000
AXPZ20 KNHC 022137
TWDEP 

TROPICAL WEATHER DISCUSSION    
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
2205 UTC MON FEB 02 2009

TROPICAL WEATHER DISCUSSION FOR THE EASTERN PACIFIC OCEAN FROM 
THE EQUATOR TO 32N...EAST OF 140W. 

BASED ON 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
2100 UTC.

...ITCZ...
AXIS ALONG 3N77W 4N90W 2N105W 7N130W 6N140W. SCATTERED MODERATE 
WITHIN 120 NM N AND 60 NM S OF AXIS E OF 80W.

...DISCUSSION...
MID/UPPER LEVEL RIDGE WITH AXIS FROM 32N132W TO 25N130W. 
MODERATE TO STRONG SUBSIDENCE N OF 20N FROM 125W-135N. SOME HIGH 
LEVEL MOISTURE APPROACHING THE FAR NW PORTION OF THE DISCUSSION 
AREA. A WEAK MID TO UPPER LEVEL TROUGH EXTENDS FROM  32N126W TO 
CYCLONIC CIRCULATION NEAR 30N124W TO 26N118W. AN 85-95 KT JET 
STREAM EXTENDS FROM 25N120W TO THE CENTRAL BAJA CALIFORNIA WHERE 
WINDS INCREASE 110-125W KT OVER NORTHERN MEXICO. BROKEN CIRRUS 
CLOUDS ARE WITHIN 360 NM S OF THE JET. STRONG SUBSIDENCE WITH 
DRY AIR AT THE MIDDLE AND UPPER LEVELS OF THE ATMOSPHERE COVERS 
THE DISCUSSION AREA S OF 20N E OF 120W. UPPER LEVEL TROUGH IN 
THE DEEP TROPICS WITH AXIS FROM 15N130W TO THE EQUATOR AT 118W.

SURFACE TROUGH IS ANALYZED ALONG THE ITCZ FROM 8N97W TO 1N100W.
OVERCAST LOW TOP CLOUDS WITH A FEW SHOWERS ASSOCIATED WITH THE 
TROUGH ARE FROM 2N-6N BETWEEN 97W AND 103W. SURFACE RIDGE 
EXTENDS FROM 32N131W TO 17N112W. BROKEN TO OVERCAST 
STRATOCUMULUS CLOUDS BLANKET THE AREA WITHIN THE RIDGE N OF 18N 
W OF 125W. COLD FRONT CURRENTLY MOVING ACROSS THE GULF OF MEXICO 
WILL CONTINUE TO MOVE S AND THE PRES GRADIENT WILL INCREASE OVER 
SOUTHERN MEXICO AND GALE FORCE WINDS ARE EXPECTED IN THE GULF OF 
TEHUANTEPEC WITHIN 24 HOURS.
       
$$
DGS