Severe Flood ● Closed
Flood Watch issued October 1 at 2:57AM ChST until October 5 at 4:00AM ChST by NWS Tiyan GU, United States of America
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* WHAT...Flash flooding caused by excessive rainfall is possible.
* WHERE...Saipan and Tinian.
* WHEN...From this evening 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...
- Heavy rainfall associated with Tropical Storm 26W will impact
Saipan and Tinian late this evening through Sunday night.
Additionally, a monsoon surge south of TS 26W will keep wet
conditions across Saipan and Tinian into next week. Between 4 and
8 inches of rain is expected during this watch period with
locally higher amounts possible.
- http://www.weather.gov/safety/flood
Measurements
| Coordinates | 39.9645, -100.8105 |
|---|---|
| Region | Tinian; Saipan |
| Location Precision | country |
| Issuing Authority | United States of America — us-noaa-nws-en |
| Cap Urgency | Future |
| Cap Certainty | Possible |
| Cap Expires | 2026-10-01T18:00:00+10:00 |
Official source
Warnings courtesy of the issuing national meteorological service, via the WMO Alert Hub.
This is an official warning issued by the authority named above. Follow its instructions and those of your local emergency services.
Severity as published by WMO Alert Hub (national weather services).
View original reportThis event as JSON · API and licence
Source updated 19 days ago (Sep 30, 2026 16:58 UTC) · we last heard from WMO Alert Hub (national weather services) 41 seconds ago
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About this location
The agency did not publish coordinates for this warning. The pin is the centre of the country, not the location of the event — read the area name, not the map, for where it applies.
Area as the agency stated it: Tinian; Saipan
Official authorities in United States
If you are there, these are the bodies whose instructions apply. This site is not an emergency service and does not issue warnings.
More for United States →What to do
Follow the instructions issued by WMO Alert Hub (national weather services) and your local emergency services. The guidance below is background.
Flood preparation, evacuation decisions, and the dangers of driving or walking through floodwater.
Open Flood Safety Guide →Earlier flood events in United States
Severe and extreme events of the same kind, before this one. Listed for scale, not because they are connected to it.
Nearby & related events
Disclaimer: figures are automatic feeds from the named agencies and may be revised. Do not use this page for life-safety decisions — follow official local emergency services.