Atlantic Hurricane IGOR Advisory Number 39
Fri, 17 Sep 2010 15:42:37 -0500
000
WTNT31 KNHC 172042
TCPAT1
BULLETIN
HURRICANE IGOR ADVISORY NUMBER 39
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL112010
500 PM AST FRI SEP 17 2010
...HURRICANE IGOR HEADING NORTHWESTWARD...
SUMMARY OF 500 PM AST...2100 UTC...INFORMATION
----------------------------------------------
LOCATION...23.7N 61.1W
ABOUT 635 MI...1025 KM SSE OF BERMUDA
MAXIMUM SUSTAINED WINDS...105 MPH...165 KM/HR
PRESENT MOVEMENT...NW OR 310 DEGREES AT 10 MPH...17 KM/HR
MINIMUM CENTRAL PRESSURE...947 MB...27.96 INCHES
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...
NONE.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
A HURRICANE WARNING IS IN EFFECT FOR...
* BERMUDA
A HURRICANE WARNING MEANS THAT HURRICANE CONDITIONS ARE EXPECTED
SOMEWHERE WITHIN THE WARNING AREA. A WARNING IS TYPICALLY ISSUED 36
HOURS BEFORE THE ANTICIPATED FIRST OCCURRENCE OF TROPICAL-STORM-
FORCE WINDS...CONDITIONS THAT MAKE OUTSIDE PREPARATIONS DIFFICULT
OR DANGEROUS. PREPARATIONS TO PROTECT LIFE AND PROPERTY SHOULD BE
RUSHED TO COMPLETION.
FOR STORM INFORMATION SPECIFIC TO YOUR AREA OUTSIDE THE UNITED
STATES...PLEASE MONITOR PRODUCTS ISSUED BY YOUR NATIONAL
METEOROLOGICAL SERVICE.
DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 500 PM AST...2100 UTC...THE CENTER OF HURRICANE IGOR WAS LOCATED
NEAR LATITUDE 23.7 NORTH...LONGITUDE 61.1 WEST. IGOR IS MOVING
TOWARD THE NORTHWEST NEAR 10 MPH...17 KM/HR. THIS GENERAL MOTION
WITH SOME INCREASE IN FORWARD SPEED IS EXPECTED TONIGHT AND
SATURDAY...FOLLOWED BY A TURN TOWARD THE NORTH-NORTHWEST LATE
FRIDAY OR EARLY SATURDAY. ON THE FORECAST TRACK...THE CENTER OF
THE HURRICANE WILL BE APPROACHING BERMUDA ON SUNDAY.
MAXIMUM SUSTAINED WINDS HAVE DECREASED TO NEAR 105 MPH...165
KM/HR...WITH HIGHER GUSTS. IGOR IS A CATEGORY TWO HURRICANE ON THE
SAFFIR-SIMPSON HURRICANE WIND SCALE. SLIGHT STRENGTHENING IS
POSSIBLE DURING THE NEXT DAY OR SO...FOLLOWED BY A GRADUAL
WEAKENING.
IGOR IS AN UNUSUALLY LARGE HURRICANE. HURRICANE FORCE WINDS EXTEND
OUTWARD UP TO 105 MILES...165 KM...FROM THE CENTER...AND TROPICAL
STORM FORCE WINDS EXTEND OUTWARD UP TO 345 MILES...555 KM.
ESTIMATED MINIMUM CENTRAL PRESSURE IS 947 MB...27.96 INCHES.
HAZARDS AFFECTING LAND
----------------------
WIND...TROPICAL STORM CONDITIONS ARE EXPECTED IN BERMUDA BY LATE
SATURDAY...WITH HURRICANE CONDITIONS EXPECTED ON SUNDAY.
RAINFALL...IGOR IS EXPECTED TO PRODUCE TOTAL RAINFALL ACCUMULATIONS
OF 5 TO 8 INCHES OVER BERMUDA.
SURF...LARGE SWELLS WILL CONTINUE TO AFFECT THE LEEWARD ISLANDS...
PUERTO RICO...THE VIRGIN ISLANDS...HISPANIOLA...AND PORTIONS OF THE
BAHAMAS DURING THE NEXT COUPLE OF DAYS. THESE SWELLS WILL ALSO
CAUSE DANGEROUS SURF CONDITIONS IN BERMUDA DURING THE NEXT SEVERAL
DAYS...WHICH WILL WORSEN AS IGOR APPROACHES. SWELLS WILL CONTINUE
TO AFFECT THE EAST COAST OF THE UNITED STATES THROUGH THE WEEKEND.
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 INTERMEDIATE ADVISORY...800 PM AST.
NEXT COMPLETE ADVISORY...1100 PM AST.
$$
FORECASTER KIMBERLAIN
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