East Pacific Discussions
Basin Outlook & Discussion
Expires:No;;969417
ABPZ20 KNHC 010500
TWOEP 

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1000 PM PST Sat Nov 30 2024

For the eastern North Pacific...east of 140 degrees west longitude:

Tropical cyclone formation is not expected during the next 7 days.

This is the last regularly scheduled Tropical Weather Outlook of 
the 2024 eastern North Pacific Hurricane Season.  Routine issuance 
of the Tropical Weather Outlook will resume on May 15, 2025. During 
the off-season, Special Tropical Weather Outlooks will be issued as 
conditions warrant.

$$
Forecaster Beven



						

Expires:No;;335735
AXPZ20 KNHC 071607
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1605 UTC Sat Dec 7 2024

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.

...SPECIAL FEATURES...

Gulf of Tehuantepec Gale Warning: The pressure gradient between
high pressure north of the area and lower pressures in the deep 
tropics is producing strong to gale-force northerly winds in the
Gulf of Tehuantepec. These winds are forecast to continue 
through Sun morning. Winds will diminish below strong force on 
Mon. Rough seas are expected to continue through the weekend. 
Please read the latest High Seas and Offshore Waters Forecast 
issued by the National Hurricane Center at the website- 
https://www.nhc.noaa.gov/text/MIAHSFEP2.shtml and
https://www.nhc.noaa.gov/marine/offshores_eastpac.php for 
details.

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

A monsoon trough extends from the southern coast of Panama near 
08N78W to 07N85W to 07N95W. An ITCZ continues from 07N95W to
09N118W, then from 08N122W to beyond 07N140W. Scattered moderate
convection is seen from 07N to 13N between 100W and 132W.

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

Please read the Special Features section above a Gale Warning in
the Gulf of Tehuantepec region.

A broad ridge dominates the waters north of 20N, anchored by
1025 mb high pressure off southern California. This pattern
maintains gentle to moderate breezes and 3 to 5 ft seas across
the Mexican offshore waters, other than the Gulf of Tehuantepec.

For the forecast, the gale force gap winds and rough seas across
the Gulf of Tehuantepec will gradually diminish through early 
Sun as high pressure north of the area weakens and shifts 
eastward. Gentle to moderate breezes and moderate seas will 
persist elsewhere into early next week. Looking ahead, fresh to 
strong winds and building seas will follow a cold front moving 
down the length of the Gulf of California Mon night through Wed.
Farther south, strong gales are possible over the Gulf of 
Tehuantepec Wed following a cold front moving through southern 
Mexico. 

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

A strong ridge over the central United States is maintaining 
fresh to locally strong NE to E winds in the Gulf of Papagayo and
extending downstream to 90W, with 5-7 ft seas. Elsewhere, 
moderate or weaker winds and moderate seas are prevalent.

For the forecast, NE swell generated from a gap wind event in the Gulf
of Tehuantepec will impact the far offshore waters of Guatemala
through tonight. Strong ridge north of the Caribbean will 
support pulses of fresh to strong gap winds across the Gulf of 
Papagayo through Sun night. Gentle to moderate breezes and 
moderate seas primarily in SW swell will persist elsewhere.

...REMAINDER OF THE AREA...

A 1025 mb high pressure system positioned north of the area 
supports moderate to fresh northeasterly trade winds south of 
20N to the ITCZ. Seas over these waters are 8-10 ft, with the 
highest seas occurring in the trade wind zone of the deep tropics 
west of 125W. Elsewhere, moderate or weaker winds and moderate 
seas prevail elsewhere.

For the forecast, high pressure will maintain moderate to fresh
NE to E trade winds over the waters from 10N to 20N west of 120W
through Mon. Meanwhile, NW swell will move into the region, 
reinforcing and maintaining 8 to 10 ft wave heights not only in 
the trade wind zone, but farther north to the west of 130W. 
Looking ahead, the trade winds and associated seas will increase 
west of 130W into mid-week as high pressure builds north of the 
region. 

Farther east, moderate to fresh NE to E winds originating from
the gap wind event across Tehuantepec are reaching as far west as
105W. A trough will form along the monsoon trough Sun into Mon 
and drift south fo the Revillagigedo Islands, enhancing the winds
and supporting seas to 8 ft along the trough axis. This will be 
joined by fresh easterly winds from the Papagayo gap wind event 
to support an elongated area of seas to 8 ft from 08N to 12N to 
the north of the ITCZ Sun into Mon before subsiding late Mon.
These winds and seas diminish through mid week.  

$$

Chan


						
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