000
AXPZ20 KNHC 010906
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
704 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 0600 UTC surface analysis and satellite imagery through
0900 UTC.

...SPECIAL FEATURES...

Gulf of Tehuantepec Gale Warning: High pressure that prevailed
over the Gulf of Mexico has shifted eastward. This has veered 
winds over the SW Gulf of Mexico and loosened the pressure 
gradient over the area. This has helped for winds to diminish 
below gale force over the Gulf of Tehuantepec. Winds will once 
again increase to gale force Fri. This will be a short duration 
event, with winds diminishing below gale force Saturday. 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 06N77W to 07N84W TO 05N95W. The 
ITCZ continues from 05N95W to 07N119W to 06N128W to 06N140W. 
Scattered moderate convection is noted within 30 nm of the ITCZ 
between 113W and 118W.

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

Gulf of Tehuantepec: Please refer to the special features 
section above for more on the next gale force gap wind event. 

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 pulse to strong during the overnight hours in the 
Gulf of Panama the next few days. 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 to slowly subside over 
portions of the tradewind belt. Areal coverage of seas 8 ft or 
greater has decreased, currently over the waters from 08N to 10N
W of 138W. Seas over this area will further subside to less than
8 ft today. 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