000
AXPZ20 KNHC 051535
TWDEP 

TROPICAL WEATHER DISCUSSION    
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1605 UTC THU FEB 05 2009

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.

...ITCZ...
AXIS ALONG 05N78W TO 02N105W TO 05N140W. NO SIGNIFICANT 
CONVECTION.


...DISCUSSION...
MID/UPPER LEVEL TROUGH WITH AXIS FROM 32N125W TO 20N130W. 
SCATTERED SHOWERS NEAR THE TROUGH N OF 31N BETWEEN 124W AND 127W.
A 95-105 KT JET STREAM EXTENDS FROM 28N125W NE TO SOUTHERN 
CALIFORNIA. BROKEN CIRRUS CLOUDS ARE ADVECTING NE ALONG THE SW 
FLOW AHEAD OF THE TROUGH TOWARDS BAJA CALIFORNIA. MID/UPPER 
LEVEL RIDGE EXTENDS FROM AN ANTICYCLONIC CIRCULATION OVER 
VENEZUELA NW ACROSS CENTRAL AMERICA THROUGH MEXICO TOWARD SE 
ARIZONA. AN UPPER LEVEL TROUGH IN THE DEEP TROPICS WITH AXIS 
FROM 15N115W TO THE EQUATOR AT 100W. STRONG SUBSIDENCE WITH DRY 
STABLE AIR AT THE MIDDLE AND UPPER LEVELS OF THE ATMOSPHERE IS 
SUPPRESSING CONVECTIVE ACTIVITY ALONG THE ITCZ EXCEPT FOR A FEW 
ISOLATED SHOWERS E OF 89W. 

COLD FRONT EXTENDS FROM 32N121W TO 25N129W. NO SIGNIFICANT 
WEATHER ASSOCIATED WITH THE FRONT. A 1020 MB SURFACE HIGH PRES 
IS CENTERED NEAR 24N117W. STRONG HIGH PRES OVER THE NE GULF OF 
MEXICO WITH TIGHT PRES GRADIENT ACROSS SOUTHERN MEXICO IS 
PRODUCING STORM FORCE WINDS IN THE GULF OF TEHUANTEPEC. THE 
TIGHT PRES GRADIENT HAS MOVED FAR ENOUGH S TO CAUSE GALE FORCE 
WINDS INTO THE GULF OF PAPAGAYO.

$$
DGS