000
AXPZ20 KNHC 030329
TWDEP 

TROPICAL WEATHER DISCUSSION    
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC THU MAY 3 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 
0300 UTC.

...ITCZ...
AXIS 8N78W 8N90W 10N111W 4N140W. SCATTERED MODERATE ISOLATED STRONG 
CONVECTION WITHIN 60 NM OF AXIS BETWEEN 110W AND 126W.

...DISCUSSION...
UPPER LEVEL ANTICYCLONE CENTERED NEAR 13N113W ANCHORS LARGE RIDGE   
COVERING MOST OF DISCUSSION AREA. RIDGE CREST FLATTENS INTO QUASI- 
ZONAL FLOW BY AN UPPER LEVEL TROUGH WELL N OF FORECAST AREA. UPPER 
LEVEL TROUGH EXTENDS DEEP INTO THE TROPICS FROM THE EASTERN GULF OF 
MEXICO ACROSS CENTRAL AMERICA TO 6N95W. ABUNDANT TROPICAL MOISTURE 
MOVES NE ALONG UPSTREAM SIDE OF RIDGE WITH WEAK 60 KT WIND JET CORE. 
WATER VAPOR SWATH CROSSES SRN TIP OF BAJA CALIFORNIA ACROSS CENTRAL 
MEXICO INTO WRN GULF OF MEXICO.

SFC HIGH PRES 1027 MB NEAR 32N145W WITH RIDGE EXTENDING TO 19N110W. 
MODERATE NE TRADES CURRENTLY LOCATED W OF 125W EXPAND AND INTENSIFY 
SLIGHTLY THU NIGHT THROUGH SAT AS PRES GRADIENT TIGHTENS BY SFC HIGH 
TRACKING N OF AREA. RIDGE WILL ALSO INCREASE NW WINDS ALONG BAJA 
CALIFORNIA COAST WITHIN NEXT 12 HRS.   

$$
MUNDELL