Post by NHC Olney Maryland on Sept 18, 2010 13:21:21 GMT -5
BULLETIN
HURRICANE IGOR INTERMEDIATE ADVISORY NUMBER 39A
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL/OLNEY MD AL112010
800 PM AST FRI SEP 17 2010
...LARGE HURRICANE IGOR MARCHING STEADILY NORTHWESTWARD...
SUMMARY OF 800 PM AST...0000 UTC...INFORMATION
----------------------------------------------
LOCATION...24.2N 61.3W
ABOUT 600 MI...965 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 IN THE UNITED
STATES...INCLUDING POSSIBLE INLAND WATCHES AND WARNINGS...PLEASE
MONITOR PRODUCTS ISSUED BY YOUR LOCAL NATIONAL WEATHER SERVICE
FORECAST OFFICE. 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 800 PM AST...0000 UTC...THE CENTER OF HURRICANE IGOR WAS LOCATED
NEAR LATITUDE 24.2 NORTH...LONGITUDE 61.3 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
SATURDAY OR EARLY SUNDAY. ON THE FORECAST TRACK...THE CENTER OF
THE HURRICANE WILL BE APPROACHING BERMUDA BY LATE SUNDAY. HOWEVER...
ADVERSE WEATHER CONDITIONS WILL BEGIN TO AFFECT BERMUDA AS EARLY AS
LATE SATURDAY NIGHT.
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 GRADUAL WEAKENING.
IGOR IS A PARTICULARLY 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. DURING
THE PAST HOUR...TROPICAL-STORM-FORCE WINDS NEAR 40 MPH WERE
REPORTED AT NOAA BUOY 41049 LOCATED 245 MI...395 KM...NORTHWEST OF
THE CENTER OF IGOR...AND ALSO AT NOAA BUOY 41044 LOCATED THE SAME
DISTANCE TO THE SOUTHEAST OF THE CENTER.
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.
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 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 COMPLETE ADVISORY...1100 PM AST.
HURRICANE IGOR INTERMEDIATE ADVISORY NUMBER 39A
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL/OLNEY MD AL112010
800 PM AST FRI SEP 17 2010
...LARGE HURRICANE IGOR MARCHING STEADILY NORTHWESTWARD...
SUMMARY OF 800 PM AST...0000 UTC...INFORMATION
----------------------------------------------
LOCATION...24.2N 61.3W
ABOUT 600 MI...965 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 IN THE UNITED
STATES...INCLUDING POSSIBLE INLAND WATCHES AND WARNINGS...PLEASE
MONITOR PRODUCTS ISSUED BY YOUR LOCAL NATIONAL WEATHER SERVICE
FORECAST OFFICE. 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 800 PM AST...0000 UTC...THE CENTER OF HURRICANE IGOR WAS LOCATED
NEAR LATITUDE 24.2 NORTH...LONGITUDE 61.3 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
SATURDAY OR EARLY SUNDAY. ON THE FORECAST TRACK...THE CENTER OF
THE HURRICANE WILL BE APPROACHING BERMUDA BY LATE SUNDAY. HOWEVER...
ADVERSE WEATHER CONDITIONS WILL BEGIN TO AFFECT BERMUDA AS EARLY AS
LATE SATURDAY NIGHT.
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 GRADUAL WEAKENING.
IGOR IS A PARTICULARLY 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. DURING
THE PAST HOUR...TROPICAL-STORM-FORCE WINDS NEAR 40 MPH WERE
REPORTED AT NOAA BUOY 41049 LOCATED 245 MI...395 KM...NORTHWEST OF
THE CENTER OF IGOR...AND ALSO AT NOAA BUOY 41044 LOCATED THE SAME
DISTANCE TO THE SOUTHEAST OF THE CENTER.
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.
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 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 COMPLETE ADVISORY...1100 PM AST.