000
AXPZ20 KNHC 280227
TWDEP 

TROPICAL WEATHER DISCUSSION                                  
NWS NATIONAL HURRICANE CENTER MIAMI FL                      
0405 UTC THU APR 28 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 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH
0230 UTC.
  
...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...        

THE ITCZ EXTENDS FROM 08N116W TO 04N140W. SCATTERED MODERATE
ISOLATED STRONG CONVECTION WAS NOTED WITHIN 180 NM N OF THE ITCZ
BETWEEN W OF 121W. 

...DISCUSSION...

N OF 15N E OF 120W...

HIGH PRESSURE OF 1028 MB EXTENDS A RIDGE SE INTO THE AREA
THROUGH 12N105W. A SURFACE TROUGH PREVAILS OVER MEXICO. THE
PRESSURE GRADIENT BETWEEN THE RIDGE AND TROUGHING IS SUPPORTING
MODERATE TO FRESH NW TO N FLOW ACROSS THE REGION WITH THE
STRONGEST WINDS FOUND OFFSHORE OF BAJA CALIFORNIA NORTE. A COLD
FRONT WILL MOVE ACROSS NW MEXICO OVERNIGHT INTO EARLY THU. WINDS
HAVE STRENGTHENED OVER THE FAR NORTHERN WATERS OF THE GULF OF
CALIFORNIA. WINDS OVER THE AREA WILL DIMINISH TO 20 KT OR LESS
BY THU NIGHT. NW SWELLS ARE PROPAGATING THROUGH THE FORECAST
WATERS. SEAS WILL IN THE 6 TO 10 FT RANGE CAN BE EXPECTED WITH
THE HIGHEST OVER THE NORTHERN WATERS. 

S OF 15N E OF 110W...

A WEAK PRESSURE GRADIENT PREVAILS OVER THE AREA WITH GENTLE TO
LIGHT WINDS PREVAILING. LITTLE CHANGE IN WIND CONDITIONS ARE
EXPECTED OVER THE NEXT COUPLE OF DAYS. CURRENTLY COMBINED SEAS
ARE IN THE 4 TO 7 FT RANGE IN MIXED SW AND NW SWELL. A NEW SET
OF SW CROSS-EQUATORIAL SWELL WILL REACH THE SW FACING SHORES OF
THE GALAPAGOS BY THU NIGHT...THEN REACH THE PACIFIC SHORES OF
CENTRAL AMERICA FRI AFTERNOON AND EVENING. COMBINED SEAS IN THE
6-9 FT RANGE ARE EXPECTED WITH THIS SWELL OVER THE NEXT COUPLE
OF DAYS.

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

THE PRESSURE GRADIENT BETWEEN THE RIDGE AND LOWER PRESSURE IN
THE VICINITY OF THE ITCZ IS SUPPORTING MODERATE TO FRESH TRADES
N OF THE ITCZ. COMBINED SEAS IN THE 6 TO 9 FT RANGE PREVAIL OVER
THE AREA. THE PRESSURE GRADIENT WILL CONTINUE TO SUPPORT FRESH
TO STRONG TRADES OVER THIS REGION OVER THE NEXT COUPLE OF DAYS.
A NEW SET OF NW SWELLS WITH SEAS IN THE 6 TO 9 FT RANGE WILL
MOVE INTO THE NW WATERS THURSDAY AND PROPAGATE SE. 

$$
AL