NWS Tiyan GUFF.W 0028September 6, 2026
Flash Flood Warning: Guam County, GU
The National Weather Service office in Tiyan issued a flash flood warning for Guam County in Guam, which was in force until 8:45 p.m. local time on September 6. It was the 28th flash flood warning the NWS office in Tiyan issued in 2026.
ExpiredWarning
Issued7:15 p.m. UTC+10, September 6, 2026
In force7:15 p.m. UTC+10, September 6, 2026
Expired8:45 p.m. UTC+10, September 6, 2026
In force for 1.5 hours; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, Tiyan GU
- Area
- Guam County
- State
- Guam
- Level
- Warning
- Issued
- 7:15 p.m. UTC+10, September 6, 2026
- Expires
- 8:45 p.m. UTC+10, September 6, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Immediate
- VTEC event
- PGUM FF.W 0028
- Official source
- National Weather Service: the notice at its source
Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.
The notice as issued
FFWGUM The National Weather Service in Tiyan has issued a * Flash Flood Warning for... Southwestern Guam... * Until 845 PM ChST. * At 715 PM ChST, Doppler radar indicated heavy showers, with the potential for thunderstorms, producing heavy rain across the warned area. Between 2 and 3 inches of rain have fallen. Additional rainfall amounts of 1 to 3 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by heavy showers and possible thunderstorms. SOURCE...Radar indicated. IMPACT...Flash flooding of small creeks and streams, urban areas, highways and streets, as well as other poor drainage and low-lying areas.
What the agency told people to do
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads. Report flooding to law enforcement. Please report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely.
Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.