StormProof → hail seasons → Knoxville → 1999
Knoxville hail season 1999
9 NWS-recorded hail reports ≥1″ within 25 miles, across 6 storm days, max 1.75". Every one of those reports is a dated, located, citable official record — the context behind this market's 1999 claim volume.
Biggest storm days (1999, final record)
| Date | ≥1″ reports | Max hail | Areas named in the record |
|---|---|---|---|
| May 7, 1999 | 3 | 1.75" | BLOUNT, KNOX, UNION |
| January 18, 1999 | 2 | 1.75" | KNOX, SEVIER |
| July 29, 1999 | 1 | 1.75" | LOUDON |
| June 2, 1999 | 1 | 1.00" | ANDERSON |
| May 13, 1999 | 1 | 1.00" | KNOX |
“Hail reported near and along Route 33 between Maynardville and Knox County line.”
— NWS event narrative, May 7, 1999 (NCEI Storm Events)
When it fell
Jan 2 · Apr 1 · May 4 · Jun 1 · Jul 1
Wind context: the record also holds 4 thunderstorm-wind events ≥50 kt (≈58 mph, the NWS severe criterion) in this radius for 1999 — relevant where the dispute is wind vs hail causation.
Working a Knoxville claim from 1999?
These are aggregates. A claim file needs the per-address record: every recorded event within 1, 3 and 10 miles of the property, distances, official narratives, and citations an adjuster can check line by line. That's the report — generated in seconds, hosted on HailEvidence (the neutral evidence surface), formatted as an insurance-appeal attachment.
Unlimited reports — Pro $99/mo Single report $29
Provenance
Final counts: NCEI Storm Events Database, file vintage c20260527, hail events with recorded magnitude ≥1.00″ and point coordinates within 25 miles of the Knoxville anchor. NWS records are point and path observations. The absence of a nearby report does NOT prove that no hail fell at this address — it means no observation was logged nearby. A report of nearby hail documents the event; it does not by itself prove damage to a specific structure. Spotted an error? Email the address on our terms page and we correct against the source.