000
AXPZ20 KNHC 010300
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
248 UTC Fri Mar 1 2019

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
0245 UTC.

...SPECIAL FEATURE...

Gale warning: A deep layer low northeast of the Big Island is 
moving toward northern California. An upper-level trough ahead 
of the low is supporting development of 1010 mb low pressure near
26N136W. Scattered moderate convection prevails ahead of the low 
as it moves northeast through the area while weakening. An area 
of strong to gale force winds is noted ahead of the low, 
especially near areas of thunderstorms. A Gale Warning has been 
issued to account for this until 01/0600 UTC. For more 
information, please see the High Seas Forecast product at 
www.hurricanes.gov/text/MIAHSFEP2.shtml.

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

The intertropical convergence zone extends from 08N86W to a 1010
mb low near 03N94W to 05N140W. Scattered moderate showers and 
thunderstorms are noted south of 04N between 90W-97W and south 
of 06N and west of 123W. 

...DISCUSSION...

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...  

Earlier scatterometer pass indicated generally moderate NW winds
off Baja California. These winds will diminish through Fri as 
high pressure west of Baja California shifts eastward and 
dissipates, ahead of a weak cold front that will move through 
the region on Sun. 

Elsewhere over Mexican offshore waters, moderate winds and seas
will persist into early next week. Looking ahead, the next
substantial gap wind event through the Gulf of Tehuantepec is
expected by Tue.

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

High pressure north of the region will support fresh
to occasionally strong gaps winds across the Gulf of Papagayo 
through Fri. Generally moderate winds and seas will persist 
elsewhere, with occasionally fresh winds pulsing into the western
Gulf of Panama.

REMAINDER OF THE AREA... 

A cold front will pass east of 140W this evening following the 
small gale center moving across this region. The front will 
weaken while it moves eastward over the waters north of 25N, as 
upper support for the front lifts north of the area. The 
dissipating front, or its remnant trough, will move into Baja 
California by Sun. Strong SW winds will precede the front Fri, 
with seas to 13 ft. The area of strong winds will move north of 
30N by Fri night, with northwest swell of 8 to 11 ft lingering 
over the region north of 20N west of 130W into Sat. Farther 
south, northwest swell will mix with wind waves due to trade wind
flow from 05N to 20N west of 120W into early next week. Looking 
ahead, the next cold front will move to the northeast of Hawaii 
and cross 140W by late Sun into Mon, accompanied by strong SW to 
W winds with a new round of NW swell in excess of 8 ft.

$$

ERA