Hurricane IRENE

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HURRICANE IRENE INTERMEDIATE ADVISORY NUMBER  22A
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL092011
800 PM EDT THU AUG 25 2011
 
...EYE OF IRENE GRADUALLY MOVING AWAY FROM ABACO ISLAND IN THE
BAHAMAS...
 
 
SUMMARY OF 800 PM EDT...0000 UTC...INFORMATION
----------------------------------------------
LOCATION...27.7N 77.4W
ABOUT 530 MI...855 KM SSW OF CAPE HATTERAS NORTH CAROLINA
MAXIMUM SUSTAINED WINDS...115 MPH...185 KM/H
PRESENT MOVEMENT...NNW OR 335 DEGREES AT 14 MPH...22 KM/H
MINIMUM CENTRAL PRESSURE...946 MB...27.93 INCHES
 
 
WATCHES AND WARNINGS
--------------------
CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...
 
NONE
 

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
 
A HURRICANE WARNING IS IN EFFECT FOR...
* THE NORTHWESTERN BAHAMAS
* THE COAST OF NORTH CAROLINA FROM LITTLE RIVER INLET NORTHWARD TO
THE VIRGINIA BORDER...INCLUDING THE PAMLICO...ALBEMARLE...AND
CURRITUCK SOUNDS
 
A HURRICANE WATCH IS IN EFFECT FOR...
* THE VIRGINIA/NORTH CAROLINA BORDER NORTHWARD TO SANDY HOOK NEW
JERSEY...INCLUDING DELAWARE BAY...AND CHESAPEAKE BAY SOUTH OF SMITH
POINT
 
A TROPICAL STORM WARNING IS IN EFFECT FOR...
* NORTH OF EDISTO BEACH SOUTH CAROLINA TO LITTLE RIVER INLET
 
A TROPICAL STORM WATCH IS IN EFFECT FOR...
* CHESAPEAKE BAY FROM SMITH POINT NORTHWARD AND THE TIDAL POTOMAC
 
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.
 
A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE
EXPECTED SOMEWHERE WITHIN THE WARNING AREA WITHIN 36 HOURS.
 
A HURRICANE WATCH MEANS THAT HURRICANE CONDITIONS ARE POSSIBLE
WITHIN THE WATCH AREA.  A WATCH IS TYPICALLY ISSUED 48 HOURS
BEFORE THE ANTICIPATED FIRST OCCURRENCE OF TROPICAL-STORM-FORCE
WINDS...CONDITIONS THAT MAKE OUTSIDE PREPARATIONS DIFFICULT OR
DANGEROUS.
 
A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE
POSSIBLE WITHIN THE WATCH AREA...GENERALLY WITHIN 48 HOURS.
 
INTERESTS ELSEWHERE IN THE MID-ATLANTIC STATES AND NEW ENGLAND
SHOULD MONITOR THE PROGRESS OF IRENE.
 
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 EDT...0000 UTC...THE EYE OF HURRICANE IRENE WAS LOCATED
NEAR LATITUDE 27.7 NORTH...LONGITUDE 77.4 WEST. IRENE IS MOVING
TOWARD THE NORTH-NORTHWEST NEAR 14 MPH...22 KM/H.  THIS MOTION IS
EXPECTED TO CONTINUE TONIGHT WITH A TURN TOWARD THE NORTH FRIDAY. 
ON THE FORECAST TRACK...IRENE WILL CONTINUE TO MOVE AWAY FROM THE
NORTHWESTERN BAHAMAS TONIGHT...AND THE CORE OF THE HURRICANE WILL
PASS WELL OFFSHORE OF THE EAST COAST OF CENTRAL AND NORTHERN
FLORIDA LATER TONIGHT AND EARLY FRIDAY.  THE HURRICANE IS FORECAST
TO APPROACH THE COAST OF NORTH CAROLINA ON SATURDAY.
 
MAXIMUM SUSTAINED WINDS REMAIN NEAR 115 MPH...185 KM/H...WITH HIGHER
GUSTS.  IRENE IS A CATEGORY THREE HURRICANE ON THE SAFFIR-SIMPSON
HURRICANE WIND SCALE.  SOME STRENGTHENING IS POSSIBLE TONIGHT AND
FRIDAY.
 
IRENE IS A LARGE TROPICAL CYCLONE.  HURRICANE FORCE WINDS EXTEND
OUTWARD UP TO 80 MILES...130 KM...FROM THE CENTER...AND TROPICAL
STORM FORCE WINDS EXTEND OUTWARD UP TO 290 MILES...465 KM.
 
THE LATEST MINIMUM CENTRAL PRESSURE ESTIMATED FROM AN AIR FORCE
RECONNAISSANCE AIRCRAFT WAS 946 MB...27.93 INCHES.
 
 
HAZARDS AFFECTING LAND
----------------------
WIND...HURRICANE AND TROPICAL STORM CONDITIONS ARE BEGINNING TO
SUBSIDE OVER THE NORTHWESTERN BAHAMAS. TROPICAL STORM FORCE WINDS
ARE EXPECTED WITHIN THE SOUTHERN PORTION OF THE WARNING AREA ALONG
THE UNITED STATES EAST COAST BY LATE FRIDAY.  HURRICANE FORCE WINDS
ARE EXPECTED TO FIRST REACH THE HURRICANE WARNING AREA BY SATURDAY.
 
STORM SURGE...WATER LEVELS WILL GRADUALLY SUBSIDE OVER THE
NORTHWESTERN AND CENTRAL BAHAMAS TONIGHT. ALONG THE EASTERN COAST
OF THE UNITED STATES...AN EXTREMELY DANGEROUS STORM SURGE WILL
RAISE WATER LEVELS BY AS MUCH AS 5 TO 10 FEET ABOVE GROUND LEVEL
WITHIN THE HURRICANE WARNING AREA INCLUDING THE ALBEMARLE AND
PAMLICO SOUNDS. NEAR THE COAST...THE SURGE WILL BE ACCOMPANIED BY
LARGE...DESTRUCTIVE...AND LIFE-THREATENING WAVES. IRENE ALSO HAS
THE POTENTIAL TO PRODUCE SIGNIFICANT STORM SURGE FLOODING WITHIN
THE HURRICANE WATCH AREA INCLUDING PORTIONS OF THE CHESAPEAKE
BAY...TRIBUTARIES...AND THE EASTERN SHORE.
 
RAINFALL...IRENE IS EXPECTED TO PRODUCE RAINFALL ACCUMULATIONS OF 6
TO 12 INCHES OVER THE NORTHERN BAHAMAS.  STORM TOTAL RAINFALL
AMOUNTS OF 6 TO 10 INCHES WITH ISOLATED MAXIMUM AMOUNTS OF 15
INCHES ARE EXPECTED OVER PORTIONS OF EASTERN NORTH CAROLINA AND IN
THE MID-ATLANTIC STATES ALONG THE PATH OF IRENE.
 
SURF...SWELLS GENERATED BY IRENE ARE AFFECTING PORTIONS OF THE COAST
OF THE SOUTHEASTERN UNITED STATES.  THESE SWELLS WILL CAUSE
LIFE-THREATENING SURF AND RIP CURRENT CONDITIONS.
 
 
NEXT ADVISORY
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NEXT COMPLETE ADVISORY...1100 PM EDT.
 
$$
FORECASTER AVILA
 
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