000
AXPZ20 KNHC 290956
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC FRI NOV 29 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.

...SPECIAL FEATURE...
GULF OF TEHUANTEPEC...WINDS CONTINUE AT STRONG N-NE GALE FORCE...
DOWN FROM PREVIOUS STORM FORCE...WITHIN 45 NM FROM LINE 16N95W 
TO 13N97W THEN CONTINUE AS STRONG NORTHEASTERLIES WITHIN 120 NM
TO 10N101W WITH SEAS SUBSIDING BUT STILL UP TO 17 FT.  NE SWELLS
PRODUCED BY EVENT EXTEND FROM 04N TO 14N AS FAR W AS 110W AND
BLEND WITH LARGE SOUTHERLY SWELL TO BUILD SEAS UP TO 12 FT.
GULF OF TEHUANTEPEC EVENT EXPECTED TO CONTINUE BEYOND FORECAST
PERIOD...ALBEIT WEAKENING TO MINIMAL GALE FORCE.

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... 
MONSOON TROUGH EXTEND FROM 08N82W TO 07N92W THEN ITCZ TO 10N130W
TO 08N140W. SCATTERED MODERATE ISOLATED STRONG CONVECTION WITHIN
45 NM OF AXIS FROM 88W TO 108W.  

...DISCUSSION...
LARGE AMPLITUDE UPPER LEVEL TROUGH EXTEND FROM WELL NE OF AREA
TO DEEP LAYER CYCLONE AT 33N126W TO 12N140W.  VERY DRY SUBSIDING
AIR MASS W OF TROUGH AXIS CAP MOISTURE TO LOW LEVELS ONLY.  
WEAKENING COLD FRONT DRAGS INTO BASIN FROM LOW PRES BRINGING 
FRESH TO STRONG NE BREEZE W OF FRONT BUILDING SEAS TO 12-13 FT AS
LARGE NW SWELLS MERGE AND RESULT IN COMBINED SEAS TO 16 FT.

...ELSEWHERE AT THE LOWER LEVELS... 
FRONT DISSIPATES LATER TODAY AS LOW PRES WEAKENS 1011 MB AS IT
MOVES S TO 26N128W...THEN OPENS INTO SURFACE TROUGH FROM 25N123W
TO 07N123W.  FRESH TO STRONG NE BREEZE W OF TROUGH CONTINUES
THROUGH FORECAST PERIOD.

GAP WINDS...FRESH N-NE WINDS SURGE THROUGH GULF OF PAPAGAYO...
EXPECTED TO DIMINISH AS STATIONARY FRONT OVER NW CARIBBEAN
FORCING NE WINDS ACROSS NICARAGUA DISSIPATES SUN.
 
$$
WALLY BARNES