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Severe · Flood WatchActive alert

Flood Watch issued October 2 at 10:56PM ChST until October 5 at

Affecting Guam; Rota; Tinian; Saipan

In effect until: Oct 2, 2026, 9:00 PM

Guam; Rota; Tinian; Saipan

Possible impact zone; conditions develop through 9:00 PM.

You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.

Read the original bulletin (official text)
* WHAT...Flash flooding caused by excessive rainfall continues to be
possible.

* WHERE...Guam, Rota, Tinian, and Saipan.

* WHEN...Through late Sunday night.

* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Flooding may occur in poor drainage and urban areas.

* ADDITIONAL DETAILS...
- Tropical Storm Choi-wan (26W) is nearly stationary and is
expected to pivot north-northeast through the northern CNMI
through the weekend near Pagan and Agrihan. To the south of
Choi-wan, surging monsoon inflow will maintain wet conditions
into early next week, resulting in 4 to 6 inches of rain for Guam
and Rota, and 5 to 8 inches for Tinian and Saipan during the
Watch period.
- http://www.weather.gov/safety/flood
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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™