First published Oct 15, 2026, 9:45:15 PM UTC · Last updated Oct 15, 2026, 9:45:15 PM UTC

Flood Watch issued October 16 at 3:00AM ChST until October 18 at 4:00PM ChST by NWS Tiyan GU

The NWS Flood Watch covers Guam, Rota, Tinian, and Saipan through October 18 at 4:00 PM ChST. The source says 6 to 12 inches of rain are possible, with flooding possible in low-lying, flood-prone, poor-drainage, and urban areas.

Illustrative image: Waterfront and downtown Louisville, Kentucky , USA , on Ohio River at mile 604 View looking south-southwest from Clark (2nd St.) Bridge July 1, 1995 — William Alden III/Wikimedia Commons, CC BY-SA 4.0

Why it matters

The watch identifies possible flooding across several islands through Sunday afternoon.

Categories: severe-weather-and-natural-disasters

Generated scores

Scores are based on the cited reporting and use a 1–10 scale. Read the methodology.

Confidence: 7/10How certain the assessment is based on the clarity and evidence in the cited reporting.
Geographic reach: 3/10How widely the event reaches, from a local area (1) to worldwide impact (10).
Global importance: 3/10The event's broader significance, from limited importance (1) to major global importance (10).
Impact magnitude: 3/10The scale or severity of the real-world impact, from minor (1) to extreme (10).
Positivity: 3/10How harmful or beneficial the event is, from strongly harmful (1) to strongly positive (10).
Urgency: 5/10How time-sensitive the event is, from low urgency (1) to immediate attention needed (10).

Primary official sources

U.S. National Weather Service Alerts NWS Flood Watch issued October 16 at 3:00AM ChST until October 18 at 4:00PM ChST by NWS Tiyan GU

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