000
AXPZ20 KNHC 240353
TWDEP 

TROPICAL WEATHER DISCUSSION 
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC MON MAR 24 2008

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 
0300 UTC.

...ITCZ...
ITCZ AXIS ALONG 8N82W  3N98W  7N115W  4N140W. 
SCATTERED MODERATE ISOLATED STRONG WITHIN 90 NM OF AXIS E OF 
110W AND W OF 136W.  SCATTERED MODERATE TO STRONG 240 NM OF 
AXIS FROM 110W TO 121W. 

...DISCUSSION...
UPPER LEVELS...
BROAD RIDGE WITH AXIS TILTED NW EXTENDS FROM 2N100W TO 30N138W.  
W SIDE OF LARGE AMPLITUDE TROUGH FLATTENS NE SIDE OF RIDGE WITH 
115 KT JET CORE WHILE TROUGH DIGS DEEP INTO E PAC FROM 12N86W TO 
EQUATOR AT 98W.  CONVERGING WINDS MAINTAIN DRY AIR MASS ALONG 
AND 900 NM W OF TROUGH AXIS DUR TO MODERATE TO STRONG 
SUBSIDENCE.  UPPER LEVEL MOISTURE DEBRIS FROM ITCZ BETWEEN 107W 
AND 122W ADVECTED N AND NE BY RIDGE NOW APPROACHING SRN TIP OF 
BAJA CALIFORNIA.  

DOWNSTREAM FROM TROUGH...UPPER LEVEL RIDGE ANCHORED OVER 
CARIBBEAN SEA BLOCKS ANY SIGNIFICANT MOVE E BY TROUGH EVENTUALLY 
WEAKENING IT AND LIFTING IT NE MERGING BOTH RIDGES INTO ONE 
BROAD COVERING E PAC E OF 120W. 

SURFACE...
HIGH PRES CENTER 1028 MB AT 33N132W HAS RIDGE EXTEND SE TO 
15N103W.  RIDGE SUPPORTS MODERATE TRADES W OF 125W AND ENHANCES 
N WINDS ALONG CALIFORNIA COAST WHICH ENTER E PAC IN 48 HRS JUST 
W OF BAJA PENINSULA.  

WINDS OFF COAST OF GULF OF PAPAGAYO EXPECTED TO INCREASE WITHIN 
NEXT 12 HRS AND LAST THROUGH ENTIRE FORECAST PERIOD.

GULF OF TEHUANTEPEC WILL HAVE RESURGENCE OF N GAP WINDS 
EXTENDING S AND SW TO REACH GALE FORCE WITHIN 12 HRS AND LAST 
THROUGH FORECAST PERIOD.

$$
WALLY BARNES