First published 9/18/2026, 9:14:15 PM · Last updated 9/18/2026, 9:14:15 PM

Severe Thunderstorm Warning issued September 18 at 4:05PM EDT until September 18 at 4:15PM EDT by NWS Greenville-Spartanburg SC

The National Weather Service Greenville-Spartanburg SC issued a Severe Thunderstorm Warning on 2026-09-18 at 20:05:00Z, in effect until 2026-09-18T20:15:00Z, for the Greenville–Spartanburg, South Carolina area.

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: 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: 7/10The event's broader significance, from limited importance (1) to major global importance (10).
Impact magnitude: 4/10The 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: 9/10How time-sensitive the event is, from low urgency (1) to immediate attention needed (10).

Why it matters

A Severe Thunderstorm Warning indicates immediate hazardous thunderstorm conditions that can threaten people, property, and travel in the warned area. Residents and travelers in the Greenville–Spartanburg region should take shelter and follow local safety guidance.

Location

Sources

Severe Thunderstorm Warning issued September 18 at 4:05PM EDT until September 18 at 4:15PM EDT by NWS Greenville-Spartanburg SC

Report an issue