Typhoon Watch issued October 18 at 4:40AM ChST by NWS Tiyan GU
Official severe-weather alerts, warning areas, and disaster updates.
expired · active · official-source
Updated for compact wind radii, reducing winds for Rota and Guam. ...TYPHOON CHAMPI NOW A DANGEROUS CATEGORY 4 MOVING WEST INTO GUAM COASTAL WATERS... .NEW INFORMATION... None. .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 4 AM ChST...the center of Typhoon Champi (29W) was located near latitude 13.1N...longitude 144.9E. This was about 25 miles southeast of Guam. Storm motion was west, 280 degrees, at 15 mph. Storm intensity was 140 mph. This general forecast track will take Champi about 15 miles south of Guam as a Category 4 typhoon as it intensifies further the next few days west of the Marianas. .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... Take small loose objects indoors. Identify suitable shelter. Stock up a few days worth of food and water. If no concrete shelter is available look for a cave or something similar. Take action to protect food crops or other possessions as appropriate.
- Event time
- Source last updated
- Current version retrieved
- Provider
- NWS — active weather alerts (Storm)
- Location
- MP, US
- Severity
- Severe
- area
- Tinian; Saipan
- event
- Typhoon Watch
- onset
- 2026-10-18T04:40:00+10:00
- states
- ["MP"]
- urgency
- Future
- certainty
- Possible
- effective
- 2026-10-18T04:40:00+10:00
- message id
- urn:oid:2.49.0.1.840.0.055e621cf1da043247c479ddca8241afb4380bd2.003.2
- references
- ["urn:oid:2.49.0.1.840.0.9a5870c872448e6423b4191a0b6d1863ee7a2d3a.003.2","urn:oid:2.49.0.1.840.0.8f96da8543860aa3cc71d31b3156d80289ac78dd.003.2"]
- instruction
- Take small loose objects indoors. Identify suitable shelter. Stock up a few days worth of food and water. If no concrete shelter is available look for a cave or something similar. Take action to protect food crops or other possessions as appropriate.
- message type
- Update
- location basis
- Approximate: centers of the NWS zones listed in the alert
- freshness minutes
- 60
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Update history (2 recent revisions)
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