000
AXPZ20 KNHC 091547
TWDEP
Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1605 UTC Mon Mar 9 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 1200 UTC surface analysis and satellite imagery through
1500 UTC.
...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
A surface trough extends from 09.5N84W to 00.5N106W. The ITCZ is
analyzed from 00.5N106W to 02N117W to 02.5S126W to 00N140W.
Scattered moderate convection is noted from 03.4S to 07N between
80W and 95W.
...OFFSHORE WATERS WITHIN 250 NM OF MEXICO...
A 1008 mb low is over the outer offshore waters of Baja
California Norte near 27N117W, and drifting toward the E-NE this
morning. To the west and northwest of the low, a broad surface
ridge prevails, which is producing a tight pressure gradient
between to low and 130W, and supporting fresh to strong W to NW
winds over the S and W semicircles of the low, extending to
approximately 22N from the low center. Rough seas to 9 ft are
within these winds. Scattered showers and isolated thunderstorms
are occurring across the eastern semicircle of the low and extend
to coastal zones from Punta Eugenia and across much of Bahia de
Sebastian Vizcaino. Fresh to locally strong NW winds are
occurring W and NW of the low between 120W and 130W. In the Gulf
of California, winds are light to gentle and seas slight.
Moderate or weaker winds and slight to moderate seas prevail
elsewhere, where a broad a very weak ridge prevails. Fresh to
locally strong N gap winds have developed this morning across the
Gulf of Tehuantepec to near 14N, where seas are 5 to 6 ft..
For the forecast, the aforementioned low will slowly move east
and reach Punta Eugenia this evening before dissipating over the
Gulf of California Mon night into Tue. Fresh to strong winds and
rough seas associated with this low will continue to affect the
offshore waters between Cabo San Lazaro and Sebastian Vizcaino
Bay through tonight. The remnants of the low will produce moderate
to fresh SW winds in the Gulf of California late today through
Tue. On Tue, a ridge will build toward Baja California as new NW
swell crosses the waters just west of the Baja California Norte
offshores. The pressure gradient between the ridge and lower
pressure over Mexico will support fresh to strong NW winds
between Los Cabos and Cabo Corrientes, including Las Tres Marias
late Tue into Wed. Otherwise, fresh to strong N-NE winds in
Tehuantepec will diminish to moderate or weaker speeds by this
evening, however a stronger gap wind event is forecast to begin
on Thu morning, with winds likely reaching gale-force Thu
evening.
....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA,
AND WITHIN 750 NM OF ECUADOR...
Fresh to locally strong NE to E gap winds and moderate seas to 7
ft are across the Papagayo region and downwind near 90W, while
moderate N winds and slight to moderate seas prevail across the
Gulf of Panama and downstream to 05N. Light to gentle winds and
slight to moderate seas are elsewhere. The leading edge of strong
cross-equatorial S-SW swell has begun to cross the equator and
reach the Galapagos Islands and coastal Ecuador this morning, and
will build during the next 24 hours.
For the forecast, fresh to strong gap winds will continue to
pulse in the Papagayo region through Fri night as high pressure
remains N of the area. Moderate to fresh N winds will also pulse
in the Gulf of Panama through the weekend. Mainly light to gentle
winds will prevail elsewhere through the forecast period.
Otherwise, cross-equatorial S-SW swell will build across the
regional waters today, and bring rough seas to the offshore
waters SW of the Galapagos Islands this afternoon, then continue
to spread N and NE across the area offshore waters and coasts,
before subsiding starting Tue evening.
...REMAINDER OF THE AREA...
High pressure of 1029 mb remains well to the NW of the region
near 37N145W. Associated broad ridging covers the waters N of
about 15N and W of 120W. The related pressure gradient is
sustaining fresh to locally strong NE winds from 04N to 18N
between 123W and 140W. Rough seas to 8 ft in mixed swell prevail
with these winds. A 1008 mb low pressure is over the outer Baja
California Norte offshores with fresh to locally strong W to NW
winds extending westward to 129W and southward to 22N.
Elsewhere, winds are of moderate or weaker and seas moderate in
mixed swell.
For the forecast, the low pressure will move eastward and
dissipate over the Baja California Peninsula tonight into Tue.
New high pressure will develop NW of Baja California, extending a
ridge across the E Pacific subtropical waters. As a result, new NW
swell will move into the waters W of the Baja California offshores
to about 130W and subside Thu night. Otherwise, large S-SW
cross- equatorial swell will reach the waters W of the Galapagos
by this evening and then will spread N and NE, producing rough
seas through Wed, before subsiding from east to west Thu through Sat
morning.
$$
Stripling
