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Latest Advisory on Tropical Storm Sean

By: National Hurricane Center
By: National Hurricane Center

BULLETIN
TROPICAL STORM SEAN ADVISORY NUMBER 15
NWS NATIONAL HURRICANE CENTER MIAMI FL AL192011
500 PM AST FRI NOV 11 2011

...SEAN EXPECTED TO BECOME POST-TROPICAL BY TONIGHT...

SUMMARY OF 500 PM AST...2100 UTC...INFORMATION
----------------------------------------------
LOCATION...35.5N 61.3W
ABOUT 300 MI...480 KM NE OF BERMUDA
MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H
PRESENT MOVEMENT...NE OR 55 DEGREES AT 30 MPH...48 KM/H
MINIMUM CENTRAL PRESSURE...991 MB...29.26 INCHES

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

THE BERMUDA WEATHER SERVICE HAS DISCONTINUED THE TROPICAL STORM
WARNING FOR BERMUDA.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.

DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 500 PM AST...2100 UTC...THE CENTER OF TROPICAL STORM SEAN WAS
LOCATED NEAR LATITUDE 35.5 NORTH...LONGITUDE 61.3 WEST. SEAN IS
MOVING TOWARD THE NORTHEAST NEAR 30 MPH...48 KM/H...AND THIS GENERAL
MOTION IS EXPECTED TO CONTINUE THROUGH TONIGHT.

MAXIMUM SUSTAINED WINDS REMAIN NEAR 50 MPH...85 KM/H...WITH HIGHER
GUSTS. LITTLE CHANGE IN STRENGTH IS FORECAST BEFORE SEAN IS
ABSORBED INTO A FRONTAL SYSTEM TONIGHT OR EARLY SATURDAY.

TROPICAL-STORM-FORCE WINDS EXTEND OUTWARD UP TO 175 MILES...280 KM
FROM THE CENTER.

ESTIMATED MINIMUM CENTRAL PRESSURE IS 991 MB...29.26 INCHES.

HAZARDS AFFECTING LAND
----------------------
SURF...SWELLS GENERATED BY SEAN ARE AFFECTING BERMUDA...CAUSING
LIFE-THREATENING SURF AND RIP CURRENTS. THESE SWELLS SHOULD
GRADUALLY DIMINISH DURING THE NEXT DAY OR SO.

NEXT ADVISORY
-------------
NEXT COMPLETE ADVISORY...1100 PM AST.

$$
FORECASTER CANGIALOSI

===============================

BULLETIN
TROPICAL STORM SEAN INTERMEDIATE ADVISORY NUMBER 11A
NWS NATIONAL HURRICANE CENTER MIAMI FL AL192011
800 PM AST THU NOV 10 2011

...SEAN EXPECTED TO PASS NORTHWEST OF BERMUDA EARLY FRIDAY...

SUMMARY OF 800 PM AST...0000 UTC...INFORMATION
----------------------------------------------
LOCATION...31.0N 69.0W
ABOUT 265 MI...425 KM WSW OF BERMUDA
MAXIMUM SUSTAINED WINDS...65 MPH...100 KM/H
PRESENT MOVEMENT...ENE OR 70 DEGREES AT 13 MPH...20 KM/H
MINIMUM CENTRAL PRESSURE...983 MB...29.03 INCHES

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

NONE.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A TROPICAL STORM WARNING IS IN EFFECT FOR...
* BERMUDA

INTERESTS IN BERMUDA SHOULD MONITOR PRODUCTS ISSUED BY THE BERMUDA
WEATHER SERVICE.

DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 800 PM AST...0000 UTC...THE CENTER OF TROPICAL STORM SEAN WAS
LOCATED NEAR LATITUDE 31.0 NORTH...LONGITUDE 69.0 WEST. SEAN HAS
BEEN TOWARD THE EAST-NORTHEAST NEAR 13 MPH...20 KM/H...OVER THE
PAST COUPLE OF HOURS. HOWEVER...A NORTHEASTWARD MOTION IS EXPECTED
TO RESUME TONIGHT AND CONTINUE FOR THE NEXT COUPLE OF DAYS WITH AN
INCREASE IN FORWARD SPEED. ON THE FORECAST TRACK...THE CENTER OF
THE SEAN SHOULD PASS TO THE NORTHWEST OF BERMUDA FRIDAY MORNING.

MAXIMUM SUSTAINED WINDS ARE NEAR 65 MPH...100 KM/H...WITH HIGHER
GUSTS. LITTLE CHANGE IN STRENGTH IS EXPECTED TONIGHT...AND SLOW
WEAKENING IS FORECAST ON FRIDAY.

TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 255 MILES...410 KM
FROM THE CENTER.

THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 983 MB...29.03 INCHES.

HAZARDS AFFECTING LAND
----------------------
WIND...TROPICAL STORM CONDITIONS ARE EXPECTED TO BEGIN ON BERMUDA
LATE THIS EVENING.

RAINFALL...SEAN IS EXPECTED TO PRODUCE 1 TO 3 INCHES OF RAIN ON
BERMUDA.

SURF...SWELLS GENERATED BY SEAN ARE AFFECTING PORTIONS OF THE
SOUTHEASTERN COAST OF THE UNITED STATES AND BERMUDA...CAUSING
LIFE-THREATENING SURF AND RIP CURRENTS. PLEASE SEE STATEMENTS FROM
YOUR LOCAL NATIONAL WEATHER SERVICE OFFICE FOR MORE DETAILS.

NEXT ADVISORY
-------------
NEXT COMPLETE ADVISORY...1100 PM AST.

$$
FORECASTER BRENNAN

==================================

BULLETIN
TROPICAL STORM SEAN ADVISORY NUMBER 7
NWS NATIONAL HURRICANE CENTER MIAMI FL AL192011
400 PM EST WED NOV 09 2011

...SEAN COULD BECOME A HURRICANE BY TOMORROW...

SUMMARY OF 400 PM EST...2100 UTC...INFORMATION
----------------------------------------------
LOCATION...28.7N 70.5W
ABOUT 420 MI...675 KM SW OF BERMUDA
MAXIMUM SUSTAINED WINDS...65 MPH...100 KM/H
PRESENT MOVEMENT...N OR 360 DEGREES AT 6 MPH...9 KM/H
MINIMUM CENTRAL PRESSURE...991 MB...29.26 INCHES

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

NONE.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A TROPICAL STORM WARNING IS IN EFFECT FOR...
* BERMUDA

A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE
EXPECTED SOMEWHERE WITHIN THE WARNING AREA WITHIN 36 HOURS.

INTERESTS IN BERMUDA SHOULD MONITOR PRODUCTS ISSUED BY THE BERMUDA
WEATHER SERVICE.

DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 400 PM EST...2100 UTC...THE CENTER OF TROPICAL STORM SEAN WAS
LOCATED NEAR LATITUDE 28.7 NORTH...LONGITUDE 70.5 WEST. SEAN IS
MOVING TOWARD THE NORTH NEAR 6 MPH...9 KM/H. A TURN TOWARD THE
NORTHEAST AND AN INCREASE IN FORWARD SPEED ARE EXPECTED ON
THURSDAY...FOLLOWED BY A FURTHER INCREASE IN FORWARD SPEED ON
FRIDAY. ON THE FORECAST TRACK...THE CENTER OF SEAN IS EXPECTED TO
PASS NORTHWEST OF BERMUDA ON FRIDAY MORNING.

MAXIMUM SUSTAINED WINDS HAVE INCREASED TO NEAR 65 MPH...100 KM/H...
WITH HIGHER GUSTS. FURTHER STRENGTHENING IS ANTICIPATED...AND SEAN
COULD BECOME A HURRICANE BY TOMORROW.

TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 290 MILES...465 KM
FROM THE CENTER.

ESTIMATED MINIMUM CENTRAL PRESSURE IS 991 MB...29.26 INCHES.

HAZARDS AFFECTING LAND
----------------------
WIND...TROPICAL STORM CONDITIONS ARE EXPECTED ON BERMUDA BY THURSDAY
NIGHT.

RAINFALL...SEAN IS EXPECTED TO PRODUCE 1 TO 3 INCHES OF RAIN ON
BERMUDA.

SURF...SWELLS GENERATED BY SEAN ARE AFFECTING PORTIONS OF THE
SOUTHEASTERN COAST OF THE UNITED STATES AND BERMUDA...CAUSING
LIFE-THREATENING SURF AND RIP CURRENTS. PLEASE SEE STATEMENTS FROM
YOUR LOCAL NATIONAL WEATHER SERVICE OFFICE FOR MORE DETAILS.

NEXT ADVISORY
-------------
NEXT INTERMEDIATE ADVISORY...700 PM EST.
NEXT COMPLETE ADVISORY...1000 PM EST.

$$
FORECASTER BLAKE

======================

SUMMARY OF 1000 AM EST...1500 UTC...INFORMATION
-----------------------------------------------
LOCATION...27.9N 70.5W
ABOUT 455 MI...735 KM SW OF BERMUDA
MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/H
PRESENT MOVEMENT...NW OR 320 DEGREES AT 3 MPH...6 KM/H
MINIMUM CENTRAL PRESSURE...994 MB...29.35 INCHES

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

NONE.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A TROPICAL STORM WARNING IS IN EFFECT FOR...
* BERMUDA

A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA WITHIN 36 HOURS.

INTERESTS IN BERMUDA SHOULD MONITOR PRODUCTS ISSUED BY THE BERMUDA WEATHER SERVICE.

DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 1000 AM EST...1500 UTC...THE CENTER OF TROPICAL STORM SEAN WAS LOCATED NEAR LATITUDE 27.9 NORTH...LONGITUDE 70.5 WEST. SEAN IS MOVING TOWARD THE NORTHWEST NEAR 3 MPH...6 KM/H. A GRADUAL TURN TOWARD THE NORTH IS EXPECTED TODAY...FOLLOWED BY A TURN TOWARD THE
NORTHEAST WITH AN INCREASE IN FORWARD SPEED ON THURSDAY. ON THE FORECAST TRACK...THE CENTER OF SEAN IS EXPECTED TO PASS NORTHWEST OF BERMUDA ON FRIDAY MORNING.

MAXIMUM SUSTAINED WINDS HAVE INCREASED TO NEAR 60 MPH...95 KM/H...WITH HIGHER GUSTS. SOME INCREASE IN STRENGTH IS POSSIBLE OVER THE NEXT DAY OR SO...WITH WEAKENING LIKELY ON FRIDAY.

TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 290 MILES...465 KM FROM THE CENTER.

ESTIMATED MINIMUM CENTRAL PRESSURE IS 994 MB...29.35 INCHES.

HAZARDS AFFECTING LAND
----------------------
WIND...TROPICAL STORM CONDITIONS ARE EXPECTED ON BERMUDA BY THURSDAY NIGHT.

RAINFALL...SEAN IS EXPECTED TO PRODUCE 1 TO 3 INCHES OF RAIN ON BERMUDA.

SURF...SWELLS GENERATED BY SEAN ARE EXPECTED TO AFFECT PORTIONS OF THE SOUTHEASTERN COAST OF THE UNITED STATES AND BERMUDA DURING THE NEXT COUPLE OF DAYS...CAUSING LIFE-THREATENING SURF AND RIP
CURRENTS. PLEASE SEE STATEMENTS FROM YOUR LOCAL NATIONAL WEATHER SERVICE OFFICE FOR MORE DETAILS.

NEXT ADVISORY
-------------
NEXT INTERMEDIATE ADVISORY...100 PM EST.
NEXT COMPLETE ADVISORY...400 PM EST.
=========================================================
BULLETIN
TROPICAL STORM SEAN INTERMEDIATE ADVISORY NUMBER 3A
NWS NATIONAL HURRICANE CENTER MIAMI FL AL192011
800 PM AST TUE NOV 08 2011

...SEAN STALLS...EXPECTED TO MOVE NORTHWESTWARD ON WEDNESDAY...

SUMMARY OF 800 PM AST...0000 UTC...INFORMATION
----------------------------------------------
LOCATION...27.8N 69.8W
ABOUT 430 MI...695 KM SW OF BERMUDA
MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H
PRESENT MOVEMENT...STATIONARY
MINIMUM CENTRAL PRESSURE...999 MB...29.50 INCHES

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

NONE.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A TROPICAL STORM WATCH IS IN EFFECT FOR...
* BERMUDA

A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE
POSSIBLE WITHIN THE WATCH AREA...GENERALLY WITHIN 48 HOURS.

INTERESTS IN BERMUDA SHOULD MONITOR PRODUCTS ISSUED BY THE BERMUDA
WEATHER SERVICE.

DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 800 PM AST...0000 UTC...THE CENTER OF TROPICAL STORM SEAN WAS
LOCATED NEAR LATITUDE 27.8 NORTH...LONGITUDE 69.8 WEST. SEAN HAS
MOVED LITTLE OVER THE PAST COUPLE OF HOURS...BUT A SLOW WESTWARD OR
WEST-NORTHWESTWARD MOTION IS EXPECTED OVERNIGHT. A TURN TOWARD THE
NORTHWEST IS EXPECTED ON WEDNESDAY...FOLLOWED BY A TURN TOWARD THE
NORTH AND THEN TOWARD THE NORTHEAST ON THURSDAY.

MAXIMUM SUSTAINED WINDS ARE NEAR 50 MPH...85 KM/H...WITH HIGHER
GUSTS. SOME STRENGTHENING IS POSSIBLE OVER THE NEXT COUPLE OF
DAYS.

TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 265 MILES...425
KM...MAINLY TO THE NORTH OF THE CENTER.

THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 999 MB...29.50 INCHES.

HAZARDS AFFECTING LAND
----------------------
WIND...TROPICAL STORM CONDITIONS ARE POSSIBLE ON BERMUDA LATE
THURSDAY OR EARLY FRIDAY.

SURF...SWELLS GENERATED BY SEAN ARE EXPECTED TO AFFECT PORTIONS OF
THE SOUTHEASTERN COAST OF THE UNITED STATES DURING THE NEXT COUPLE
OF DAYS...CAUSING LIFE-THREATENING SURF AND RIP CURRENTS. PLEASE
SEE STATEMENTS FROM YOUR LOCAL NATIONAL WEATHER SERVICE OFFICE FOR
MORE DETAILS.

NEXT ADVISORY
-------------
NEXT COMPLETE ADVISORY...1100 PM AST.

$$
FORECASTER BRENNAN


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