000
AXPZ20 KNHC 270241
TWDEP 

TROPICAL WEATHER DISCUSSION   
NWS NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC SUN MAR 27 2011

TROPICAL WEATHER DISCUSSION FOR THE EASTERN PACIFIC OCEAN FROM 
THE EQUATOR TO 32N...EAST OF 140W.

BASED ON 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0230 UTC.

...ITCZ...

THE INTERTROPICAL CONVERGENCE ZONE AXIS IS ANALYZED FROM 08N83W 
TO 03N99W TO 03N140W WITH SCATTERED MODERATE CONVECTION WITHIN 
75 NM OF AXIS BETWEEN 110W AND 130W. 

...DISCUSSION...

AS IT IS NORMAL FOR THIS TIME OF YEAR...THE NORTHEASTERN PACIFIC 
IS RELATIVELY QUIET. THERE ARE NO GALES...NO GAP WIND EVENTS... 
NO ACTIVE COLD FRONTS...AND NO DEEP CONVECTION. MODEL GUIDANCE 
SHOWS VERY LITTLE SIGNIFICANT CHANGE IN THE SHORT-TERM. 

A SURFACE RIDGE EXTENDS ACROSS THE AREA FROM 27N140W TO 25N117W. 
A TIGHT PRESSURE GRADIENT IS PRODUCING FRESH TO STRONG NW WINDS 
N OF 24N WITHIN 90 NM OF THE COAST OF BAJA CALIFORNIA. THE 
PRESSURE GRADIENT BETWEEN THE RIDGE AND LOWER PRESSURE NEAR THE 
ITCZ IS PRODUCING FRESH 20 KT TRADEWINDS FROM 06N TO 19N W OF 
129W. THE FRESH WINDS IN EACH OF THESE AREAS ARE EXPECTED TO 
MAINTAIN THROUGH THE FORECAST PERIOD. A WEAK COLD FRONT EXTENDS 
ACROSS THE FAR NW PART OF THE AREA FROM 30N128W TO 28N135W WITH 
LITTLE IMPACT. THE FRONT WILL CONTINUE TO DISSIPATE OVER THE 
FORECAST WATERS OVER THE NEXT 12 HOURS. 

THE FORECAST AREA WEST OF 100W IS DOMINATED BY LONG PERIOD NW 
SWELL WITH SIGNIFICANT WAVE HEIGHTS UP TO 13 FT. THE WAVE 
HEIGHTS WILL SLOWLY DIMINISH OVER THE NEXT 48 HOURS...WITH PEAK 
SEAS OF 11 FT BY SUNDAY NIGHT AND 10 FT BY MONDAY NIGHT. 

$$
AL