000
AXPZ20 KNHC 022112
TWDEP 

TROPICAL WEATHER DISCUSSION 
NWS NATIONAL HURRICANE CENTER MIAMI FL
2205 UTC SAT JUN 02 2012

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 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
2100 UTC.

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...

MONSOON TROUGH EXTENDS FROM 09N84W TO 08N90W TO 10N110W TO 
05N130W. ITCZ EXTENDS FROM 05N130W TO BEYOND 05N140W. SCATTERED 
MODERATE ISOLATED STRONG N OF 02N TO MONSOON TROUGH E OF 85W. 
SCATTERED MODERATE WITHIN 90 NM S OF AXIS BETWEEN 116W AND 119W.

...DISCUSSION...

AT THE SURFACE...WEAK HIGH PRESSURE 1023 MB IS CENTERED NEAR 
30N135W WITH RIDGE EXTENDING SE TO NEAR 20N113W. FRESH N WINDS 
PREVAIL N OF 26N BETWEEN 120W AND 128W WHERE A LOCALLY TIGHTER 
PRESSURE GRADIENT PREVAILS BETWEEN THE HIGH PRESSURE CENTER AND 
A TROUGH OF LOW PRESSURE OVER THE BAJA CALIFORNIA PENINSULA. 
FRESH SOUTHERLY WINDS PREVAIL OVER THE FAR N GULF OF CALIFORNIA. 
WINDS ON EITHER SIDE OF BAJA CALIFORNIA NORTE WILL DIMINISH TO A 
MODERATE TO GENTLE BREEZE OVER THE NEXT 24 HOURS AS THE RIDGE 
WEAKENS. THE WEAKENING AREA OF HIGH PRESSURE WILL ENABLE A WEAK 
COLD FRONT TO MOVE INTO THE FAR NW PART OF THE AREA BY SUN NIGHT 
WITH FRESH WINDS BEHIND THE FRONT. 

CROSS-EQUATORIAL SW SWELL IS PASSING THROUGH S CENTRAL WATERS AT 
THE MOMENT WITH SEAS TO 8 FT CURRENTLY S OF 10N BETWEEN 97W AND 
120W. THE LEADING EDGE OF THE SWELL HAS PERIODS AS LONG AS 18 
SECONDS AND IS EXPECTED TO REACH THE CENTRAL AMERICAN AND 
MEXICAN COAST OVERNIGHT TONIGHT.

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AL