HURRICANE DEAN ADVISORY NUMBER 33
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL042007
400 AM CDT TUE AUG 21 2007

...CATEGORY FIVE HURRICANE DEAN MAKES LANDFALL ON THE EAST COAST OF
THE YUCATAN PENINSULA OF MEXICO...

AT 400 AM CDT...0900 UTC...THE GOVERNMENT OF MEXICO HAS REPLACED THE
TROPICAL STORM WARNING AND HURRICANE WATCH WITH A HURRICANE WARNING
FROM WEST OF CHILITEPEC TO VERACRUZ MEXICO.

A HURRICANE WARNING IS IN EFFECT FOR THE ENTIRE COASTLINE OF BELIZE
AND ALONG THE EAST COAST OF THE YUCATAN PENINSULA OF MEXICO
FROM THE BELIZE/MEXICO BORDER NORTHWARD TO CANCUN. A HURRICANE
WARNING IS ALSO IN EFFECT ALONG THE WEST COAST OF THE YUCATAN
PENINSULA AND THE GULF COAST OF MEXICO FROM SOUTH OF PROGRESO
SOUTHWARD AND WESTWARD TO VERACRUZ. PREPARATIONS IN THE HURRICANE
WARNING AREA ALONG THE GULF COAST OF MEXICO SHOULD BE RUSHED TO
COMPLETION.

REPORTS FROM AN AIR FORCE HURRICANE HUNTER PLANE INDICATE THAT THE
EYE OF DEAN MADE LANDFALL ON THE EAST COAST OF THE YUCATAN
PENINSULA NEAR COSTA MAYA OR MAJAHUAL AROUND 330 AM CDT. THIS
LOCATION IS ABOUT 40 MILES...65 KM...EAST-NORTHEAST OF CHETUMAL
MEXICO

AT 400 AM CDT...0900Z...THE CENTER OF HURRICANE DEAN WAS LOCATED
JUST INLAND NEAR LATITUDE 18.7 NORTH...LONGITUDE 87.8 WEST OR ABOUT
35 MILES... 55 KM...EAST-NORTHEAST OF CHETUMAL MEXICO AND ABOUT 195
MILES...315 KM...EAST-SOUTHEAST OF CAMPECHE MEXICO.

DEAN IS MOVING TOWARD THE WEST-NORTHWEST NEAR 20 MPH...32 KM/HR...
AND A WEST-NORTHWESTWARD TO WESTWARD MOTION IS EXPECTED TODAY AND
TONIGHT. ON THE FORECAST TRACK THE CENTER WILL CROSS THE YUCATAN
PENINSULA TODAY AND LIKELY REACH THE SOUTHERN BAY OF CAMPECHE
TONIGHT.

MAXIMUM SUSTAINED WINDS ARE NEAR 165 MPH...270 KM/HR...WITH HIGHER
GUSTS. DEAN IS A CATEGORY FIVE HURRICANE ON THE SAFFIR-SIMPSON
SCALE. ALTHOUGH SOME WEAKENING IS FORECAST AS DEAN CROSSES THE
YUCATAN PENINSULA...DEAN IS EXPECTED TO MAINTAIN HURRICANE STRENGTH
THROUGHOUT THE NEXT 24 HOURS.

HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 60 MILES...95 KM...FROM
THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 175
MILES...280 KM.

THE HURRICANE HUNTER PLANE REPORTED A MINIMUM CENTRAL PRESSURE OF
906 MB...26.75 INCHES...JUST BEFORE LANDFALL.

STORM SURGE FLOODING OF 12 TO 18 FEET ABOVE NORMAL TIDE LEVELS ALONG
WITH LARGE AND DANGEROUS BATTERING WAVES IS POSSIBLE NEAR AND TO
THE NORTH OF WHERE DEAN MADE LANDFALL ALONG THE EAST COAST OF THE
YUCATAN PENINSULA.

DEAN IS EXPECTED TO PRODUCE STORM TOTAL RAINFALL OF 5 TO 10 INCHES
OVER THE ISTHMUS OF TEHUANTEPEC AND YUCATAN PENINSULA OF MEXICO...
BELIZE...GUATEMALA...AND NORTHERN HONDURAS...WITH MAXIMUM AMOUNTS
OF UP TO 20 INCHES. THESE RAINS COULD CAUSE LIFE-THREATENING FLASH
FLOODS AND MUD SLIDES.

REPEATING THE 400 AM CDT POSITION...18.7 N...87.8 W. MOVEMENT
TOWARD...WEST-NORTHWEST NEAR 20 MPH. MAXIMUM SUSTAINED WINDS...165
MPH. MINIMUM CENTRAL PRESSURE...906 MB.