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Eastern North Pacific Tropical Weather Discussion (Text)



000
AXPZ20 KNHC 232157
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
2205 UTC Mon Jan 23 2017

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 1800 UTC surface analysis and satellite imagery through 
2100 UTC.

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

The ITCZ extends from 05N96W to 03N126W to 07N140W. No 
significant convection noted.

...DISCUSSION...   

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

A cold front extends from 32N114W through the northern Gulf of 
California, across the Baja Penisula to 25N118W. Scatterometer 
data shows fresh southerly winds ahead of the front in Gulf of 
California, and a large area of fresh to strong west-northwest 
winds behind the front moving into Baja California Norte. Large 
long period NW swell associated with the front will sweep east 
and southeast through Tuesday, affecting waters primarily west 
of the Baja Peninsula with 12-16 ft seas, hazardous near-shore 
marine conditions and heavy dangerous surf along the coastline. 
The front will dissipate by Tuesday afternoon, with marine and 
surf conditions gradually improving during the next two days.
8 to 10 ft seas will persist west of 96W through Thursday. High 
pressure in the western Gulf of Mexico and a tight pressure 
gradient in southern Mexico is supporting strong northerly winds 
in the Gulf of Tehuantepec. Winds will diminish overnight as the 
high moves east and the gradient relaxes. 

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

Light to gentle winds will prevail across most of the region 
through Tuesday. Seas will generally range between 3 and 5 ft 
until Tuesday, then build about a foot in response to arriving 
NW swell.

REMAINDER OF THE AREA...

A cold front extending from 25N118W to 18N140W and strong high 
pressure north of the front is supporting strong westerly winds 
N of 27N between 118W and 133W with seas from 14 to 23 ft in 
primarily NW swell. Large NW swell continues to spread across 
the remainder of forecast waters with 8 ft seas reaching the 
equator this afternoon.

$$
Mundell

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Page last modified: Monday, 23-Jan-2017 21:58:01 UTC