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Eastern North Pacific Tropical Weather Discussion


000
AXPZ20 KNHC 300849
TWDEP

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1005 UTC Mon Mar 30 2026

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 0600 UTC surface analysis and satellite imagery through
0830 UTC.

...SPECIAL FEATURES...

Gulf of Tehuantepec Gale Warning: The pressure gradient induced 
by broad high pressure across the Gulf of America will maintain 
gale-force N to NE gap winds across the Gulf of Tehuantepec N of
15N through this morning at 1200 UTC. Seas will remain rough 
through this morning also, before winds and seas begin to 
steadily diminish through the day.

Please read the latest HIGH SEAS FORECAST issued by the National
Hurricane Center at website - 
https://www.nhc.noaa.gov/text/MIAHSFEP2.shtml for more details.

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

A surface trough extends from 04N77W to 05N95W. The ITCZ extends
from 05N95W to beyond 03N140W. Scattered showers are along the 
trough. Scattered moderate convection is along the ITCZ and W of 
120W. 

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

Please see SPECIAL FEATURES above for more information on the 
Gulf of Tehuantepec gale-force gap wind event. 

Strong to near gale-force N to NE winds currently extend S of
the Tehuantepec coast from 15N95W to near 13N97W. Peak seas 
downwind of Tehuantepec are estimated at 10 to 12 ft, as noted in
latest altimeter data.

Beyond the Tehuantepec region, weak high pressure remains NW of 
the area, while broad low pressure persists from Baja Norte 
southward across the offshore waters of Baja Sur. This weak 
pressure pattern is producing gentle NW winds offshore of Baja 
California Norte. Gentle to moderate SW to S winds prevail 
across waters of Baja Sur and near the coast near Punta Eugenia.
Light to gentle winds dominate the remainder of the waters 
between Puerto Angel and the Revillagigedo Islands. Moderate seas
in northerly swell prevail offshore Baja California and W of 
110W, while slight seas elsewhere away from and downwind of the 
Gulf of Tehuantepec.

For the forecast, aside from the current Gulf of Tehuantepec gap
wind event, broad low pressure is expected to persist across the
waters of Baja California through today then drift NW and 
dissipate through Tue. Gentle to moderate winds will prevail 
across the majority of the waters through Wed, with moderate to  
fresh southerly winds developing in the northern Gulf of 
California. The pressure gradient will tighten thereafter, as 
high pressure gradually builds across the area from the NW late 
Wed through Fri. Winds offshore of Baja California are expected 
to increasing to moderate to fresh by midweek. Slight to 
moderate seas will prevail through Thu, with moderate cross- 
equatorial S swell moving into the Mexican waters Thu night.

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

Fresh to strong NE to E winds prevail over the Papagayo region, 
and extend southwestward to near 90W, where seas are 6-8 ft. In 
the Gulf of Panama, moderate to fresh N-NE winds prevail, and 
extend downwind to 03.5N, where seas are moderate in S swell. 
Winds are light to gentle elsewhere. Moderate seas prevail across
the remaining waters.

For the forecast, fresh to strong NE to E winds will pulse in 
the Gulf of Papagayo downwind to near 92W through early Wed, then
become moderate to fresh thereafter. In the Gulf of Panama, fresh N
to NE winds will continue to pulse through early Tue, building 
seas to rough at times. Rough seas in NW swell will continue to 
spread offshore Guatemala this morning due to the Gulf of 
Tehuantepec gale event. Slight to moderate seas will prevail 
otherwise through Tue night. Large SW swell will spread to the 
waters from offshore Ecuador to the Galapagos Islands Wed and 
build seas to 8-9 ft Thu.

...REMAINDER OF THE AREA...

Complex low pressure system remains centered NW of the local 
area, and extends a weak cold front across the far NW waters 
along 136W. Gentle to moderate winds prevail across the open 
waters, except fresh from 04N to 13N and W of 105W. Fresh NE 
winds extend from the Gulf of Tehuantepec gap wind event beyond 
100W, into the waters near 11N104W where seas are rough. 
Moderate seas in mixed swell prevail across the remainder of the 
waters.

For the forecast, gentle to moderate winds will dominate the open
waters through the next several days, with weak high pressure 
across much of the area and broad low pressure across Baja 
California. A series of weak frontal boundaries will move into 
the NW waters and weaken W of 130W throughout the week. N to NE 
swell generated by a gale-force gap wind event in the Gulf of 
Tehuantepec will spread SW and impact the waters roughly N of 05N
and E of 105W through this evening. Fresh to strong winds will 
pulse across these waters as well extending downwind from 
Tehuantepec and into the trade wind zone east of 110W. Moderate 
seas will continue otherwise through the early part of the week. 
Large southerly swell will move into the waters S of the Equator 
mid-week and reach 10N by Thu. 

$$
ERA