000
AXNT20 KNHC 241705
TWDAT 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL  
105 PM EST WED NOV 24 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 1715 UTC.

...THE ITCZ...

THE ITCZ AXIS IS CENTERED ALONG 9N13W 6N25W 7N32W 6N40W 7N58W.  
WIDELY SCATTERED MODERATE CONVECTION IS FROM EQ-10N BETWEEN 
20W-32W. ISOLATED MODERATE CONVECTION IS FROM 6N-9N BETWEEN 
42W-46W. A SURFACE TROUGH IS N OF THE ITCZ NEAR TRINIDAD FROM 
12N59W TO 6N62W. SCATTERED MODERATE CONVECTION IS FROM 6N-10N 
BETWEEN 57W-60W... AND FROM 10N-13N BETWEEN 54W-62W.  

...DISCUSSION...

THE GULF OF MEXICO...
SURFACE RIDGING IS PRODUCING 15-20 KT SE FLOW OVER THE GULF OF 
MEXICO. SCATTERED SHOWERS ARE OVER THE SE GULF OF MEXICO AND THE 
STRAITS OF FLORIDA S OF 26N E OF 90W. FAIR WEATHER PREVAILS OVER 
THE REMAINDER OF THE GULF. IN THE UPPER LEVELS...RIDGING IS ALSO 
OVER THE GULF WITH AXIS ALONG 90W. STRONG SUBSIDENCE COVERS THE 
ENTIRE GULF. EXPECT WITHIN THE NEXT 24 HOURS FOR SCATTERED 
SHOWERS OVER THE YUCATAN PENINSULA AND BAY OF CAMPECHE S OF 22N.

THE CARIBBEAN SEA...
A SURFACE TROUGH IS OVER THE SE CARIBBEAN FROM NEAR TRINIDAD 
PRODUCING CONVECTION. SEE THE ITCZ SECTION. 15-25 KT TRADE WINDS 
COVER THE ENTIRE CARIBBEAN SEA WITH THE STRONGEST WINDS S OF 
HISPANIOLA. SCATTERED SHOWERS ARE NOTED OVER THE SW CARIBBEAN 
AND PANAMA S OF 11N. MOSTLY FAIR WEATHER IS OVER THE REMAINDER 
OF THE AREA. IN THE UPPER LEVELS...A RIDGE IS OVER THE W 
CARIBBEAN W OF 80W PRODUCING NW UPPER LEVEL WINDS. ZONAL FLOW IS 
OVER THE E CARIBBEAN. SIGNIFICANT UPPER LEVEL MOISTURE IS OVER S 
AMERICA...SW CARIBBEAN...AND CENTRAL AMERICA S OF 
13N...PRODUCING BROKEN HIGH CLOUDS. EXPECT OVER THE NEXT 24 
HOURS FOR ADDITIONAL SHOWERS TO BE OVER THE SRN CARIBBEAN S OF 
15N.
 
THE ATLANTIC OCEAN...
A 1021 MB HIGH IS CENTERED OVER N FLORIDA NEAR 30N82W. A 1018 MB 
HIGH IS CENTERED OVER THE W ATLANTIC NEAR 28N61W. SCATTERED 
SHOWERS ARE OVER THE W ATLANTIC AND THE BAHAMAS W OF 67W. A 1006 
MB LOW IS OVER THE E ATLANTIC NEAR 33N27W. COLD FRONT EXTENDS S 
FROM THE LOW TO 29N27W 24N30W DISSIPATING TO 20N34W. SCATTERED 
SHOWERS ARE WITHIN 90 NM E OF THE FRONT. IN THE UPPER 
LEVELS...AN UPPER LEVEL RIDGE IS OVER THE W ATLANTIC N OF 20N W 
OF 60W. AN UPPER LEVEL TROUGH IS N OF 20N BETWEEN 30W-60W WITH 
AXIS ALONG 45W. THIS TROUGH IS SUPPORTING THE SURFACE LOW AND 
FRONT. EXPECT OVER THE NEXT 24 HOURS...FOR THE SURFACE FRONT TO 
MOVE NE WITH SHOWERS. 

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

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FORMOSA