Dean Update

1100 AM EDT SAT AUG 18 2007

AN AIR FORCE PLANE ENTERED THE EYE OF DEAN THIS MORNING AND FOUND
THAT THE HURRICANE HAS NOT WEAKENED AND THE INITIAL INTENSITY
REMAINS AT 130 KNOTS. IN FACT...THE MINIMUM PRESSURE DROPPED TO 924
MB AT AROUND 1200 UTC AND THEN UP TO 929 MB JUST RECENTLY. DEAN
WILL LIKELY GO THROUGH EYEWALL CYCLES DURING THE NEXT FEW DAYS
RESULTING IN FLUCTUATIONS IN INTENSITY. HOWEVER...THE PEAK
INTENSITY IS EXPECTED TO OCCUR IN THE NORTHWESTERN CARIBBEAN
BETWEEN THE CAYMAN ISLANDS AND YUCATAN WHERE THE OCEAN HEAT CONTENT
IS VERY HIGH. DEAN COULD BECOME A CATEGORY FIVE AT ANY TIME BEFORE
IT REACHES YUCATAN.

THE STEERING PATTERN HAS BEEN VERY STEADY. DEAN IS MOVING TOWARD THE
WEST OR 290 DEGREES AT 15 KNOTS STEERED BY A HIGH OVER THE WESTERN
ATLANTIC AND A LOW OVER FLORIDA. THE LOW IS FORECAST TO MOVE
WESTWARD AND BE REPLACED BY A STRONG RIDGE BY ALL GLOBAL MODELS.
THIS PATTERN WILL KEEP DEAN ON A GENERAL WEST-NORTHWEST TO WEST
TRACK ACROSS THE CARIBBEAN SEA IN THE DIRECTION OF JAMAICA...THE
CAYMAN ISLANDS AND YUCATAN. THIS IS CONSISTENT WITH TRACK MODELS
WITH THE EXCEPTION OF THE GFDL WHICH INSISTS ON A TRACK FARTHER TO
THE NORTH AND JUST CLIPPING THE NORTHEASTERN YUCATAN PENINSULA.