TROPICAL STORM KATIA ADVISORY 15

[Nws Olney Maryland]

BULLETIN
TROPICAL STORM KATIA ADVISORY NUMBER 15
NWS NATIONAL HURRICANE CENTER MIAMI FL AL122011
500 PM AST THU SEP 01 2011

...KATIA WEAKENS TO TROPICAL STORM...EXPECTED TO RESTRENGTHEN...


SUMMARY OF 500 PM AST...2100 UTC...INFORMATION
----------------------------------------------
LOCATION...16.1N 49.2W
ABOUT 930 MI...1495 KM E OF THE NORTHERN LEEWARD ISLANDS
MAXIMUM SUSTAINED WINDS...70 MPH...110 KM/H
PRESENT MOVEMENT...W OR 280 DEGREES AT 18 MPH...30 KM/H
MINIMUM CENTRAL PRESSURE...990 MB...29.23 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 CENTER OF TROPICAL STORM KATIA WAS
LOCATED NEAR LATITUDE 16.1 NORTH...LONGITUDE 49.2 WEST. KATIA IS
MOVING TOWARD THE WEST NEAR 18 MPH...30 KM/H. A GENERAL MOTION
TOWARD THE WEST-NORTHWEST AND A DECREASE IN FORWARD SPEED ARE
EXPECTED DURING THE NEXT COUPLE OF DAYS.

MAXIMUM SUSTAINED WINDS HAVE DECREASED TO NEAR 70 MPH...110
KM/H...WITH HIGHER GUSTS. SOME RE-STRENGTHENING IS FORECAST DURING
THE NEXT 48 HOURS.

TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 140 MILES...220 KM
FROM THE CENTER.

ESTIMATED MINIMUM CENTRAL PRESSURE IS 990 MB...29.23 INCHES.


HAZARDS AFFECTING LAND
----------------------
SURF...SWELLS GENERATED BY KATIA WILL BEGIN AFFECTING THE LESSER
ANTILLES BY LATE FRIDAY. THESE SWELLS ARE LIKELY TO CAUSE
LIFE-THREATENING SURF AND RIP CURRENT CONDITIONS. PLEASE CONSULT
PRODUCTS FROM YOUR LOCAL WEATHER OFFICE.


NEXT ADVISORY
-------------
NEXT COMPLETE ADVISORY...1100 PM AST.