000
AXPZ20 KNHC 110329
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC WED JUN 11 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 
0315 UTC.

...TROPICAL WAVE...

TROPICAL WAVE IS ALONG 85W N OF 6N MOVING W ABOUT 12 KT. 
SCATTERED TO STRONG CONVECTION IS OVER NORTHERN COSTA RICA.

...ITCZ...

INTERTROPICAL CONVERGENCE ZONE (ITCZ) IS CENTERED ALONG 7N78W 
8N85W 5N100W 5N110W 7N120W 9N128W 6N140W. SCATTERED 
MODERATE/ISOLATED STRONG CONVECTION IS WITHIN 120 NM S OF THE 
AXIS BETWEEN 90W-94W.

...DISCUSSION...

E OF 120W...
A MID/UPPER LEVEL ANTICYCLONIC CIRCULATION MOVING SEWD IS NEAR
26N115W WITH A RIDGE EXTENDING NWWD TO OUT OF THE AREA AT 
32N120W. ANOTHER RIDGE EXTENDS SE FROM THE ANTICYCLONE TO
NEAR 18N113W. ANOTHER MID/UPPER LEVEL ANTICYCLONIC IS JUST 
INLAND THE COAST OF MEXICO NEAR MANZANILLO...AND IS HELPING
TO MAINTAIN ACTIVE CLUSTERS OF SCATTERED MODERATE CONVECTION
OVER MUCH OF CENTRAL MEXICO.

CONVECTION REMAINS RATHER LIMITED ALONG THE ITCZ AS STRONG NE TO 
E UPPER FLOW AROUND THE ANTICYCLONE OVER MEXICO KEEPS IMPINGING 
SW AND W TO THE S OF 15N. THE TROPICAL WAVE CURRENTLY ALONG 85W 
MAY HELP OFFSET CONVECTION ALONG THE ITCZ...AND OVER PORTIONS OF 
CENTRAL AMERICA WITHIN THE NEXT 24-48 HOURS. MODERATE TO STRONG 
SUBSIDENCE WITH ASSOCIATED DRY STABLE CONDITIONS PREVAIL 
GENERALLY BETWEEN 110W-120W WITH SOME OF THE UPPER LEVEL 
MOISTURE FROM THE FAR ERN WATERS SLOWLY SPREADING WWD TO JUST 
W OF 110W FROM 10N-19N.

W OF 120W...
A RATHER ELONGATED MID/UPPER LEVEL CYCLONIC CIRCULATION MOVING 
WWD IS W OF THE DISCUSSION AREA NEAR 26N146W WITH A TROUGH 
EXTENDING ENE TO 28N140W AND TO N OF THE AREA NEAR 33N135W.
A MID/UPPER LEVEL TROUGH MOVING E EXTENDS THROUGH 23N134W TO 
18N128W AND S TO 8N122W. MODEST RIDGING COVERS THE AREA TO THE 
SW OF THIS TROUGH WITH MODERATE TO STRONG UPPER WLY FLOW S OF 
15N W OF 130W. MODERATE SUBSIDENCE IS EVIDENT WITHIN THIS AREA 
AND IS KEEPING A LID ON CONVECTION FROM DEVELOPING ALONG AND
NEAR THE ITCZ. PATCHES OF SCATTERED TO BROKEN STRATOCUMULUS 
CLOUDS WITH POSSIBLE ISOLATED SHOWERS ARE EVIDENT ON SATELLITE 
IMAGERY FROM 20N TO 25N WITH A STRONG SURGE OF N-NE WINDS
PUSHING SSW INTO THE FAR NRN PORTION OF THE AREA N OF 28N
BETWEEN 121W-136W. SURFACE WINDS HERE ARE NE IN THE 20-25 KT 
RANGE WITH SEAS 8-12 FT.

AT THE SURFACE...A RIDGE EXTENDS FROM 32N135W TO 27N130W
TO 21N122W. HIGH PRES COVERS THE AREA N OF 20N W OF 124W.

$$
AGUIRRE