000
AXPZ20 KNHC 310925
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1005 UTC Tue Oct 31 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/MONSOON TROUGH... 

The monsoon trough extends from 09N77W across Panama to 11N90W 
to 1010 mb low pressure near 11N94W to 1010 mb low pressure near 
13N103W to 11N113W to 1010 mb low pressure near 12N122W to 
09N125W to 10N130W. The ITCZ continues from 10N130W to beyond 
09N140W. Scattered moderate convection is from 10N to 13N 
between 101W and 114W. Scattered moderate isolated strong 
convection is from 09N to 15N between 118W and 123W.
 
...DISCUSSION...

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

Significant swell event affecting the coast of Baja California 
the past few days continues to decay, with seas subsiding to 6 
to 8 ft. Sea conditions will be 4 to 6 ft by tonight. A weak 
ridge extending into the offshore waters of Baja California will 
produce light to gentle NW winds through the week. 

Gulf of California: 0430 UTC ASCAT data showed moderate to fresh 
W-SW winds in the northern Gulf between 29N-31N. Little change 
is expected in northern waters today. Gentle to moderate winds 
are expected across the remainder of the gulf through Saturday. 

OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND 
WITHIN 750 NM OF ECUADOR...
    
Latest scatterometer data indicates gentle to moderate winds S 
of the monsoon trough, and light winds elsewhere. Seas generally 
are between 4 to 6 ft. Little change is expected through Friday.

REMAINDER OF THE AREA...

NW swell event the past few days continues to propagate through 
the forecast waters west of 100W, supporting seas of 7 to 9 ft. 
Seas remain 8 to 9 ft in most of the waters S of 15N W of 110W. 
Seas will continue to subside today across the region.

A weak cold front will reach the NW corner of the forecast area 
on Wednesday night, then move slowly SE through Friday with 
little impact in winds and seas. Strong high pressure will build 
over NW waters Friday night and Saturday, pushing the front 
eastward. At that time, expect fresh to strong winds behind the 
front and building seas of 12 to 13 ft in long period NW swell.
  
$$
Mundell