NOAA NWS / Event history

Typhoon Watch issued October 15 at 2:45PM ChST by NWS Tiyan GU

Typhoon Watch · Guam Coastal Waters; Rota Coastal Waters; Tinian Coastal Waters; Saipan Coastal Waters. Severe; possible; urgency: future.

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Bulletin issued: 15 October 2026 at 04:45 UTC
First saved by us: 15 October 2026 at 04:58 UTC
Last included in a daily record: 15 October 2026
The linked daily edition preserves what we captured that UTC day; this event page is not a live warning.
Source classification: Severe · 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; Tinian Coastal Waters; Saipan Coastal Waters
Certainty / urgency: Possible / Future
Message expiry (not hazard end): 15 October 2026 at 13:00 UTC
Forecast onset / end: 15 October 2026 at 04:45 UTC / Not supplied

Archived official description

* WHAT...Typhoon conditions, including winds of 74 mph or more are possible within the next 48 hours. * WHERE...Guam, Rota, Tinian and Saipan Coastal Waters. * WHEN...Through 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 Depression 29W is now moving toward the Marianas. The exact path of 29W remains subject to change, however, it is expected to pass through the coastal waters over the weekend. TD 29W is expected to begin to strengthen Friday as it approaches, moving through the region as at least a Category 1 typhoon, but more likely stronger.

Instructions in this archived message

Mariners should pay close attention to the marine forecast and consider wind and sea conditions in planning. Remain in port, seek safe harbor and/or secure your vessel for severe wind and seas.

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 · 15 October 2026 at 04:58 UTC

Saved by us

15 October 2026 at 04:58 UTC

Starting point

First saved record

Our first saved version of Typhoon Watch issued October 15 at 2:45PM ChST by NWS Tiyan GU. We have no earlier saved version to compare.

Bulletin issued: 15 October 2026 at 04:45 UTC

View saved version 1

Original saved fields, unchanged. This is our record, not an archived copy of the external webpage.

{
  "id": "nws:8a6ac876c6c7a683a3c3f650",
  "authorityId": "urn:oid:2.49.0.1.840.0.696e86fa32dcb9b0503070bd2e502d69ed2057c2.001.1",
  "sender": "w-nws.webmaster@noaa.gov",
  "references": [],
  "category": "weather",
  "title": "Typhoon Watch issued October 15 at 2:45PM ChST by NWS Tiyan GU",
  "eventType": "Typhoon Watch",
  "occurredAt": "2026-10-15T04:45:00.000Z",
  "issuedAt": "2026-10-15T04:45:00.000Z",
  "timeBasis": "Bulletin issued",
  "effectiveAt": "2026-10-15T04:45:00.000Z",
  "onsetAt": "2026-10-15T04:45:00.000Z",
  "expiresAt": "2026-10-15T13:00:00.000Z",
  "forecastEndAt": null,
  "severity": "Severe",
  "urgency": "Future",
  "certainty": "Possible",
  "messageType": "Alert",
  "status": "Source alert",
  "place": "Guam Coastal Waters; Rota Coastal Waters; Tinian Coastal Waters; Saipan Coastal Waters",
  "coordinates": null,
  "issuer": "NWS Tiyan GU",
  "summary": "Typhoon Watch · Guam Coastal Waters; Rota Coastal Waters; Tinian Coastal Waters; Saipan Coastal Waters. Severe; possible; urgency: future.",
  "description": "* WHAT...Typhoon conditions, including winds of 74 mph or more are\npossible within the next 48 hours.\n\n* WHERE...Guam, Rota, Tinian and Saipan Coastal Waters.\n\n* WHEN...Through at least Sunday night, possibly longer if conditions\nwarrant.\n\n* IMPACTS...Destructive winds will produce dangerous seas that could\ndamage, capsize or sink vessels, along with drastically reducing\nvisibilities in heavy rain.\n\n* ADDITIONAL DETAILS...Tropical Depression 29W is now moving toward\nthe Marianas. The exact path of 29W remains subject to change,\nhowever, it is expected to pass through the coastal waters over the\nweekend. TD 29W is expected to begin to strengthen Friday as it\napproaches, moving through the region as at least a Category 1\ntyphoon, but more likely stronger.",
  "instruction": "Mariners should pay close attention to the marine forecast and\nconsider wind and sea conditions in planning. Remain in port, seek\nsafe harbor and/or secure your vessel for severe wind and seas.",
  "url": "https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.696e86fa32dcb9b0503070bd2e502d69ed2057c2.001.1",
  "source": "nws",
  "sourceName": "NOAA NWS"
}

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