000
AXPZ20 KNHC 061504
TWDEP 

TROPICAL WEATHER DISCUSSION  
NWS NATIONAL HURRICANE CENTER MIAMI FL
1605 UTC WED FEB 06 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 08N83W TO 06.5N97W WHERE LOW 
LEVEL WINDS SUGGEST A TRANSITION TO ITCZ WHICH EXTENDS TO BEYOND 
05N140W. NO SIGNIFICANT CONVECTION WAS NOTED.


...DISCUSSION...
WEAK HIGH PRESSURE...1030 MB...IS CENTERED NW OF THE AREA NEAR 
33N152W WITH ASSOCIATED RIDGE EXTENDING SE TO NEAR 20N112W. WITH 
THE DISTANCE OF THE HIGH PRESSURE CENTER FROM THE AREA...THE 
PRESSURE GRADIENT REMAINS WEAK. AS A RESULT BENIGN CONDITIONS 
ARE SEEN ACROSS THE FORECAST AREA...WITH MODERATE TO FRESH 
TRADEWINDS PREVAILING. A NEW SET OF NW SWELLS HAS MOVED INTO THE 
FAR NW PART OF THE FORECAST AREA...WITH SEAS 8-10 FT FOUND THIS 
MORNING NW OF A LINE 30N130W TO 21N140W.

THE HIGH PRESSURE CENTER WILL MOVE EASTWARD AND CLOSER TO THE 
FORECAST AREA OVER THE NEXT COUPLE OF DAYS WHILE WEAKENING. THE 
CLOSER PROXIMITY OF THE HIGH WOULD TEND TO TIGHTEN THE PRESSURE 
GRADIENT. HOWEVER...SINCE THE HIGH WILL WEAKEN...IT IS NOT 
EXPECTED TO TIGHTEN THE PRESSURE GRADIENT ENOUGH TO INCREASE 
WINDS TO ADVISORY CRITERIA. THE NW SWELLS HAVE PEAKED OVER THE 
FORECAST AREA..AND WILL CONTINUE TO SPREAD S AND E OVER THE NEXT 
COUPLE OF DAYS WHILE SLOWLY SUBSIDING. 

$$
AL