First published 9/19/2026, 2:57:15 AM · Last updated 9/19/2026, 2:57:15 AM

Flood Watch issued September 18 at 9:49PM CDT until September 19 at 1:00PM CDT by NWS Chicago IL

The National Weather Service Chicago issued a Flood Watch starting Sept 18 at 9:49 PM CDT (2026-09-19T02:49:00Z) through Sept 19 at 1:00 PM CDT for the Chicago, IL area, indicating conditions that could lead to flooding during that period.

Categories: severe-weather-and-natural-disasters, travel-and-transportation

Generated scores

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

Confidence: 9/10How 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: 6/10The event's broader significance, from limited importance (1) to major global importance (10).
Impact magnitude: 5/10The 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: 7/10How time-sensitive the event is, from low urgency (1) to immediate attention needed (10).

Why it matters

A Flood Watch signals elevated risk of flooding that can disrupt travel, damage property, and create safety hazards for people in the affected area. Residents and travelers should monitor forecasts and be prepared for localized flooding.

Location

Sources

Flood Watch issued September 18 at 9:49PM CDT until September 19 at 1:00PM CDT by NWS Chicago IL

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