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Tropical Weather Outlook
NWS National Hurricane Center Miami FL
500 AM PDT Thu Oct 18 2018
For the eastern North Pacific...east of 140 degrees west longitude:
1. Showers and thunderstorms associated with an area of low pressure
located south of the Gulf of Tehuantepec have changed little in
organization overnight. However, environmental conditions appear
conducive for development once the system moves west of the Gulf of
Tehuantepec, and a tropical depression or tropical storm is likely
to form during the next day or two. The low is forecast to move
generally west-northwestward at 10 to 15 mph for the next several
days, near or just offshore the coast of southern Mexico.
Additional information on this system can be found in High Seas
Forecasts issued by the National Weather Service.
* Formation chance through 48 hours...high...90 percent.
* Formation chance through 5 days...high...90 percent.
2. An elongated area of low pressure located about 1000 miles
south-southwest of the southern tip of the Baja California peninsula
is producing only limited shower activity. Development of this
system, if any, should be slow to occur during the next few days
while the system remains nearly stationary or drifts slowly
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 5 days...low...10 percent.
For additional information on the low near the Gulf of Tehuantepec
please see High Seas Forecasts issued by the National Weather
Service, under AWIPS header NFDHSFEPI, WMO header FZPN02 KWBC, and
on the web at https://ocean.weather.gov/shtml/NFDHSFEPI.shtml.