000
AXPZ20 KNHC 250903
TWDEP 

TROPICAL WEATHER DISCUSSION                                    
NWS NATIONAL HURRICANE CENTER MIAMI FL 
1005 UTC TUE MAR 25 2014

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...

THE ITCZ EXTENDS FROM 06N98W TO 03.5N108W TO BEYOND 04N140W. 
SCATTERED MODERATE ISOLATED STRONG CONVECTION WAS NOTED WITHIN 
90 NM OF THE ITCZ BETWEEN 98W AND 108W.
  
...DISCUSSION...  

HIGH PRESSURE OF 1024 MB IS CENTERED NEAR 26N132W WITH RIDGE 
EXTENDING ESE TO NEAR 19N110W. A WEAKENING COLD FRONT IS MOVING 
THROUGH THE NW WATERS EXTENDING OVER THE FORECAST WATERS FROM 
30N135W TO 26N140W. THE PRESSURE GRADIENT BETWEEN THE AREA OF 
HIGH PRESSURE AND LOWER PRESSURE IN THE VICINITY OF THE ITCZ IS 
MAINTAINING AN AREA OF FRESH TO STRONG TRADES FROM 10N TO 20N W 
OF 130W. THOUGH THE HIGH PRESSURE CENTER WILL DISSIPATE 
TODAY...HIGH PRESSURE WILL BUILD IN THE WAKE OF THE COLD FRONT 
MENTIONED ABOVE. THIS WILL KEEP THE AREA OF FRESH TO STRONG 
TRADES OVER THE AREA FROM 08N TO 20N W OF 130W LATE TONIGHT AND 
FROM 07N TO 17N W OF 135W LATE WED NIGHT. 

THE COLD FRONT HAS USHERED IN A FRESH SET OF NW SWELLS INTO THE 
FORECAST AREA WITH COMBINED SEAS OF 8 TO 12 FT PREVAILING W OF 
THE FRONT. THE FRONT WILL WEAKEN AND BECOME DIFFUSE OVER THE 
NEXT 24 TO 36 HOURS. SEAS WILL PEAK NEAR 14 FT IN THE NW CORNER 
TODAY...THEN WILL START TO SLOWLY SUBSIDE WHILE SPREADING SE. BY 
LATE WED...THE LEADING EDGE OF SEAS 8 FT OR GREATER WILL COVER 
THE WATERS W OF A LINE FROM 30N115W TO 06N132W.

GAP WINDS...                                                     
GULF OF TEHUANTEPEC...A COLD FRONT MOVING THROUGH THE GULF OF 
MEXICO WILL REACH THE BAY OF CAMPECHE TODAY. BEHIND THE 
FRONT...WINDS WILL FUNNEL THROUGH THE CHIVELA PASS INTO THE GULF 
OF TEHUANTEPEC. WINDS WILL INCREASE TO 20 TO 25 KT IN THE GULF 
OF TEHUANTEPEC BY THIS EVENING. WITH THE ADDED COMPONENT OF 
NOCTURNAL DRAINAGE FLOW...WINDS WILL FURTHER INCREASE TO NEAR 
GALE FORCE LATE TONIGHT INTO EARLY WED WITH SEAS BUILDING TO 
NEAR 11 FT. THIS WILL BE A SHORT LIVED GAP WIND EVENT AS WINDS 
OVER THE GULF OF MEXICO VEER WED DECREASING FLOW INTO THE GULF 
OF TEHUANTEPEC. BY WED EVENING...WINDS IN THE GULF OF 
TEHUANTEPEC WILL BE 20 KT OR LESS...AND SEAS WILL BE LESS THAN 8 
FT. 

GULF OF PAPAGAYO...WINDS WILL PULSE OVER THE GULF OF PAPAGAYO 
REACHING 20 TO 25 KT LATE TONIGHT INTO EARLY WED. WINDS WILL 
DIMINISH TO 20 KT OR LESS BY WED EVENING...AND WILL ONCE AGAIN 
INCREASE TO 20 TO 25 KT LATE WED NIGHT.

$$
AL