000
AXPZ20 KNHC 302116
TWDEP 

TROPICAL WEATHER DISCUSSION    
NWS NATIONAL HURRICANE CENTER MIAMI FL
2205 UTC MON APR 30 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 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
2100 UTC.

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

MONSOON TROUGH 09N85W TO 05N105W...THEN ITCZ TO 07N120W TO 
01N140W. CLUSTER OF MODERATE TO STRONG CONVECTION FROM 04N TO 
07N BETWEEN 78W AND 84W. SCATTERED MODERATE WITHIN 120 NM OF 
AXIS BETWEEN 90W AND 100W. SCATTERED MODERATE WITHIN 90 NM OF 
AXIS BETWEEN 120W AND 130W.

...DISCUSSION...

W OF 110...NEARLY STATIONARY 1032 MB HIGH PRESSURE IS CENTERED 
NEAR 33N146W EXTENDS A RIDGE SE ACROSS THE FORECAST WATERS TO 
NEAR 18N108W. THE PRESSURE GRADIENT BETWEEN THIS AREA OF HIGH 
PRESSURE AND TROUGHING OVER MEXICO AS WELL AS THE PRESSURE 
GRADIENT BETWEEN THIS AREA OF HIGH PRESSURE AND LOWER PRESSURE 
IN THE VICINITY OF THE ITCZ IS MAINTAINING FRESH WINDS W OF LINE 
30N125W TO 20N131W AND FROM 05N TO 20N W OF 130W. WINDS AND SEAS 
WILL CONTINUE TO DIMINISH ACROSS THE N WATERS OVER THE NEXT 
COUPLE OF DAYS AS THE HIGH WEAKENS AND THE PRES GRADIENT RELAXES 
ACROSS THE BASIN. 

E OF 110W...GENTLE TO MODERATE BREEZE AND SEAS BELOW 8 FT ARE 
NOTED. LITTLE CHANGE TO THIS SYNOPTIC WEATHER PATTERN IS 
EXPECTED THROUGH WED. 

$$
AL