000
AXNT20 KNHC 101118
TWDAT 

TROPICAL WEATHER DISCUSSION   
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
705 AM EST MON NOV 10 2008

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 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
1045 UTC.

...SPECIAL FEATURE...
NONE. 

...THE ITCZ...
THE AXIS IS ANALYZED ALONG 9N12W 4N29W 4N45W 2N53W. CLUSTERS OF 
SCATTERED MODERATE/ISOLATED STRONG CONVECTION ARE OFF THE COAST 
OF W AFRICA FROM 4N-8N BETWEEN 11W-16W AND FROM 8N-10N BETWEEN 
36W-42W. 

...DISCUSSION...

GULF OF MEXICO...
A DISSIPATING FRONTAL BOUNDARY ENTERS THE GULF ACROSS THE 
YUCATAN PENINSULA NEAR 21N90W TO 23N93W BECOMING A SURFACE 
TROUGH TO OFF THE COAST NEAR BROWNSVILLE TEXAS. THE UPPER TROUGH 
REMAINS WELL N OF THE REGION WITH WEST UPPER LEVEL WINDS 
DOMINATING THE ENTIRE GULF. ISOLATED SHOWERS ARE N OF THE 
SURFACE TROUGH W OF 94W TO INLAND OVER TEXAS. OTHERWISE THE 
REMAINDER OF THE GULF IS TRANQUIL THIS MORNING. A SURFACE RIDGE 
REMAINS OVER THE GULF NE OF THE FRONTAL BOUNDARY/SURFACE TROUGH 
ANCHORED BY A 1023 MB HIGH OVER W TENNESSEE. THE NEXT FRONT IS 
EXPECTED TO ENTER THE GULF WATERS NEAR MIDWEEK. 

CARIBBEAN SEA...
A DISSIPATING FRONTAL BOUNDARY EXTENDS FROM W CUBA NEAR 23N80W 
TO OVER THE YUCATAN PENINSULA NEAR 20N88W INTO THE GULF OF 
MEXICO. THE AREA N OF THE FRONT IS DRY WITH NO ASSOCIATED 
SHOWERS. THE REMNANTS OF PALOMA ARE OVER CUBA WITH SCATTERED/ 
BROKEN LOW CLOUDS WITH POSSIBLE ISOLATED SHOWERS COVERING THE NW 
CARIBBEAN N OF 19N BETWEEN 75W-83W. BROAD UPPER RIDGE DOMINATES 
THE CARIBBEAN ANCHORED NEAR 14N72W AND EXTENDS INTO THE W ATLC. 
THE ITCZ EXTENDS ACROSS THE SW CARIBBEAN FROM COLOMBIA TO THE 
BORDER OF PANAMA/COSTA RICA INTO THE E PACIFIC REGION GENERATING 
SCATTERED MODERATE/ISOLATED STRONG CONVECTION S OF 12N TO THE 
COAST OF PANAMA BETWEEN 80W-83W. LIGHT TO MODERATE TRADE WINDS 
ARE ACROSS THE E CARIBBEAN AND NORTHERLY WINDS OVER THE W 
CARIBBEAN USHERING IN SOME LOW LEVEL ISOLATED SHOWERS. 

ATLANTIC OCEAN...
A FRONTAL BOUNDARY ENTERS THE REGION NEAR 32N70W EXTENDING 
ACROSS THE N BAHAMA ISLANDS NEAR 25N77W TO OVER CUBA NEAR 23N80W 
WHERE IT DISSIPATES INT EH CARIBBEAN AND INTO THE GULF OF 
MEXICO. THE ASSOCIATED UPPER LEVEL TROUGH REMAINS WELL N OF THE 
REGION. THE UPPER RIDGE OVER THE CARIBBEAN EXTENDS OVER THE W 
ATLC ACROSS HISPANIOLA NE TO BEYOND 32N55W GENERATING SCATTERED 
SHOWERS/ISOLATED THUNDERSTORMS FROM 22N-30N BETWEEN 68W AND THE 
FRONT. AN UPPER LOW IS N OF 29N FROM 35W-45W WHILE AN UPPER 
LEVEL TROUGH EXTENDS ACROSS THE REMAINDER OF THE CENTRAL ATLC 
FROM NEAR 24N49W INTO THE TROPICS ALONG 16N53W TO THE COAST OF 
SOUTH AMERICA NEAR 6N56W. A SURFACE TROUGH EXTENDS FROM A 1013 
MB LOW NEAR 32N38W TO 28N46W WHILE A SECOND SURFACE TROUGH 
EXTENDS FROM 23N51W TO 17N56W. ISOLATED SCATTERED SHOWERS ARE 
FROM 31N-33N BETWEEN 34W-40W SURROUNDING THE 1013 MB LOW. BROAD 
UPPER RIDGE COVERS THE ENTIRE E ATLC ANCHORED NEAR 12N34W 
PROVIDING UPPER DIFFLUENCE TO GENERATE SCATTERED SHOWERS/ 
ISOLATED THUNDERSTORMS WITHIN 60 NM OF LINE FROM 10N56W TO 
16N49W AS WELL AS MID/HIGH CLOUDS WITH ISOLATED SHOWERS WITHIN 
150 NM OF LINE FROM 16N50W 27N36W N OF THE CANARY ISLANDS TO 
30N12W. A SURFACE RIDGE EXTENDS OVER THE W/CENTRAL ATLC N OF 25N 
BETWEEN THE FRONT AND SURFACE TROUGH WHILE A SURFACE RIDGE 
COVERS THE E ATLC N OF 18N E OF THE SURFACE TROUGH TO OVER W 
AFRICA. 

$$
WALLACE