000
AXPZ20 KNHC 102210
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
2205 UTC TUE JUN 10 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 
21455 UTC.

...TROPICAL WAVES...

TROPICAL WAVE IS ALONG 82W N OF 5N MOVING W ABOUT 13 KT. 
SCATTERED MODERATE CONVECTION IS WITHIN 30 NM OF 5N83W. WIDELY 
SCATTERED MODERATE CONVECTION IS JUST INLAND THE NORTHERN COAST 
OF PANAMA. 

...ITCZ...

INTERTROPICAL CONVERGENCE ZONE (ITCZ) IS CENTERED ALONG 7N78W
5N92W 6N100W 5N110W 8N120W 8N130W 6N140W. SCATTERED 
MODERATE/ISOLATED STRONG CONVECTION IS WITHIN 120 NM N OF THE 
AXIS BETWEEN 87W-92W. SCATTERED MODERATE CONVECTION IS WITHIN N 
OF THE AXIS W OF 139W.

...DISCUSSION...

E OF 120W...
A NEARLY STATIONARY MID/UPPER LEVEL ANTICYCLONIC CIRCULATION IS 
NEAR 26N116W WITH A RIDGE EXTENDING WELL N W OF THE AREA THROUGH
33N120W...AND ANOTHER RIDGE S TO 18N113W. ANOTHER MID/UPPER 
LEVEL ANTICYCLONIC IS JUST INLAND THE COAST OF MEXICO NEAR
MANZANILLO...AND CONTINUES TO PRODUCE A FAVORABLE UPPER LEVEL
ENVIRONMENT TO SUSTAIN SPURTS OF CONVECTIVE CLUSTERS ALONG AND
WITHIN 180 NM SSW OF THE MEXICAN COAST FROM THE GULF OF 
TEHUANTEPEC TO NEAR ACAPULCO...ALTHOUGH COVERAGE NOT AS NUMEROUS 
AS 24-48 HOURS AGO. 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 82W MAY HELP OFFSET CONVECTION ALONG THE 
ITCZ...AND OVER PORTIONS OF CENTRAL AMERICA WITHIN THE NEXT 
24-48 HOURS. MODERATE TO STRONG SUBSIDENCE WITH 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 25N146W WITH A TROUGH 
EXTENDING ENE TO 27N140W AND TO 28N134W. A MID/UPPER LEVEL 
TROUGH MOVING E EXTENDS THROUGH 23N134W TO 20N130W TO 
18N128W...THEN S TO 7N123W. 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 AS WELL KEEPING CONVECTION VERY MINIMAL. PATCHES OF BROKEN 
TO OVERCAST STRATOCUMULUS CLOUDS WITH POSSIBLE ISOLATED SHOWERS 
ARE EVIDENT ON SATELLITE IMAGERY FROM 19N TO 29N WITH A STRONG 
SURGE OF DRY DEEP LAYER AIR NOTED N OF 29N BETWEEN 120W-130W. 
SURFACE WINDS HERE ARE NE IN THE 20-25 KT RANGE WITH SEAS 8-12 
FT.

ELSEWHERE AT THE SURFACE...A RIDGE EXTENDS FROM 32N137W TO 
25N131W TO 18N121W. HIGH PRES COVERS THE AREA N OF 19N W OF 122W.

$$
AGUIRRE