000
AXPZ20 KNHC 132119
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
2020 UTC Sat May 13 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
2045 UTC.

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... 
The monsoon trough extends from 11N86W to 11N94W to 13N99W to 
08N104W to 07N116W. ITCZ extends from 07N116W to 07N124W to 
04N140W. Scattered moderate and isolated strong convection is
from 07N to 13N between 94W and 106W. Scattered moderate
convection is elsewhere from 04N to 16N between 84W and 110W... 
and from 04N to 09N between 123W and 129W.. 

...DISCUSSION...   

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...
Latest scatterometer passes indicates fresh to strong N-NW winds
across the waters off the coast of Baja California Norte...with a
recent altimeter pass showing seas ranging from 8 to 12 ft across
zones PMZ011 and PMZ013. Light to moderate variable winds are
occurring within the Gulf of California with seas in the 1-3 ft 
range...however by Sunday morning S to SW winds will increase
into fresh to occasional strong breeze levels N of 30N as an area
of low pressure develops across southern Arizona and California. 
Moderate winds are elsewhere off the coast of Baja California 
Sur and the remainder of the Mexico coast with seas ranging 4-7 
ft. Overall conditions across the northern zones will continue 
to improve through Monday night as winds diminish into moderate 
levels and seas begin subsiding...eroding from the current peak 
of 12 ft across the northern waters to below 8 ft by Monday 
night. By Wednesday...winds will freshen offshore of Baja 
California Norte once again with another set of NW swell 
building seas 8 to 10 ft late next week.

OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND 
WITHIN 750 NM OF ECUADOR...
Light to gentle winds with seas in the 3-5 ft range prevail. 
Winds and seas will remain in this range through the middle of 
next week. Convection remains active with across the Central 
America zones with the Monsoon Trough axis extending from the
Costa Rica coast near 11N86W to 12N95W.

REMAINDER OF THE AREA... 
High pressure centered NW of the forecast area near 40N149W 
extends a ridge SE to near the Revillagigedo Islands. Moderate 
to fresh trades prevail N of the ITCZ and generally W of 125W. 
Seas ranging from 7 to 9 ft continue to gradually subside through
Monday and will remain at a 6 to 8 ft range late Monday through 
Wednesday within moderate to occasional fresh trade wind flow.

$$
HUFFMAN