# Special Marine Warning: Guam Coastal Waters — retained record

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

Canonical: https://highsignal.app/data/records/cf01aadab853f6d5

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


source: [us-gov-api](https://highsignal.app/data/us-gov-api) (us-gov-api:noaa-weather)  published 2026-09-09 12:11 ingested 2026-09-09 02:50

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

## extract

Special Marine Warning — Guam Coastal Waters
Severity: Severe. Certainty: Likely.
SMWGUM

THE NATIONAL WEATHER SERVICE IN TIYAN GUAM HAS ISSUED A

* SPECIAL MARINE WARNING FOR...
GUAM COASTAL WATERS...

* UNTIL 1245 PM CHST.

* AT 1208 PM CHST...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING
WATERSPOUTS WAS LOCATED SOUTHWEST OF GUAM MOVING SOUTHWEST AT 5
KNOTS.

HAZARD...WATERSPOUTS AND WIND GUSTS 34 KNOTS OR GREATER.

SOURCE...MARINE WEATHER SPOTTER.

IMPACT...WATERSPOUTS CAN EASILY OVERTURN BOATS AND CREATE LOCALLY

HAZARDOUS SEAS. SMALL CRAFT COULD BE DAMAGED IN BRIEFLY

HIGHER WINDS AND SUDDENLY HIGHER WAVES.

* THE SEVERE THUNDERSTORM WILL REMAIN OVER MAINLY OPEN WATERS.

## 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The historical document was shared with another weather alert and cannot be attributed to this record.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.