Severe Thunderstorm Warning Issued for Sullivan and Washington Counties, TN
This alert is no longer in effect.
NOAA issued it on August 11, 2026, 12 days ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
NWS Morristown has issued a Severe Thunderstorm Warning for southwestern Sullivan County and north central Washington County in east Tennessee until 4:00 PM EDT.
Read this weather record in 30 seconds
- Record type
- Severe Thunderstorm Warning
- Affected area
- East Tennessee
- Issued
- August 11, 2026
- Issuing authority
- NWS Morristown TN
Storm notices can cover different combinations of wind, hail, lightning, and rainfall. Use the original notice for the hazards and boundaries attached to this specific record.
Record status: historical. It was issued 12 days ago; use the issuing agency's live warning service for current conditions in East Tennessee.
Alert Details
A Severe Thunderstorm Warning was issued by the National Weather Service in Morristown TN on August 11 at 3:14 PM EDT. The alert is effective from 3:14 PM EDT until 4:00 PM EDT on August 11, 2026.
Affected Areas
The warning covers southwestern Sullivan County and north central Washington County in east Tennessee. Locations impacted include Johnson City, Kingsport, Gray, Oak Grove, Colonial Heights, Spurgeon, Sullivan Gardens, Warriors Path State Park, Tri-City Airport, and Bays Mountain Park. Affected highways include Interstate 26 between mile markers 1 and 16 and Interstate 81 between mile markers 52 and 63.
What You Should Do
For protection, move to an interior room on the lowest floor of a building.
Expected Conditions
At 3:14 PM EDT, a severe thunderstorm was located over Colonial Heights near Kingsport, moving southeast at 10 mph. Hazards include 60 mph wind gusts and penny size hail (0.75 inch). Radar indicated. Expect damage to roofs, siding, and trees.
Timeline
The warning is in effect from 3:14 PM EDT to 4:00 PM EDT on August 11, 2026.
Original source: NOAA Official Notice ↗
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Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (1,094 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to August 11, 2026.
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