000
AXPZ20 KNHC 290355
TWDEP 

TROPICAL WEATHER DISCUSSION      
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0605 UTC SUN MAR 29 2009

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 0300 UTC.

...ITCZ...
AXIS WAS ALONG 9N81W 2N101W 5N121W 6N140W. SCATTERED MODERATE 
CONVECTION WAS WITHIN 240 NM OF 03.593W. SCATTERED MODERATE 
CONVECTION WITHIN 180 NM N OF AXIS W OF 130W.

...DISCUSSION...
MIDDLE TO UPPER LEVEL CYCLONIC CIRCULATION IS OVER THE NW 
PORTION OF THE DISCUSSION AREA CENTERED NEAR 26N139W...WITH
CYCLONIC FLOW N OF 22N W OF 133W. A FEW SHOWERS ARE N OF THE 
CIRCULATION AND SLOWLY DISSIPATING. DOWNSTREAM UPPER LEVEL RIDGE 
EXTENDS FROM SOUTHERN ARIZONA ACROSS THE GULF OF CALIFORNIA.
A DEEP LAYER TROUGH EXTENDS FROM THE WESTERN GULF OF MEXICO
THROUGH SOUTHERN MEXICO TO THE GULF OF TEHUANTEPEC.

IN THE DEEP TROPICS A COUPLE OF ANTICYCLONIC CIRCULATIONS 
DOMINATE MUCH OF THE ARE...ONE CENTERED NEAR 2N106W AND ANOTHER 
NEAR 8N125W. A NARROW TROUGH SEPARATES THE TWO ANTICYCLONES. 
MODERATE TO STRONG SUBSIDENCE WITH DRY STABLE AIR IS S OF 15N E 
OF 125W.

SURFACE RIDGE WITH AXIS FROM 32N136W TO 19N112W. BROKEN TO 
OVERCAST STRATOCUMULUS CLOUDS ARE N OF 17N W OF 120W.

$$
DGS