000
AXPZ20 KNHC 122126
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
2205 UTC TUE FEB 12 2008

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 
2100 UTC.
 
...ITCZ...
ITCZ AXIS IS ALONG THE LINE...4N77W 6N95W 5N110W 7N125W 7N140W. 
SCATTERED MODERATE CONVECTION IS WITHIN 60 NM EITHER SIDE OF THE 
AXIS BETWEEN 100W AND 108W. 

...DISCUSSION...
UPPER LEVELS...
DEEP LAYER CYCLONIC CIRCULATION CENTERED NEAR 28N134W IS MOVING 
E 5-10 KT. ASSOCIATED TROUGH IS N OF 21N W OF 128W WITH SOME DRY 
AIR WRAPPING AROUND BASE OF THE TROUGH. ASSOCIATED BROKEN TO 
OVERCAST MULTI LEVEL CLOUDS WITH LOCAL AREAS OF EMBEDDED RAIN 
AND ISOLATED CONVECTION ARE NORTH OF 26N FROM 120W TO 135W.
 
DEEP LAYER TROUGH IS NORTHEAST OF A LINE 32N120W 20N112W TO 
BEYOND 25N100W. THIS REGION IS DRY AND CLOUD FREE IN THE MIDDLE 
AND UPPER LEVELS.

THE ABOVE TWO TROUGH SHOULD CHANGE LITTLE IN THE NEXT 48 HOURS.

MAINLY UPPER TROUGH IS ALONG 135W NORTH OF THE ITCZ TO 15N. AN 
AREA OF UPPER DIFFLUENCE PRECEDES THE TROUGH WITH MULTI LEVEL 
CLOUDS FROM 9N TO 18N FROM 118W TO 128W. THERE IS EMBEDDED 
CONVECTION IN THE AREA WITHIN 120 NM OF THE POINT 13.5N121.5W.

REMAINDER OF THE AREA IS COVERED BY BROAD ANTICYCLONIC FLOW.

SURFACE...
MODERATE RIDGE IS NORTH OF 13N WEST OF 110W. ELSEWHERE BROAD 
TROUGH IS ANALYZED.

GAP WINDS OF 20 KNOTS WILL CONTINUE IN THE GULF OF PAPAGAYO 
REGION THROUGH THE NEXT 48 HOURS.

$$
LL