000
AXPZ20 KNHC 170328
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC MON NOV 17 2008

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...
THE INTERTROPICAL CONVERGENCE ZONE IS ALONG THE LINE FROM 08N82W 
TO 06N100W TO 08N140W. NO SIGNIFICANT CONVECTION NOTED.
 
...DISCUSSION...

GAP WINDS...
STORM FORCE WINDS THROUGH THE GULF OF TEHUANTEPEC WILL DIMINISH 
FROM TO GALE STRENGTH TONIGHT INTO MON AS STRONG HIGH PRES 
REMAINS IN PLACE OVER THE WESTERN GULF OF MEXICO WEAKENS. A 
REINFORCING COOL FRONTS WILL PUSH INTO THE GULF OF MEXICO 
TUE...ALLOWING GALE FORCE WINDS TO PERSIST THROUGH AT LEAST MID 
WEEK. SIMILARLY...20 KT WINDS WILL PERSIST THROUGH THE GULF OF 
PAPAGAYO TO MID WEEK AS A COLD FRONT PUSHES FURTHER INTO THE NW 
CARIBBEAN. FURTHER NORTH...SHIP REPORTS FROM THE GULF OF 
CALIFORNIA SHOW WINDS DIMINISHING AS HIGH PRES OVER THE GREAT 
BASIN WEAKENS.

ELSEWHERE...
BLOCKING RIDGE REMAINS IN PLACE ALONG ROUGHLY 125W N OF 20N. 
SURFACE HIGH PRES REMAINS WEAK BENEATH THE LOW...ALLOWING ONLY 
MODERATE TRADES OVER MUCH OF THE AREA. THE UPPER RIDGE IS 
CENTERED TO THE NE OF A UPPER CYCLONIC CIRCULATION NEAR 18N120W. 
THIS COMPLEX CONTINUES TO IMPEDE THE EASTWARD PROGRESS OF A 
LARGE AMPLITUDE LONG WAVE TROUGH N OF HAWAII. AN ASSOCIATED COLD 
FRONT EXTENDING NE FROM HAWAII CONTINUES TO MAKE SLOW PROGRESS 
EAST AND MAY REACH THE FAR NW POINT OF THE DISCUSSION AREA NEAR 
30N140W BY MON NIGHT FOLLOWED BY 20 KT NORTHERLY WINDS. DEEP 
LAYER MOISTURE REMAINS LIMITED OVER MUCH OF THE AREA AND 
CONVECTION REMAINS FAIRLY MODEST.

$$
CHRISTENSEN