000
AXPZ20 KNHC 110232
TWDEP 

TROPICAL WEATHER DISCUSSION   
NWS NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC MON APR 11 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 WAS ANALYZED FROM 09N84W 
TO 08N89W TO 09N96W THEN RESUMES FROM 06N100W TO 05N110W TO 
07N123W THEN RESUMES FROM 04N127W TO 00N134W. SCATTERED MODERATE 
ISOLATED STRONG FROM 02N TO 08N BETWEEN 84W AND 92W. SCATTERED 
MODERATE ISOLATED STRONG WITHIN 60 NM N OF AXIS BETWEEN 108W AND 
116W.

...DISCUSSION...

SURFACE HIGH PRESSURE 1030 MB IS CENTERED NEAR 32N128W WITH 
RIDGE EXTENDING SE TO NEAR 15N105W. THE PRESSURE GRADIENT 
BETWEEN THIS FEATURE AND LOWER PRESSURE IN THE VICINITY OF THE 
ITCZ IS SUPPORTING FRESH TO STRONG TRADEWINDS FROM 08N TO 23N W 
OF 115W. ADDITIONALLY THE PRESSURE GRADIENT BETWEEN THIS FEATURE 
AND TROUGHING OVER CENTRAL MEXICO IS SUPPORTING FRESH NW TO N 
WINDS OVER THE GULF OF CALIFORNIA...AND WEST OF THE BAJA 
PENINSULA. THE RIDGE WILL PREVAIL OVER THE SAME GENERAL AREA 
THROUGH THE FORECAST PERIOD...MAINTAINING THE FRESH 20 KT TRADE 
WINDS AND THE FRESH NORTHERLY WINDS OFF THE COAST OF BAJA 
CALIFORNIA. 

ELSEWHERE...NE TO E WINDS WILL CONTINUE TO PULSE TO 20 KT IN THE 
GULF OF PAPAGAYO DURING THE NEXT COUPLE OF DAYS WITH SEAS 
REMAINING JUST BELOW 8 FT. THE LARGEST AREAL EXTENT OF THE 20 KT 
WINDS WILL BE IN THE EARLY MORNING HOURS WITH THE AID OF 
NOCTURNAL DRAINAGE FLOW. 

$$
AL