Hurricane BERTHA

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BULLETIN
HURRICANE BERTHA ADVISORY NUMBER  36
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL   AL022008
1100 PM AST FRI JUL 11 2008

...SLOW FORWARD MOTION OF BERTHA NOT EXPECTED TO CHANGE SOON...
 
A TROPICAL STORM WATCH REMAINS IN EFFECT FOR BERMUDA.
 
AT 1100 PM AST...0300Z...THE CENTER OF HURRICANE BERTHA WAS LOCATED
NEAR LATITUDE 29.4 NORTH...LONGITUDE 62.4 WEST OR ABOUT 245 MILES...
395 KM...SOUTHEAST OF BERMUDA.
 
BERTHA IS MOVING SLOWLY TOWARD THE NORTH-NORTHWEST NEAR 5 MPH...7
KM/HR.  A GENERAL NORTHWARD MOTION WITH LITTLE CHANGE IN FORWARD
SPEED IS EXPECTED ON SATURDAY AND SUNDAY.  ON THIS TRACK...THE
CENTER OF BERTHA IS EXPECTED TO SLOWLY PASS TO THE SOUTHEAST AND
EAST OF BERMUDA DURING THE NEXT COUPLE OF DAYS...BUT THE MOTION
COULD OCCASIONALLY BE ERRATIC.

MAXIMUM SUSTAINED WINDS ARE NEAR 90 MPH...150 KM/HR...WITH HIGHER
GUSTS.  BERTHA IS A CATEGORY ONE HURRICANE ON THE SAFFIR-SIMPSON
SCALE.  NO SIGNIFICANT CHANGE IN STRENGTH IS FORECAST DURING THE
NEXT COUPLE OF DAYS.
 
HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 35 MILES...55 KM...FROM
THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 140
MILES...220 KM.  IT IS POSSIBLE THAT BERTHA COULD COME CLOSE ENOUGH
TO BERMUDA WITHIN THE NEXT COUPLE OF DAYS TO BRING WINDS OF
TROPICAL STORM FORCE TO THAT ISLAND AND ADJACENT WATERS.
 
ESTIMATED MINIMUM CENTRAL PRESSURE IS 976 MB...28.82 INCHES.

LARGE SWELLS AND HIGH SURF ARE AFFECTING BERMUDA...AND THESE
CONDITIONS ARE EXPECTED TO PERSIST FOR THE NEXT FEW DAYS.

THE OUTER BANDS OF BERTHA ARE EXPECTED TO PRODUCE RAINFALL AMOUNTS
IN BERMUDA OF 1 TO 2 INCHES DURING THE NEXT TWO DAYS.
 
REPEATING THE 1100 PM AST POSITION...29.4 N...62.4 W.  MOVEMENT
TOWARD...NORTH-NORTHWEST NEAR 5 MPH.  MAXIMUM SUSTAINED WINDS...90
MPH.  MINIMUM CENTRAL PRESSURE...976 MB.
 
AN INTERMEDIATE ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE
CENTER AT 200 AM AST FOLLOWED BY THE NEXT COMPLETE ADVISORY AT 500
AM AST.
 
$$
FORECASTER KNABB
 
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