000
AXPZ20 KNHC 231509
TWDEP 

TROPICAL WEATHER DISCUSSION 
NWS NATIONAL HURRICANE CENTER MIAMI FL
1605 UTC SAT JUN 23 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 1200 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH
1500 UTC.

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
THE MONSOON TROUGH EXTENDS FROM 20N107W TO 05N128W THEN ITCZ TO 
04N140W. ISOLATED MODERATE CONVECTION WAS NOTED WITHIN 120 NM S 
OF AXIS.

...DISCUSSION...

BENIGN CONDITIONS PREVAIL OVER THE TROPICAL NORTHEAST PACIFIC 
WATERS. HIGH PRESSURE 1032 MB IS CENTERED NEAR 39N153W WITH 
SURFACE RIDGE EXTENDING SE TO NEAR 24N122W. DISSIPATING LOW 
PRESSURE 1007 MB PREVAILS NEAR 20N107W...ANCHORED TO THE MONSOON 
TROUGH. A TROUGH OF LOW PRESSURE EXTENDS ACROSS THE GULF OF 
CALIFORNIA EXTENDING FROM LOW PRESSURE OVER SOUTHERN NEVADA. THE 
PRESSURE GRADIENT BETWEEN THESE AREAS OF LOW PRESSURE AND THE 
RIDGE MENTIONED ABOVE IS RESULTING ON FRESH NW FLOW N OF 27N 
WEST OF THE COAST OF BAJA CALIFORNIA TO 120W. THE LOW PRESSURE 
CENTER ANCHORED TO THE MONSOON TROUGH IS EXPECTED TO DISSIPATE 
OVER THE NEXT 24 HOURS. THIS WILL HELP DECREASE THE PRESSURE 
GRADIENT AND DIMINISH WINDS BELOW 20 KT BY SUN MORNING. OTHER 
THAN THIS AREA OF FRESH 20 KT WINDS...WINDS AND SEAS WILL REMAIN 
BELOW 20 KT AND 8 FT THROUGH MON MORNING. 

$$
AL