First published · Last updated
Severe Thunderstorm Warning — NWS St Louis MO (Sep 18, 2026)
The National Weather Service office in St. Louis, MO issued a Severe Thunderstorm Warning on September 18 at 5:27 PM CDT, valid until September 18 at 6:00 PM CDT (source published 2026-09-18T22:27:00Z).
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
- 10/10
- Geographic reach
- 4/10
- Global importance
- 7/10
- Impact magnitude
- 4/10
- Positivity
- 2/10
- Urgency
- 9/10
Why it matters
A current severe thunderstorm warning indicates an imminent hazardous weather event for people and activities in the St. Louis area during the stated time window; affected individuals should follow local guidance and safety procedures.

