000
AXPZ20 KNHC 190307
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC FRI NOV 19 2010

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...
AXIS ALONG 06N80W TO 05N101W TO 11N111W TO 09N140W. NO 
SIGNIFICANT CONVECTION.

...DISCUSSION...
A WEAK 1019 MB SURFACE HIGH NEAR 27N126W 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 TO LESS THAN 20 KT. NLY GALE FORCE FLOW IS 
BLOWING THROUGH THE GULF OF TEHUANTEPEC. THIS TEHUANTEPEC EVENT 
WILL LIKELY STRENGTHEN TO AT OR NEAR STORM FORCE 
OVERNIGHT...THEN DIMINISH TO GALE FORCE FRIDAY AFTERNOON. WINDS 
WILL DIMINISH BELOW GALE FORCE SATURDAY AFTERNOON. 
 
A COLD FRONT WILL MOVE INTO NW PORTION OF THE AREA BY SAT 
MORNING AND WEAKEN AS IT DRIFTS 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 NELY TRADE WINDS W OF 115W.
 
$$
AL