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WTNT35 KNHC 061455
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BULLETIN
TROPICAL STORM ERNESTO ADVISORY NUMBER  20
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL052012
1100 AM EDT MON AUG 06 2012

...ERNESTO STRENGTHENS...EXPECTED TO BECOME A HURRICANE BY
TONIGHT...


SUMMARY OF 1100 AM EDT...1500 UTC...INFORMATION
-----------------------------------------------
LOCATION...15.8N 80.5W
ABOUT 190 MI...305 KM ENE OF CABO GRACIAS A DIOS ON NIC/HON BORDER
ABOUT 405 MI...655 KM E OF ISLA ROATAN HONDURAS
MAXIMUM SUSTAINED WINDS...65 MPH...100 KM/H
PRESENT MOVEMENT...WNW OR 285 DEGREES AT 9 MPH...15 KM/H
MINIMUM CENTRAL PRESSURE...994 MB...29.35 INCHES


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

THE GOVERNMENT OF MEXICO HAS ISSUED A HURRICANE WARNING FOR THE EAST
COAST OF THE YUCATAN PENINSULA FROM CHETUMAL NORTHWARD TO PUNTA
ALLEN...AND HAS ISSUED A TROPICAL STORM WARNING FROM NORTH OF PUNTA
ALLEN TO TULUM.  THE GOVERNMENT OF MEXICO HAS ALSO ISSUED A
TROPICAL STORM WATCH FROM NORTH OF TULUM TO CHETUMAL.

THE GOVERNMENT OF BELIZE HAS ISSUED A HURRICANE WATCH FOR THE ENTIRE
COAST OF BELIZE.

THE GOVERNMENT OF THE CAYMAN ISLANDS HAS DISCONTINUED THE TROPICAL
STORM WATCH FOR GRAND CAYMAN.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A HURRICANE WARNING IS IN EFFECT FOR...
* CHETUMAL TO PUNTA ALLEN ON THE EAST COAST OF THE YUCATAN PENINSULA

A HURRICANE WATCH IS IN EFFECT FOR...
* THE ENTIRE COAST OF BELIZE

A TROPICAL STORM WARNING IS IN EFFECT FOR...
* THE COAST OF HONDURAS FROM THE HONDURAS/NICARAGUA BORDER WESTWARD
TO PUNTA SAL...INCLUDING THE BAY ISLANDS
* NORTH OF PUNTA ALLEN TO TULUM ON THE EAST COAST OF THE YUCATAN
PENINSULA

A TROPICAL STORM WATCH IS IN EFFECT FOR...
* THE COAST OF HONDURAS FROM WEST OF PUNTA SAL TO THE
HONDURAS/GUATEMALA BORDER
* NORTH OF TULUM TO CANCUN ON THE EAST COAST OF THE YUCATAN
PENINSULA

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.

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.

FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR
PRODUCTS ISSUED BY YOUR NATIONAL METEOROLOGICAL SERVICE.


DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
AT 1100 AM EDT...1500 UTC...THE CENTER OF TROPICAL STORM ERNESTO WAS
LOCATED NEAR LATITUDE 15.8 NORTH...LONGITUDE 80.5 WEST. ERNESTO IS
MOVING TOWARD THE WEST-NORTHWEST NEAR 9 MPH...15 KM/H...AND THIS
GENERAL MOTION IS EXPECTED TO CONTINUE FOR THE NEXT 48 HOURS AT A
SLIGHTLY FASTER FORWARD SPEED.  ON THE FORECAST TRACK...THE CENTER
WILL BE PASSING NORTH OF THE COAST OF HONDURAS TONIGHT AND
TUESDAY...AND APPROACH THE EAST COAST OF THE YUCATAN PENINSULA
EARLY WEDNESDAY.

MAXIMUM SUSTAINED WINDS ARE NEAR 65 MPH...100 KM/H...WITH HIGHER
GUSTS.  STRENGTHENING IS FORECAST...AND ERNESTO COULD BECOME A
HURRICANE BY TONIGHT.  ADDITIONAL STRENGTHENING IS POSSIBLE PRIOR
TO LANDFALL.

TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 125 MILES...205 KM
FROM THE CENTER.

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


HAZARDS AFFECTING LAND
----------------------
WIND...TROPICAL STORM CONDITIONS ARE EXPECTED IN THE TROPICAL STORM
WARNING AREA ALONG THE COAST OF HONDURAS TONIGHT THROUGH TUESDAY.
HURRICANE CONDITIONS ARE EXPECTED TO REACH THE COASTS OF BELIZE AND
MEXICO BY EARLY WEDNESDAY...WITH TROPICAL STORM CONDITIONS POSSIBLE
BY TUESDAY AFTERNOON.

RAINFALL...ERNESTO IS EXPECTED TO PRODUCE RAINFALL TOTALS OF 3 TO 5
INCHES ALONG THE NORTHERN COAST OF HONDURAS AND THE NORTHEAST COAST
OF NICARAGUA...WITH ISOLATED MAXIMUM AMOUNTS OF 8 INCHES OVER
MOUNTAINOUS TERRAIN.

STORM SURGE...A DANGEROUS STORM SURGE WILL RAISE WATER LEVELS BY
AS MUCH AS 2 TO 4 FEET ABOVE NORMAL TIDE LEVELS ALONG THE
IMMEDIATE COAST NEAR AND TO THE NORTH OF WHERE THE CENTER
MAKES LANDFALL.  NEAR THE COAST...THE SURGE WILL BE ACCOMPANIED BY
LARGE AND DANGEROUS WAVES.


NEXT ADVISORY
-------------
NEXT INTERMEDIATE ADVISORY...200 PM EDT.
NEXT COMPLETE ADVISORY...500 PM EDT.

$$
FORECASTER PASCH



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