Flash Flood — Micronesia, Guam

2025-04-29 · near Pohnpei, Micronesia, Guam

Event narrative

Videos sent from Pohnpei showed engorged streams and waterfalls that were pushing rapidly moving water up onto surrounding walkways on April 29th. The weather office at Pohnpei measured a 24 hour total of 4.77 inches of rainfall and other gages across the island reporting between 2.96 and 4.52 inches, with locally heavy amounts likely. Most of this rain fell within a 4 hour period between 0700ChST (0800LST) and 1100 ChST (1200 ChST). No damage or injuries were reported during this event.

Wider weather episode

Heavy rainfall across Pohnpei brought 3 to 5 inches across the island with most of the rain falling over a 4 to 5 hour period.

View location on OpenStreetMap → (6.9357, 158.1271)

Source: NOAA Storm Events Database, event_id 1247072. Narrative written by the NWS forecast office that issued the report.