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Tropical Weather Outlook
NWS National Hurricane Center Miami FL
500 AM PDT Sun Sep 21 2025

For the eastern and central North Pacific east of 180 longitude:

1. Off the Coast of Southern Mexico (EP97):
Showers and thunderstorms continue to show signs of organization in
association with an area of low pressure located a couple of hundred
miles south of the southern coast of Mexico. Environmental
conditions remain favorable for additional development, and a
tropical depression or tropical storm is expected to form within the
next day or so. This system is forecast to move west-northwestward
at 5 to 10 mph, roughly parallel to the coast of southern and
southwestern Mexico, and locally heavy rainfall is possible along
portions of this coastline through Monday. For additional
information, including gale warnings, please see the High Seas
Forecasts issued by the National Weather Service.
* Formation chance through 48 hours...high...90 percent.
* Formation chance through 7 days...high...90 percent.



High Seas Forecasts issued by the National Weather Service
can be found under AWIPS header NFDHSFEPI, WMO header FZPN02
KWBC, and on the web at ocean.weather.gov/shtml/NFDHSFEPI.php


Forecaster Papin/Blake