000
AXPZ20 KNHC 132225
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
2205 UTC TUE NOV 13 2007

TROPICAL WEATHER DISCUSSION FOR THE EASTERN PACIFIC OCEAN FROM 
THE EQUATOR TO 32N...EAST OF 140W. 

BASED ON 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
2130 UTC.

...ITCZ...

ITCZ AXIS IS CENTERED ALONG AXIS 8N77W 9N85W 5N94W 9N110W 
9N140W. SCATTERED MODERATE CONVECTION WITHIN 75 NM OF AXIS W OF 
126W.

...DISCUSSION...

DISTINCTIVE UPPER CYCLONE IS CENTERED NEAR 26N117W...SANDWICHED 
BETWEEN AN UPPER LEVEL ANTICYCLONE NEAR 29N131W AND ANOTHER 
UPPER ANTICYCLONE OVER THE BAY OF CAMPECHE. AN ASSOCIATED 
SURFACE LOW PRES 1014 MB IS CENTERED BENEATH THE UPPER FEATURE. 
ASCAT DATA SHOW FRESH NLY WINDS BETWEEN THE SURFACE LOW AND HIGH 
PRES TO THE WEST. QUIKSCAT AND ASCAT DATA ALSO SHOW BROAD AREA 
OF NELY TRADES ON THE PERIPHERY OF THE HIGH PRES...GENERALLY W 
OF 125W BETWEEN 10N AND 25N. FURTHER E...STRONG GAP WINDS 
CONTINUE THROUGH THE GULF OF TEHUANTEPEC. THIS WILL DIMINISH 
SLIGHTLY WED...BUT INCREASE AGAIN TO GALE FORCE BY THU IN 
RESPONSE TO A COLD FRONT PUSHING INTO THE GULF OF MEXICO. 
ENHANCED ELY FLOW OVER THE CARIBBEAN WILL ALSO INITIATE FRESH 
WINDS OVER THE GULF OF PAPAGAYO BY 24 HOURS. MEANWHILE...MODEST 
CONVECTION CONTINUES ALONG THE ITCZ AS DESCRIBED 
ABOVE...ENHANCED BY UPPER OUTFLOW BETWEEN THE UPPER LOW OFF BAJA 
AND THE UPPER RIDGE TO ITS WEST.

$$
CHRISTENSEN