000
AXPZ20 KNHC 200255
TWDEP 

TROPICAL WEATHER DISCUSSION                                    
NWS NATIONAL HURRICANE CENTER MIAMI FL                         
0405 UTC MON APR 20 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 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0200 UTC. 
 
...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...              

ITCZ EXTENDS FROM 05N107W TO 03N122W TO 05N132W TO 05N140W. NO 
SIGNIFICANT CONVECTION.

SCATTERED MODERATE ISOLATED STRONG CONVECTION FROM 00N TO 03N 
BETWEEN 88W AND 94W.

...DISCUSSION... 

A MID-UPPER LEVEL TROUGH EXTENDS FROM AN UPPER LOW CENTERED W OF 
CALIFORNIA AT 35N128W TO 29N125W TO 24N130W TO 16N140W. A BROAD 
UPPER LEVEL ANTICYCLONE IS CENTERED SW OF MEXICO NEAR 12N107W. A 
LARGE PLUME OF DEEP TROPICAL MOISTURE IS EVIDENT ON WATER VAPOR 
IMAGERY BETWEEN THESE TWO MAJOR FEATURES EXTENDING FROM 13N131W 
THROUGH 22N120W ACROSS SOUTHERN BAJA CALIFORNIA INTO NORTHERN 
MEXICO. MOST OF THIS MOISTURE IS IN THE FORM OF MID-LEVEL CLOUDS 
WITH ONLY MINOR CONVECTIVE ACTIVITY NEAR THE OCEAN SURFACE. 

SCATTEROMETER DATA SHOWS GENTLE TO MODERATE WINDS ACROSS MOST OF 
THE REGION. MODEL GUIDANCE INDICATES LITTLE CHANGE IS EXPECTED 
THROUGH MID-WEEK...AS NEARLY STATIONARY HIGH PRESSURE REMAINS IN 
PLACE N OF 20N AND A WEAK CONVERGENCE ZONE CONTINUES S OF 08N. 
LINGERING NW SWELL WITH SEAS TO 8-9 FT W OF LINE FROM 17N140W TO 
11N130W TO 07N140W THROUGH MON AFTERNOON. SURGE OF N SWELL WILL 
SWEEP S OF 30N MON TO COVER AN AREA N OF 25N W OF 125W BY TUE.

$$
MUNDELL