First published 9/19/2026, 1:57:15 AM · Last updated 9/19/2026, 1:57:15 AM

Severe Thunderstorm Warning — NWS Greenville-Spartanburg SC

National Weather Service issued a Severe Thunderstorm Warning for the Greenville–Spartanburg, SC area on Sept 18 (9:50 PM EDT–10:30 PM EDT), per the alert metadata.

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: 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: 9/10How time-sensitive the event is, from low urgency (1) to immediate attention needed (10).

Why it matters

An active NWS severe thunderstorm warning indicates an imminent hazardous weather event for the Greenville–Spartanburg area that can disrupt travel and local activities and pose safety risks for people in the warned area. Residents and travelers in the region should follow local guidance and take precautions while the warning is in effect.

Location

Sources

Severe Thunderstorm Warning issued September 18 at 9:50PM EDT until September 18 at 10:30PM EDT by NWS Greenville-Spartanburg SC

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