE NORTHERN LEEWARD ISLANDS SHOULD MONITOR
THE PROGRESS OF FIONA.
FOR STORM INFORMATION SPECIFIC TO YOUR AREA IN THE UNITED
STATES...INCLUDING POSSIBLE INLAND WATCHES AND WARNINGS...PLEASE
MONITOR PRODUCTS ISSUED BY YOUR LOCAL NATIONAL WEATHER SERVICE
FORECAST OFFICE. FOR STORM INFORMATION SPECIFIC TO YOUR AREA OUTSIDE
THE UNITED STATES...PLEASE MONITOR PRODUCTS ISSUED BY YOUR NATIONAL
METEOROLOGICAL SERVICE.
DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 800 AM AST...1200 UTC...THE CENTER OF TROPICAL STORM FIONA WAS
LOCATED BY RADAR AND RECONNAISSANCE AIRCRAFT TO BE NEAR LATITUDE
18.1 NORTH...LONGITUDE 60.9 WEST. FIONA IS MOVING TOWARD THE
WEST-NORTHWEST NEAR 15 MPH...24 KM/HR. A GRADUAL TURN TOWARD THE
NORTHWEST IS EXPECTED TO OCCUR LATER TODAY. ON THE FORECAST
TRACK...THE CENTER OF FIONA SHOULD PASS NEAR OR JUST NORTH OF THE
NORTHERNMOST LEEWARD ISLANDS LATER THIS MORNING AND AFTERNOON.
DATA FROM AN AIR FORCE RESERVE HURRICANE HUNTER INDICATE THAT
MAXIMUM SUSTAINED WINDS HAVE INCREASED TO NEAR 60 MPH...95
KM/HR...WITH HIGHER GUSTS. SOME SLIGHT STRENGTHENING IS POSSIBLE
DURING THE NEXT 24 HOURS...FOLLOWED BY LITTLE CHANGE IN INTENSITY
AFTER THAT.
TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 140 MILES...220
KM...MOSTLY TO THE NORTHEAST OF THE CENTER.
THE MINIMUM CENTRAL PRESSURE RECENTLY MEASURED BY RECONNAISSANCE
AIRCRAFT WAS 998 MB...29.47 INCHES.
HAZARDS AFFECTING LAND
----------------------
WIND...TROPICAL STORM CONDITIONS COULD SPREAD OVER PORTIONS OF THE
NORTHERN LEEWARD ISLANDS LATER THIS MORNING AND AFTERNOON.
RAINFALL...FIONA IS EXPECTED TO PRODUCE RAINFALL ACCUMULATIONS OF
1 TO 3 INCHES...WITH ISOLATED MAXIMUM AMOUNTS OF 5 INCHES...OVER
PORTIONS OF THE NORTHERN LEEWARD ISLANDS.
NEXT ADVISORY
-------------
NEXT COMPLETE ADVISORY...1100 AM AST.