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Eastern North Pacific Tropical Weather Discussion (Text)



000
AXPZ20 KNHC 290220
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
0405 UTC Wed Mar 29 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 0000 UTC surface analysis and satellite imagery through
0200 UTC.

...INTERTROPICAL CONVERGENCE ZONE... 

The Intertropical Convergence Zone axis extends from 06N86W to 
04N95W to 02N103W. Scattered moderate and isolated strong 
convection is noted from 04N to 07N between 89W and 94W. 

...DISCUSSION...   

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

High pressure north of the area extends a ridge southeast to 
near the Revillagigedo Islands. The pressure gradient between 
the ridge and lower pressure inland over Mexico is supporting 
fresh to strong NW winds west of Baja California. Long period NW
swell continues to propagate across the offshore waters west of
Baja California building seas to 11-12 ft. The high pressure 
will remain nearly stationary over the next 24 hours, then will
shift westward. Thursday night into Friday, additional pulses of
NW swell will bring seas of 11-12 ft across the offshore zones 
PMZ009 and PMZ011. 

Fresh to strong NW winds are noted across the central Gulf of 
California, particularly between 26N-29N. The winds will 
diminish tonight as the high pressure weakens slightly. 

Light to gentle winds will prevail elsewhere through the week. 

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

Gap wind events are not expected to be very significant the next
few days across Central America. Light to gentle winds and 3-5 
ft seas are expected to prevail over the forecast waters the next
several days.

REMAINDER OF THE AREA...

High pressure of 1030 mb located north of area near 34N133W 
dominates the north forecast waters. The pressure gradient 
between this high and the near-equatorial trough is supporting 
fresh to strong trades from roughly 10N-21N west of 125W. Seas 
over this area are in the 8-11 ft range in a mix of long period 
NW swell and NE wind waves. The aerial extent of the trades will 
diminish through Wednesday as the high pressure moves toward the 
west and weakens slightly. Marine conditions over the forecast 
region will change little during the next 48 hours under the 
influence of this broad ridge.

$$
GR


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Page last modified: Wednesday, 29-Mar-2017 02:20:53 UTC