Tennessee Storm Data: Hail, Wind & Severe Weather
Deduplicated severe weather activity for Tennessee, fused from NWS warnings, storm reports, official records, and FEMA declarations.
Tennessee severe weather at a glance (last 12 months)
StormAuditor's consolidated public record currently shows 5,398 storm events impacting 95 of Tennessee's 95 counties in the trailing 12 months: 2,795 wind events, 1,861 hail events, 73 tornado events, 670 flood events. Events are fused from National Weather Service warnings and Special Weather Statements, observed Local Storm Reports, official NCEI storm records, and FEMA disaster declarations, then consolidated into a single event table under the published methodology. Because a single storm can carry more than one hazard tag (a squall line can produce both wind and flood records), the per-type counts can legitimately add up to more than the consolidated total. Sub-severe statements (radar-indicated gusts of 40+ mph or hail of 0.5"+) are included at a distinct moderate tier and never counted as severe.
Biggest Tennessee storm days
- April 28, 2026 — 418 recorded events (flood, hail, tornado, wind)
- March 15, 2026 — 350 recorded events (hail, tornado, wind)
- August 17, 2026 — 242 recorded events (flood, hail, wind)
- March 16, 2026 — 236 recorded events (hail, wind)
- July 3, 2026 — 231 recorded events (flood, hail, wind)
Most impacted counties
- Shelby — 134 events (69 severe)
- Davidson — 116 events (66 severe)
- Williamson — 115 events (56 severe)
- Knox — 111 events (36 severe)
- Lincoln — 102 events (50 severe)
- Greene — 100 events (48 severe)
- Wilson — 97 events (42 severe)
- Sumner — 94 events (41 severe)
Additional activity recorded in NWS forecast zones: Sevier/smoky Mountains (6) · Northwest Greene (1).
Download the Tennessee dataset (free)
The full consolidated Tennessee event list for the trailing 12 months — dates, counties, hazard types, severities, measured gusts and hail sizes, with coordinates; source records deduplicated, and each NWS warning product listed per affected county — downloads free and stays current with the live record: download CSV · download JSON. Reusable with attribution under the data license; the JSON file carries a field dictionary and provenance notes.
Research a specific Tennessee address
Statewide counts tell you where activity concentrated; they do not tell you what happened at one property. For an individual address, run the Free Report Snapshot (an instant YES/NO against StormAuditor's screening thresholds — wind ≥ 45 mph, hail ≥ 0.75 in., deliberately below the official NWS severe criteria), use the Address Lookup, or purchase a full Weather Report for $2.99 covering every qualifying storm date at the address. Browse day-by-day activity on the Storm Calendar or compare states on the Storm Data hub.
All values are derived from public NOAA and NWS data under StormAuditor's published methodology. They are research estimates, not certified weather records — see Limitations. Data last refreshed September 6, 2026.
See where recent storms tracked on the statewide Tennessee hail map and wind map, or check the county impact heatmap.
Tennessee city storm pages: Nashville hail & wind history · Memphis hail & wind history · Knoxville hail & wind history · Chattanooga hail & wind history · Clarksville hail & wind history · Murfreesboro hail & wind history · Franklin hail & wind history · Johnson City hail & wind history · Jackson hail & wind history · Hendersonville hail & wind history · Kingsport hail & wind history · Smyrna hail & wind history
Neighboring states: Alabama storm data · Arkansas storm data · Georgia storm data · Kentucky storm data · Missouri storm data · Mississippi storm data
About this page: built by Storm Auditor LLC from public NOAA/NWS records — deduplicated warnings, storm reports, station measurements, and official records on a rolling 12-month window, under the published methodology. See the StormAuditor Editorial Team for how content is produced.