000
AXPZ20 KNHC 260905
TWDEP 

TROPICAL WEATHER DISCUSSION                                    
NWS NATIONAL HURRICANE CENTER MIAMI FL                      
1005 UTC TUE APR 26 2016

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 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH
0900 UTC.     
  
...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...

A TROUGH AXIS EXTENDS FROM 12N100W TO 07N110W TO 05N116W. THE
NORTHERN ITCZ AXIS EXTENDS FROM 05N116W TO 04N125W TO 04N140W.
THE SOUTHERN ITCZ AXIS EXTENDS FROM 03.4S89W TO 02S103W.
SCATTERED MODERATE CONVECTION IS WITHIN 360 NM NW OF THE
TROUGH...WITHIN 75 NM N OF THE NORTHERN ITCZ BETWEEN 132W AND
136W...AND WITHIN 75 NM N OF THE SOUTHERN ITCZ BETWEEN 94W AND
99W.

SCATTERED MODERATE CONVECTION IS WITHIN 120 NM SW OF CENTRAL
AMERICA BETWEEN 81W AND 85W. SIMILAR CONVECTION IS FROM 02N TO
07N BETWEEN 87W AND 92W.

...DISCUSSION...
  
N OF 15N E OF 120W... 

A 1029 MB SURFACE HIGH CENTER LOCATED NEAR 33N134W EXTENDS A
RIDGE TO THE SE THROUGH 22N120W TO 15N108W. A COLD FRONT IS
DIVING S THROUGH THE NORTHERN GULF OF CALIFORNIA. FRESH TO NEAR
GALE FORCE NORTHERLY WINDS ARE FOLLOWING THE FRONT WITH FRESH TO
NEAR GALE FORCE SW-W WINDS JUST TO THE S OF THE FRONT TO 29.5N
IN THE GULF. THE FRONT WILL QUICKLY WEAKEN AS IT DIPS S THROUGH
THE DAY WITH CONDITIONS RAPIDLY IMPROVING IN THE NEXT SEVERAL
HOURS. ANOTHER COLD FRONT IS FORECAST TO MOVE ACROSS THE SAME
AREA WED NIGHT WITH SIMILAR CONDITIONS EXPECTED WED NIGHT...WITH
THE FRONT STALLING OUT THROUGH THE END OF THE WEEK ALLOWING FOR
THE UNSETTLED CONDITIONS TO PERSIST THROUGH THE DAY THU. THE
FRONT FINALLY DISSIPATES OR SHIFTS EASTWARD THU NIGHT WITH MORE
TRANQUIL CONDITIONS EXPECTED FOR THE NORTHERN GULF THEREAFTER.

THE RIDGING COMBINED WITH ELONGATED TROUGHINESS ACROSS NW MEXICO
IS RESULTING IN A TIGHT PRESSURE GRADIENT W OF THE BAJA
CALIFORNIA PENINSULA...WITH FRESH TO STRONG NW-N FLOW SPILLING
SOUTHWARD TO 26N OFFSHORE OF THE PENINSULA. EVEN STRONGER WINDS
ARE TO THE N WHERE A GALE WARNING IS IN PLACE FOR SOUTHERN
CALIFORNIA. THESE WINDS ARE SUPPORTING FRESH 8-12 FT NW SWELL.
THE WINDS WILL DIMINISH SOMEWHAT THROUGH THE DAY TODAY WITH A
NEW SURGE ANTICIPATED WED NIGHT AS THE NEXT COLD FRONT MOVES IN
FROM THE NW-N. THIS NEXT ROUND OF WINDS WILL THEN DIMINISH THU
NIGHT THROUGH SAT. OTHERWISE...MAINLY MODERATE ONSHORE FLOW IS
EXPECTED INTO THE WEEKEND...OCCASIONALLY PULSING TO FRESH NEAR
AND OFFSHORE OF CABO CORRIENTES.

S OF 15N E OF 110W...

MAINLY LIGHT TO MODERATE ONSHORE FLOW WILL PREVAIL THROUGH THE
REMAINDER OF THE WEEK INTO THE WEEKEND...EXCEPT PULSING MODERATE
OFFSHORE NOCTURNAL DRAINAGE FLOW IN THE GULF OF PAPAGAYO.

CROSS-EQUATORIAL SW SWELLS WILL BREACH THE EQUATOR WED NIGHT
WITH COMBINED SEAS OF 6-9 FT. THE LEADING EDGE OF THIS SWELL
TRAIN WILL ARRIVE AT THE SW FACING SHORES OF THE GALAPAGOS THU
EVENING...THEN REACHING THE SHORES OF CENTRAL AMERICA FRI
EVENING.
  
ELSEWHERE FROM THE EQUATOR TO 32N E OF 140W...

MODERATE TO FRESH TRADES AND COMBINED SEAS OF 6-9 FT IN MIXED
SWELL DOMINATE THE REMAINDER OF THE AREA. LITTLE CHANGE IN THESE
CONDITIONS IS ANTICIPATED THROUGH THE NEXT SEVERAL DAYS.
    
$$
LEWITSKY