Tropical Storm Warning Issued for Guam and Northern Marianas
This alert is no longer in effect.
NOAA issued it on April 13, 2026, 4 months ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
A Tropical Storm Warning is in effect for Guam and parts of the Northern Marianas due to Super Typhoon Sinlaku, with strong winds and heavy rain expected as the storm approaches.
Read this weather record in 30 seconds
- Record type
- Tropical Storm Warning
- Affected area
- Guam and Northern Marianas
- Issued
- April 13, 2026
- Issuing authority
- NWS Tiyan GU
Storm notices can cover different combinations of wind, hail, lightning, and rainfall. Use the original notice for the hazards and boundaries attached to this specific record.
Record status: historical. It was issued 4 months ago; use the issuing agency's live warning service for current conditions in Guam and Northern Marianas.
Tropical Storm Warning in Guam and Northern Marianas
Alert Details
A Tropical Storm Warning has been issued by NWS Tiyan GU. It is effective from April 13, 2026, at 3:24 PM ChST.
Affected Areas
The warning affects Guam and the Northern Marianas, including specific areas such as Pagan, Alamagan, Agrihan, Rota, Tinian, and Saipan.
What You Should Do
Complete preparations for the protection of life and property immediately. Bring items to a shelter including a first aid kit, medicines, prescriptions, baby food, diapers, games, books, toiletries, a battery-powered radio, cell phone, flashlights with extra batteries, blankets, personal identification, copies of key papers, cash, and credit cards. Cover all windows and doors with shutters or plywood, move patio furniture and other loose objects indoors, brace exterior doors, and comply with any evacuation orders. If you live in a metal roof or container home, or in a surge zone or flood-prone area, evacuate to a designated shelter or a sturdy home outside evacuation zones.
Expected Conditions
Super Typhoon Sinlaku has winds of 180 mph and is located about 230 miles east-southeast of Guam, moving west-northwest at 8 mph. It is expected to gradually weaken but still cross the Marianas as a category 4 or 5 typhoon, bringing heavy showers, thunderstorms, and strong winds.
Timeline
The alert is effective from April 13, 2026, at 3:24 PM ChST and expires on April 13, 2026, at 11:30 PM ChST.
Original source: NOAA Official Notice ↗
Related Weather Alerts
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Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (1,473 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to April 13, 2026.
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