000
AXPZ20 KNHC 070327
TWDEP 

TROPICAL WEATHER DISCUSSION 
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC FRI NOV 07 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 AXIS IS ALONG THE LINE... 
10N84W TO 06N100W TO 08N115W TO 08N140W. SCATTERED MODERATE WITH 
ISOLATED STRONG CONVECTION WITHIN 75 NM OF THE POINT 09N127.5W.

...DISCUSSION...

UPPER TROUGH IS NORTH OF 25N AND WILL PERSIST THROUGH AT LEAST 
48 HOURS AND STRENGTHEN SOME AFTER 24 HOURS. OTHERWISE A BROAD 
RIDGE IS OVER THE AREA. 

A PLUME OF UPPER LEVEL MOISTURE AND BROKEN TO OVERCAST HIGH 
CLOUDS IS FROM 13N TO 23N WEST OF 125W. THIS MOISTURE IS 
EMANATING FROM ITCZ CONVECTIVE ACTIVITY CENTERED WELL WEST OF 
THE AREA. A STRONG SHORTWAVE JUST CROSSING 140W IS ALSO 
CONTRIBUTING TO THIS FLOW OF MOISTURE INTO THE AREA.

THE ATMOSPHERE EAST OF 105W IS DRY AND CLOUD FREE IN THE MIDDLE 
AND UPPER LEVELS EXCEPT FOR CONVECTION ALONG THE ITCZ. THE LOWER 
LEVELS ARE ALSO CLOUD FREE NORTH OF THE ITCZ.

MODERATE RIDGE IS NORTH OF 13N WEST OF 107W. LOW PRESSURE...THE 
REMNANT OF POLO...IS LOCATED NEAR 10N126W 1012 MB AND IS MOVING 
WEST 10 KT AND IS FORECAST TO DISSIPATE IN 12 TO 18 HOURS. 
ELSEWHERE A BROAD TROUGH IS ANALYZED IN THE LOWER LEVELS.
 
STRONG NORTHERLY WINDS OBSERVED BY A NOAA SHIP IN THE GULF OF 
CALIFORNIA CAUSED A GALE WARNING TO BE ISSUED FOR THE AREA NORTH 
OF 27N IN THE GULF OF CALIFORNIA THIS MORNING. THE WINDS ARE 
EXPECTED TO RAPIDLY DIMINISH AFTER 24 HOURS.

$$
LL