000
AXPZ20 KNHC 010300
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
207 UTC Thu Feb 1 2018

Tropical Weather Discussion for the eastern Pacific Ocean from
the Equator to 32N, east of 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: High pressure that prevailed
over the Gulf of Mexico has started to shift eastward. This has
veered winds over the SW Gulf of Mexico and also loosened the
pressure gradient over the area. Minimal gale force winds remain
over the Gulf of Tehuantepec, but will diminish below gale force
by Thu morning. Another gale force wind event is expected to
begin Fri night. This next event will be much weaker and shorter
duration than the current event. Please refer to the East 
Pacific High Seas Forecast under AWIPS/WMO headers HSFEP2/FZPN03 
KNHC for more details.

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

A surface trough extends from 05N77W to 07N86W TO 05N93W. The 
ITCZ continues from 05N93W to 06N122W to 08N134W to 08N140W. 
Scattered moderate convection is noted within 30 nm north of the
ITCZ between 113W and 120W.

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

Gulf of Tehuantepec: Please refer to the special features 
section above for more on the latest gap wind event. A broad 
wind field has generated a large area of 8 to 13 ft seas in 
northerly swell extending well away from the Gulf of Tehuantepec.
These seas will subside below 8 ft over the next 24 hours as
winds diminish over the Gulf of Tehuantepec. 

Elsewhere over the open waters, seas are expected to remain at 
or below 6 ft through Mon as a tranquil pattern prevails. 

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

Nocturnal winds will pulse to fresh to strong each night over 
the Gulf of Papagayo through Mon night. Elsewhere N of 09N, 
gentle to moderate offshore flow will prevail. Moderate to fresh 
winds will prevail in the Gulf of Panama. Elsewhere, gentle to 
moderate S to SW winds will prevail S of 09N the next few days.

REMAINDER OF THE AREA...

A mix of NE and NW swell continues over portions of the 
tradewind belt, with seas 8 ft or greater covering the waters 
from 04N to 12N W of 134W. Seas will subside to less than 8 ft 
across the trade wind belt Thu. Large swell generated from the 
latest Gulf of Tehuantepec gap wind event will propagate across 
the waters S of 14N and E of 115W, while gradually subsiding 
through the end of the week.

$$
AL