Knox County Hail Map & Storm Reports
Hail, wind, and tornado reports from official NOAA sources (NWS & SPC) · Last 12 months · Updated Sep 13, 2026
Knox County, Ohio has recorded tornado activity: official National Weather Service (NWS) and Storm Prediction Center (SPC) records list 1 tornado report among 53 severe weather events here in the last 12 months, alongside 22 hail reports with hail up to 1" and 30 high-wind reports with gusts up to 60 mph. The most recent recorded storm activity was in September 2026. This page updates daily: every event comes straight from official NOAA data — no estimates, no modeling, just the record.
Knox County hail map
Where hail and high-wind reports clustered across Knox County over the last 12 months. Heat shows report density and significance, not radar.
What the radar showed
Last 30 days in Knox County
Recent storms — full detail available in the app
Storm activity from the last 30 days is summarized at the county level on this page. Exact locations, radar snapshots, and official warning boundaries for recent events are available with a free account.
See the specifics — free →Storm log — the official record, day by day
Events older than 30 days, as recorded by the National Weather Service and Storm Prediction Center. Excerpts are quoted directly from official warnings and verified reports.
Tuesday, August 11, 2026
1 NWS warning — hail up to 0.25"
“At 953 AM EDT, Doppler radar was tracking strong thunderstorms along a line extending from 7 miles north of Chesterville to 7 miles north of Sunbury. Movement was east at 40 mph. Hazard: Wind gusts up to 50 mph and pea size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include...”
- Hail 0.25" Knox County NWS severe weather mention
Tuesday, July 21, 2026
1 NWS warning — hail up to 0.5"
“At 1010 AM EDT, Doppler radar was tracking a strong thunderstorm near Fredericktown, or 11 miles east of Mount Gilead, moving east at 55 mph. Hazard: Wind gusts up to 50 mph and half inch hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include...”
- Hail 0.5" Knox County NWS severe weather mention
Saturday, July 18, 2026
1 SPC verified storm report · 1 NWS warning — hail up to 0.5"
“At 619 PM EDT, Doppler radar was tracking strong thunderstorms along a line extending from near Danville to near Ashley. Movement was southeast at 40 mph. Hazard: Wind gusts up to 50 mph and half inch hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include...”
“Knox County Sheriff Dispatch reported a tree down at Hyatt Road and Z Street. Time estimated via radar. (CLE)”
- Hail 0.5" Knox County NWS severe weather mention
- Wind Unknown 2 SE Fredericktown SPC verified report
Friday, July 10, 2026
2 NWS warnings — hail up to 0.88", wind gusts up to 50 mph
“At 544 PM EDT, Doppler radar was tracking a strong thunderstorm near Sparta, or 13 miles south of Mount Gilead, moving east at 20 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Mount Vernon, Gambier, Utica, Centerburg, Danville, Sparta, Marengo, Martinsburg, and Bladensburg.”
“At 829 AM EDT, Doppler radar was tracking a strong thunderstorm over Centerburg, or 13 miles west of Mount Vernon, moving east at 10 mph. Hazard: Wind gusts up to 50 mph and nickel size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include... Mount Vernon, Gambier, Utica, and Centerburg.”
- Wind 50 mph Knox County NWS severe weather mention
- Hail 0.88" Knox County NWS severe weather mention
Saturday, July 4, 2026
2 NWS warnings — hail up to 0.5"
“At 335 PM EDT, Doppler radar was tracking a strong thunderstorm near Fredericktown, or 10 miles north of Mount Vernon, moving east at 30 mph. Hazard: Wind gusts up to 50 mph and half inch hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include...”
“At 255 PM EDT, Doppler radar was tracking a strong thunderstorm near Mount Gilead, moving east at 20 mph. Hazard: Wind gusts up to 50 mph and half inch hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include... Fredericktown, Bellville, Chesterville, Waterford, and Shauck.”
- Hail 0.5" Knox County NWS severe weather mention
- Hail 0.5" Knox County NWS severe weather mention
Thursday, June 25, 2026
1 NWS warning — hail up to 0.5"
“At 414 PM EDT, Doppler radar was tracking a strong thunderstorm near Loudonville, or 15 miles southeast of Mansfield, moving east at 25 mph. Hazard: Wind gusts up to 40 mph and half inch hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include...”
- Hail 0.5" Knox County NWS severe weather mention
Tuesday, June 16, 2026
2 NWS warnings — hail up to 0.5", wind gusts up to 55 mph
“At 1042 PM EDT, Doppler radar was tracking a strong thunderstorm near Sparta, or 9 miles south of Mount Gilead, moving east at 35 mph. Hazard: Wind gusts of 50 to 55 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include...”
“At 1119 PM EDT, Doppler radar was tracking a strong thunderstorm over Danville, or 12 miles northeast of Mount Vernon, moving east at 45 mph. Hazard: Wind gusts of 50 to 55 mph and half inch hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include...”
- Wind 55 mph Knox County NWS severe weather mention
- Hail 0.5" Knox County NWS severe weather mention
Sunday, June 14, 2026
1 NWS warning — wind gusts up to 50 mph
“At 322 PM EDT, Doppler radar was tracking strong thunderstorms along a line extending from near Lexington to near Mount Gilead to near Waldo. Movement was east at 45 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include...”
- Wind 50 mph Knox County NWS severe weather mention
Friday, June 12, 2026
1 NWS warning — wind gusts up to 50 mph
“At 127 AM EDT, Doppler radar was tracking gusty showers along a line extending from near Crestline to near Ashley. Movement was east at 50 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include...”
- Wind 50 mph Knox County NWS severe weather mention
Saturday, June 6, 2026
1 SPC verified storm report · 1 NWS warning — hail up to 0.5"
“At 1144 AM EDT, Doppler radar was tracking strong thunderstorms along a line extending from near Lexington to Polaris. Movement was east at 70 mph. Hazard: Wind gusts up to 50 mph and half inch hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include...”
“Large Tree and power lines down on State Route 13 between Mount Vernon and Green Valley. (CLE)”
- Hail 0.5" Knox County NWS severe weather mention
- Wind Unknown 3 NW Mount Vernon SPC verified report
Tuesday, May 19, 2026
1 NWS warning — wind gusts up to 50 mph
“At 814 PM EDT, Doppler radar was tracking strong thunderstorms along a line extending from near Galion to near Ashley to near Plain City. Movement was east at 45 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include...”
- Wind 50 mph Knox County NWS severe weather mention
Tuesday, May 5, 2026
2 NWS warnings — wind gusts up to 50 mph
“At 614 PM EDT, Doppler radar was tracking a strong thunderstorm near Danville, or 11 miles northeast of Mount Vernon, moving northeast at 50 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include...”
“At 540 PM EDT, Doppler radar was tracking a strong thunderstorm near Centerburg, or 13 miles northeast of Westerville, moving northeast at 50 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include...”
- Wind 50 mph Knox County NWS severe weather mention
- Wind 50 mph Knox County NWS severe weather mention
Wednesday, April 22, 2026
4 NWS warnings — hail up to 0.75"
“At 648 PM EDT, Doppler radar was tracking a strong thunderstorm 11 miles northwest of Frazeysburg, or 15 miles southeast of Mount Vernon, moving southeast at 15 mph. Hazard: Wind gusts up to 40 mph and penny size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible.”
“At 606 PM EDT, Doppler radar was tracking a strong thunderstorm near Gambier, or 9 miles east of Mount Vernon, moving southeast at 15 mph. Hazard: Wind gusts up to 40 mph and penny size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include... Bladensburg.”
- Hail 0.75" Knox County NWS severe weather mention
- Hail 0.75" Knox County NWS severe weather mention
- Hail 0.25" Knox County NWS severe weather mention
- Hail 0.25" Knox County NWS severe weather mention
Monday, April 13, 2026
1 NWS warning — wind gusts up to 50 mph
“Scattered southwest wind gusts to 45 mph are possible through early this morning. Very brief and isolated gusts to 50 mph are possible. The gusty winds may blow unsecured objects around and there may be brief periods of difficult driving conditions, especially for high profile vehicles.”
- Wind 50 mph Knox County NWS severe weather mention
Saturday, April 4, 2026
2 NWS warnings — wind gusts up to 55 mph
“At 723 PM EDT, Doppler radar was tracking a strong thunderstorm 9 miles east of Utica, or 14 miles northeast of Newark, moving northeast at 55 mph. Hazard: Wind gusts of 50 to 55 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Martinsburg and Bladensburg.”
“At 635 PM EDT, Doppler radar was tracking strong thunderstorms along a line extending from Chesterville to near Reynoldsburg. Movement was northeast at 50 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include...”
- Wind 55 mph Knox County NWS severe weather mention
- Wind 50 mph Knox County NWS severe weather mention
Friday, April 3, 2026
4 NWS warnings — hail up to 0.5"
“At 741 PM EDT, Doppler radar was tracking strong thunderstorms along a line extending from near Hayesville to near Chesterville. Movement was east at 25 mph. Hazard: Wind gusts up to 50 mph and half inch hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include...”
“At 730 PM EDT, Doppler radar was tracking a strong thunderstorm over Mount Gilead, moving east at 20 mph. Hazard: Wind gusts up to 50 mph and half inch hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include...”
- Hail 0.5" Knox County NWS severe weather mention
- Hail 0.5" Knox County NWS severe weather mention
- Hail 0.25" Knox County NWS severe weather mention
- Hail 0.25" Knox County NWS severe weather mention
Wednesday, March 25, 2026
3 SPC verified storm reports — hail up to 1", 1 tornado report
“A brief EF-0 tornado with maximum wind speeds of 75 mph and a maximum width of 20 yards began just west of Granny Creek road southwest of Fredricktown. The tornado ripp (CLE)”
“Tree downed on a house near Fredericktown. (CLE)”
- Tornado Tornado 4 SW Fredericktown SPC verified report
- Hail 1" 3 S Butler SPC verified report
- Wind Unknown Fredericktown SPC verified report
Sunday, March 22, 2026
1 NWS warning — hail up to 0.75"
“At 815 PM EDT, Doppler radar was tracking a strong thunderstorm over Sunbury, or 10 miles northeast of Westerville, moving northeast at 65 mph. Hazard: Penny size hail. Impact: Minor hail damage to vegetation is possible. Locations impacted include... Mount Vernon, Fredericktown, Gambier, Centerburg, Danville, Sparta, Martinsburg, Gann, and North Liberty.”
- Hail 0.75" Knox County NWS severe weather mention
Saturday, March 21, 2026
2 SPC verified storm reports — hail up to 1"
- Hail 1" Mount Vernon SPC verified report
- Hail 1" 5 E Sparta SPC verified report
Monday, March 16, 2026
1 NWS warning — wind gusts up to 55 mph
“WHAT...South winds 20 to 30 mph with gusts up to 55 mph expected this morning, shifting southwest 20 to 30 mph with gusts up to 50 mph this afternoon. WHERE...Portions of north central, northeast, and northwest Ohio and northwest Pennsylvania. WHEN...Until 8 PM EDT this evening. IMPACTS...Gusty winds will blow around unsecured objects.”
- Wind 55 mph Knox County NWS severe weather mention
Sunday, March 15, 2026
4 NWS warnings — wind gusts up to 55 mph
“WHAT...South winds 20 to 30 mph with gusts up to 55 mph expected through tonight, shifting southwest 20 to 30 mph with gusts up to 50 mph on Monday. WHERE...Portions of north central, northeast, and northwest Ohio and northwest Pennsylvania. WHEN...Until 8 PM EDT Monday. IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.”
“WHAT...South winds 20 to 30 mph with gusts up to 55 mph expected through tonight, shifting southwest 20 to 30 mph with gusts up to 50 mph on Monday. WHERE...Portions of north central, northeast, and northwest Ohio and northwest Pennsylvania. WHEN...Until 8 PM EDT Monday. IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.”
- Wind 55 mph Knox County NWS severe weather mention
- Wind 55 mph Knox County NWS severe weather mention
- Wind 55 mph Knox County NWS severe weather mention
- Wind 50 mph Knox County NWS severe weather mention
Saturday, March 14, 2026
2 NWS warnings — wind gusts up to 50 mph
“WHAT...South winds 20 to 30 mph with gusts up to 50 mph expected. WHERE...Portions of north central, northeast, and northwest Ohio and northwest Pennsylvania. WHEN...From 2 PM Sunday to 8 AM EDT Monday. IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.”
“WHAT...South winds 20 to 30 mph with gusts up to 50 mph expected. WHERE...Portions of north central, northeast, and northwest Ohio and northwest Pennsylvania. WHEN...From 2 PM Sunday to 8 AM EDT Monday. IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.”
- Wind 50 mph Knox County NWS severe weather mention
- Wind 50 mph Knox County NWS severe weather mention
Friday, March 13, 2026
2 NWS warnings — wind gusts up to 60 mph
“WHAT...Southwest winds 30 to 40 mph with gusts up to 60 mph. WHERE...Portions of north-central and northwest Ohio. WHEN...Until 8 PM EDT this evening. IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for those in high profile vehicles.”
“WHAT...Southwest winds 30 to 40 mph with gusts up to 60 mph expected. WHERE...Portions of north central and northwest Ohio. WHEN...Until 8 PM EDT this evening. IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles.”
- Wind 60 mph Knox County NWS severe weather mention
- Wind 60 mph Knox County NWS severe weather mention
Thursday, March 12, 2026
4 NWS warnings — wind gusts up to 60 mph
“WHAT...Southwest winds 25 to 35 mph with gusts up to 60 mph expected. WHERE...Portions of north central and northwest Ohio. WHEN...From 5 AM to 8 PM EDT Friday. IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles.”
“WHAT...Southwest winds 25 to 35 mph with gusts up to 60 mph expected. WHERE...Portions of north central and northwest Ohio. WHEN...From 5 AM to 8 PM EDT Friday. IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles.”
- Wind 60 mph Knox County NWS severe weather mention
- Wind 60 mph Knox County NWS severe weather mention
- Wind 60 mph Knox County NWS severe weather mention
- Wind 55 mph Knox County NWS severe weather mention
Friday, February 20, 2026
1 NWS warning — wind gusts up to 50 mph
“WHAT...Southwest to West winds 20 to 30 mph with gusts up to 50 mph. WHERE...Portions of north central and northeast Ohio and northwest Pennsylvania. WHEN...Until 7 PM EST this evening. IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.”
- Wind 50 mph Knox County NWS severe weather mention
Friday, November 7, 2025
1 NWS warning — wind gusts up to 50 mph
“At 1001 AM EST, Doppler radar was tracking strong thunderstorms along a line extending from near New London to Mount Gilead. Movement was east at 60 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include...”
- Wind 50 mph Knox County NWS severe weather mention
Today's severe weather outlook
Common questions
When was the last severe storm in Knox County, OH?
The most recent recorded event was in September 2026. Official NWS and SPC records show 53 severe weather events in Knox County over the last 12 months. Exact dates and locations for recent storms are available in the app with a free account.
Did it hail in Knox County recently?
Yes — 22 hail reports in the last 12 months, with hail up to 1" recorded. The hail map above shows where reports clustered; the storm log lists each day.
How do I see hail history for a specific address in Knox County?
Create a free IDOLCheck account and run an address check. It shows verified storm reports and official NWS warning boundaries around any specific property, including the most recent 30 days — county-level pages like this one only tell part of the story.