The most recent reported hail day was 2024-09-24 -- 1 year ago, with nothing reported since. Sullivan County is hit in most years. The largest stone on record here is 2.75 inches, a baseball and 2.8 times the National Weather Service's 1 inch severe criterion, reported on 2014-07-27 near Kingsport.
Colored swath = NOAA MRMS radar-estimated hail size; dots = NOAA SPC reports in Tennessee. Radar-indicated, not a guarantee of damage.
The last hail here fell on 2024-09-24, around Bloomingdale. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Sullivan County addresses inside a hail swath above your size threshold into a door-knock list you can export, scoped to your approved markets.
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See call-center options ->NOAA's Storm Prediction Center has logged 21 separate hail days here since 2010 -- 1.2 a year over 17 years of record. They carry 37 reports in total: most hail days here are logged from a single spot. 5 of those 17 years produced none at all. One year dominates the record: 2011 alone produced 6 of the 21 days. The last five years track the long-run rate, with 5 days since 2022.
2 of the 21 days reached 2 inches or more -- 10%, or about one hail day in 10, the last on 2014-07-27. Those big days do not follow the county's usual calendar: most of them fall in April, not May. Golf-ball size is rarer still: 1.75 inches or more on 3 of the 21 days.
Across the whole of Tennessee, see the Tennessee hail map and history.
Reports cluster nearest Kingsport -- 7 of the county's 21 hail days -- then Bristol Tn (5), Bluff City (5), Blountville (3) and Bloomingdale (3). Beyond those, NOAA names Colonial Heights on more than one hail day apiece.
| Place | Hail days since 2010 | Largest stone |
|---|---|---|
| Kingsport | 4 | 2.75″ |
| Bristol Tn | 3 | 2.75″ |
| Bluff City | 3 | 1.75″ |
| Blountville | 2 | 1.00″ |
| 4 Ssw Kingsport | 1 | 2.75″ |
The season runs March through July: 18 of the 21 hail days on record fall in those 5 months (86%). May is the single busiest month, with 9 of them (43%). That peak sits inside the window rather than at either end. Hail has also been reported in September, outside that window. Reports span 6 of the 12 calendar months; the other 6 have never produced one.
| Month | Hail days |
|---|---|
| March | 3 |
| April | 2 |
| May | 9 |
| June | 1 |
| July | 3 |
| September | 3 |
That day put 1 report on the map, the biggest 1 inch near Bloomingdale. No hail day has been reported here yet this year.
| Date | Max hail | Reports |
|---|---|---|
| 2024-09-24 | 1.00″ | 1 |
| 2023-09-07 | 1.00″ | 1 |
| 2022-05-21 | 1.00″ | 1 |
| 2022-05-19 | 1.50″ | 4 |
| 2022-05-06 | 1.25″ | 1 |
| 2021-03-27 | 1.00″ | 1 |
| 2020-06-14 | 1.00″ | 1 |
| 2018-03-17 | 1.00″ | 1 |
The colored swath is NOAA's MRMS radar estimate of the largest hail per ~1 km cell; the dots are SPC ground reports. Yellow is about an inch, red 1.5 to 2″, purple 2″ and up (hail size vs roof damage). On this county's worst day the reports reached 2.75 inches, which is the purple band. Look up a street address with the hail history by address tool.
The nearest counties with a page of their own: Washington County (19 hail days), Hawkins County (16) and Greene County (23). Sullivan County sits in between.
Washington County · Hawkins County · Greene County
Back to the Tennessee hail map or the U.S. hail map.
Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Sullivan County, Tennessee only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.