FGZS70 NSTU 252354
ESFPPG
ASZ001>004-261200-

Hydrologic Outlook
National Weather Service Pago Pago  AS
1254 PM SST Wed Mar 25 2026

...Flash Flooding Potential for Friday Through the Weekend...

A South Pacific Convergence Zone (SPCZ) is expected to develop and
strengthen later in the week. The SPCZ is forecast to move over,
or at least near, American Samoa on Friday through the weekend.
Widespread rain may be consistent and/or heavy at times, which may
cause flash flooding over all islands of American Samoa. The risk
of landslides increase, especially along steep mountain terrains,
due to the anticipated rainfall from the SPCZ.

Keep up to date with the latest forecast information through our
internet page (www.weather.gov/ppg), local media, social media,
and our NOAA Radio broadcasts.

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