Hurricane Igor

Public Advisory 48A



000
WTNT31 KNHC 200542
TCPAT1
BULLETIN
HURRICANE IGOR INTERMEDIATE ADVISORY NUMBER 48A
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL112010
200 AM AST MON SEP 20 2010

...TROPICAL STORM FORCE WINDS STILL OCCURRING ON BERMUDA AS IGOR
MOVES AWAY...


SUMMARY OF 200 AM AST...0600 UTC...INFORMATION
----------------------------------------------
LOCATION...33.4N 65.1W
ABOUT 80 MI...125 KM NNW OF BERMUDA
MAXIMUM SUSTAINED WINDS...75 MPH...120 KM/HR
PRESENT MOVEMENT...NNE OR 15 DEGREES AT 16 MPH...26 KM/HR
MINIMUM CENTRAL PRESSURE...955 MB...28.20 INCHES


WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...

NONE.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A HURRICANE WARNING IS IN EFFECT FOR...
* BERMUDA

FOR STORM INFORMATION SPECIFIC TO BERMUDA...PLEASE MONITOR PRODUCTS
ISSUED BY THE BERMUDA WEATHER SERVICE.


DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 200 AM AST...0600 UTC...THE CENTER OF HURRICANE IGOR WAS LOCATED
NEAR LATITUDE 33.4 NORTH...LONGITUDE 65.1 WEST. IGOR IS MOVING
TOWARD THE NORTH-NORTHEAST NEAR 16 MPH...26 KM/HR. A TURN TOWARD
THE NORTHEAST AND AN INCREASE IN FORWARD SPEED ARE EXPECTED IN THE
NEXT 12 TO 24 HOURS. ON THE FORECAST TRACK...THE CENTER OF IGOR
WILL CONTINUE MOVING AWAY FROM BERMUDA ON MONDAY.

MAXIMUM SUSTAINED WINDS ARE NEAR 75 MPH...120 KM/HR...WITH HIGHER
GUSTS. IGOR IS A CATEGORY ONE HURRICANE ON THE SAFFIR-SIMPSON
HURRICANE WIND SCALE. LITTLE CHANGE IN STRENGTH IS EXPECTED DURING
THE NEXT 48 HOURS. IGOR IS FORECAST TO BECOME AN EXTRATROPICAL
CYCLONE WITHIN THE NEXT COUPLE OF DAYS.

IGOR IS A VERY LARGE HURRICANE. HURRICANE FORCE WINDS EXTEND OUTWARD
UP TO 90 MILES...150 KM...FROM THE CENTER...AND TROPICAL STORM
FORCE WINDS EXTEND OUTWARD UP TO 345 MILES...555 KM. THE OFFICIAL
WEATHER OBSERVING SITE IN BERMUDA RECENTLY REPORTED A 10-MINUTE
WIND OF 43 MPH...69 KM/HR...AND A GUST TO 53 MPH...85 KM/HR.

ESTIMATED MINIMUM CENTRAL PRESSURE IS 955 MB...28.20 INCHES.


HAZARDS AFFECTING LAND
----------------------
WIND...WINDS WILL BEGIN TO DIMINISH OVER BERMUDA LATER MONDAY
MORNING.

RAINFALL...IGOR IS EXPECTED TO PRODUCE ADDITIONAL RAINFALL
ACCUMULATIONS OF UP TO AN INCH OVER BERMUDA THROUGH MIDDAY MONDAY.
THIS WILL BRING STORM TOTAL AMOUNTS TO BETWEEN 6 AND 9 INCHES OVER
BERMUDA.

STORM SURGE...A DANGEROUS STORM SURGE IS EXPECTED TO PRODUCE
SIGNIFICANT COASTAL FLOODING ON BERMUDA. THE SURGE WILL BE
ACCOMPANIED BY LARGE AND DESTRUCTIVE WAVES...ESPECIALLY ALONG THE
SOUTHERN COAST.

SURF...LARGE SWELLS WILL CONTINUE TO AFFECT THE EAST COAST OF THE
UNITED STATES THROUGH TUESDAY. LARGE SWELLS WILL GRADUALLY SUBSIDE
IN PUERTO RICO...THE VIRGIN ISLANDS...HISPANIOLA...AND PORTIONS OF
THE BAHAMAS DURING THE NEXT COUPLE OF DAYS. THESE SWELLS ARE
LIKELY TO CAUSE LIFE-THREATENING SURF AND RIP CURRENTS. PLEASE
CONSULT PRODUCTS FROM YOUR LOCAL WEATHER OFFICE FOR ADDITIONAL
INFORMATION.


NEXT ADVISORY
-------------
NEXT COMPLETE ADVISORY...500 AM AST.

$$
FORECASTER BRENNAN