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Flash Flood Warning issued October 10 at 11:31AM ChST until October 10 at 12:30PM ChST by NWS Tiyan GU

Official severe-weather alerts, warning areas, and disaster updates.

expired · active · official-source

FFWGUM The National Weather Service in Tiyan has extended the * Flash Flood Warning for... Southern Guam... * Until 1230 PM ChST. * At 1131 AM ChST, Doppler radar and automated rain gauges indicated heavy rain falling across the warned area. Between 2 and 4 inches of rain have fallen. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by heavy rain. SOURCE...Radar and automated gauges. 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... Chalan Pago-Ordot, Yona, Talofofo, Inarajan, Asan, Merizo, Piti, Santa Rita and Umatac. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.

Event time
Source last updated
Retrieved by TradePilot
Provider
NWS — active weather alerts (Storm)
Location
GU, US
Severity
Severe
area
Guam, GU
event
Flash Flood Warning
onset
2026-10-10T11:31:00+10:00
states
["GU"]
urgency
Immediate
certainty
Likely
effective
2026-10-10T11:31:00+10:00
message id
urn:oid:2.49.0.1.840.0.d7d49bcbc7a0b955230d2ba6cf83cea1d9ff2d64.001.1
references
["urn:oid:2.49.0.1.840.0.72805ebd354cd977741b4ff6c833186c0957edbf.001.1","urn:oid:2.49.0.1.840.0.865b9c6943b5e1fbd5b8ddbf72d927a65231d6ac.001.1"]
instruction
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
message type
Update
freshness minutes
60
Read the official source

Source use policy · US government work (17 U.S.C. 105)

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Update history (2 recent revisions)

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