000
AXPZ20 KNHC 200258
TWDEP 

TROPICAL WEATHER DISCUSSION     
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC TUE MAR 20 2007

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 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY
THROUGH 2030 UTC.

...ITCZ...
ITCZ 3N78W 5N90W 4N105W 4N140W. NO SIG CONVECTION. 

...DISCUSSION...

UPPER LEVELS..
MID TO UPPER LEVEL TROUGH EXTENDS FROM 32N134W TO 22N140W. 
TROUGH IS DEEPENING AND MOVING E ABOUT 20 KT. STRONG SW TO W 
WINDS...50 TO 70 KT...ARE BETWEEN TROUGH AXIS AND 20N W OF 
110W. 

ANOTHER TROUGH EXTENDS FROM 19N98W TO 4N106W. THIS TROUGH IS 
NEAR STATIONARY. 

UPPER LEVEL TROPICAL MOISTURE IS NOTED E OF 120W. DRY CONDITIONS 
PREVAIL ELSEWHERE TO THE W.

LOWER LEVELS...
A COLD FRONT EXTENDS FROM 32N130W TO 20N137W...MOVING ESE 15 TO 
20 KT. A WELL DEFINED 90-100 NM BAND OF LOW/MID CLOUDS WITH 
EMBEDDED RAIN DEFINES THE FRONTAL ZONE.

A 1021MB HIGH PRESSURE CENTER NEAR 29N123W IS DISSIPATING.

FROM 8N TO 12N E OF 92W NE WIND 20 TO 25 KT SEAS TO 9 FT. 

N OF 14N FROM 94W TO 96W NE WINDS 20 KT SEAS LESS THAN 8 FT.

$$
FETS