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Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1100 AM PDT Wed Sep 12 2018

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

1. Showers and thunderstorms are showing some signs of organization in
association with a trough of low pressure located a couple of
hundred miles west of southwestern Mexico.  Although upper-level
winds are only marginally conducive, some development of this
system is possible over the next few days while the disturbance
moves slowly westward.
* Formation chance through 48 hours...low...30 percent.
* Formation chance through 5 days...medium...40 percent.

2. An area of low pressure is expected to develop well south of the
southwestern coast of Mexico by the weekend.  Thereafter,
environmental conditions appear conducive for some development, and
a tropical depression could form while the system moves generally
westward to west-northwestward south of Mexico.
* Formation chance through 48 hours...low...near 0 percent.
* Formation chance through 5 days...medium...40 percent.

Forecaster Blake