000
AXPZ20 KNHC 190946
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC FRI NOV 19 2010

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 FROM 08N81W TO 06N101W TO 11N115W TO 10N140W. NO SIGNIFICANT
CONVECTION.

...DISCUSSION...
A WEAK 1022 MB SURFACE HIGH NEAR 25N128W WILL DISSIPATE OVER THE 
NEXT 24 HOURS AS A COLD FRONT APPROACHES THE AREA FROM THE NW. 
THE WEAKENED PRESSURE GRADIENT S OF THIS HIGH HAS LIMITED TRADE 
WINDS N OF THE ITCZ BELOW 20 KT. GALE FORCE WINDS ARE EVIDENT 
BLOWING THROUGH THE GULF OF TEHUANTEPEC BASED ON SURFACE OBS 
FROM IXTEPEC MEXICO. THIS TEHUANTEPEC EVENT WILL LIKELY REMAIN 
JUST BELOW STORM FORCE TODAY...THEN DIMINISH BELOW GALE FORCE 
SATURDAY AFTERNOON. 
 
A COLD FRONT WILL MOVE INTO NW PORTION OF THE AREA SAT MORNING 
THEN WEAKEN AS IT PUSHES SE THROUGH SUN. HIGH PRES BEHIND THE 
FRONT WILL TIGHTEN THE PRESSURE GRADIENT ACROSS THE W PORTION OF 
THE FORECAST AREA...AND WILL BRING A RETURN OF MODERATE TO FRESH 
TRADE WINDS W OF 115W.
 
$$
MUNDELL