000
AXNT20 KNHC 101733
TWDAT 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL  
105 PM EST WED FEB 10 2010

TROPICAL WEATHER DISCUSSION FOR NORTH AMERICA...CENTRAL 
AMERICA...GULF OF MEXICO...CARIBBEAN SEA...NORTHERN SECTIONS
OF SOUTH AMERICA...AND ATLANTIC OCEAN TO THE AFRICAN COAST
FROM THE EQUATOR TO 32N. THE FOLLOWING INFORMATION IS BASED
ON SATELLITE IMAGERY...METEOROLOGICAL ANALYSIS...WEATHER 
OBSERVATIONS...AND RADAR.

BASED ON 1200 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
1645 UTC.

...THE ITCZ...

THE ITCZ AXIS IS CENTERED ALONG 9N10W 5N20W 6N38W CROSSING THE 
EQUATOR NEAR 44W. CLUSTERS OF SCATTERED MODERATE CONVECTION ARE 
FROM 3N-6N BETWEEN 4W-12W INCLUDING THE SW COAST OF AFRICA. 

...DISCUSSION...
GULF OF MEXICO...
THE COLD FRONT HAS CLEARED THE GULF WATERS LEAVING IN ITS WAKE 
COOLER TEMPERATURES AND COLD AIR STRATOCUMULUS CLOUDS OVER MOST 
OF THE GULF WATERS W OF 85W. THE UPPER SUPPORT FOR THE FRONT 
REMAINS ANCHORED BY AN UPPER LOW OVER THE MID ATLANTIC STATES 
AND INTO THE W ATLC GIVING THE GULF ZONAL WESTERLY FLOW. AT THE 
SURFACE...HIGH PRESSURE CONTINUES TO BUILD ACROSS THE AREA 
ANCHORED BY A 1028 MB HIGH OVER NE OKLAHOMA WITH A STRONGER HIGH 
WELL N OF THE REGION. A DEEP UPPER TROUGH OVER THE DESERT SW/NW 
MEXICO IS GENERATING A STRONG UPPER JET ACROSS THE SE US AND 
FORCING UPPER LEVEL MOISTURE ACROSS MEXICO AND THE W GULF GIVING 
THE AREA BROKEN/OVERCAST MULTILAYERED CLOUDS WITH POSSIBLE 
ISOLATED SHOWERS W OF 94W. 

CARIBBEAN SEA...
COLD FRONT ENTERS THE NW CARIBBEAN FROM THE W ATLC ACROSS 
CENTRAL CUBA NEAR SANTA CLARA THEN W OF THE CAYMAN ISLANDS TO 
18N87W IN THE GULF OF HONDURAS TO INLAND OVER W HONDURAS NEAR 
THE GUATEMALA BORDER GENERATING BROKEN/OVERCAST LOW/MID CLOUDS 
WITH POSSIBLE ISOLATED SHOWERS WITHIN 45/60 NM EITHER SIDE OF 
THE FRONT. THE FRONTAL BOUNDARY S OF 20N IS BECOMING STATIONARY 
AT 10/1500 UTC. THE REMAINDER OF THE CARIBBEAN IS UNDER THE 
INFLUENCE OF DRY STABLE AIR GIVING THE REMAINDER OF THE AREA 
MOSTLY CLEAR SKIES BUT DUE TO THE TIGHTENING OF THE PRESSURE 
GRADIENT OVER THE S CARIBBEAN...STRONG EASTERLY TRADE WINDS ARE 
OVER THE AREA GENERALLY S OF 15N. 

ATLANTIC OCEAN.
COLD FRONT ENTERS THE W ATLC NEAR 32N72W EXTENDING SW OVER THE N 
BAHAMA ISLANDS ACROSS CUBA INTO THE NW CARIBBEAN NEAR SANTA 
CLARA. THE UPPER SUPPORT OF THIS FRONT REMAINS ANCHORED BY AN 
UPPER LOW OVER THE MID ATLANTIC STATES AND INTO THE W ATLC N OF 
27N BETWEEN 63W-77W AND GENERATING BROKEN/OVERCAST LOW/MID 
CLOUDS WITH POSSIBLE ISOLATED SHOWERS WITHIN 180 NM E OF THE 
FRONT N OF 24N. COLD AIR STRATOCUMULUS CLOUDS ARE W OF THE FRONT 
OVER THE REMAINDER OF THE W ATLC TO WITHIN 60/90 NM OF THE US 
COASTLINE. A SECOND COLD FRONT ENTERS THE CENTRAL ATLC NEAR 
32N36W EXTENDING ALONG 24N45W TO 21N55W BECOMING STATIONARY TO 
22N65W WITH THE UPPER SUPPORT N OF THE REGION AND GENERATING 
BROKEN/OVERCAST LOW/MID CLOUDS WITH POSSIBLE ISOLATED SHOWERS 
WITHIN 60/90 NM EITHER SIDE OF THE FRONT N OF 27N. WEAK SURFACE 
HIGH PRESSURE DOMINATES THE REMAINDER OF THE ATLC WITH A 1016 MB 
HIGH CENTERED IN THE W/CENTRAL ATLC NEAR 27N57W AND A 1019 MB 
HIGH JUST W OF THE CANARY ISLANDS NEAR 29N21W. 

FOR ADDITIONAL INFORMATION PLEASE VISIT 
HTTP://WWW.HURRICANES.GOV/MARINE.

$$
WALLACE