First published · Last updated
Severe Thunderstorm Warning — NWS Greenville-Spartanburg SC
The NWS Greenville-Spartanburg office issued a Severe Thunderstorm Warning on September 18, 2026, effective 4:06 PM EDT until 4:15 PM EDT.
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
- 9/10
- Geographic reach
- 3/10
- Global importance
- 7/10
- Impact magnitude
- 5/10
- Positivity
- 2/10
- Urgency
- 9/10
Why it matters
Severe thunderstorm warnings indicate imminent or occurring severe weather (damaging winds, hail, heavy rain) that can cause property damage, injuries, and travel disruption in the affected area over a short time window.

