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Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1100 AM PDT Fri Aug 20 2021

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

1. Hurricane Grace, located over the southwestern Gulf of Mexico, is 
forecast to move inland over mainland Mexico tonight and dissipate 
over Mexico by early Sunday.  However, Grace's remnants are expected 
to continue moving westward and emerge over the eastern Pacific 
Ocean off the west-central coast of Mexico early Sunday.  
Environmental conditions are forecast to be conducive for 
development, and a tropical depression is likely to form by early 
next week while the system moves westward at 10 to 15 mph away from 
the coast of Mexico.
* Formation chance through 48 hours...medium...40 percent. 
* Formation chance through 5 days...high...80 percent.

2. An area of low pressure is forecast to form offshore of the coast of 
southern Mexico early next week.  Environmental conditions are 
expected to be conducive for some gradual development thereafter, 
and a tropical depression could form by the middle of next week.  
The system is forecast to move generally west-northwestward at 10 to 
15 mph, near or just offshore of the southwestern coast of Mexico. 
* Formation chance through 48 hours...low...near 0 percent. 
* Formation chance through 5 days...medium...40 percent.

Forecaster Reinhart/Cangialosi