000
AXPZ20 KNHC 120906
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC WED MAR 12 2008

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

BASED ON 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0900 UTC.

...ITCZ...
ITCZ AXIS ALONG 7N82W 1N105W 8N126W 140W. SCATTERED MODERATE 
ISOLATED STRONG WITHIN 60 NM EITHER SIDE OF AXIS FROM 138W TO 
140W.

...DISCUSSION...
MID/UPPER LEVEL TROUGH EXTENDS FROM THE ARIZONA/CALIFORNIA
BORDER ACROSS THE NORTHERN BAJA PENINSULA TO 15N138W. A 75-85
KT JET IS SE OF THE TROUGH FROM 19N123W INTO NORTHERN MEXICO
TO THE SOUTHERN TIP OF TEXAS. SOME HIGH LEVEL MOISTURE IS BEING 
ADVECTED NE ALONG THE JET. AN UPPER LEVEL RIDGE IS BUILDING 
OVER THE NW PORTION OF THE AREA NW OF THE TROUGH...WITH MOSTLY 
CLEAR SKIES IN THE AREA. A BROAD RIDGE IS ACROSS NORTHERN MEXICO 
WITH MOSTLY ZONAL FLOW ALOFT. AN E-W RIDGE EXTENDS FROM A LARGE
ANTICYCLONIC CIRCULATION OVER THE CARIBBEAN ACROSS NICARAGUA
TO 7N120W. STRONG SUBSIDENCE WITHIN THE RIDGE IS SUPPRESSING 
CONVECTION N OF 5N E OF 95W 

WEAK SURFACE RIDGE IS N OF 12N W OF 102W...WITH 1027 MN SURFACE 
HIGH PRES CENTER NEAR 32N135W. A SURFACE TROUGH IS ANALYZED 
ALONG THE ITCZ FROM 13N123W TO 5N126W. SCATTERED SHOWERS 
ASSOCIATED WITH THE TROUGH FROM 5N-10N BETWEEN 122W-127W.

$$
DGS