NHC Eastern Pacific Tropical Weather Discussion
Thu Jan 15 10:47 pm
000
AXPZ20 KNHC 160346
TWDEP
Tropical Weather Discussion
NWS National Hurricane Center Miami FL
0405 UTC Fri Jan 16 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 0000 UTC surface analysis and satellite imagery through
0300 UTC.
...SPECIAL FEATURES...
Gulf of Tehuantepec Gale Warning:
Strong gale force winds of 40 kt is likely occurring across the
Tehuantepec region and downwind to near 13N. Unfortunately
scatterometer data missed the area earlier this afternoon.
However, earlier this afternoon an altimeter pass indicates seas
of 10 to 13 ft within these winds. A building ridge across the
eastern slopes of the Sierra Madre mountains in Mexico and the
western Gulf of America supports this gap wind event. Winds are
forecast to further increase to 45 kt tonight, with seas building
to 16 or 17 ft. Seas generated from this event will spread well
away from the Tehuantepec area, with seas 8 ft or greater
reaching as far west as 105W by Fri morning. Marine interests
transiting across the Gulf of Tehuantepec tonight and early Fri
should be aware of this gap wind event, and take the necessary
action to avoid hazardous marine conditions over the affected
waters. Gale conditions are expected to continue through early
Fri morning. Another gap wind event reaching gale force is
forecast to begin Sat night.
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...
The monsoon trough extends from a 1010 mb low pressure located
over northern Colombia near 11N74W to 08.5N84W to 05N106W. The
ITCZ continues from 05N106W to 08N115W, then it resumes from
08N118N to beyond 08N140W. Scattered moderate convection is
noted from 05N to 08N E of 86.5W to the coast of Colombia.
...OFFSHORE WATERS WITHIN 250 NM OF MEXICO...
A Gale Warning remains in effect for the Tehuantepec region.
Refer to the Special Features section above for more details.
A ridge dominates the offshore forecast waters of Baja California
producing light to gentle NW to N winds with seas of 4 to 6 ft
in NW swell. Moderate NW winds are noted over most of the
central and southern Gulf of California, with seas of 1 to 3 ft.
Gentle winds and slight seas prevail elsewehre across the Gulf of
California. Moderate NW winds and moderate seas are noted near
Cabo Corrientes. Outside of the Tehuantepec area, light to gentle
winds and moderate seas in NW swell prevail elsewhere across the
Mexican offshore forecast waters.
For the forecast, strong gale force winds and very rough seas are
expected in the Gulf of Tehuantepec through early Fri morning.
Please, see the Special Features section above for more
information. In the Gulf of California, mainly gentle to moderate
NW winds are expected with seas 3 ft or less. Elsewhere, gentle
to moderate winds and moderate seas will prevail throughout the
forecast period.
....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA,
AND WITHIN 750 NM OF ECUADOR...
Fresh to strong NE to E winds prevail across the Papagayo region
and downstream
AXPZ20 KNHC 160346
TWDEP
Tropical Weather Discussion
NWS National Hurricane Center Miami FL
0405 UTC Fri Jan 16 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 0000 UTC surface analysis and satellite imagery through
0300 UTC.
...SPECIAL FEATURES...
Gulf of Tehuantepec Gale Warning:
Strong gale force winds of 40 kt is likely occurring across the
Tehuantepec region and downwind to near 13N. Unfortunately
scatterometer data missed the area earlier this afternoon.
However, earlier this afternoon an altimeter pass indicates seas
of 10 to 13 ft within these winds. A building ridge across the
eastern slopes of the Sierra Madre mountains in Mexico and the
western Gulf of America supports this gap wind event. Winds are
forecast to further increase to 45 kt tonight, with seas building
to 16 or 17 ft. Seas generated from this event will spread well
away from the Tehuantepec area, with seas 8 ft or greater
reaching as far west as 105W by Fri morning. Marine interests
transiting across the Gulf of Tehuantepec tonight and early Fri
should be aware of this gap wind event, and take the necessary
action to avoid hazardous marine conditions over the affected
waters. Gale conditions are expected to continue through early
Fri morning. Another gap wind event reaching gale force is
forecast to begin Sat night.
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...
The monsoon trough extends from a 1010 mb low pressure located
over northern Colombia near 11N74W to 08.5N84W to 05N106W. The
ITCZ continues from 05N106W to 08N115W, then it resumes from
08N118N to beyond 08N140W. Scattered moderate convection is
noted from 05N to 08N E of 86.5W to the coast of Colombia.
...OFFSHORE WATERS WITHIN 250 NM OF MEXICO...
A Gale Warning remains in effect for the Tehuantepec region.
Refer to the Special Features section above for more details.
A ridge dominates the offshore forecast waters of Baja California
producing light to gentle NW to N winds with seas of 4 to 6 ft
in NW swell. Moderate NW winds are noted over most of the
central and southern Gulf of California, with seas of 1 to 3 ft.
Gentle winds and slight seas prevail elsewehre across the Gulf of
California. Moderate NW winds and moderate seas are noted near
Cabo Corrientes. Outside of the Tehuantepec area, light to gentle
winds and moderate seas in NW swell prevail elsewhere across the
Mexican offshore forecast waters.
For the forecast, strong gale force winds and very rough seas are
expected in the Gulf of Tehuantepec through early Fri morning.
Please, see the Special Features section above for more
information. In the Gulf of California, mainly gentle to moderate
NW winds are expected with seas 3 ft or less. Elsewhere, gentle
to moderate winds and moderate seas will prevail throughout the
forecast period.
....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA,
AND WITHIN 750 NM OF ECUADOR...
Fresh to strong NE to E winds prevail across the Papagayo region
and downstream