# Flood Advisory: Guam, GU — retained record

> Retained us-gov-api record from us-gov-api:noaa-weather.

Canonical: https://highsignal.app/data/records/43fa7cba08061855

[← sources](https://highsignal.app/data)


source: [us-gov-api](https://highsignal.app/data/us-gov-api) (us-gov-api:noaa-weather)  published 2026-09-20 11:09 ingested 2026-09-20 02:44

[original source ↗](http://www.weather.gov/)

## extract

Flood Advisory — Guam, GU
Severity: Minor. Certainty: Likely.
* WHAT...Urban area and small stream flooding caused by excessive
rainfall is expected.

* WHERE...Guam...

* WHEN...Until 115 PM ChST.

* IMPACTS...Minor flooding in low-lying and poor drainage areas.

* ADDITIONAL DETAILS...
- At 1107 AM ChST, Doppler radar indicated heavy rain due to
thunderstorms. This  will cause urban and small stream flooding.
Between 0.5 and 0.8 inches of rain have fallen.
- Additional rainfall amounts of 1.5 to 3 inches are expected over
the area. This additional rain will result in minor flooding.
- Current heavy showers are over the southern and northern half of
Guam but are expected to expand across the island.
- http://www.weather.gov/safety/flood

## retained text

The historical document was shared with another weather alert and cannot be attributed to this record. The original extract is preserved above; the exact alert link was not retained.