000
AXPZ20 KNHC 250948
TWDEP 

TROPICAL WEATHER DISCUSSION                                     
NWS NATIONAL HURRICANE CENTER MIAMI FL                         
1005 UTC WED FEB 25 2015

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. 
                  
...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
            
ITCZ FROM 5N90W TO 4N120W TO 00N132W. SCATTERED MODERATE 
ISOLATED STRONG CONVECTRION FROM 6N-9N BETWEEN 114W-121W. 
 
...DISCUSSION... 

AN UPPER LEVEL TROUGH IS ACROSS THE W PORTION OF THE DISCUSSION 
AREA. THE TROUGH EXTENDS FROM A CYCLONIC CIRCULATION JUST W OF 
THE AREA15N141W TO 5N135W. UPPER LEVEL DIFFLUENCE E OF THE 
TROUGH IS ENHANCING MODERATE CONVECTION FROM 9N-15N W 136W. A 
BROAD UPPER LEVEL RIDGE E OF THE TROUGH EXTENDS FROM 32N131W TO 
11N112W. A BROAD TROUGH IS S OF THE RIDGE. AN UPPER LEVEL 
EXTENDS FROM RIDGE EXTENDS FROM NW COAST OF COLOMBIA ACROSS THE 
COAST OF CENTRAL AMERICA INTO CENTRAL MEXICO. STRONG SUBSIDENCE 
WITH DRY AND STABLE AIR AT THE MIDDLE AND UPPER LEVELS HAS 
SUPRESSED CONVECTION E OF 110W.

THE PRES GRADIENT BETWEEN A RIDGE TO THE N AND A TROUGH TO THE S 
HAS TIGHTENED THE PRES GRADIENT AND ELY WINDS HAVE INCREASED 20 
TO 25 KT FROM 19N-27N W OF 130W. THE TROUGH WILL WEAKEN AND MOVE 
E AND THE GRADIENT WILL WEAKEN WITH DECREASING WINDS. HOWEVER 
LARGE SWELLS WILL REMAIN ACROSS THE NW PORTION OF THE AREA.

$$ 
DGS