Heavy Rain — Tutuila, American Samoa

2025-05-08 · near Pago Pago, Tutuila, American Samoa

Event narrative

A driver along the main road in Matu'u village reported a minor landslide in the early afternoon of the 8th. A picture shows rocks blocking the westbound lane of the roadway. Estimated rainfall was 6 inches on May 5th through May 8th.

Wider weather episode

From May 5th through May 9th, a ridge from the south of the islands interacted with an equatorial trough to the north. This created high winds on the 6th through the 8th with gusts reaching around 55 mph at WSO Pago Pago. Total rainfall recorded at WSO Pago Pago was 12.62 inches during this time, including 4.93 inches which fell from 8:50 PM SST to 11:50 PM SST on the 9th. High winds also created minor coastal flooding and erosion along the southern and eastern coast lines. As American Samoa received well above average rainfall throughout the year along with this event, landslides occurred along some parts of the islands.

View location on OpenStreetMap → (-14.3011, -170.6849)

Source: NOAA Storm Events Database, event_id 1246692. Narrative written by the NWS forecast office that issued the report.