117 
AXPZ20 KNHC 141419
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1605 UTC Mon Apr 14 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
1415 UTC.

...SPECIAL FEATURE...
Gulf of Tehuantepec Gale Warning: Fresh to strong northerly 
winds are within 60 nm of the coast of Tehuantepec, with seas 
in the 6-8 ft in mixed NE and S swell. High pressure will build 
across the western Gulf of America late Tue through Wed, and will
induce another round of fresh to strong gap winds across 
Tehuantepec. Winds are expected to reach gale-force Tue night 
through Wed morning, with seas building to 12 ft by Wed morning. 
Fresh to strong winds will then continue across the area through 
early Thu.

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

A surface trough extends from 08N78W to 06N85W. The ITCZ 
continues from 06N85W to 06N113W to beyond 02N140W. Scattered 
moderate isolated strong convection is noted from 02N to 11N 
between 104W and 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.

Elsewhere across the Mexican offshore waters, high pressure 
remains well NW of the area, with the associated ridge extending
southeastward to offshore of Baja Sur. This pattern is producing
mainly light to gentle NW to W winds, except moderate NW winds 
near the coast of Cabo San Lucas. Seas are in the 5-7 ft range in
NW swell off Baja California except 7 to 8 ft offshore of Baja 
Norte. Elsewhere over the open waters between Puerto Angel and 
the Revillagigedo Islands, seas of 5-6 ft in S swell prevail. In 
the Gulf of California, S to SW winds at less than 15 kt prevail,
with seas of 3 ft or less, except 4 to 5 ft in S swell across 
the entrance.

For the forecast, fresh to strong northerly gap winds across the
Gulf of Tehuantepec will diminish by early afternoon. Northerly 
gap winds will return tonight through Thu night across the 
Tehuantepec region, pulsing to strong at night. Winds will 
briefly reach gale-force Tue night into Wed morning. Elsewhere, 
NW swell across the Baja California waters today will subside 
this evening through Thu. Winds across the area waters will 
remain moderate or less through the week, except moderate to 
locally fresh across the Baja Sur waters Tue evening through Fri.
In the Gulf of California, expect moderate or weaker winds, 
except across northern portions where fresh to locally strong SW 
to W winds are expected each night. Winds over the northern Gulf 
of California may become strong to near gale- force Wed night.

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

Fresh to strong NE to E gap winds, and seas of 6 to 8 ft, 
prevail across the Papagayo region east of 88W, with fresh NE to
E winds extending downstream from 89W to beyond 92W. Moderate to
fresh N winds are across much of the Gulf of Panama N of 04N. 
Winds are light to gentle elsewhere, with seas of 5 to 7 ft in 
moderate S to SW swell. 

For the forecast, high pressure N of the region will support 
fresh NE to E gap winds pulsing to strong at night across the 
Papagayo region through the week, with locally rough seas. 
Moderate to fresh northerly winds will prevail across the Gulf of
Panama. Moderate S swell impacting the regional waters will 
subside today, with a decreasing trend in sea heights outside of 
Papagayo and the Gulf of Panama through Thu. 

...REMAINDER OF THE AREA....

A broad surface ridge covers the subtropical Pacific waters N of
20N and W of 120W. The pressure gradient between this area of 
high pressure and lower pressure in the vicinity of the ITCZ is 
supporting moderate to fresh NE winds over the waters N of the 
ITCZ and W of 130W. Seas over these waters north of 19N are in 
the 7 to 9 ft range in merging NW and S swell, and 5 to 8 ft 
south of 19N. Elsewhere W of 100W, moderate to locally fresh 
trade winds prevail N of the ITCZ to 14N, where seas are 6 to 9 
ft, highest east of 110W where S swell is mixing with NE swell 
propagating away from Tehuantepec. Across the remaining waters, 
winds are moderate or weaker with seas of 5-7 ft. 

For the forecast, N to NE swell generated from an earlier Gulf 
of Tehuantepec gale force gap wind event mixing with S swell will
gradually subside to around 8 ft tonight. High pressure will 
persist N of the area through mid week, maintaining fresh to 
locally strong NE winds W of 130W through Wed. Large NW to N 
swell over the NW subtropical waters will subside this evening 
through Wed. 

$$
AL