NWS Tiyan GUFF.W 0033October 2, 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 11:00 a.m. local time on October 2. It was the 33rd flash flood warning the NWS office in Tiyan issued in 2026.
ExpiredWarning
In force for 17 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
- 10:43 a.m. UTC+10, October 2, 2026
- Expires
- 11:00 a.m. UTC+10, October 2, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Immediate
- VTEC event
- PGUM FF.W 0033
- Official source
- National Weather Service: the notice at its source
Every warning type in GuamFlash Flood Warning: what it means, and the states that get the most
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 extended the * Flash Flood Warning for... Southwestern Guam... * Until 1100 AM ChST. * At 1043 AM ChST, Doppler radar indicated heavy rain across the warned area. Between 1.2 and 2 inches of rain have fallen. Additional rainfall amounts of 0.4 to 0.8 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by heavy rain. 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... Talofofo, Inarajan, Merizo and Umatac.
What the agency told people to do
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Move to higher ground now. Act quickly to protect your life. Be aware of your surroundings and do not drive on flooded roads.
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.