000
AXPZ20 KNHC 240355
TWDEP 

TROPICAL WEATHER DISCUSSION      
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC TUE MAR 24 2009

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

BASED ON 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0315 UTC.

...ITCZ...

ITCZ AXIS IS CENTERED ALONG 04N78W TO 01N100W TO 03N120W TO 
04N140W. SCATTERED MODERATE CONVECTION IS LOCATED WITHIN 150 NM 
N OF AXIS BETWEEN 85W AND 88W. SCATTERED MODERATE TO STRONG 
CONVECTION IS LOCATED FROM 05N TO 09N BETWEEN 123W AND 134W.

...DISCUSSION...

W OF 110W..
A WELL-DEFINED MIDDLE/UPPER LEVEL CYCLONIC CIRCULATION...ABOUT 
10 TO 12 DEGREES IN DIAMETER...IS CENTERED NEAR 24N135W AND 
MOVING NE 10 TO 15 KT. THIS FEATURE IS FORECAST TO CONTINUE TO 
MOVE NE OVER THE NEXT ONE TO TWO DAYS AND OPEN INTO A TROUGH 
ORIENTED ALONG A 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 115W. 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 1036 MB HIGH NEAR 35N139W SE THROUGH 
28N128W TO 18N110W. TRADEWINDS FROM 20 TO 25 KNOTS ARE LOCATED N 
OF 12N W OF 124W AND SEAS 9 TO 13 FT IN NW SWELL. ALSO N OF 23N 
E OF 124W NW TO N WINDS ARE 20 TO 25 KT AND SEAS 9 TO 14 FT.
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 10N. SOUTHWESTERLY WINDS ALOFT HAVE 
INCREASED 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