NWS Tiyan GUFF.W 0021July 6, 2026
Flash Flood Warning: Guam County and Rota, GU and MP
The National Weather Service office in Tiyan issued a flash flood warning for Guam County and Rota in Guam, Northern Mariana Islands, which was in force until 6:15 p.m. local time on July 6. It was the 21st flash flood warning the NWS office in Tiyan issued in 2026.
ExpiredWarning
Issued4:21 p.m. UTC+10, July 6, 2026
In force4:21 p.m. UTC+10, July 6, 2026
Expired6:15 p.m. UTC+10, July 6, 2026
In force for 1.9 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 and Rota
- State
- Guam
- Level
- Warning
- Issued
- 4:21 p.m. UTC+10, July 6, 2026
- Expires
- 6:15 p.m. UTC+10, July 6, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Immediate
- VTEC event
- PGUM FF.W 0021
- 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... Guam... Rota... * Until 615 PM ChST. * At 421 PM ChST, satellite estimates indicate heavy rain across the warned area. Flash flooding is already occurring. HAZARD...Flash flooding caused by heavy rain. SOURCE...Satellite estimates. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, and streets as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Dededo, Tamuning, Yigo, Mangilao, Chalan Pago-Ordot, Barrigada, Yona, Hagatna Heights, Andersen AFB, Talofofo, Mongmong-Toto-Maite, Sinajana, Inarajan, Asan, Merizo, Piti, Santa Rita, Umatac, Sinapalo and Songsong.
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. Stay away or be swept away. River banks and culverts can become unstable and unsafe.
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.