000
AXPZ20 KNHC 102109
TWDEP 

TROPICAL WEATHER DISCUSSION                  
NWS NATIONAL HURRICANE CENTER MIAMI FL                         
2205 UTC THU APR 10 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 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
2100 UTC. 

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
 
THE ITCZ EXTENDS FROM 07N86W TO 03N110W TO 03N140W. SCATTERED 
MODERATE ISOLATED STRONG CONVECTION WAS NOTED WITHIN 120 NM N OF 
AXIS BETWEEN 88W AND 106W.

...DISCUSSION...                                                

HIGH PRESSURE THAT WAS OVER THE NW GULF OF MEXICO HAS SHIFTED 
NE. THIS HAS LOOSENED THE PRESSURE GRADIENT WHICH HAS FURTHER 
DIMINISHED WINDS FUNNELING INTO THE GULF OF TEHUANTEPEC. WINDS 
HAVE DIMINISHED BELOW GALE FORCE THIS AFTERNOON...WITH WINDS TO 
30 KT DEPICTED BY THE LATEST ASCAT PASS. WINDS WILL CONTINUE TO 
SLOWLY DIMINISH OVER THE NEXT 24 HOURS...AND WILL FALL BELOW 25 
KT BY FRI AFTERNOON. SEAS ASSOCIATED WITH THIS GAP WIND EVENT 
CONTINUE TO SUBSIDE WITH SEAS NEAR 15 FT THIS AFTERNOON. THE 
SWELL WILL CONTINUE TO SPREAD S AND W OVER THE NEXT COUPLE OF 
DAYS WHILE SLOWLY SUBSIDING. BY SAT AFTERNOON...SEAS GREATER 
THAN 8 FT WILL REACH AS FAR W AS 121W.

WINDS OVER THE GULF OF PAPAGAYO HAVE DIMINISHED BELOW GALE FORCE 
THIS AFTERNOON WITH LATEST ASCAT PASS DEPICTING WINDS TO 30 KT. 
WINDS WILL DIMINISH SLIGHTLY WITH FRESH TO STRONG WINDS  
PREVAILING OVER THE GULF OF PAPAGAYO THROUGH SAT AFTERNOON. 

LOW PRESSURE OF 1012 MB IS CENTERED OVER THE NW WATERS NEAR  
29N137W WITH ASSOCIATED COLD FRONT EXTENDING OVER THE FORECAST 
WATERS FROM 30N132W TO 26N131W TO 19N139W. THE PRESSURE GRADIENT 
OVER THE FORECAST AREA IS MAINTAINING MODERATE TO FRESH 
TRADEWINDS S OF 18N AND W OF 115W. LINGERING SEAS TO 8 FT ARE 
FOUND FROM 06N TO 10N W OF 130W. THIS AREA OF SEAS WILL DIMINISH 
BELOW 8 FT BY THIS EVENING. ANOTHER AREA OF SEAS TO 9 FT IN 
MIXED SE AND NW SWELLS ARE FOUND OVER FORECAST WATERS S OF 02N 
BETWEEN 110W AND 125W. BY FRIDAY...THIS AREA OF SWELLS WILL MIX 
WITH NE SWELLS GENERATED FROM THE GULFS OF TEHUANTEPEC AND 
PAPAGAYO GAP WIND EVENTS.

$$ 
AL