Flash flooding: Guam

Typhoon Warning issued October 17 at 3:06PM ChST by NWS Tiyan GU

...CHAMPI UPGRADED TO TYPHOON AND BARRELING TOWARD THE MARIANAS...

.NEW INFORMATION...
None.

.AREAS AFFECTED...
This local statement provides information and recommended action for
people on Guam, and people on Rota, Tinian and Saipan in the
Commonwealth of the Northern Marianas.

.Watches/Warnings...
A Typhoon Warning continues for Guam and Rota.

A Tropical Storm Warning and a Typhoon Watch continue for Tinian and
Saipan.

A Flood Watch is in effect for all of Guam and the Northern
Marianas. Please listen closely for any Flood Warnings that might
be in effect for your area.

Please check the latest public and marine forecasts for detailed
information about additional hazards.

.STORM INFORMATION...
At 100 PM ChST, the center of Typhoon Champi (29W) was located near
latitude 12.5N and longitude 148.0E. This was about 225 miles east-
southeast of Guam. Storm motion was west-northwest, 290 degrees,
at 18 mph. Storm intensity has increased to 100 mph, making it a
Category 2 typhoon. This general forecast track will take Champi
just south of Guam as a Category 3 typhoon as it intensifies
further the next few days.

.SITUATION OVERVIEW...
Showers and winds will continue to steadily increase the rest of
today, to then deteriorate significantly tonight as newly upgraded
Typhoon Champi continues to move in from the east-southeast. Champi
is undergoing a period of rapid intensification, strengthening
further as the day goes on. The most recent storm tracks continue to
indicate Champi passing either south, or over, Guam Sunday morning,
which may potentially bring devastating wind conditions to much of
Guam during passage. Winds and rain will come in rapidly, with winds
becoming dangerous and life threatening very soon after onset. Do not
let a false sense of normalcy now dictate your actions tomorrow;
prepare NOW!

Make the final preparations to protect life and property. Rush to
completion the hardening of your home or business by closing shutters
and bracing garage doors.

If evacuating, leave as soon as possible. Guard against being stuck
out on roadways when dangerous winds and heavy rains arrive. Again,
do not stay in a metal roof or container home. Remember, pets are not
allowed in most official shelters, so check ahead with your intended
shelter.

If staying in a home, turn the refrigerator to maximum cold and keep
it closed. Turn off propane tanks and unplug small appliances. Fill
the bathtub with water in case the tap water becomes unavailable
after the storm. This is for cleaning and flushing purposes. Do not
drink it.

• warning-continued · 2026-10-17T05:06:00.000Z
• warning-continued · 2026-10-16T23:13:00.000Z
• warning-continued · 2026-10-16T17:03:00.000Z
• warning-continued · 2026-10-16T11:43:00.000Z
• warning-issued · 2026-10-16T06:11:00.000Z