000
AXPZ20 KNHC 030252
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC SUN APR 03 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.               

...SPECIAL FEATURES...

GULF OF TEHUANTEPEC GALE WARNING...A COLD FRONT IS MOVING ACROSS
THE E GULF OF MEXICO WITH 1023 MB HIGH PRESSURE OVER TAMPICO
MEXICO IN ITS WAKE. THE PRESSURE GRADIENT BETWEEN THE TAMPICO
HIGH AND THE EQUATORIAL TROUGH OVER THE EASTERN NORTH PACIFIC
VIA THE CHIVELA PASS HAS PRODUCED 30-40 KT GALE WINDS OVER THE
GULF OF TEHUANTEPEC. SEAS WILL BUILD TO 16 FT BY SUN MORNING.
WINDS WILL REMAIN GALE OR NEAR GALE OVER THE GULF OF TEHUANTEPEC
THROUGH MIDWEEK. WITH THE ADDED COMPONENT OF NOCTURNAL DRAINAGE
DURING THE OVERNIGHT HOURS... WINDS WILL PULSE TO MINIMAL GALE
FORCE TUE AND WED NIGHT. 

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... 
      
THE ITCZ EXTENDS FROM 03N112W TO 01N130W TO 03N135W. ISOLATED
MODERATE CONVECTION IS FROM 01N TO 08N BETWEEN 107W AND 140W.

...DISCUSSION... 

HIGH PRESSURE OF 1023 MB CENTERED NEAR 34N126W EXTENDS A RIDGE
SE TO NEAR 15N110W. THE PRESSURE GRADIENT BETWEEN THIS AREA OF
HIGH PRESSURE AND LOWER PRESSURE IN THE VICINITY OF THE ITCZ IS
MAINTAINING FRESH TO STRONG WINDS OVER THE WESTERN WATERS FROM
05N TO 10N W OF 130W. ENHANCED CONVERGENCE ASSOCIATED TO THESE
WINDS IS HELPING FOR ISOLATED CONVECTION OVER THE WESTERN WATERS
WITHIN THE ITCZ AS NOTED ABOVE. NW SWELLS ARE PROPAGATING THOUGH
THE AREA AND MERGING WITH SHORTER PERIOD NE SWELL WITH SEAS
GREATER THAN 8 FT COVERING MUCH OF THE FORECAST WATERS N OF 06N
W OF 120W. THE AREA OF HIGH PRESSURE WILL MAINTAINING OVER THE
NORTHERN WATERS AND MODERATE TO FRESH TRADES WILL PREVAIL OVER
THE WESTERN WATERS. THE NW SWELL WILL SUBSIDE OVER THE FORECAST
WATERS OVER THE NEXT COUPLE OF DAYS. BY EARLY MON COVERAGE OF
SEAS GREATER THAN 8 FT WILL SHRINK TO COVER THE AREA FROM 05N TO
10N W OF 135W.

GAP WINDS... HIGH PRESSURE BUILDING OVER THE GULF OF MEXICO OVER
THE NEXT COUPLE OF DAYS WILL HELP FOR WINDS TO INCREASE TO NEAR
25 KT OVER THE GULF OF PAPAGAYO BY EARLY MON. WINDS OVER THE
GULF OF PAPAGAYO WILL THEN PULSE TO NEAR 25 KT EACH NIGHT AND
DIMINISH TO NEAR 20 KT DURING THE DAYTIME HOURS THROUGH MIDWEEK. 

$$
FORMOSA