000
AXNT20 KNHC 230610
TWDAT 

TROPICAL WEATHER DISCUSSION...     
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
205 AM EDT WED APR 23 2008

TROPICAL WEATHER DISCUSSION FOR NORTH AMERICA...CENTRAL 
AMERICA...THE GULF OF MEXICO...THE CARIBBEAN SEA...NORTHERN 
SECTIONS OF SOUTH AMERICA...AND THE 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 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH
0515 UTC.

...THE ITCZ...

ITCZ AXIS IS CENTERED ALONG 5N9W 2N20W 1N30W CROSSING THE 
EQUATOR NEAR 43W TO 2S50W.  SCATTERED MODERATE TO ISOLATED 
STRONG CONVECTION IS FROM 4N-6N BETWEEN 12W-15W...AND FROM EQ-2N 
BETWEEN 35W-40W.  A SECONDARY ITCZ AXIS IS SOUTH OF THE EQUATOR 
ALONG 2S1W 7S10W 7S25W 3S40W.  SCATTERED MODERATE TO STRONG 
CONVECTION IS FROM 1S-4S BETWEEN 1W-2W.  SCATTERED MODERATE TO 
ISOLATED STRONG CONVECTION IS FROM 2S-8S BETWEEN 26W-30W... AND 
FROM 2S-5S BETWEEN 31W-40W.       

...DISCUSSION...

GULF OF MEXICO...
A 1016 MB HIGH IS CENTERED OFF THE COAST OF LOUISIANA NEAR 
29N88W PRODUCING 10-15 KT ANTICYCLONIC SURFACE WINDS AND MOSTLY 
CLEAR SKIES OVER THE E GULF OF MEXICO E OF 91W.  SCATTERED 
MODERATE TO ISOLATED STRONG CONVECTION IS INLAND OVER LOUISIANA 
FROM 30N-33N BETWEEN 91W-94W.  ELSEWHERE...WIDELY SCATTERED 
MODERATE CONVECTION IS OVER NE MEXICO N OF TAMPICO BETWEEN 
98W-101W.  BROKEN TO OVERCAST MULTILAYERED CLOUDS ARE OVER THE W 
GULF OF MEXICO W OF 91W.  IN THE UPPER LEVELS...A TROUGH IS OVER 
THE NE GULF AND FLORIDA N OF 25N AND E OF 85W.  AN UPPER LEVEL 
RIDGE IS OVER THE REMAINDER OF THE GULF PRODUCING MOSTLY NWLY 
FLOW.  SIGNIFICANT UPPER LEVEL MOISTURE IS W OF 91W WITH STRONG 
SUBSIDENCE E OF 91W.  EXPECT...RETURN FLOW WITH SCATTERED 
SHOWERS AND ISOLATED THUNDERSTORMS OVER THE W GULF W OF 92W 
DURING THE NEXT 24 HOURS.       
  
CARIBBEAN SEA...
MODERATE TO FRESH TRADEWINDS ARE OVER THE CARIBBEAN SEA WITH 
MOSTLY FAIR WEATHER.  SCATTERED SHOWERS ARE HOWEVER OVER THE 
HIGHER ELEVATIONS OF HISPANIOLA AND N OF PUERTO RICO.  IN THE 
UPPER LEVELS ZONAL FLOW PREVAILS.  STRONG SUBSIDENCE COVERS THE 
ENTIRE AREA EXCEPT FOR THE SE CARIBBEAN S OF 15N AND E OF 70W 
WHERE UPPER LEVEL MOISTURE IS PRODUCING BROKEN HIGH CLOUDS.  
EXPECT LITTLE CHANGE OVER THE NEXT 24 HOURS.    

ATLANTIC OCEAN...
A DEEP LAYERED LOW IS OVER THE W ATLANTIC WITH A 1010 MB SURFACE 
LOW NEAR 31N76W AND AN UPPER LEVEL CENTER NEAR 30N76W.  A 
SURFACE TROUGH EXTENDS SW TO THE N BAHAMAS ALONG 27N77W 25N80W.  
SCATTERED MODERATE CONVECTION IS E OF THE SURFACE LOW FROM 
31N-32N BETWEEN 72W-74W.  ANOTHER 1011 MB LOW IS OVER THE W 
ATLANTIC NEAR 27N70W.  A SURFACE TROUGH EXTENDS S TO THE S 
BAHAMAS ALONG 24N69W 21N71W WITH NO PRECIPITATION.  ANOTHER DEEP 
LAYERED LOW IS OVER THE CENTRAL ATLANTIC WITH A 1010 MB LOW 
CENTERED NEAR 33N50W AND AN UPPER LEVEL CENTER NEAR 33N48W.  A 
SURFACE TROUGH EXTENDS SW FROM THE SURFACE LOW TO 25N56W WITH NO 
PRECIPITATION.  SCATTERED MODERATE CONVECTION IS N OF THE UPPER 
CENTER FROM 34N-35N BETWEEN 46W-48W.  A 1025 MB HIGH IS OVER THE 
E ATLANTIC NEAR 31N26W.     

$$
FORMOSA