First published 9/19/2026, 11:37:15 AM · Last updated 9/19/2026, 11:37:15 AM

Flood Advisory issued September 19 at 9:29PM ChST until September 19 at 10:30PM ChST by NWS Tiyan GU

National Weather Service Tiyan (Guam) issued a Flood Advisory effective September 19 at 9:29 PM ChST (2026-09-19T11:29:00Z) through 10:30 PM ChST for Guam. Advisory indicates localized flooding risk over a short duration; no precise coordinates provided in source.

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: 8/10How 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: 5/10The 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: 2/10How harmful or beneficial the event is, from strongly harmful (1) to strongly positive (10).
Urgency: 8/10How time-sensitive the event is, from low urgency (1) to immediate attention needed (10).

Why it matters

Localized flooding can cause hazardous driving conditions, inundate low-lying areas, and disrupt short-term travel and outdoor activities across Guam. Residents and travelers should take standard flood precautions.

Location

Sources

Flood Advisory issued September 19 at 9:29PM ChST until September 19 at 10:30PM ChST by NWS Tiyan GU

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