000
AXPZ20 KNHC 111515
TWDEP 

TROPICAL WEATHER DISCUSSION                                    
NWS NATIONAL HURRICANE CENTER MIAMI FL                          
1605 UTC THU APR 11 2013

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.

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...              
A WEAK MONSOON TROUGH EXTENDS FROM 09N82W TO 07N96W. SCATTERED 
MODERATE CONVECTION FOUND FROM 04N TO 07N BETWEEN 81W AND 91W...
AND FROM 08N TO 10N BETWEEN 114W AND 120W.  

...DISCUSSION...                                             A 
NEARLY STATIONARY 1032 MB HIGH CENTERED N-NW OF THE AREA NEAR 
35N139W EXTENDS A BROAD RIDGE ACROSS THE SUBTROPICS W OF 112W. 
ASCAT PASS FROM 0700 UTC SHOWED A SHRINKING AREA OF FRESH E-NE 
TRADES S OF THE SUBTROPICAL HIGH FROM 10N TO 18N W OF AROUND 
134W. MODEL GUIDANCE INDICATES THE NEAR EQUATORIAL CONVERGENCE 
ZONE WILL WEAKEN SIGNIFICANTLY IN THE NORTHERN HEMISPHERE OVER 
THE NEXT FEW DAYS...WITH THE ITCZ AXIS SHIFTING SLIGHTLY S OF 
THE EQUATOR. THIS WILL CONTINUE TO WEAKEN TRADE WINDS ACROSS THE 
DISCUSSION AREA. 

STRONG TO NEAR-GALE N-NW WINDS ARE EXPECTED ALONG THE COAST OF S 
CALIFORNIA TONIGHT THROUGH SAT...WHICH WILL INCREASE SEAS IN NE 
PORTION NEAR BAJA PENINSULA AS 8-10 FT N SWELL SWEEPS S OF 30N. 
ALSO...LARGE LONG PERIOD S SWELL CROSSING THE EQUATOR NEAR THE 
GALAPAGOS ISLANDS WILL BUILD SEAS TO 9 FT BETWEEN 92W AND 110W 
BY SAT MORNING.

$$
MUNDELL