000
AXPZ20 KNHC 051513
TWDEP 

TROPICAL WEATHER DISCUSSION  
NWS NATIONAL HURRICANE CENTER MIAMI FL
1605 UTC TUE FEB 05 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 EXTENDS FROM 08N81W TO 07N93W WHERE LOW LEVEL 
WINDS SUGGEST A TRANSITION TO ITCZ EXTENDING TO 04N114W TO 
BEYOND 05N140W. NO SIGNIFICANT CONVECTION.

...DISCUSSION...
WEAK HIGH PRESSURE 1030 MB IS CENTERED WELL W OF THE AREA NEAR 
33N158W. AS A RESULT...THERE IS A LOOSE PRESSURE GRADIENT 
PRODUCING MODERATE TO FRESH TRADEWINDS IN THE AREAS WHERE STRONG 
TRADES AREA TYPICALLY SEEN. OVERALL...BENIGN CONDITIONS 
CURRENTLY PREVAIL OVER THE MAJORITY OF THE FORECAST AREA WITH 
ONLY A SMALL AREA OF NW SWELLS TO 9 FT OVER THE NW PART OF THE 
AREA. OTHERWISE...THE ENTIRE AREA IS BELOW ADVISORY CRITERIA. 

HIGH PRESSURE WILL BUILD N OF THE AREA BY THU. THIS WILL BRING 
AN INCREASE THE FRESH TO STRONG TRADEWINDS GENERALLY COVERING 
THE AREA FROM 10N TO 17N W OF 130W. A COLD FRONT JUST NW OF THE 
AREA WILL DISSIPATE BEFORE MOVING INTO THE FORECAST AREA. 
HOWEVER...A FRESH SET OF NW SWELLS ASSOCIATED WITH THIS FEATURE 
WILL MOVE INTO THE NW PART OF THE FORECAST AREA BY THIS EVENING. 
COMBINED SEAS WILL PEAK NEAR 11 FT BY EARLY TOMORROW MORNING. 
AFTER THEN...THE SWELL WILL START TO SLOWLY SUBSIDE WHILE 
SPREADING S AND E THROUGH EARLY THU.

$$
AL