000
AXPZ20 KNHC 010305
TWDEP 

TROPICAL WEATHER DISCUSSION    
NWS NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC TUE MAY 1 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 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0300 UTC.

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

MONSOON TROUGH 10N85W TO 05N105W...THEN ITCZ TO 07N120W TO 
01N140W. SCATTERED MODERATE ISOLATED STRONG CONVECTION WAS NOTED 
FROM 02N TO 07N BETWEEN 80W AND 92W. SCATTERED MODERATE 
CONVECTION WAS NOTED WITHIN 120 NM OF AXIS BETWEEN 105W AND 
110W. SCATTERED MODERATE CONVECTION WAS NOTED WITHIN 90 NM OF 
AXIS BETWEEN 122W AND 128W.

...DISCUSSION...

W OF 110W...NEARLY STATIONARY 1032 MB HIGH PRESSURE IS CENTERED 
NEAR 34N146W 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 
30N128W TO 20N135W AND FROM 05N TO 20N W OF 130W. WINDS AND SEAS 
WILL CONTINUE TO DECREASE 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