000
AXPZ20 KNHC 221603
TWDEP 

Tropical Weather Discussion 
NWS National Hurricane Center Miami FL
1605 UTC Thu Mar 22 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 1200 UTC surface analysis and satellite imagery through 
1545 UTC. 

...SPECIAL FEATURES...

Gulf of Tehuantepec Gale Warning: High pressure across the Gulf 
is supporting minimal gale force north winds into the gulf. 
Winds in Tehuantepec will briefly drop below gale force this 
afternoon then pulse again to 30-40 kt tonight, with max seas 
building to 13-14 ft. Winds and seas will decrease below gale 
force early Friday, then decrease significantly Sat night.

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

A surface trough extends from 08N83W to 06N94W. The ITCZ axis 
continues from 06N94W to 07N130W to 07N140W. Scattered moderate 
convection is within 30 nm either side of the ITCZ axis between 
116W and 122W.

...DISCUSSION...

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

Please see see Special Features Section above for details on 
gale force winds expected to affect the Gulf of Tehuantepec.

Weak high pressure is centered W of the Baja peninsula near 26N 
120W. The high will support gentle northerly winds in the Baja 
offshore waters through tonight. Moderate northerly winds will 
develop Fri morning as a strong ridge builds NW of the area 
behind a weakening cold front moving into southern California.
  
Gulf of California: Light to gentle variable winds will dominate 
the gulf waters through the weekend.

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

Gulf of Papagayo: Fresh to strong northeast winds downstream 
from the Gulf of Papagayo today will spread westward to near 92W 
on Friday. Strong noctural winds will continue through Sun, with 
max seas building to 10-11 ft. 

Fresh to strong northerly winds are also expected downstream of 
the Gulf of Panama through Friday evening. Light to gentle flow 
will prevail elsewhere across the region.

REMAINDER OF THE AREA... 

A low pres system well N of the area extends a cold front from 
30N125W to 19N136W. Fresh to strong northerly winds are expected 
NW of a line from 0N134W to 26N140W this morning with seas to 14 
ft. The low will continue to lift N-NE away from the area today, 
and the front will weaken then dissipate into Fri night. Large 
NW swell associated with the system will propagate southeastward 
across the NW forecast waters through Sat.

$$
Mundell/Ramos