StormProof → hail seasons → Knoxville → 1998
Knoxville hail season 1998
15 NWS-recorded hail reports ≥1″ within 25 miles, across 6 storm days, max 3.00". Every one of those reports is a dated, located, citable official record — the context behind this market's 1998 claim volume.
Biggest storm days (1998, final record)
| Date | ≥1″ reports | Max hail | Areas named in the record |
|---|---|---|---|
| May 21, 1998 | 9 | 3.00" | KNOX, JEFFERSON |
| May 26, 1998 | 2 | 1.75" | KNOX, SEVIER |
| April 18, 1998 | 1 | 1.00" | KNOX |
| April 16, 1998 | 1 | 1.00" | ANDERSON |
| April 8, 1998 | 1 | 1.00" | GRAINGER |
When it fell
Apr 4 · May 11
Wind context: the record also holds 3 thunderstorm-wind events ≥50 kt (≈58 mph, the NWS severe criterion) in this radius for 1998 — relevant where the dispute is wind vs hail causation.
Working a Knoxville claim from 1998?
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.
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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.