NWS Tiyan GUFF.W 0032September 19, 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 9:45 p.m. local time on September 19. It was the 32nd flash flood warning the NWS office in Tiyan issued in 2026.
ExpiredWarning
Issued8:49 p.m. UTC+10, September 19, 2026
In force8:49 p.m. UTC+10, September 19, 2026
Expired9:45 p.m. UTC+10, September 19, 2026
In force for 56 minutes; 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
- 8:49 p.m. UTC+10, September 19, 2026
- Expires
- 9:45 p.m. UTC+10, September 19, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Immediate
- VTEC event
- PGUM FF.W 0032
- 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 945 PM ChST. * At 849 PM ChST, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 2 inches of rain have fallen in a short amount of time. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar indicated. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Yona, Talofofo, Inarajan, Merizo, Santa Rita and Umatac.
What the agency told people to do
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
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.