Tropical Storm TOMAS

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TROPICAL STORM TOMAS ADVISORY NUMBER   4
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL     AL212010
500 AM AST SAT OCT 30 2010
 
...TOMAS NEAR HURRICANE STRENGTH AS IT PASSES NEAR BARBADOS AND
HEADS TOWARD THE NORTHERN WINDWARD ISLANDS...
 
 
SUMMARY OF 500 AM AST...0900 UTC...INFORMATION
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LOCATION...12.9N 59.5W
ABOUT 20 MI...35 KM S OF BARBADOS
ABOUT 120 MI...190 KM ESE OF ST. VINCENT
MAXIMUM SUSTAINED WINDS...70 MPH...110 KM/HR
PRESENT MOVEMENT...WNW OR 300 DEGREES AT 15 MPH...24 KM/HR
MINIMUM CENTRAL PRESSURE...994 MB...29.35 INCHES
 
 
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...
 
NONE.
 
SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
 
A HURRICANE WARNING IS IN EFFECT FOR...
* BARBADOS
* ST. VINCENT AND THE GRENADINES
* ST. LUCIA
* MARTINIQUE
 
A TROPICAL STORM WARNING IS IN EFFECT FOR...
* TRINIDAD AND TOBAGO
* GRENADA
* DOMINICA
 
A HURRICANE WARNING MEANS THAT HURRICANE CONDITIONS ARE EXPECTED
SOMEWHERE WITHIN THE WARNING AREA...IN THIS CASE WITHIN 12 HOURS.
PREPARATIONS TO PROTECT LIFE AND PROPERTY SHOULD BE COMPLETE.
 
A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE
EXPECTED SOMEWHERE WITHIN THE WARNING AREA...IN THIS CASE WITHIN
THE NEXT 12 HOURS.
 
FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR
PRODUCTS ISSUED BY YOUR NATIONAL METEOROLOGICAL SERVICE.
 
 
DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 500 AM AST...0900 UTC...THE CENTER OF TROPICAL STORM TOMAS WAS
LOCATED NEAR LATITUDE 12.9 NORTH...LONGITUDE 59.5 WEST. TOMAS IS
MOVING TOWARD THE WEST-NORTHWEST NEAR 15 MPH...24 KM/HR...AND THIS
MOTION IS EXPECTED TO CONTINUE WITH A GRADUAL DECREASE IN FORWARD
SPEED TONIGHT AND SUNDAY. ON THE FORECAST TRACK...THE CENTER OF
TOMAS WILL PASS THROUGH THE NORTHERN WINDWARD ISLANDS TODAY AND
ENTER THE EASTERN CARIBBEAN SEA BY TONIGHT.
 
MAXIMUM SUSTAINED WINDS HAVE INCREASED TO NEAR 70 MPH...110 KM/HR...
WITH HIGHER GUSTS. STRENGTHENING IS FORECAST DURING THE NEXT 48
HOURS...AND TOMAS IS EXPECTED TO BECOME A HURRICANE TODAY.
 
TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 140 MILES...220 KM
FROM THE CENTER.
 
BARBADOS RECENTLY REPORTED A 10-MINUTE WIND OF 36 MPH...57 KM/HR
...AND A PRESSURE OF 998 MB...29.47 INCHES.
 
ESTIMATED MINIMUM CENTRAL PRESSURE IS 994 MB...29.35 INCHES.
 
 
HAZARDS AFFECTING LAND
----------------------
WIND...TROPICAL STORM CONDITIONS ARE OCCURRING ON BARBADOS...AND
WILL SPREAD ACROSS THE REMAINDER OF THE WARNING AREA THIS MORNING.
HURRICANE CONDITIONS ARE EXPECTED WITHIN THE HURRICANE WARNING AREA
LATER THIS MORNING.
 
RAINFALL...TOMAS IS EXPECTED TO PRODUCE TOTAL RAIN ACCUMULATIONS
OF 3 TO 5 INCHES...WITH POSSIBLE ISOLATED MAXIMUM AMOUNTS OF 8
INCHES...ACROSS PORTIONS OF THE WINDWARD AND SOUTHERN LEEWARD
ISLANDS.
 
STORM SURGE...A DANGEROUS STORM SURGE WILL RAISE WATER LEVELS BY
AS MUCH AS 1 TO 3 FEET ABOVE NORMAL TIDE LEVELS WITHIN AREAS OF
ONSHORE FLOW. THE SURGE WILL BE ACCOMPANIED BY LARGE AND
POTENTIALLY DESTRUCTIVE WAVES.
 
 
NEXT ADVISORY
-------------
NEXT INTERMEDIATE ADVISORY...800 AM AST.
NEXT COMPLETE ADVISORY...1100 AM AST.
 
$$
FORECASTER BRENNAN
 
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