000
AXPZ20 KNHC 120910
TWDEP 

TROPICAL WEATHER DISCUSSION     
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC MON MAR 12 2007

TROPICAL WEATHER DISCUSSION FOR THE EASTERN PACIFIC OCEAN FROM 
THE EQUATOR TO 32N...EAST OF 140W. THE FOLLOWING INFORMATION IS 
BASED ON SATELLITE IMAGERY...WEATHER OBSERVATIONS...RADAR...AND 
METEOROLOGICAL ANALYSIS.

BASED ON 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0900 UTC.

...ITCZ...
ITCZ AXIS 2N79W 5N90W 3N100W 6N115W 4N140W. SCATTERED MODERATE 
ISOLATED STRONG WITHIN 90 NM S OF AXIS FROM 84W TO 90W. 
SCATTERED MODERATE WITHIN 30 NM EITHER SIDE OF AXIS FROM 90W TO 
100W.

...DISCUSSION...
UPPER LEVEL RIDGE WITH AXIS FROM 32N129W TO 18N132W. SLY WINDS 
AHEAD OF AN UPPER TROUGH JUST W OF THE DISCUSSION AREA IS 
BRINGING HIGH LEVEL MOISTURE N OF 23N W OF 137W...OTHERWISE
MODERATE TO STRONG SUBSIDENCE AND DRY AIR IS N OF 10N W OF 120W.

AN UPPER LEVEL TROUGH EXTENDS FROM A WELL DEFINED CYCLONIC 
CIRCULATION OVER SOUTHERN NEW MEXICO ACROSS NW MEXICO THROUGH 
THE S TIP OF THE BAJA PENINSULA TO 16N120W. STRONG SW 
WINDS...70-90 KT...ARE SE OF THE TROUGH AND ADVECTING TROPICAL 
MOISTURE INTO CENTRAL AND SOUTHERN MEXICO. AN UPPER RIDGE WITH 
AXIS FROM THE YUCATAN PENINSULA TO AN ANTICYCLONIC CIRCULATION 
CENTERED NEAR 2N103W...WITH MODERATE TO STRONG SUBSIDENCE ACROSS 
CENTRAL AMERICA AND THE PACIFIC N OF THE ITCZ E OF 95W.

BROAD SURFACE HIGH PRES RIDGE DOMINATES THE DISCUSSION AREA N 
10N W OF 113W.

$$
DGS