000
AXPZ20 KNHC 240929
TWDEP 

TROPICAL WEATHER DISCUSSION      
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC TUE MAR 24 2009

TROPICAL WEATHER DISCUSSION FOR THE EASTERN PACIFIC OCEAN FROM 
THE EQUATOR TO 32N...EAST OF 140W. 

BASED ON 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0900 UTC.

...ITCZ...

ITCZ AXIS IS CENTERED ALONG 04N78W TO 03N100W TO 01N110W TO 
05N128W TO 05N140W. SCATTERED MODERATE ISOLATED STRONG 
CONVECTION IS LOCATED WITHIN 60 NM EITHER SIDE OF A LINE FROM 
06N125W TO 05N131W. 

...DISCUSSION...

W OF 110W..
A WELL-DEFINED MIDDLE/UPPER LEVEL CYCLONIC CIRCULATION...ABOUT 
10 TO 12 DEGREES IN DIAMETER...IS CENTERED NEAR 24.5N134W AND 
MOVING NE 10 TO 15 KT. THIS FEATURE IS FORECAST TO CONTINUE TO 
MOVE NE OVER THE TWO DAYS AND WILL OPEN INTO A TROUGH ORIENTED 
ALONG AN ELONGATED NE TO SW AXIS. A LARGE AREA OF SOUTHWESTERLY 
FLOW ALOFT IS LOCATED E OF THE CIRCULATION N OF 18N E OF ABOUT 
130W INTO MEXICO AND ALSO S OF 18N TO 10N W OF 120W. SATELLITE 
CLOUD DRIFT WINDS IN THIS AREA ARE IN THE 45 TO 60 KNOT RANGE. 
MODERATE WESTERLY WINDS ALOFT ARE LOCATED OVER THE DEEP TROPICS 
S OF 10N TO THE EQUATOR W OF 110W. AT THE SURFACE A RIDGE IS 
LOCATED FROM A STATIONARY 1038 MB HIGH NEAR 35N140W SE THROUGH 
30N132W TO 20N115W. TRADEWINDS FROM 20 TO 25 KNOTS ARE LOCATED N 
OF 12N W OF 124W AND SEAS 9 TO 13 FT IN NW AND NE SWELL. ALSO N 
OF 23N E OF 124W NW TO N WINDS ARE 20 TO 25 KT AND SEAS 9 TO 14 
FT IN NW SWELL. IN THE GULF OF CALIFORNIA N OF 26N WINDS ARE NW 
20 TO 25 KT AND SEAS LESS THAN 8 FT. 

E OF 110W...
WATER VAPOR IMAGERY INDICATES SUBSIDENCE OVER THE E PART OF THE 
DISCUSSION AND IS MOST PRONOUNCED OVER NORTHERN CENTRAL AMERICA 
WESTWARD TO NEAR 102W N OF 08N. SOUTHWESTERLY WINDS ALOFT HAVE 
INCREASED TO UP TO 50 KNOTS OVER THE AREA S OF 10N TO NEAR THE 
EQUATOR E OF 95W. AT THE SURFACE OVER THE GULF OF PAPAGAYO NE 
WINDS ARE 20 KNOTS AND SEAS LESS THAN 8 FT. OVER THE GULF OF 
PANAMA N WINDS ARE TO 20 KT AND SEAS LESS THAN 8 FT.

$$
CAB