Typhoon Warning issued October 17 at 9:19PM ChST by NWS Tiyan GU

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

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...TYPHOON CHAMPI NOW A DANGEROUS CATEGORY 4 MOVING WEST TOWARDS GUAM COASTAL WATERS... .NEW INFORMATION... Guam is now in Condition of Readiness 1 as of 1 PM ChST. Rota is now in Typhoon Condition of Readiness 1 as of 5 PM ChST. Saipan and Tinian remain in Typhoon Condition of Readiness 3. .AREAS AFFECTED... This local statement provides information and recommended actions for people on Guam and on Rota, Tinian and Saipan in the Northern Marianas. .Watches/Warnings... A Typhoon Warning continues for Guam and Rota. A Tropical Storm Warning and a Typhoon Watch continues for Tinian and Saipan. A Flood Watch is in effect for Rota, Tinian and Saipan in the Northern Marianas. Please listen closely for any Flood Warnings that might be in effect for your area. A Flash Flood Warning is now in effect for Guam. Please check the latest public and marine forecasts for detailed information about additional hazards. .STORM INFORMATION... At 7 PM ChST...the center of Typhoon Champi (29W) was located near latitude 12.6N...longitude 146.7E. This was about 140 miles east-southeast of Guam. Storm motion was west, 280 degrees, at 15 mph. Storm intensity was 130 mph. This general forecast track will take Champi just south of Guam as a Category 4 typhoon as it intensifies further the next few days. .SITUATION OVERVIEW... Typhoon Champi (29W) has been undergoing rapid intensification today. As a result it is now a dangerous category 4 typhoon. It is expected to pass a little south of Guam as a super typhoon within the next 12 hours. This may potentially bring devastating wind conditions to much of Guam during passage. .PRECAUTIONARY/PREPAREDNESS ACTIONS... Dangerous typhoon conditions will soon occur. Everyone should be quickly moving to safety within their home or shelter. Once inside, ensure all windows and doors are secured before dangerous winds arrive. Move to an interior room on the lowest floor. Do not go outside into the eye of typhoons. Within the eye, conditions can become temporarily calm, which can be misleading. Once the eye passes, the winds will change direction and quickly increase again to dangerous speeds. Be aware that the loss of commercial power can happen quickly. Keep emergency gear handy.

Event time

Oct 17, 2026, 11:19 AM UTC

Source last updated

Oct 17, 2026, 11:19 AM UTC

Current version retrieved

Oct 17, 2026, 11:30 AM UTC

Provider

NWS — active weather alerts (Storm)

Location

GU, US

Severity

Extreme

area

Guam

event

Typhoon Warning

onset

2026-10-17T21:19:00+10:00

states

["GU"]

urgency

Immediate

certainty

Likely

effective

2026-10-17T21:19:00+10:00

message id

urn:oid:2.49.0.1.840.0.9a5870c872448e6423b4191a0b6d1863ee7a2d3a.001.1

references

["urn:oid:2.49.0.1.840.0.f3ac425658ce0c4107e5c8d6fda782a704256e61.001.1"]

instruction

Dangerous typhoon conditions will soon occur. Everyone should be quickly moving to safety within their home or shelter. Once inside, ensure all windows and doors are secured before dangerous winds arrive. Move to an interior room on the lowest floor. Do not go outside into the eye of typhoons. Within the eye, conditions can become temporarily calm, which can be misleading. Once the eye passes, the winds will change direction and quickly increase again to dangerous speeds. Be aware that the loss of commercial power can happen quickly. Keep emergency gear handy.

message type

Update

location basis

Approximate: centers of the NWS zones listed in the alert

freshness minutes

60

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

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