637 
AXPZ20 KNHC 020234
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
0405 UTC Mon Apr 1 2019

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 
0200 UTC.

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...   

A weak surface trough extends from 08N83W to 06N92W. The ITCZ 
continues from 06N92W to 06N112W to 04N128W to 01N140W. 
Scattered moderate showers are from 01N to 06N between 119W and 
134W.

...DISCUSSION...

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...  

A weak ridge extends from a 1021 mb high centered near 27N134W 
to 118W. The gradient between the ridge and lower pressures over 
mainland Mexico is producing gentle to moderate NW winds west of 
Baja California. Light to gentle NW winds will prevail off Baja 
California through Thu. Fresh winds are expected Fri and Fri 
night as a strong ridge builds west of the region. Large long 
period NW swell will sweep into the northern waters Sat night.

Gulf of California: Scatterometer data shows gentle to moderate 
NW winds across the Gulf of California. Fresh SW gap winds are 
expected to develop in the northern Gulf of California Tue night 
ahead of a weakening frontal trough.

Gulf of Tehuantepec: Northerly gap winds will pulse to 20 to 25 
kt through Wed, becoming light to gentle Wed night through Fri. 

OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND 
WITHIN 750 NM OF ECUADOR...

Gulf of Papagayo: Fresh to strong winds will develop in the Gulf 
of Papagayo Tue night, and continue through Thu.

Gulf of Panama: Gentle to moderate northerly winds will prevail 
across and downstream of the Gulf of Panama through Thu. 

Light to gentle winds will prevail elsewhere through the week.
Sea heights will gradually subside across the area.

REMAINDER OF THE AREA...

A stationary front over NW waters will gradually weaken to a 
frontal trough through Wed. Expect 8 ft seas in NW swell west of 
130W today, with the area of 8 ft seas shrinking to 04N-14N west 
of 136W Tue evening. High pressure will weaken the next couple 
of days, resulting in weakening trades and subsiding seas. Low 
pressure developing north of the area Wed will drag a cold front 
across the northern waters Wed night and Thu. Very large long 
period NW swell associated with this front will sweep across the 
northern waters later in the week as an intense low pressure 
system tracks well north of the region. Seas will build to 12-18 
ft across the NW portion by Fri night. 

$$
Mundell