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Tropical Weather Outlook
NWS National Hurricane Center Miami FL
500 PM PDT Mon Aug 23 2021

For the eastern North Pacific...east of 140 degrees west longitude:

The National Hurricane Center is issuing advisories on Tropical 
Storm Marty, located about 300 miles west-southwest of the southern 
tip of the Baja California peninsula.

1. A broad area of low pressure located less than 200 miles offshore of 
Guatemala and southern Mexico is producing some disorganized showers 
and thunderstorms.  Environmental conditions are forecast to be 
favorable for gradual development of this system, and a tropical 
depression is likely to form by the middle to latter part of this 
week.  The system is expected to move westward to west-northwestward 
at 10 to 15 mph this week, passing offshore of the coast of 
southwestern Mexico.
* Formation chance through 48 hours...medium...60 percent. 
* Formation chance through 5 days...high...90 percent.

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

Forecaster Reinhart/Pasch