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Tropical Weather Outlook
NWS National Hurricane Center Miami FL
500 PM 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 later 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 by Sunday
afternoon. 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...50 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...50 percent.
Forecaster Papin/Beven
Original author: NHC
