000
AXPZ20 KNHC 141534
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1605 UTC SUN SEP 14 2008

TROPICAL WEATHER DISCUSSION FOR THE EASTERN PACIFIC OCEAN FROM 
THE EQUATOR TO 32N...EAST OF 140W. 

BASED ON 1200 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
1500 UTC.

...TROPICAL WAVES...

A TROPICAL WAVE ALONG 99W FROM 05N TO 15N IS MOVING W ABOUT 10 
KT. THE WAVE IS WEAK AND DISORGANIZED WITH MOST OF THE 
CONVECTION TIED TO THE ITCZ AND LOCATED E OF THE WAVE AXIS.

...ITCZ...

ITCZ AXIS IS CENTERED ALONG 06N77W TO 08N110W TO 08N130W TO 
11N140W. SCATTERED MODERATE ISOLATED STRONG CONVECTION IS 
LOCATED WITHIN 120 NM OF 06.5N79W. SCATTERED MODERATE CONVECTION 
IS LOCATED WITHIN 60 NM OF 09.5N94W. SCATTERED MODERATE 
CONVECTION IS LOCATED WITHIN 60 NM EITHER SIDE OF AXIS FROM 125W 
TO 136W.

...DISCUSSION...

W OF 110W...
STRONG SUBSIDENCE AS INDICATED BY WATER VAPOR IMAGERY COVERS A 
LARGE PART OF THE AREA W OF 110W N OF A LINE FROM SOUTHERN BAJA 
CALIFORNIA TO 15N125W TO 15N140W. BROAD ANTICYCLONIC FLOW ALOFT 
IS LOCATED APPROXIMATELY FROM 16N TO 27N W OF 125W. A LARGE 
MIDDLE/UPPER LEVEL CYCLONIC CIRCULATION IS LOCATED OFF THE W 
COAST OF THE UNITED STATES NEAR 36N130W WITH A TROUGH AXIS 
EXTENDING S FROM THE CIRCULATION CENTER TO 27N130W. CYCLONIC 
FLOW IS LOCATED N OF 28N W OF 120W. AT THE SURFACE SOUTHERLY 
SWELLS TO 8 FT ARE LOCATED S OF 09N BETWEEN 110W AND 125W.

E OF 110W...
AN ELONGATED MIDDLE/UPPER LEVEL CYCLONIC CIRCULATION IS LOCATED 
OVER THE S CENTRAL GULF OF MEXICO. A TROUGH AXIS EXTENDS THROUGH 
THE GULF OF TEHUANTEPEC TO NEAR 10N100W. OVER THE DEEP TROPICS 
NE WINDS ALOFT ARE LOCATED S OF 10N BETWEEN 90W AND 110W. 
SATELLITE CLOUD DRIFT WINDS MEASURE UP TO 35 KT IN THIS AREA.
SCATTERED MODERATE ISOLATED STRONG CONVECTION IS LOCATED WITHIN 
120 NM OF 16N103W.

$$
CAB