000
AXPZ20 KNHC 020925
TWDEP 

TROPICAL WEATHER DISCUSSION                                    
NWS NATIONAL HURRICANE CENTER MIAMI FL                           
1605 UTC THU MAY 02 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 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0900 UTC.

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... 
MONSOON TROUGH 9N82W TO 10N96W. ITCZ 10N96W TO 5N125W TO
5N140W. SCATTERED MODERATE ISOLATED STRONG WITHIN 80 NM N OF
AXIS FROM 114W-118W.
 
...DISCUSSION... 
AN UPPER LEVEL TROUGH OVER THE FAR NW PORTION OF THE DISCUSSION
AREA FROM 32N133W TO CYCLONIC CIRCULATION NEAR 28N137W TO
14N131W. EXCEPT FOR SOME HIGH LEVEL MOISTURE FROM 25N-31N W OF
120W MODERATE TO STRONG SUBSIDENCE WITH DRY AND STABLE AIR
AT THE MIDDLE AND UPPER LEVELS IS N OF 25N W OF 110W. AN UPPER
LEVEL RIDGE EXTENDS FROM A BROAD ANTICYCLONIC CIRCULATION CENTERED NEAR 12N100W TO 32N122W.

SURFACE RIDGE IS ACROSS THE AREA N OF 15N W OF 115W. NLY SWELLS
8 TO 10 FT ARE N OF 27N BETWEEN 120W-135W ARE FORECAST TO SUBSIDE
TO LESS THAN 8 FT FRI NIGHT. 

COLD FRONT WILL MOVE THROUGH THE GULF OF MEXICO FRI AFTERNOON
WITH STRONG HIGH PRES BUILDING BEHIND THE FRONT. THE HIGH WILL
WILL TIGHTEN THE PRES GRADIENT ACROSS SOUTHERN MEXICO RESULTING
IN GALE FORCE WINDS THROUGH THE GULF OF TEHUANTEPEC FRI AFTERNOON.

$$
DGS