000
AXPZ20 KNHC 051724 CCA
TWDEP 

TROPICAL WEATHER DISCUSSION                                     
NWS NATIONAL HURRICANE CENTER MIAMI FL                         
1605 UTC SUN APR 05 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 1200 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY  
THROUGH 1500 UTC. 
 
...SPECIAL FEATURES... 

GULF OF TEHUANTEPEC GALE WARNING...THE GALE FORCE WINDS ARE FROM 
N OF 15N BETWEEN 94.5W AND 95.5W WITH SEAS 10-12 FT. THE WINDS 
WILL DECREASE TO BELOW GALE LATER THIS AFTERNOON. WINDS WILL 
CONTINUE 20-25 KT THROUGH THE AREA THROUGH TONIGHT. WINDS 
FURTHER DECREASE TO 20 KT OF LESS WITH SEAS LESS THAN 8 FT MON 
MORNING.
 
...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
            
ITCZ FROM 4N90W TO 1N99W THEN CONTINUES FROM 3N113W TO 4N140W. 
SECOND ITCZ FROM 2S100W TO 3S110W TO 1S116W. SCATTERED TO 
NUMEROUS MODERATE TO STRONG CONVECTION FROM 6N-10N BETWEEN 111W 
AND 119W AND FROM 5N-8N BETWEEN 123W-128W. SCATTERED MODERATE 
ISOLATED STRONG CONVECTION FROM 5N-7N BETWEEN 132W-139W. 


...DISCUSSION... 
    
A BROAD UPPER LEVEL TROUGH IS N OF 22W W OF 118W. COMPARATIVELY 
DRIER AIR IN SUBSIDENCE IS APPARENT IN WATER VAPOR IMAGERY TO 
THE N OF 21N W OF 125W.
 
BROAD UPPER LEVEL ANTICYCLONIC WIND FLOW COVERS THE EASTERN 
PORTION OF THE AREA E OF THE TROUGH.

A SURFACE RIDGE AXIS EXTENDS FROM 32N140W TO 20N112W. TRADE 
WINDS ARE 20 KNOTS OR LESS FROM 8N-15N W OF 130W. HOWEVER SEAS 
ARE 8-9 FT IN NW SWELL IN THIS AREA. 
  
THE GULF OF PAPAGAYO...EXPECT NOCTURNAL DRAINAGE FLOW WITH ENE 
WINDS 20-25 KT WINDS THROUGH TUE. SEAS ARE 8 FT...WILL BUILD TO 
9 FT MON.
 
THE GULF OF PANAMA...MODERATE TO FRESH NORTHERLY WINDS ARE 
EXPECTED ACROSS THE GULF OF PANAMA AND DOWNWIND TO 6N DURING THE 
NEXT FEW DAYS. THE SEA HEIGHTS WILL RANGE FROM 5 TO 7 FEET. 

$$ 
DGS/SS