East Pacific Discussions
Basin Outlook & Discussion
Expires:No;;895072
ABPZ20 KNHC 051541
TWOEP 

Special Tropical Weather Outlook
NWS National Hurricane Center Miami FL
740 AM PST Sat Jan 5 2019

For the eastern North Pacific...east of 140 degrees west longitude:

Shower activity associated with a broad low pressure system centered
about 1100 miles west-southwest of the southern tip of the Baja
California peninsula has become less organized since yesterday.
Environmental conditions have become unfavorable and tropical or
subtropical cyclone development is not anticipated. Additional
information on this system can be found in High Seas Forecasts
issued by the National Weather Service. This is the last Special
Tropical Weather Outlook that will be issued on this system.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 5 days...low...near 0 percent.

Routine issuance of the Tropical Weather Outlook will resume on May
15, 2019.  During the off-season, Special Tropical Weather Outlooks
will be issued as conditions warrant.

&&

High Seas Forecasts are issued by the National Weather Service
under AWIPS header NFDHSFEPI, WMO header FZPN02 KWBC, and are
available on the web at
https://ocean.weather.gov/shtml/NFDHSFEPI.shtml.

$$
Forecaster Zelinsky


						

Expires:No;;668348
AXPZ20 KNHC 202102
TWDEP 

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
1950 UTC Wed Mar 20 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 1800 UTC surface analysis and satellite imagery through
2100 UTC.

...SPECIAL FEATURES...

Gulf of Tehuantepec: Strong winds over the Gulf of Tehuantepec 
will pulse to minimal gale force during the overnight hours 
tonight and again on Thu night. Seas will peak near 12 ft during
the period of strongest winds. 

Please read the latest High Seas Forecast issued by the National 
Hurricane Center under AWIPS/WMO headers FZPN03 KNHC/HSFEP2 or 
at website https://www.nhc.noaa.gov/text/MIAHSFEP2.shtml for 
further details.

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

A surface trough extends from 07N78W to 08N85W to 07N90W. The 
ITCZ continues from 07N90W to 02N114W to 02N140W. Scattered 
moderate isolated strong convection is noted from 03N to 07N 
between 84W and 86W. Scattered moderate isolated strong 
convection is noted from 04N to 06N between 93W and 98W. 
Scattered moderate isolated strong convection is noted from 04N 
to 06N between 127W and 130W.

...DISCUSSION...

OFFSHORE WATERS WITHIN 250 NM OF MEXICO...  

Please read the Special Features section for more details about 
the Gulf of Tehuantepec Gale Warning.

Gulf of California: A weak cold front is passing across the 
northern Gulf of California. S to SW gap winds will strengthen
briefly tonight. Otherwise, fairly benign marine conditions will
prevail through the upcoming weekend, with seas 3 ft or less.

Elsewhere, moderate to locally fresh NW winds will prevail 
through the upcoming weekend. NW swell propagating across the
waters off Baja California Norte will spread southward across 
the rest of the Baja Peninsula, with seas 8 ft or greater 
expected over this area by Thu, before starting to gradually 
subside. Another swell event will reach the waters during the 
upcoming weekend.

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

Gulf of Papagayo: Winds will pulse to strong during the overnight
hours across the Gulf of Papagayo through the forecast period,
strengthening some and expanding in coverage Fri. Seas will peak
around 9 ft during the strongest winds.

Gulf of Panama: Mainly moderate to fresh northerly winds will
prevail, pulsing to strong Thu night into early Fri, then again
the next two nights. Seas will peak around 8 ft during the
strongest winds.

Between Ecuador and the Galapagos Islands, 4-6 ft seas in mixed 
swell will persist, building to 5-7 ft during the upcoming
weekend with the arrival of both long period SW and NW swell. 
Elsewhere, light to moderate winds and 3-5 ft seas will prevail 
for the next several days. 

REMAINDER OF THE AREA... 

A dissipating cold front extending from 29N115W to 25N118W to 
19N129W has ushered in a large set of NW swell into the area. 
Seas are currently peaking near 12 ft over NW and N central 
waters. The swell will continue to propagate SE across the waters
while subsiding the next couple of days. By Thu afternoon, seas 
8 ft or greater will cover most of the area W of 110W. A 
reinforcing set of NW swell will arrive Thu morning along with 
another cold front that will weaken into the early part of the 
upcoming weekend. A third cold front will arrive early Sun,
ushering in yet another set of NW swell to the NW waters.

$$
AL


						
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