EXTREME WIND WARNING

Extreme Wind Warning: Guam, GU

Extreme Wind Warning issued October 18 at 3:26AM ChST until October 18 at 5:30AM ChST by NWS Tiyan GU · EXPIRED

The National Weather Service office in Tiyan, GU issued an Extreme Wind Warning for Guam, GU on Saturday, October 17, 2026. It has expired.

WarningExtreme Wind Warning

StatusExpired

Issued byNWS Tiyan, GU

Area1 area(s)

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What the Weather Service said

EWWGUM The National Weather Service in Tiyan Guam has issued a * Extreme Wind Warning for... Southern Guam in Guam... * Until 530 AM ChST. * At 326 AM ChST, Andersen AFB Doppler radar indicated extreme winds, associated with the northern eyewall of Typhoon Champi, were moving onshore from Talofofo southward, moving west at 15 mph. THIS IS AN EXTREMELY DANGEROUS AND LIFE-THREATENING SITUATION! * Locations impacted include... Talofofo, Inarajan, Merizo, Santa Rita, and Umatac.

What to do

Destructive winds of 115 to 135 mph will spread across far southern Guam, producing swaths of significant to catastrophic damage, particularly to non-concrete structures. TAKE COVER NOW! The safest place to be during a major typhoon passage is in a reinforced interior room away from windows. If you are not in a fully-concrete structure, get under a table or other piece of sturdy furniture. Use mattresses, blankets or pillows to cover your head and body. Remain in place through the passage of these life-threatening conditions.

What a extreme wind warning means

Sustained winds of 115 mph (185 km/h) or more, usually from the eyewall of a major hurricane, are expected within the hour. Take shelter in an interior room as for a tornado.

Watch or warning?

A watch means conditions are right for a hazard to develop: be prepared. A warning means it is happening or about to happen: take action now. Advisories are for less serious hazards that still call for caution.

Official, current information: weather.gov forecast for this area. See every U.S. warning that day.

Did you know?

The widest tornado. The widest tornado on record, near El Reno, Oklahoma, in 2013, was about 2.6 miles (4.2 km) across.

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