000
AXPZ20 KNHC 021003
TWDEP 

TROPICAL WEATHER DISCUSSION    
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC MON MAR 02 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...
AXIS ALONG 04N77W TO 02N100W TO 02N140W.  
NO SIGNIFICANT CONVECTION.

...DISCUSSION...
STRONG DEEP LAYER TROUGH OVER NW PART OF AREA 32N126W TO  
22N140W WITH STRONG 150 KT SW JET STREAM ADVECTING SWATH OF 
TROPICAL MOISTURE INTO CALIFORNIA.  BROAD UPPER LEVEL RIDGE 
ALONG 112W BLOCKS ANY SIGNIFICANT AMOUNT OF MOISTURE INTO BAJA 
CALIFORNIA AS IT KEEPS AIR MASS VERY DRY UNDER ITS MODERATE TO 
STRONG SUBSIDENCE COVER. 

STATIONARY FRONT FROM 30N126W TO 23N131W LOST ITS PUNCH AS DEEP 
LAYER TROUGH SUPPORTING IT SWUNG NE.  FRONT DISSIPATES LATE 
TODAY AND ANOTHER COLD FRONT APPROACHES FROM NW WITHIN NEXT 24 
HRS.  STRONG SURFACE HIGH PRES BEHIND STATIONARY FRONT PRODUCING 
LARGE LONG PERIOD SWELLS SPREADING INTO E PAC W OF 120W ALL THE 
WAY TO THE EQUATOR.  

HEALTHY GULF OF MEXICO COLD FRONT CAUSING STORM FORCE WINDS IN 
GULF OF TEHUANTEPEC EXPECTED TO DIMINISH TO GALE FORCE LATER 
TODAY AND BE BELOW GALE FORCE TUE AS FRONT MOVES FURTHER E.  
UPON ENTERING WRN CARIBBEAN BASIN...FRONT FORCES INCREASING NE 
WINDS ACROSS CENTRAL AMERICA MOUNTAIN GAPS EMERGING IN E PAC 
ALONG GULFS OF PAPAGAYO AND FONSECA.  MODEL GUIDANCE BRINGS 
WINDS SHORT OF GALE FORCE.  SIMILARLY...NORTHERLY WINDS IN GULF 
OF PANAMA INCREASE TO 25 KT TONIGHT AND CONTINUE THROUGH END OF 
FORECAST PERIOD.

$$
WALLY BARNES