000
AXPZ20 KNHC 042124
TWDEP 

TROPICAL WEATHER DISCUSSION   
NWS NATIONAL HURRICANE CENTER MIAMI FL
2205 UTC WED MAY 04 2011

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

BASED ON 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
2100 UTC.

...ITCZ...

THE INTERTROPICAL CONVERGENCE ZONE AXIS IS CENTERED ALONG 
05.5N80W TO 09N106W THEN CONTINUES FROM 09.5N114W TO 04N140W. 
SCATTERED MODERATE ISOLATED STRONG CONVECTION WAS NOTED WITHIN 
90 NM S OF AXIS BETWEEN 80W AND 87W. SCATTERED MODERATE ISOLATED 
STRONG CONVECTION WAS NOTED WITHIN 180 NM EITHER SIDE OF AXIS 
BETWEEN 98W AND 106W. SCATTERED MODERATE ISOLATED STRONG 
CONVECTION WAS NOTED WITHIN 90 NM EITHER SIDE OF AXIS BETWEEN 
114W AND 119W. 

...DISCUSSION...

A 1032 MB HIGH PRESSURE IS CENTERED NEAR 37N137W WITH RIDGE 
EXTENDING SE TO NEAR 21N117W. A SMALL AREA OF 20 KT WINDS 
PREVAILS N OF 20N W OF 130W. THESE WINDS WILL DIMINISH BELOW 20 
KT BY THURSDAY AFTERNOON. 

THERE IS A WEAK TROUGH FROM 05N115W TO 11N106W. THERE IS 
SCATTERED MODERATE TO ISOLATED STRONG CONVECTION WITHIN 180 NM 
EITHER SIDE OF AXIS. THIS TROUGH WILL SLOWLY DRIFT WESTWARD AND 
WEAKEN THROUGH THURSDAY.

GAP WINDS...
GULF OF TEHUANTEPEC...GALE FORCE CONDITIONS WILL CONTINUE 
THROUGH THURSDAY MORNING...THEN WILL DECREASE BELOW GALE FORCE 
BY THURSDAY AFTERNOON. CURRENTLY...IXTEPEC IN OAXACA MEXICO IS 
REPORTING SUSTAINED WINDS OF 25 KT WITH GUSTS OF 35 KT. NE 
SWELLS IN ASSOCIATION WITH THIS GALE EVENT WILL SPREAD S AND 
SW...RAISING SEAS TO A RANGE OF 8-11 FT FROM 04N TO 14N BETWEEN 
91W AND 108W IN 24 HOURS...AND S OF 12N BETWEEN 94W 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