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Tropical Weather Outlook
NWS National Hurricane Center Miami FL
500 PM PDT Sun Sep 14 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 south of the southern tip 
of the Baja California Peninsula.

1. Off the Coast of Southwestern Mexico:
An elongated trough of low pressure, currently located 
south-southwest of the Gulf of Tehuantepec, is producing 
disorganized showers and thunderstorms. Environmental conditions 
appear generally conducive for some gradual development of this 
system, and a tropical depression could form by the latter half of 
this week while it moves west-northwestward around 10 to 15 mph.
*Formation chance through 48 hours...low...10 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 are not expected to support 
further development of this system.
*Formation chance through 48 hours...low...near 0 percent.
*Formation chance through 7 days...low...near 0 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 Mahoney/Bucci/Pasch