000
AXPZ20 KNHC 150913
TWDEP 

TROPICAL WEATHER DISCUSSION    
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC SUN FEB 15 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 6N77W 7N85W 2N95W 1N130W 2N140W. NO SIGNIFICANT 
CONVECTION.

...DISCUSSION...
MID/UPPER LEVEL TROUGH OVER THE NW PORTION OF THE DISCUSSION AREA
FROM 32N132W TO 21N140W. A 120-145 KT NLY JET W OF THE TROUGH 
AXIS FROM 32N138W TO 24N138W...WITH A 110-120 KT SW JET STREAM 
FROM 22N140W TO 26N132W WHERE WINDS INCREASE TO 145-165W KT 
CONTINUING NE TO TIJUANA MEXICO. BROKEN TO OVERCAST MIDDLE AND 
HIGH CLOUDS ARE WITHIN 180 NM SE OF THE JET AXIS. A BROAD 
MID/UPPER LEVEL RIDGE IS E OF THE TROUGH...WITH AXIS FROM AN 
ANTICYCLONIC CIRCULATION NEAR 10N91W N ACROSS MEXICO TO THE BIG 
BEND OF TEXAS. STRONG SUBSIDENCE WITH DRY STABLE AIR COVERS THE 
AREA FROM 5N-25N E OF 120N...WITH MOSTLY CLEAR SKIES ACROSS THIS 
REGION.

AN UPPER LEVEL TROUGH IN THE DEEP TROPICS WITH AXIS FROM 7N125W 
TO THE EQUATOR AT 115W.

COLD FRONT EXTENDS FROM 32N128W T0 27N140W. A FEW SHOWERS ARE 
ALONG THE FRONT. SURFACE 1022 MB HIGH PRES IS CENTERED NEAR 
25N124W WITH RIDGE FROM THE HIGH CENTER TO 18N113W. BROKEN TO 
OVERCAST STRATOCUMULUS CLOUDS BLANKET THE AREA N OF 15N W OF 
115W.

$$
DGS