000
AXPZ20 KNHC 280401
TWDEP 

TROPICAL WEATHER DISCUSSION     
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC WED FEB 28 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 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0345 UTC.

...ITCZ...
ITCZ AXIS ALONG  5N77W  6N82W  5N98W  7N117W  5N140W.  SCATTERED 
MODERATE ISOLATED STRONG CONVECTION WITHIN 120 NM OF AXIS FROM 
115W TO 130W AND WITHIN 60 NM OF AXIS FROM 87W TO 91W.  

...UPPER DISCUSSION...
BROAD MID/UPPER LEVEL RIDGE DOMINATES ANTICYCLONIC FLOW OVER 
ENTIRE E PAC.  UPPER LEVEL LONGWAVE TROUGH N OF FORECAST WATERS 
FROM NW CONUS TO 32N131W TO 16N154W FLATTENS RIDGE CREST LEAVING 
MOSTLY STRONG ZONAL FLOW UNDER 130 KT JET CORE.  LARGE AMOUNT OF 
TROPICAL MOISTURE ADVECTED BY JET ACROSS BASIN INTO BAJA 
CALIFORNIA AND NRN MEXICO BUT ONLY A COUPLE OF SMALL AREAS ALONG 
ITCZ AND SHORT LINE ALONG WEAK COLD FRONT 30N117W TO 28N124W 
HAVE UPLIFT FOR CONVECTION DEVELOPMENT .  

...AT THE SURFACE...
TRADES PERSIST W OF 130W EXPECTED TO STRENGTHEN NEXT 24 HRS AS 
1038 MB HIGH PRES CENTER MOVES SE CLOSER TO FORECAST WATERS.  

...GAP WINDS...
STRONG WINDS OF GALE FORCE OVER SW CARIBBEAN SNEAKING THROUGH 
GULF OF PAPAGAYO INTO E PAC AND GETTING STRONGER NEXT 24 HRS. 

$$
WALLY BARNES