000
AXPZ20 KNHC 270905
TWDEP 

TROPICAL WEATHER DISCUSSION                                   
NWS NATIONAL HURRICANE CENTER MIAMI FL                      
1005 UTC WED APR 27 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 11N87W TO 10N100W TO 07N110W. THE
ITCZ AXIS EXTENDS FROM 07N110W TO 04N125W TO 04N140W. SCATTERED
MODERATE AND ISOLATED STRONG CONVECTION IS FROM 04N TO 13N
BETWEEN 84W AND 89W...AND ALSO FROM 03N TO 10N BETWEEN 91W AND
98W. SCATTERED MODERATE CONVECTION IS FROM 04N TO 08N BETWEEN
81W AND 84W...FROM 06N TO 11N BETWEEN 100W AND 104W...FROM 10N
TO 12N BETWEEN 111W AND 114W...FROM 04N TO 07N BETWEEN 124W AND
128W...AND ALSO FROM 02N TO 06N BETWEEN 132W AND 137W.

...DISCUSSION...

N OF 15N E OF 120W...

A RIDGE AXIS EXTENDS INTO THE AREA STEMMING FROM 1028 MB HIGH
PRESSURE NEAR 31N140W THROUGH 26N125W TO 16N108W. BROAD AND
ELONGATED SURFACE TROUGHING IS LOCATED ACROSS NW MEXICO. THE
PRESSURE GRADIENT BETWEEN THE RIDGING AND TROUGHING IS
SUPPORTING MODERATE TO FRESH NW-N FLOW ACROSS THE REGION WITH
THE STRONGEST WINDS FOUND JUST OFFSHORE OF THE BAJA CALIFORNIA
PENINSULA. A COLD FRONT WILL MOVE FROM SOUTHERN CALIFORNIA TO
ACROSS NW MEXICO TONIGHT INTO EARLY THU...WITH WINDS INCREASING
TO FRESH TO STRONG N OF 29N W OF BAJA CALIFORNIA IN ITS WAKE.
FRESH TO NEAR GALE FORCE WESTERLY WINDS AHEAD OF THE FRONT WILL
BE FUNNELED THROUGH NORTHERN BAJA PASSES INTO THE NORTHERN GULF
OF CALIFORNIA FROM 29.5N TO 30.5N BY THIS EVENING...DIMINISHING
BY LATE THU NIGHT AS THE FRONT DISSIPATES. NW SWELLS OF 6-10
FT...HIGHEST OFFSHORE OF THE NORTHERN BAJA CALIFORNIA
PENINSULA...WILL PERSIST THROUGH THE NEXT SEVERAL DAYS.

S OF 15N E OF 110W...

LIGHT TO MODERATE SW-W FLOW DOMINATES THE AREA. LITTLE CHANGE IN
WIND CONDITIONS IS EXPECTED THROUGH THE REMAINDER OF THE WEEK
AND THE UPCOMING WEEKEND. CURRENTLY COMBINED SEAS ARE 4-7 FT IN
MIXED SW AND NW SWELL. A NEW SET OF SW CROSS-EQUATORIAL SWELL
WILL BREACH THE EQUATOR AT 110W IN ABOUT 24 HOURS...REACHING THE
SW FACING SHORES OF THE GALAPAGOS BY THU EVENING...THEN REACHING
THE PACIFIC SHORES OF CENTRAL AMERICA FRI AFTERNOON AND EVENING.
COMBINED SEAS OF 6-9 FT ARE EXPECTED WITH THIS SWELL TRAIN...
SUBSIDING FRI NIGHT THROUGH SUN.

ELSEWHERE FROM THE EQUATOR TO 32N E OF 140W...

THE ABOVE DISCUSSED RIDGING IS SUPPORTING MODERATE TO FRESH
TRADES N OF THE ITCZ. COMBINED SEAS OF 6-9 FT COVER THIS
REMAINDER OF THE DISCUSSION AREA...EXCEPT IN THE NW CORNER
CLOSEST TO THE HIGH CENTER WHERE SEAS ARE ONLY 4-6 FT UNDER
LIGHT WINDS. A NEW SET OF NW SWELL WILL MOVE INTO THE NW PORTION
BY THU MORNING AS THE HIGH TEMPORARILY BREAKS DOWN DUE TO A
DECAYING COLD FRONT...WHICH WILL BE DROPPING S THROUGH THE
NORTHERN WATERS. HIGH PRESSURE WILL THEN BUILD BACK IN FROM THE
NW IN THE WAKE OF THIS COLD FRONT WITH SUBSIDING SEAS.

$$
LEWITSKY