000
WTNT35 KNHC 251444
TCPAT5
BULLETIN
TROPICAL STORM MATTHEW ADVISORY NUMBER 9
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL152010
1100 AM EDT SAT SEP 25 2010

...MATTHEW FORECAST TO WEAKEN BUT EXPECTED TO PRODUCE TORRENTIAL RAINS OVER CENTRAL AMERICA...

SUMMARY OF 1100 AM EDT...1500 UTC...INFORMATION

LOCATION...16.2N 87.8W
ABOUT 45 MI...75 KM E OF MONKEY RIVER TOWN BELIZE
MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/HR
PRESENT MOVEMENT...WNW OR 285 DEGREES AT 15 MPH...24 KM/HR
MINIMUM CENTRAL PRESSURE...1000 MB...29.53 INCHES

WATCHES AND WARNINGS

CHANGES WITH THIS ADVISORY...

THE GOVERNMENT OF HONDURAS HAS DISCONTINUED THE TROPICAL STORM WARNING EAST OF PUNTA SAL ON THE NORTH COAST OF HONDURAS.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A TROPICAL STORM WARNING IS IN EFFECT FOR...
* THE COAST OF HONDURAS FROM PUNTA SAL WESTWARD...INCLUDING THE OFFSHORE ISLANDS
* THE COAST OF BELIZE FROM BELIZE CITY SOUTHWARD

A TROPICAL STORM WATCH IS IN EFFECT FOR...
* THE COAST OF BELIZE NORTH OF BELIZE CITY

A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA...IN THIS CASE WITHIN THE NEXT 12 HOURS.

A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA...IN THIS CASE WITHIN THE NEXT 12 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 MATTHEW WAS LOCATED NEAR LATITUDE 16.2 NORTH...LONGITUDE 87.8 WEST. MATTHEW IS MOVING TOWARD THE WEST-NORTHWEST NEAR 15 MPH...24 KM/HR...AND THIS MOTION WITH A DECREASE IN FORWARD SPEED IS EXPECTED DURING THE NEXT DAY OR TWO. THE FORECAST TRACK BRINGS THE BROAD CIRCULATION ASSOCIATED WITH MATTHEW ACROSS BELIZE AND GUATEMALA DURING THE NEXT 24 TO 48 HOURS.

MAXIMUM SUSTAINED WINDS HAVE DECREASED TO NEAR 40 MPH...65 KM/HR... WITH HIGHER GUSTS. MATTHEW IS FORECAST TO BECOME A TROPICAL DEPRESSION LATER TODAY AND DISSIPATE OVER CENTRAL AMERICA IN THE NEXT DAY OR TWO.

TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 140 MILES...220 KM TO THE NORTH OF THE CENTER.

ESTIMATED MINIMUM CENTRAL PRESSURE IS 1000 MB...29.53 INCHES.

HAZARDS AFFECTING LAND

WIND...TROPICAL STORM FORCE WINDS...MAINLY IN GUSTS...ARE OCCURRING  OVER THE COASTAL SECTIONS OF WESTERN HONDURAS AND WILL LIKELY SPREAD WESTWARD INTO THE WARNING AREA IN BELIZE LATER TODAY.

RAINFALL...MATTHEW IS EXPECTED TO PRODUCE TOTAL RAIN ACCUMULATIONS OF 6 TO 10 INCHES OVER PORTIONS OF HONDURAS...BELIZE...GUATEMALA...AND THE MEXICAN STATE OF CHIAPAS WITH ISOLATED MAXIMUM AMOUNTS OF 15 INCHES POSSIBLE. THESE RAINS COULD PRODUCE LIFE THREATENING FLASH FLOODS AND MUD SLIDES. A HEAVY RAIN THREAT SHOULD CONTINUE OVER CENTRAL AMERICA EVEN AFTER MATTHEW DISSIPATES.

NEXT ADVISORY

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

$$

FORECASTER AVILA