[Tropical] Tropical Weather Discussion

[EMWIN Server]

AXNT20 KNHC 262316
TWDAT

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
705 PM EST FRI NOV 26 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 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH
2315 UTC.

...THE ITCZ...

THE ITCZ AXIS IS CENTERED ALONG 11N15W 7N30W 8N40W 10N50W
10N62W.  WIDELY SCATTERED MODERATE CONVECTION IS FROM 2N-8N
BETWEEN 21W-26W...AND FROM 2N-6N BETWEEN 30W-40W. ISOLATED
MODERATE CONVECTION IS FROM 6N-14N BETWEEN 35W-40W. SCATTERED
MODERATE TO ISOLATED STRONG CONVECTION IS E OF THE WINDWARD
ISLANDS FROM 8N-13N BETWEEN 47W-60W.

...DISCUSSION...

GULF OF MEXICO...
AS OF 2100 UTC...A COLD FRONT EXTENDS FROM THE FLORIDA PANHANDLE
TO THE BAY OF CAMPECHE ALONG 31N85W 25N93W 19N96W MOVING SE.
SCATTERED SHOWERS ARE WITHIN 90 NM W OF THE FRONT. OVERCAST LOW
CLOUDS ARE W OF THE FRONT TO THE COASTS OF TEXAS AND MEXICO.
GALE FORCE WINDS ARE ALSO W OF FRONT N OF 25N. TEMPERATURES HAVE
DROPPED TO THE 40'S AND 50'S ALONG THE COASTS OF LOUISIANA AND
TEXAS. 10 KT SOUTHERLY WINDS AND MOSTLY FAIR WEATHER PREVAILS E
OF THE FRONT WITH TEMPERATURES IN THE 70'S. ISOLATED SHOWERS ARE
HOWEVER OVER THE FLORIDA KEYS AND THE STRAITS OF FLORIDA. IN THE
UPPER LEVELS...RIDGING IS PRODUCING SW UPPER LEVEL FLOW WITH
SUBSIDENCE. EXPECT THE COLD FRONT TO EXTEND FROM CENTRAL FLORIDA
TO THE EASTERN BAY OF CAMPECHE IN 24 HOURS WITH SHOWERS.

CARIBBEAN SEA...
A SURFACE TROUGH IS OVER THE SW CARIBBEAN EXTENDING FROM
NICARAGUA TO COLOMBIA ALONG 12N83W 8N75W. WIDELY SCATTERED
MODERATE CONVECTION IS FROM 8N-13N BETWEEN 74W-84W. FURTHER E...
SCATTERED MODERATE CONVECTION IS OVER THE SE CARIBBEAN AND
VENEZUELA FROM 7N-13N BETWEEN 60W-66W. IN ADDITION...SCATTERED
SHOWERS ARE OVER THE CENTRAL CARIBBEAN S OF 13N BETWEEN 66W-74W.
MOSTLY FAIR WEATHER IS OVER THE N CARIBBEAN N OF 15N. 15-25 KT
TRADE WINDS COVER THE ENTIRE CARIBBEAN SEA WITH THE STRONGEST
WINDS S OF HISPANIOLA TO COLOMBIA. IN THE UPPER LEVELS...A RIDGE
IS OVER THE W CARIBBEAN W OF 80W PRODUCING SW UPPER LEVEL WINDS.
ZONAL FLOW IS OVER THE REMAINDER OF THE CARIBBEAN. SIGNIFICANT
UPPER LEVEL MOISTURE IS OVER S AMERICA...SW CARIBBEAN...AND
CENTRAL AMERICA S OF 15N...PRODUCING BROKEN HIGH CLOUDS. EXPECT
OVER THE NEXT 24 HOURS FOR ADDITIONAL SHOWERS TO BE OVER THE SRN
CARIBBEAN S OF 15N...AND OVER THE NW CARIBBEAN W OF 75W.

ATLANTIC OCEAN...
A 1020 MB HIGH IS CENTERED OVER THE W ATLANTIC NEAR 29N66W.
SCATTERED SHOWERS ARE OVER THE W ATLANTIC AND THE BAHAMAS W OF
70W. A COLD FRONT ENTERS THE CENTRAL ATLANTIC NEAR 32N36W AND
EXTENDS SW ALONG 27N40W 22N50W 21N60W. A STATIONARY FRONT
CONTINUES W TO 23N70W. SCATTERED MODERATE CONVECTION IS OVER THE
CENTRAL ATLANTIC WITHIN 180 NM E OF FRONT N OF 25N. SCATTERED
SHOWERS ARE WITHIN 30 NM OF THE REMAINDER OF THE FRONT. A
SURFACE TROUGH IS ALSO OVER THE CENTRAL ATLANTIC ALONG 24N41W
19N50W 17N59W. SCATTERED SHOWERS ARE WITHIN 30 NM OF THE TROUGH.
A WEAK 1012 MB HIGH IS OVER THE E ATLANTIC NEAR 22N27W PRODUCING
FAIR WEATHER. IN THE UPPER LEVELS...AN UPPER LEVEL RIDGE IS OVER
THE W ATLANTIC N OF 20N W OF 60W. ZONAL FLOW IS N OF 20N E OF
60W. AN UPPER LEVEL HIGH IS CENTERED E OFF THE COAST OF W AFRICA
NEAR 10N20W. EXPECT OVER THE NEXT 24 HOURS...FOR THE CENTRAL
ATLANTIC COLD FRONT TO MOVE E WHILE ANOTHER COLD FRONT ENTERS
THE W ATLANTIC WITH SHOWERS.

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

$$
FORMOSA






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