000
AXPZ20 KNHC 030337
TWDEP 

TROPICAL WEATHER DISCUSSION 
NWS NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC SUN JUN 03 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 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0300 UTC.

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH EXTENDS FROM 10N84W TO 07N90W TO LOW PRES NEAR 
09N110W TO LOW PRES NEAR 07N118W TO 05N130W. ITCZ EXTENDS FROM 
05N130W TO BEYOND 05N140W. SCATTERED MODERATE CONVECTION WAS 
NOTED WITHIN 150 NM OF AXIS BETWEEN 91W AND 94W. SCATTERED 
MODERATE TO STRONG CONVECTION WAS NOTED WITHIN 90 NM OF LOW PRES 
NEAR 07N118W.

...DISCUSSION...

WEAK HIGH PRESSURE 1022 MB IS CENTERED NEAR 29N140W WITH RIDGE 
EXTENDING SE TO NEAR 20N113W. FRESH N WINDS PREVAIL N OF 28N 
BETWEEN 120W AND 125W 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 THE S CENTRAL 
WATERS WITH SEAS TO 8 FT FROM 06N TO 15N BETWEEN 102W AND 117W. 
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.

$$
AL