000
AXPZ20 KNHC 041536
TWDEP

TROPICAL WEATHER DISCUSSION                                   
NWS NATIONAL HURRICANE CENTER MIAMI FL                       
1605 UTC MON FEB 04 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 1200 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
1500 UTC.

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...           
THE MONSOON TROUGH IS ALONG 04N77W TO 02N81W TO 06N88W TO 
03N106W. THE  INTERTROPICAL CONVERGENCE ZONE AXIS EXTENDS FROM 
03N106W TO 05N119W TO 09N129W TO 07N140W. NO SIGNIFICANT 
CONVECTION.

...DISCUSSION...                                                
A MIDDLE TO UPPER LEVEL LOW IS CENTERED OVER THE WESTERN 
PORTIONS OF THE DISCUSSION AREA CENTERED NEAR 18N135W. IT 
SUPPORTS A 1011 MB LOW NEARLY COLLOCATED WITH THE UPPER LEVEL 
FEATURE AT 19N138W WITH A SURFACE TROUGH EXTENDING SOUTHWARD 
FROM THE LOW CENTER TO 14N138W. WHILE THE SURFACE FEATURE AND 
BOUNDARY CONTINUES TO WEAKEN...THE MIDDLE TO UPPER LEVEL LOW 
CONTINUES TO GENERATE AN AREA OF MAXIMUM DIFFLUENCE TO THE EAST 
OF THE TROUGH AXIS WHICH IS RESULTING IN AN AREA OF SCATTERED 
MODERATE CONVECTION FROM 13N TO 19N BETWEEN 125W AND 132W. WITH 
REGARDS TO WINDS AND SEAS...AS THE SURFACE LOW PRESSURE 
CONTINUES TO FILL OVER THE NEXT 24 TO 36 HOURS...NE TO E WINDS 
IN THE RANGE OF 20 TO 30 KT ARE EXPECTED TO GRADUALLY DECREASE 
AND SHIFT WESTWARD BY EARLY TUESDAY. SEAS ARE EXPECTED IN THE 
RANGE OF 8 TO 12 FT GENERALLY WITHIN 240 NM EITHER SIDE OF A 
LINE FROM 15N130W TO 26N140W. THEREAFTER SEAS ARE EXPECTED TO 
SUBSIDE AS WELL OVER THE NEXT 24 HOURS AS A HIGH PRESSURE RIDGE 
REGAINS CONTROL OVER THE AREA N OF 13N W OF 105W. BY 
WEDNESDAY...WINDS OVER THE NW CORNER OF THE AREA ARE EXPECTED TO 
REMAIN BELOW ADVISORY CRITERIA...HOWEVER NW SWELL WILL INTRODUCE 
SIGNIFICANT WAVE HEIGHTS IN THE RANGE OF 8 TO 11 FT NW OF A LINE 
FROM 30N129W TO 20N140W.

WINDS HAVE DECREASED TO BELOW GALE FORCE IN THE GULF OF 
TEHUANTEPEC...HOWEVER STRONG NORTHERLY WINDS ARE EXPECTED TO 
PERSIST IN THE 20 TO 30 KT RANGE THROUGH THIS AFTERNOON THEN 
GRADUALLY DECREASE TO 20 KT OR LESS FOR THE REMAINDER OF THE 
FORECAST PERIOD.

EAST-NORTHEASTERLY WINDS IN THE RANGE OF 20 TO 25 KT CONTINUE 
THROUGH THE GULF OF PAPAGAYO. THE WINDS ARE FORECAST TO FINALLY 
DECREASE TO 20 KT OR LESS LATER TODAY.

$$
HUFFMAN