770
AXPZ20 KNHC 151532
TWDEP

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1605 UTC Tue Apr 15 2025

Tropical Weather Discussion for the eastern Pacific Ocean from
03.4S to 30N, east of 120W including the Gulf of California, and
from the Equator to 30N, between 120W and 140W. The following
information is based on satellite imagery, weather observations,
radar, and meteorological analysis.

Based on 1200 UTC surface analysis and satellite imagery through
1430 UTC.

...SPECIAL FEATURE...
Gulf of Tehuantepec Gale Warning: High pressure over the Gulf of
Mexico will induce N gap winds over the Gulf of Tehuantepec.
These will reach minimal gale-force tonight into Wed morning.
Peak seas should reach around 12 ft on Wed. The gap winds will
gradually diminish across the Gulf before dissipating Thu night.

Gulf of California Gale Warning: A surface trough or weak low
pressure is expected to prevail across the N Gulf of California
and extend into S California through Thu. Over the N Gulf of
California strong to locally gale-force SW winds are expected Wed
night, diminishing to strong to near gale Thu night. Seas should
peak around 10 ft Wed night with a secondary peak of around 8 ft
Thu night.

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

A surface trough extends from the coast of Colombia near 07N78W
and extends to 05N89W. The ITCZ then extends from 05N89W to
01N140W. A second ITCZ extends from 03S100W to beyond 05W140W.
Scattered moderate and isolated strong convection is noted from
02N-06N between 83W-107W and from 05S-EQ between 107W-118W.

...OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

See the special features section for an upcoming gale-force gap
wind event across the Gulf of Tehuantepec Tue night into Wed
morning and a N Gulf of California gale-force wind event.

A N gap wind over the Gulf of Tehuantepec causing fresh to strong
winds north of 13N between 94W-96W. While no observations over
the water was available this morning, the land station Salina
Cruz is reporting 25 kt N winds at 1200 UTC. Seas are 8-9 ft.
Elsewhere over the Pacific waters, winds are moderate or weaker
and seas are 5-6 ft in mixed NW and S swell. Winds are moderate
to fresh southwesterlies over the N Gulf of California with seas
to 4 ft. Elsewhere over the Gulf of California, winds are
moderate or weaker and seas are 1-3 f.

For the forecast, N gap winds over the Gulf of Tehuantepec will
reach minimal gale-force tonight into Wed morning. The gap winds
will gradually diminish across the Gulf before dissipating Thu
night. Over the N Gulf of California strong to locally gale-force
SW winds are expected Wed night, diminishing to strong to near
gale Thu night. Elsewhere, winds across the Mexican Offshore
zones will be moderate or weaker.

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

A gap wind over the Gulf of Papagayo region is producing fresh to
strong northeasterlies this morning with seas 6-8 ft. Over the
Gulf of Panama, moderate to fresh N winds and seas to 6 ft
prevail. Elsewhere, winds are moderate or weaker with seas to 5-7
ft in

For the forecast, high pressure centered north of Central
America will continue to support fresh NE to E gap winds pulsing
to strong at night across the Papagayo region through the
weekend. The same high pressure will force moderate to fresh N
winds across the Gulf of Panama through the weekend. Scattered
showers and isolated tstms are expected over the Panama and Costa
Rica offshore zones for the next few days.

...REMAINDER OF THE AREA....

A moderate pressure gradient between a 1027 mb high at 34N144W to
lower pressure over the ITCZ is forcing only moderate to fresh
trades north of 05N. Elsewehre winds are gentle to moderate. 8-9
ft seas are occurring north of 27N west of 129W due to N to NE
swell, as well as from 05N-17N west of 137W due to NE swell.
Elsewhere, seas are 6-7 ft in mixed swell. No significant deep
convection is occurring outside of that associated with the ITCZ.

For the forecast, little change in the winds across the waters is
expected for the next several days, except for slightly stronger
trades occurring over the weekend. The moderate N to NE swell
along our northern border will continue through Thu before
diminishing. The moderate NE swell in the vicinity of 10N137W
will continue for the next few days, except for being enhanced
slightly by the stronger trades over the weekend.

$$
Landsea