000
AXPZ20 KNHC 050352
TWDEP 

TROPICAL WEATHER DISCUSSION   
NWS NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC THU MAY 05 2011

TROPICAL WEATHER DISCUSSION FOR THE EASTERN PACIFIC OCEAN FROM 
THE EQUATOR TO 32N...EAST OF 140W.

BASED ON 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0245 UTC.

...ITCZ...

THE INTERTROPICAL CONVERGENCE ZONE AXIS IS CENTERED ALONG 05N77W 
TO 08N106W THEN CONTINUES FROM 08N110W TO 04.5N118W TO 06N126W 
TO 04N140W. SCATTERED MODERATE TO STRONG CONVECTION WAS NOTED 
WITHIN 60 NM EITHER SIDE OF AXIS BETWEEN 95W AND 110W. SCATTERED 
MODERATE ISOLATED STRONG CONVECTION WAS NOTED WITHIN 180 NM 
EITHER SIDE OF AXIS BETWEEN 100W AND 107W. 

...DISCUSSION...

A 1032 MB HIGH PRESSURE IS CENTERED NEAR 37N137W WITH RIDGE 
EXTENDING SE TO NEAR 23N119W. A SMALL AREA OF 20 KT TRADES 
PREVAILS OVER THE FAR W PART OF THE AREA N OF THE ITCZ AND W OF 
135W. THE COVERAGE OF 20 KT TRADES WILL DIMINISH THROUGH THE 
FORECAST PERIOD...AND WILL BE CONFINED TO AN AREA FROM 08N TO 
10N W OF 130W WITHIN 48 HOURS.

THERE IS A WEAK TROUGH FROM 03N108W TO 12N106W. THERE IS 
SCATTERED MODERATE TO ISOLATED STRONG CONVECTION WITHIN 90 NM 
EITHER SIDE OF AXIS N OF 08N. 

GAP WINDS...
GULF OF TEHUANTEPEC...GALE FORCE CONDITIONS WILL CONTINUE 
THROUGH THURSDAY MORNING...THEN WILL DECREASE BELOW GALE FORCE 
BY THURSDAY AFTERNOON. NE SWELLS RESULTING FROM WITH THIS GALE 
EVENT WILL SPREAD S AND SW...RAISING SEAS TO A RANGE OF 8-10 FT 
FROM 07N TO 15N BETWEEN 91W AND 109W IN 24 HOURS...AND SEAS TO 8 
FT S OF 10N BETWEEN 100W AND 110W IN 48 HOURS.

GULF OF PAPAGAYO...NE TO E WINDS OF 20 TO 25 KT WILL CONTINUE 
THROUGH THE FORECAST PERIOD. THESE WINDS WILL PEAK IN THE EARLY 
MORNING HOURS WITH THE AID OF NOCTURNAL DRAINAGE. 

$$
AL