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Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1100 PM PDT Mon Sep 15 2025

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

Active Systems:
The National Hurricane Center is issuing advisories on Tropical 
Storm Mario, located a few hundred miles west-southwest of the 
southern tip of the Baja California Peninsula.

1. Off the Coast of Southwestern Mexico:
An trough of low pressure located several hundred miles off the 
coast of southern Mexico continues to produce a broad area of 
disorganized showers and thunderstorms.  Environmental conditions 
appear conducive for additional development of this system, and a 
tropical depression is likely to form during the middle to latter 
part of this week as it moves west-northwestward at 10 to 15 mph 
over the central east Pacific.
*Formation chance through 48 hours...medium...50 percent.
*Formation chance through 7 days...high...80 percent.



Forecaster Papin