NOAA NWS / Event history
Typhoon Warning issued October 16 at 4:51PM ChST by NWS Tiyan GU
Typhoon Warning · Guam Coastal Waters; Rota Coastal Waters. Extreme; likely; urgency: immediate.
- Bulletin issued
- 16 October 2026 at 06:51 UTC
- First saved by us
- 16 October 2026 at 07:02 UTC
- Last included in a daily record
- 16 October 2026
The linked daily edition preserves what we captured that UTC day; this event page is not a live warning.
- Source classification
- Extreme · Source alert
A recent feed check does not mean a new observation. This page preserves source records; it does not establish current safety or warning status.
- Issuer / area
- NWS Tiyan GU · Guam Coastal Waters; Rota Coastal Waters
- Certainty / urgency
- Likely / Immediate
- Message expiry (not hazard end)
- 16 October 2026 at 21:00 UTC
- Forecast onset / end
- 16 October 2026 at 06:51 UTC / Not supplied
Archived official description
* WHAT....Typhoon conditions, including winds of 64 knots or more are expected. * WHERE...Guam Coastal Waters and Rota Coastal Waters. * WHEN...Onset of damaging winds beginning Saturday night. Onset of destructive winds Sunday morning. Damaging winds will continue into at least Sunday night, possibly longer if conditions warrant. * IMPACTS...Destructive winds will produce dangerous seas that could damage, capsize or sink vessels, along with drastically reducing visibilities in heavy rain. * ADDITIONAL DETAILS...Tropical Storm Champi (29W) continues to move quickly toward the Marianas. The exact path of 29W remains subject to change. However, guidance supports a passage through Guam coastal waters, with damaging winds moving in Saturday night and lasting into at least Sunday night. Champi is expected to strengthen further today and Saturday as it approaches, then move through the region as a typhoon Sunday morning. Seas will quickly rise, with significant sea heights reaching as high as 35 feet during closest passage of Champi. Dangerous sea conditions may continue into Monday.
Instructions in this archived message
Prepare for the passage of a typhoon Sunday morning. Secure all vessels. Conditions are expected to be catastrophic for small craft, and extremely dangerous for any vessels of larger size. As Tropical Storm Champi approaches, stay in safe harbor.
The saved record
What changed
0 updates · 1 first record
Each update compares two versions we saved. This may not include every update from the source. A missing report does not mean an event has ended.
First saved record · 16 October 2026 at 07:02 UTC
Saved by us
Starting point
First saved record
Our first saved version of Typhoon Warning issued October 16 at 4:51PM ChST by NWS Tiyan GU. We have no earlier saved version to compare.
Bulletin issued: 16 October 2026 at 06:51 UTC
View saved version 1
Original saved fields, unchanged. This is our record, not an archived copy of the external webpage.
{ "id": "nws:9278c3cfaf5f5dc3220189f9", "authorityId": "urn:oid:2.49.0.1.840.0.b97b0d01856d55ff43e9b9c195116bedd6cb2b0e.001.2", "sender": "w-nws.webmaster@noaa.gov", "references": [], "category": "weather", "title": "Typhoon Warning issued October 16 at 4:51PM ChST by NWS Tiyan GU", "eventType": "Typhoon Warning", "occurredAt": "2026-10-16T06:51:00.000Z", "issuedAt": "2026-10-16T06:51:00.000Z", "timeBasis": "Bulletin issued", "effectiveAt": "2026-10-16T06:51:00.000Z", "onsetAt": "2026-10-16T06:51:00.000Z", "expiresAt": "2026-10-16T21:00:00.000Z", "forecastEndAt": null, "severity": "Extreme", "urgency": "Immediate", "certainty": "Likely", "messageType": "Alert", "status": "Source alert", "place": "Guam Coastal Waters; Rota Coastal Waters", "coordinates": null, "issuer": "NWS Tiyan GU", "summary": "Typhoon Warning · Guam Coastal Waters; Rota Coastal Waters. Extreme; likely; urgency: immediate.", "description": "* WHAT....Typhoon conditions, including winds of 64 knots or more\nare expected.\n\n* WHERE...Guam Coastal Waters and Rota Coastal Waters.\n\n* WHEN...Onset of damaging winds beginning Saturday night. Onset\nof destructive winds Sunday morning. Damaging winds will\ncontinue into at least Sunday night, possibly longer if\nconditions warrant.\n\n* IMPACTS...Destructive winds will produce dangerous seas that\ncould damage, capsize or sink vessels, along with drastically\nreducing visibilities in heavy rain.\n\n* ADDITIONAL DETAILS...Tropical Storm Champi (29W) continues to\nmove quickly toward the Marianas. The exact path of 29W remains\nsubject to change. However, guidance supports a passage through\nGuam coastal waters, with damaging winds moving in Saturday\nnight and lasting into at least Sunday night. Champi is expected\nto strengthen further today and Saturday as it approaches, then\nmove through the region as a typhoon Sunday morning. Seas will\nquickly rise, with significant sea heights reaching as high as\n35 feet during closest passage of Champi. Dangerous sea\nconditions may continue into Monday.", "instruction": "Prepare for the passage of a\ntyphoon Sunday morning. Secure all vessels. Conditions are\nexpected to be catastrophic for small craft, and extremely\ndangerous for any vessels of larger size. As Tropical Storm Champi\napproaches, stay in safe harbor.", "url": "https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.b97b0d01856d55ff43e9b9c195116bedd6cb2b0e.001.2", "source": "nws", "sourceName": "NOAA NWS" }Visit the external source ↗The external page may have changed since this version was saved.