000
AXPZ20 KNHC 251528
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
1605 UTC FRI APR 25 2014

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...

THE MONSOON TROUGH EXTENDS FROM 06N77W TO 06N92W. THE ITCZ AXIS 
EXTENDS FROM 06N92W TO 04N114W TO 01N127W TO BEYOND 04N140W. 
SCATTERED MODERATE AND ISOLATED STRONG CONVECTION IS FROM 05N TO 
08N E OF 80W...WITHIN 120 NM S OF THE MONSOON TROUGH BETWEEN 81W 
AND 84W...AND ALSO WITHIN 120 NM S OF THE MONSOON TROUGH BETWEEN 
89W AND 92W.

...DISCUSSION...     

A SURFACE RIDGE EXTENDS ACROSS THE WATERS N OF 20N W OF 105W. 
THE PRESSURE GRADIENT BETWEEN THE RIDGE AND LOWER PRESSURE 
ASSOCIATED WITH THE ITCZ TO THE S IS SUPPORTING FRESH TO STRONG 
TRADES FROM 10N TO 18N W OF 130W WITH 8-9 FT SEAS. A LARGER AREA 
OF MODERATE TO FRESH TRADES WITH 8-9 FT SEAS SURROUNDS THE 
STRONGER TRADES FROM 08N TO 20N W OF 123W IN MIXED NE...SW... 
AND NW SWELL. EXPECT LITTLE CHANGE IN THESE CONDITIONS AND 
COVERAGE THROUGH THE NEXT 48 HOURS.

FRESH TO STRONG WINDS ARE N OF THE AREA ALONG THE CALIFORNIA 
COAST. THESE WINDS ARE CONTINUING TO SUPPORT NW SEAS AT 8-9 FT 
WHICH ARE FEEDING INTO THE WATERS N OF 28N BETWEEN 118W AND 
122W. THESE SEAS WILL SUBSIDE TO LESS THAN 8 FT S OF 30N THIS 
AFTERNOON AND EVENING.

THE TAIL END OF A COLD FRONT WILL ATTEMPT TO BREACH 30N TODAY 
GRADUALLY DISSIPATING AS IT SKIRTS ACROSS THE FAR NORTHERN 
WATERS TOWARD NW MEXICO THROUGH SAT. A NEW SET OF NW SWELL AT                                 
8-10 FT WILL ARRIVE BEHIND THE FRONT COVERING THE WATERS N OF 21N 
BETWEEN 111W AND 130W BY SUN MORNING.

CROSS-EQUATORIAL SOUTHERLY SWELL AT 8-10 FT COVERS THE WATERS   
S OF A LINE FROM 20N123W TO 10N95W TO 01S91W TO 02N84W TO 
03.4S80W. THE LEADING EDGE OF THE SWELL HAS NOW REACHED SW 
MEXICO AND SOUTHERN BAJA CALIFORNIA AND WILL REACH NORTHERN  
BAJA CALIFORNIA TONIGHT...AND SOUTHERN CALIFORNIA BY LATE 
TONIGHT. THIS SWELL WILL GRADUALLY DECAY THIS WEEKEND WITH SEAS 
OF 8-9 FT BECOMING CONFINED TO A SMALL AREA JUST S OF A LINE 
FROM 03.4S120W TO 00N100W TO 03.4S81W BY 48 HOURS.

OTHERWISE...EXPECT FAIRLY TRANQUIL WIND CONDITIONS ACROSS THE 
GULFS OF TEHUANTEPEC...PAPAGAYO...AND PANAMA THROUGH THE NEXT 
FEW DAYS...AS LIGHT TO MODERATE WINDS PREVAIL E OF 100W.

$$ 
LEWITSKY