Eastern Pacific Tropical Weather Outlook

699
ABPZ20 KNHC 190539
TWOEP 
Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1100 PM PDT Fri Sep 18 2026
For the eastern and central North Pacific east of 180 longitude:
South-Southwest of Southwestern Mexico (EP99):
Showers and thunderstorms associated with a broad area of low 
pressure located well south-southwest of the southwestern coast of 
Mexico remain disorganized. Environmental conditions are conducive 
for development, and a tropical depression is expected to form late 
this weekend or early next week while it moves generally northward 
off the coast of southwestern Mexico.
* Formation chance through 48 hours...high...70 percent.
* Formation chance through 7 days...high...80 percent.
Western East Pacific (EP98):
Showers and thunderstorms associated with an area of low pressure 
located well southwest of the southern tip of the Baja California 
Peninsula remain disorganized. Environmental conditions are 
conducive for development, and a tropical depression is expected to 
form this weekend as it moves westward to west-northwestward at 10 
to 15 mph across the western East Pacific.
* Formation chance through 48 hours...high...80 percent.
* Formation chance through 7 days...high...80 percent.
Well East-Southeast of the Hawaiian Islands (Former TD 15-E):
Showers and thunderstorms associated with the remnants of Tropical 
Depression Fifteen-E, located well east of the Hawaiian Islands, 
remain disorganized. Environmental conditions appear conducive for 
some development of this system next week as it moves westward to 
west-southwestward, and a tropical depression could form well to the 
south or southeast of the Hawaiian Islands by the middle to latter 
part of next week.
* Formation chance through 48 hours...low...10 percent.
* Formation chance through 7 days...medium...50 percent.