Post by Nws Olney Maryland on Sept 6, 2011 10:05:39 GMT -5
BULLETIN
HURRICANE KATIA ADVISORY NUMBER 26
NWS NATIONAL HURRICANE CENTER MIAMI FL AL122011
1100 AM AST SUN SEP 04 2011
...KATIA RAPIDLY INTENSIFIES TO A CATEGORY 2 HURRICANE...
SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION
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LOCATION...21.9N 59.2W
ABOUT 360 MI...580 KM NE OF THE NORTHERN LEEWARD ISLANDS
MAXIMUM SUSTAINED WINDS...100 MPH...160 KM/H
PRESENT MOVEMENT...NW OR 305 DEGREES AT 12 MPH...19 KM/H
MINIMUM CENTRAL PRESSURE...966 MB...28.53 INCHES
WATCHES AND WARNINGS
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THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.
DISCUSSION AND 48-HOUR OUTLOOK
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AT 1100 AM AST...1500 UTC...THE CENTER OF HURRICANE KATIA WAS
LOCATED NEAR LATITUDE 21.9 NORTH...LONGITUDE 59.2 WEST. KATIA IS
MOVING TOWARD THE NORTHWEST NEAR 12 MPH...19 KM/H...AND THIS GENERAL
MOTION IS EXPECTED TO CONTINUE THROUGH TUESDAY. ON THE FORECAST
TRACK...KATIA WILL REMAIN NORTH OF THE NORTHERN LEEWARD ISLANDS.
MAXIMUM SUSTAINED WINDS HAVE INCREASED TO NEAR 100 MPH...160 KM/H...
WITH HIGHER GUSTS. KATIA IS A CATEGORY TWO HURRICANE ON THE
SAFFIR-SIMPSON HURRICANE WIND SCALE. ADDITIONAL STRENGTHENING IS
FORECAST DURING THE NEXT COUPLE OF DAYS...AND KATIA COULD BECOME A
MAJOR HURRICANE BY MONDAY.
HURRICANE-FORCE WINDS EXTEND OUTWARD UP TO 45 MILES...75 KM...FROM
THE CENTER...AND TROPICAL-STORM-FORCE WINDS EXTEND OUTWARD UP TO
175 MILES...280 KM. NOAA BUOY 41044 LOCATED JUST NORTH OF THE
CENTER OF KATIA RECENTLY REPORTED A SUSTAINED WIND OF 90 MPH...144
KM/H AND A GUST TO 107 MPH...173 KM/H.
THE ESTIMATED MINIMUM CENTRAL PRESSURE BASED ON RECENT PRESSURE
REPORTS FROM NOAA BUOY 41044 IS 966 MB...28.53 INCHES.
HAZARDS AFFECTING LAND
----------------------
SURF...SWELLS GENERATED BY KATIA ARE PRIMARILY AFFECTING THE
NORTHERN LESSER ANTILLES BUT SHOULD BEGIN TO SUBSIDE TONIGHT OR
MONDAY. SWELLS COULD BEGIN TO AFFECT BERMUDA BY EARLY NEXT WEEK.
THESE SWELLS ARE LIKELY TO CAUSE LIFE-THREATENING SURF AND RIP
CURRENT CONDITIONS. PLEASE CONSULT PRODUCTS FROM YOUR LOCAL WEATHER
OFFICE.
NEXT ADVISORY
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NEXT COMPLETE ADVISORY...500 PM AST.