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Tropical Weather Outlook
NWS National Hurricane Center Miami FL
1100 AM PDT Sun Sep 14 2025

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

Active Systems:
The National Hurricane Center has resumed issuing advisories on 
Tropical Storm Mario, located several hundred miles south of the 
southern tip of the Baja California Peninsula.

1. Off the Coast of Southwestern Mexico:
A broad area of disorganized showers and thunderstorms is expected 
to lead to the formation of an area of low pressure well offshore of 
the coast of southern or southwestern Mexico later this week. 
Thereafter, environmental conditions appear generally conducive for 
gradual development of this system, and a tropical depression could 
form by the latter half of this week as the system moves 
west-northwestward around 10 to 15 mph.
*Formation chance through 48 hours...low...near 0 percent.
*Formation chance through 7 days...medium...40 percent.

2. South and Southeast of the Hawaiian Islands:
Showers and thunderstorms remain limited and disorganized associated 
with a weak area of low pressure well southeast of the Hawaiian 
Islands.  Environmental conditions do not appear favorable for 
development over the next few days as the system moves westward 
around 10 mph, remaining well south of the Hawaiian islands. 
*Formation chance through 48 hours...low...near 0 percent.
*Formation chance through 7 days...low...10 percent.



Public Advisories on Tropical Storm Mario are issued under WMO 
header WTPZ33 KNHC and under AWIPS header MIATCPEP3. 
Forecast/Advisories on Tropical Storm Mario are issued under WMO 
header WTPZ23 KNHC and under AWIPS header MIATCMEP3.


Forecaster Papin