000
AXPZ20 KNHC 062121
TWDEP 

TROPICAL WEATHER DISCUSSION    
NWS NATIONAL HURRICANE CENTER MIAMI FL
2205 UTC FRI APR 06 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...TROUGH FROM 
08N84W TO 05N90W TO 00N96W TO. ITCZ FROM 03N116W TO 04N130W TO 
03N140W. SCATTERED MODERATE TO ISOLATED STRONG IS S OF PANAMA 
FROM 03N TO 08N BETWEEN 81W AND 86W. 

DISCUSSION...
BROAD UPPER LEVEL TROUGH IS ACROSS THE DISCUSSION AREA N OF 10N 
W OF 120W. AN UPPER LEVEL RIDGE IS E OF THE TROUGH N OF 15N TO 
THE COAST OF MEXICO AT 100W. MODERATE TO STRONG UPPER LEVEL 
SUBSIDENCE WITH DRY STABLE AIR IS FROM 7N TO 20N W OF 100W. 
ANOTHER UPPER LEVEL RIDGE EXTENDS FROM AN ANTICYCLONIC 
CIRCULATION OVER PANAMA NW ACROSS CENTRAL AMERICA TO THE YUCATAN 
PENINSULA. ABUNDANT MOISTURE IS S OF CENTRAL AMERICA E OF 97W TO 
BEYOND COLOMBIA. 

A 1027 MB HIGH IS JUST N OF THE AREA AT 35N127W. A COLD FRONT IS 
FURTHER W AT 30N149W APPROACHING THE NW CORNER AT 30N140W. 20 KT 
N WINDS AND NW SWELL ARE N OF 24N BETWEEN 116W AND 124W. 
LINGERING NW SWELL WITH SEAS 8 TO 10 FT ARE ELSEWHERE N OF 20N W 
OF 115W. ELSEWHERE...EXPECT SOME CROSS EQUATORIAL 8 FT SW SWELL 
TO REACH 10N W OF 110W IN 24 HOURS. EXPECT THIS SWELL TO REACH 
ALL THE WAY TO 20N E OF 130W IN 48 HOURS. ALSO EXPECT THE COLD 
FRONT TO EXTEND FROM 30N134N TO 27N140W IN 24 HOURS AND FROM 
30N129W TO 24N140W IN 48 HOURS WITH RAIN AND SHOWERS. NW SWELL 
WITH BUILD BEHIND THE FRONT. 

$$
FORMOSA