000
AXPZ20 KNHC 120317
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC SAT AUG 12 2006

TROPICAL WEATHER DISCUSSION FOR THE EASTERN PACIFIC OCEAN FROM 
THE EQUATOR TO 32N...EAST OF 140W. THE FOLLOWING INFORMATION IS 
BASED ON SATELLITE IMAGERY...WEATHER OBSERVATIONS...RADAR...AND 
METEOROLOGICAL ANALYSIS.

BASED ON 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0300 UTC.

...TROPICAL WAVES...

TROPICAL WAVE ALONG 102W FROM 2N TO 16N MOVING W 12 KT. THE WAVE 
HAS NO APPARENT SIGNATURE EXCEPT FOR A SLIGHT INFLECTION ALONG 
THE ITCZ AXIS. CONVECTION IS RELATED TO THE ITCZ.

TROPICAL WAVE ALONG 137.5W FROM 3N TO 16N MOVING W 15 KT. 
CONVECTION IS DIMINISHING IN SPITE OF THE FACT IT HAS GOOD 
TROPICAL WAVE SIGNATURE.

...ITCZ...

ITCZ AXIS IS CENTERED ALONG...5N77W 10N100W 11N140W. 
SCATTERED STRONG NEAR THE COAST OF PANAMA WEST OF THE CANAL TO 
THE NICOYA PENINSULA OF COSTA RICA.

...DISCUSSION...

UPPER LEVELS...
MIDDLE AND UPPER LEVEL ANTICYCLONE IS CENTERED NW OF THE AREA 
WITH ASSOCIATED RIDGE BARELY IN THE AREA NORTH OF 28N WEST OF 
135W.  ANOTHER MIDDLE AND UPPER LEVEL ANTICYCLONE IS CENTERED 
OVER SOUTHERN NEW MEXICO AND WEST TEXAS AND EXTENDS OVER THE SEA 
OF CORTEZ AND THE NORTH PART OF MEXICO.

OTHERWISE BROAD WEAK TROUGH IS OVER THE AREA.

SURFACE...
MODERATE RIDGE IS NORTH OF 15N WEST OF 110W.  ELSEWHERE THERE IS 
A BROAD WEAK TROUGH.

OVERCAST STRATOCUMULUS IS NORTH OF 27N FROM 118W TO 132W.
ELSEWHERE BROKEN TO OCCASIONALLY SCATTERED STRATOCUMULUS IS 
NORTH OF THE ITCZ WEST OF 120W.

$$
LL