000
AXPZ20 KNHC 061551
TWDEP 

TROPICAL WEATHER DISCUSSION    
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1605 UTC FRI FEB 06 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 4N78W 2N95W 5N130W 4N140W. NO SIGNIFICANT CONVECTION.

...DISCUSSION...
MID/UPPER LEVEL TROUGH WITH AXIS FROM 32N127W TO 20N128W. A 
95-100 KT JET STREAM EXTENDS FROM 32N135W TO 30N125W THEN NE TO 
SOUTHERN CALIFORNIA. SCATTERED TO BROKEN CIRRUS CLOUDS ARE 
ADVECTING NE ALONG THE SW FLOW AHEAD OF THE TROUGH TOWARDS BAJA 
CALIFORNIA. MID/UPPER LEVEL RIDGE EXTENDS FROM THE BIG BEND OF 
TEXAS ACROSS NORTHERN MEXICO TO AN ANTICYCLONIC CIRCULATION NEAR 
18N104W. UPPER LEVEL TROUGH IN THE DEEP TROPICS WITH AXIS FROM 
14N112W TO THE EQUATOR AT 85W. STRONG SUBSIDENCE WITH DRY STABLE 
AIR AT THE MIDDLE AND UPPER LEVELS OF THE ATMOSPHERE S OF 15N E 
OF 125W...EXCEPT FROM A FEW ISOLATED SHOWERS ALONG THE ITCZ E OF 
110W. SKIES ARE MOSTLY CLEAR FROM 10-18N WITH BROKEN/OVERCAST 
STRATOCUMULUS CLOUDS S OF 10N 

COLD FRONT EXTENDS FROM 32N125W 29N 130W TO 28N136W. NO 
SIGNIFICANT WEATHER ASSOCIATED WITH THE FRONT. STRONG HIGH PRES 
OVER NORTHERN MEXICO WITH TIGHT PRES GRADIENT ACROSS SOUTHERN 
MEXICO IS PRODUCING GALE 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