000
AXPZ20 KNHC 160912
TWDEP 

TROPICAL WEATHER DISCUSSION    
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC MON FEB 16 2009

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...
AXIS ALONG 7N78W 7N85W 1N115W TO EQUATOR AT 140W. NO 
SIGNIFICANT CONVECTION.

...DISCUSSION...
MID/UPPER LEVEL TROUGH OVER THE NW PORTION OF THE DISCUSSION AREA
FROM 32N129W TO 19N139W. AN 85-100 KT SW JET STREAM FROM 19N135W 
TO 28N123W WHERE WINDS INCREASE TO 130-145W KT CONTINUING NE 
ACROSS NORTHERN BAJA CALIFORNIA. BROKEN TO OVERCAST MIDDLE AND 
HIGH CLOUDS ARE WITHIN 300 NM SE OF THE JET AXIS. A BROAD 
MID/UPPER LEVEL RIDGE IS E OF THE TROUGH...WITH AXIS FROM AN 
ANTICYCLONIC CIRCULATION NEAR 10N95W N ACROSS MEXICO TO SE 
TEXAS. STRONG SUBSIDENCE WITH DRY STABLE AIR COVERS THE AREA 
FROM 5N-25N E OF 115N...WITH MOSTLY CLEAR SKIES ACROSS THIS 
REGION EXCEPT FOR BROKEN LOW LEVEL CLOUDS S OF THE ITCZ.

AN UPPER LEVEL TROUGH IN THE DEEP TROPICS WITH AXIS FROM 10N120W 
TO THE EQUATOR AT 110W.

COLD FRONT EXTENDS FROM 32N121W T0 23N132W. A FEW SHOWERS ARE 
ALONG THE FRONT. SURFACE 1019 MB HIGH PRES IS CENTERED NEAR 
25N116W WITH RIDGE FROM THE HIGH CENTER TO 17N110W.

$$
DGS