Post by Nws Olney Maryland on Sept 6, 2011 10:09:09 GMT -5
BULLETIN
HURRICANE KATIA ADVISORY NUMBER 31
NWS NATIONAL HURRICANE CENTER MIAMI FL AL122011
500 PM AST MON SEP 05 2011
...KATIA BECOMES A MAJOR HURRICANE...BIGGEST THREAT CONTINUES TO BE
DANGEROUS RIP CURRENTS ALONG THE U.S. EAST COAST AND BERMUDA...
SUMMARY OF 500 PM AST...2100 UTC...INFORMATION
----------------------------------------------
LOCATION...25.2N 63.9W
ABOUT 495 MI...795 KM S OF BERMUDA
MAXIMUM SUSTAINED WINDS...115 MPH...185 KM/H
PRESENT MOVEMENT...NW OR 310 DEGREES AT 12 MPH...19 KM/H
MINIMUM CENTRAL PRESSURE...959 MB...28.32 INCHES
WATCHES AND WARNINGS
--------------------
THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.
INTERESTS IN BERMUDA SHOULD MONITOR THE PROGRESS OF KATIA.
DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 500 PM AST...2100 UTC...THE CENTER OF HURRICANE KATIA WAS LOCATED
NEAR LATITUDE 25.2 NORTH...LONGITUDE 63.9 WEST. KATIA IS MOVING
TOWARD THE NORTHWEST NEAR 12 MPH...19 KM/H...AND THIS GENERAL MOTION
WITH A SLIGHT DECREASE IN FORWARD SPEED IS EXPECTED THROUGH
WEDNESDAY.
MAXIMUM SUSTAINED WINDS HAVE INCREASED TO NEAR 115 MPH...185 KM/H...
WITH HIGHER GUSTS. KATIA IS A CATEGORY THREE HURRICANE ON THE
SAFFIR-SIMPSON HURRICANE WIND SCALE. SOME ADDITIONAL STRENGTHENING
IS FORECAST THROUGH TUESDAY...FOLLOWED BY LITTLE CHANGE IN STRENGTH
ON WEDNESDAY.
HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 60 MILES...95 KM...FROM
THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 205
MILES...335 KM.
ESTIMATED MINIMUM CENTRAL PRESSURE IS 959 MB...28.32 INCHES.
HAZARDS AFFECTING LAND
----------------------
SURF...LARGE SWELLS GENERATED BY KATIA ARE EXPECTED TO AFFECT MOST
OF THE EAST COAST OF THE UNITED STATES...BERMUDA...THE GREATER
ANTILLES...AND EAST-FACING BEACHES OF THE BAHAMAS DURING THE NEXT
FEW DAYS. THESE SWELLS ARE LIKELY TO CAUSE LIFE-THREATENING SURF
AND RIP CURRENT CONDITIONS. SWELLS AFFECTING THE NORTHERN LEEWARD
ISLANDS SHOULD CONTINUE TO SUBSIDE TODAY. PLEASE CONSULT PRODUCTS
FROM YOUR LOCAL WEATHER SERVICE OFFICE FOR ADDITIONAL INFORMATION.
NEXT ADVISORY
-------------
NEXT COMPLETE ADVISORY...1100 PM AST.
HURRICANE KATIA ADVISORY NUMBER 31
NWS NATIONAL HURRICANE CENTER MIAMI FL AL122011
500 PM AST MON SEP 05 2011
...KATIA BECOMES A MAJOR HURRICANE...BIGGEST THREAT CONTINUES TO BE
DANGEROUS RIP CURRENTS ALONG THE U.S. EAST COAST AND BERMUDA...
SUMMARY OF 500 PM AST...2100 UTC...INFORMATION
----------------------------------------------
LOCATION...25.2N 63.9W
ABOUT 495 MI...795 KM S OF BERMUDA
MAXIMUM SUSTAINED WINDS...115 MPH...185 KM/H
PRESENT MOVEMENT...NW OR 310 DEGREES AT 12 MPH...19 KM/H
MINIMUM CENTRAL PRESSURE...959 MB...28.32 INCHES
WATCHES AND WARNINGS
--------------------
THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.
INTERESTS IN BERMUDA SHOULD MONITOR THE PROGRESS OF KATIA.
DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 500 PM AST...2100 UTC...THE CENTER OF HURRICANE KATIA WAS LOCATED
NEAR LATITUDE 25.2 NORTH...LONGITUDE 63.9 WEST. KATIA IS MOVING
TOWARD THE NORTHWEST NEAR 12 MPH...19 KM/H...AND THIS GENERAL MOTION
WITH A SLIGHT DECREASE IN FORWARD SPEED IS EXPECTED THROUGH
WEDNESDAY.
MAXIMUM SUSTAINED WINDS HAVE INCREASED TO NEAR 115 MPH...185 KM/H...
WITH HIGHER GUSTS. KATIA IS A CATEGORY THREE HURRICANE ON THE
SAFFIR-SIMPSON HURRICANE WIND SCALE. SOME ADDITIONAL STRENGTHENING
IS FORECAST THROUGH TUESDAY...FOLLOWED BY LITTLE CHANGE IN STRENGTH
ON WEDNESDAY.
HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 60 MILES...95 KM...FROM
THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 205
MILES...335 KM.
ESTIMATED MINIMUM CENTRAL PRESSURE IS 959 MB...28.32 INCHES.
HAZARDS AFFECTING LAND
----------------------
SURF...LARGE SWELLS GENERATED BY KATIA ARE EXPECTED TO AFFECT MOST
OF THE EAST COAST OF THE UNITED STATES...BERMUDA...THE GREATER
ANTILLES...AND EAST-FACING BEACHES OF THE BAHAMAS DURING THE NEXT
FEW DAYS. THESE SWELLS ARE LIKELY TO CAUSE LIFE-THREATENING SURF
AND RIP CURRENT CONDITIONS. SWELLS AFFECTING THE NORTHERN LEEWARD
ISLANDS SHOULD CONTINUE TO SUBSIDE TODAY. PLEASE CONSULT PRODUCTS
FROM YOUR LOCAL WEATHER SERVICE OFFICE FOR ADDITIONAL INFORMATION.
NEXT ADVISORY
-------------
NEXT COMPLETE ADVISORY...1100 PM AST.