000
AXPZ20 KNHC 172120
TWDEP 

TROPICAL WEATHER DISCUSSION                                    
NWS NATIONAL HURRICANE CENTER MIAMI FL                         
2205 UTC FRI APR 17 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 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
2100 UTC. 
 
...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...              

ITCZ EXTENDS FROM 02N106W TO 02N128W TO 06N138W. NO SIGNIFICANT 
CONVECTION.

A TROUGH EXTENDS FROM 08N90W TO 03N104W. SCATTERED MODERATE 
CONVECTION IS WITHIN 60 NM OF TROUGH BETWEEN 95W AND 98W.

AN AREA OF SCATTERED MODERATE TO ISOLATED STRONG CONVECTION IS 
NOTED FROM 10N TO 13N W OF 132W.

...DISCUSSION... 

A MID TO UPPER LEVEL TROUGH IS MOVING EASTWARD ACROSS WESTERN 
MEXICO. A LARGE MID LEVEL ANTICYCLONE IS CENTERED NEAR 09N121W. 
BROAD UPPER LEVEL DIFFLUENCE IS ENHANCING CONVECTIVE ACTIVITY N 
OF ITCZ W OF 130W.

A WEAK PRESSURE PATTERN CONTINUES OVER THE TROPICAL WATERS E OF 
120W. SCATTEROMETER DATA SHOWS GENTLE TO MODERATE WINDS ACROSS 
MOST OF THE REGION W OF 110W. AN ALTIMETER PASS AT 1300 UTC 
SHOWED 10-11 FT SEAS IN NW PART OF THE DISCUSSION AREA...ABOUT 1 
FT HIGHER THAN WWW GUIDANCE. FRESH TRADE WINDS WILL PERSIST FROM 
10N TO 15N W OF 130W INTO EARLY SUNDAY...AND ALLOW AN AREA OF 8-
9 FT SEAS TO REMAIN BETWEEN 09-16N W OF 120W THROUGH THE WEEKEND.

$$
MUNDELL