000
AXPZ20 KNHC 052150
TWDEP 

TROPICAL WEATHER DISCUSSION                                      
NWS NATIONAL HURRICANE CENTER MIAMI FL                           
2205 UTC WED JUN 05 2013

TROPICAL WEATHER DISCUSSION FOR THE EASTERN PACIFIC OCEAN FROM 
THE EQUATOR TO 32N...EAST OF 140W. THE FOLLOWING INFORMATION IS 
BASED ON SATELLITE IMAGERY...WEATHER OBSERVATIONS...RADAR...AND 
METEOROLOGICAL ANALYSIS.

BASED ON 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
2000 UTC.

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...

MONSOON TROUGH FROM N COLOMBIA TO S NICARAGUA TO GUATEMALA WHERE 
IT LOSES IDENTITY. THE MONSOON TROUGH RESUMES AT 14N98W TO 
10N110W TO 08N121W. ITCZ CONTINUES FROM 08N121W TO 09N133W TO 
BEYOND 08N140W. SCATTERED MODERATE TO STRONG CONVECTION IS 03N 
TO 09N BETWEEN 76W AND 88W. SCATTERED MODERATE TO ISOLATED 
STRONG CONVECTION IS FROM 07N TO 15N BETWEEN 91W ANS 104W. 
WIDELY SCATTERED MODERATE CONVECTION IS FROM 09N TO 13N BETWEEN 
105W AND 111W...AND FROM 07N TO 10N BETWEEN 118W AND 123W.  

...DISCUSSION...                                                

A 1026 MB HIGH IS N OF THE AREA NEAR 37N141W. A 1012 MB LOW IS 
OFF THE COAST OF CALIFORNIA NEAR 31N127W. A SURFACE TROUGH 
EXTENDS SW FROM THE LOW TO 27N130W. SCATTERED SHOWERS ARE WITHIN 
120 NM OF THE LOW AND TROUGH. 

IN THE TROPICS...THE MONSOON TROUGH EXTENDS FROM N COLOMBIA TO 
NICARAGUA TO GUATEMALA. 10-15 KT SOUTHERLY WINDS EXTEND ALL THE 
WAY TO CENTRAL AMERICA E OF 100W. LONG PERIOD CROSS EQUATORIAL 
SWELL IS PROPAGATING NE INTO THE AREA. COMBINED SEAS HEIGHTS ARE 
PRESENTLY 8-11 FT. SEAS TO 8 FT WILL ARRIVE ALONG THE COAST OF 
CENTRAL AMERICA FROM COSTA RICA TO CENTRAL MEXICO TONIGHT...AND 
AS FAR N AS THE CENTRAL BAJA CALIFORNIA PENINSULA EARLY THU... 
THEN SUBSIDE TO LESS THAN 8 FT BY FRI AFTERNOON. THE SW SWELL 
MAY CAUSE HAZARDOUS BREAKING SURF CONDITIONS ALONG EXPOSED REEFS 
AND COASTS. 

IN THE UPPER LEVELS...AN UPPER LEVEL LOW IS CENTERED NEAR 
33N128W. AN UPPER LEVEL HIGH IS CENTERED NEAR 20N114W. BOTH 
SYSTEMS HAVE STRONG UPPER LEVEL SUBSIDENCE. TWO MORE SMALL UPPER 
LEVEL LOWS ARE OVER THE TROPICS AT 3N122W AND 2S90W.

$$
FORMOSA