Knoxville area, August 17, 2026: spotters filed 1 hail report in Blount County, at 21:20 UTC. Nearest to Knoxville was a report 15.2 miles out (1 W Maryville). Hail peaked at 1.00 in. at 1 W Maryville, Blount County.
Where the hail fell
- under 0.75 in
- 0.75 to 0.99
- 1.00 to 1.74
- 1.75 to 2.49
- 2.50 and up
How many reports fell close to the city
| Distance from city center | Reports | Largest hail |
|---|---|---|
| Within 5 miles | 0 | — |
| Within 10 miles | 0 | — |
| Within 25 miles | 1 | 1.00″ |
Reported hail, report by report
| Time (UTC) | Hail size | Location | Distance from city center |
|---|---|---|---|
| 21:20 | 1.00″ | 1 W Maryville, Blount County | 15.2 mi |
The rows above come from preliminary Local Storm Reports of the NOAA Storm Prediction Center. Sizes are reported hailstone diameters; times are UTC. Reports can be added or corrected for about a day after the event. Where a report carries no distance, it is measured in a straight line from its coordinates to the city center.
What 1.00 in. hail on August 17, 2026 means for a Knoxville roof
1 of the 1 sized Knoxville reports reached 1 in. The 1.00 in. stone at 1 W Maryville, Blount County falls in the 1.00 to 1.74 in class; on August 17, 2026 that is quarter to ping-pong ball territory for Knoxville.
How this day compares with other hail days
Knoxville has 2 hail days in our NOAA log; by largest hailstone, August 17, 2026 ranks #2 of them. Logged days closest in time to August 17, 2026:
- July 3: 1 report, largest 1.00″
The same storm in nearby cities
On August 17 the log holds 2 matched cities in 2 states; Knoxville has no neighbour within 220 miles, so its hail stood alone on August 17.
Where the claim clocks stand for the Knoxville storm
Knoxville: that storm was 69 days ago. Rows marked passed are not cut-off dates on their own; the only legal limits are the ones tagged statute. For Knoxville the photo window, the inspection and the target filing date (Mon, Aug 24) are already behind us.
- After you file proof of loss for the Aug 17 storm, the insurer has 60 calendar days. Statute text
Knoxville: insurer clocks counted from a claim filed Mon, Aug 24; working-day clocks skip weekends. Claim deadlines for Knoxville, TN. Not legal advice; your own reporting deadline comes from your policy.
August 17 against the Knox County August record
Knoxville's August 17 log shows 1.00 in. hail. The record August in Knox County since 2014 is 2023, with 1 reports and a largest stone of 1.00 in.
Hail history near Knoxville: not the first
Knoxville’s county has logged 37 hail events since 2017; if this one leads to a replacement, ask about Class 4 impact-resistant shingles, which some insurers discount. Check your own address on the hail risk lookup.
Verified roofers in Knoxville
- FLOW Roofing, LLCVerified
- McGuire Roofing & ConstructionVerified
- Pinpoint Roofing LLCVerified
- Banner Contracting GroupVerified
See all roofing contractors in Knoxville, TN
What the sizes reported on August 17, 2026 can do to a roof
| Size class in Knoxville's reports | Looks like | Reports | What that size can do |
|---|---|---|---|
| 1.00 to 1.74 in | quarter to ping-pong ball | 1 | Shingles can bruise and shed granules, often unseen from the ground. |
Size classes follow the SPC report diameters; the damage wording is general, not a finding about any one roof.
This date among 2026's matched hail days
In 2026 the feed holds 2 matched hail days for Knoxville. Ranked by largest stone, then report count, August 17, 2026 is #1 of them, level with 1 other day on both counts.
| Date | City | Reports | Largest hail |
|---|---|---|---|
| Jul 3 | Knoxville | 1 | 1.00″ |
| Aug 17 | Knoxville | 1 | 1.00″ |
Ranked by largest stone, then by report count. Only dates the SPC feed matched to a covered city are counted.
The week after August 17, 2026
After Mon, Aug 17, the feed logged 6 hail reports on 1 of the next 7 days in Knoxville and the cities within 100 miles. The first came on Sat, Aug 22.
| Day | Reports in Knoxville | Other cities within 100 miles | Largest hail |
|---|---|---|---|
| Sat, Aug 22 | 0 | 1 city, 6 reports | 1.50″ |
Verified roofers near Knoxville
4 verified roofers listed for Knoxville. Verified means the license was matched to a state registry.
Questions about this storm
Knoxville, August 17, 2026: how big was the hail?
At 1 W Maryville, Blount County, the largest SPC report was 1.00 in.
Knoxville, August 17, 2026: how close did the hail fall?
The nearest report sat 15.2 miles from the city center.
Knoxville, August 17, 2026: was this the worst hail day on record?
Knoxville has 2 logged hail days; August 17, 2026 ranks #2 for Knoxville, at 1.00 in. The best other day reached 1.00 in.
Knoxville, August 17, 2026: what dates apply to a Tennessee insurer?
A claim filed on Mon, Aug 24 puts Knoxville's insurer on the clock: acknowledgment by Wed, Sep 23; decision 60 calendar days after proof of loss. That is Tennessee law, applied to Knoxville. Information, not legal advice; Knoxville homeowners find their own reporting deadline in the policy.
Do I need an inspection if my roof looks fine?
Often, yes. Hail bruises and granule loss are hard to see from the ground. A dated inspection scope is what ties damage to this storm rather than to ordinary wear.
What did the feed log near Knoxville in the week after August 17, 2026?
After Mon, Aug 17, the feed logged 6 hail reports on 1 of the next 7 days in Knoxville and the cities within 100 miles. The first came on Sat, Aug 22.
How many verified roofers can inspect after the Mon, Aug 17 storm in Knoxville?
4 verified roofers listed for Knoxville. Verified means the license was matched to a state registry.
About these numbers
Every figure on this page comes from the NOAA Storm Prediction Center Local Storm Reports file, matched to reports within 25 miles of the city center. Reports are preliminary: they come from trained spotters, emergency managers, the public and mPING app submissions, and sizes are often estimated against a coin or ball. We do not adjust them. A roofer tagged Verified holds a license or registration we confirmed in a public registry. That tag says nothing about coverage, so ask whoever you pick for a current certificate of insurance before signing.
More Resources
All recent local hail · Roofing contractors · Insurance claim guide · Roof replacement costs here · Emergency roof repair