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Storm ActivityOhio Storm ActivityMercer County, OH
Ohio · Official NOAA Storm Data

Mercer County Storm Activity

Wind, hail, and tornado activity from official NOAA sources (NWS & SPC) · Last 12 months · Updated Sep 12, 2026

Has it hailed in Mercer County, Ohio recently? Official National Weather Service (NWS) and Storm Prediction Center (SPC) records say yes: 17 hail reports with hail up to 1.5", among 58 severe weather events logged here in the last 12 months, together with 41 high-wind reports with gusts up to 65 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.

Map of Mercer County, Ohio showing the county boundary and surrounding cities
Mercer County, Ohio. Map © Mapbox © OpenStreetMap · County boundary: US Census Bureau.

58
Events (12 mo)
17
Hail
41
Wind
0
Tornado
1.5"
Max hail
65
Max wind (mph)
September 2026
Most recent

What the radar showed

Radar snapshot during the Mar 22, 2026 hail event near Mendon, Mercer County, Ohio, with NWS warning polygons
NEXRAD radar at the moment of the Mar 22, 2026 hail event (1.5") near Mendon. Outlined polygons are the storm-based warnings exactly as issued by the National Weather Service. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

Last 30 days in Mercer County

Current NEXRAD radar over Mercer County, Ohio with recent storm report locations
Current radar over the Mercer County area, with storm reports from the past 7 days plotted. Refreshes throughout the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.
September 2026 3 storm days · 4 NWS warnings — hail to 0.25", wind to 50 mph Exact dates & locations in app →
August 2026 1 storm day · 1 NWS warning — wind to 60 mph Exact dates & locations in app →

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.

Wednesday, August 12, 2026

1 SPC verified storm report — hail up to 1"

NEXRAD radar during the Wednesday, August 12, 2026 storm activity in Mercer County, Ohio
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

Tuesday, August 11, 2026

1 SPC verified storm report

“Power poles down in St. Henry along East Main Street. Time estimated from Radar. (ILN)”

SPC verified report · Saint Henry

Sunday, August 9, 2026

1 SPC verified storm report · 2 NWS warnings — wind gusts up to 50 mph

NEXRAD radar during the Sunday, August 9, 2026 storm activity in Mercer County, Ohio
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“At 811 PM EDT, strong thunderstorms were located along a line extending from near Elida to near Celina to near Hartford City, moving southeast at 25 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Celina, Wapakoneta, St. Marys, Ada, Coldwater, New Bremen, Minster, St.”

NWS severe weather mention · Mercer County

“At 751 PM EDT, strong thunderstorms were located along a line extending from near Geneva to near Hartford City, moving southeast at 30 mph. Hazard: Wind gusts up to 50 mph, frequent cloud-to-ground lightning, and very heavy rain. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Lightning can cause serious injury or death.”

NWS severe weather mention · Mercer County

Tuesday, July 21, 2026

2 NWS warnings — hail up to 0.25"

“At 631 AM EDT, a strong thunderstorm was located near Fort Recovery, moving east at 45 mph. Hazard: Wind gusts up to 40 mph and pea size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Hail may cause minor damage to vegetation. Locations impacted include... Celina, St. Marys, Coldwater, New Bremen, Minster, St.”

NWS severe weather mention · Mercer County

“At 548 AM EDT, strong thunderstorms were located along a line extending from Monroe to near Hartford City, moving east at 35 mph. Hazard: Wind gusts up to 40 mph and pea size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Hail may cause minor damage to vegetation. Locations impacted include...”

NWS severe weather mention · Mercer County

Friday, July 3, 2026

1 SPC verified storm report

Thursday, June 25, 2026

1 NWS warning — hail up to 1"

“While current showers moving through the area are not severe, thunderstorms are expected to develop around 3 pm in the Columbiana and New Castle areas and move along the I-80 corridor into the Butler/Franklin areas around 4 pm and over to Clarion and Punxsutawney by 5 to 6 pm. Large hail up to quarter to half dollar size and damaging wind gusts are possible with these storms.”

NWS severe weather mention · Mercer County

Wednesday, June 10, 2026

2 SPC verified storm reports · 1 NWS warning — wind gusts up to 50 mph

NEXRAD radar during the Wednesday, June 10, 2026 storm activity in Mercer County, Ohio
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“At 917 PM EDT, a strong thunderstorm was located near Portland, moving east at 30 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Coldwater, St. Henry, Fort Recovery, Wabash, and Burkettsville. If outdoors, consider seeking shelter inside a sturdy building.”

NWS severe weather mention · Mercer County

“Roof blown off barn along US-33. Time estimated from radar. (ILN)”

SPC verified report · 3 SSW Mendon

Saturday, June 6, 2026

1 NWS warning — hail up to 0.5"

“At 420 PM EDT, a strong thunderstorm was located 7 miles north of Union City, moving east at 35 mph. Hazard: Wind gusts up to 45 mph and half inch hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Hail may cause minor damage to vegetation. Locations impacted include... Versailles, St.”

NWS severe weather mention · Mercer County

Tuesday, May 19, 2026

1 NWS warning — hail up to 0.5"

“At 517 PM EDT, a strong thunderstorm was located 7 miles east of Berne, 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. Hail may cause minor damage to vegetation. Locations impacted include... Celina, Rockford, Wabash, Mendon, Chattanooga, Neptune, and Tama.”

NWS severe weather mention · Mercer County

Monday, May 18, 2026

4 NWS warnings — hail up to 0.25"

NEXRAD radar during the Monday, May 18, 2026 storm activity in Mercer County, Ohio
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“At 513 PM EDT, strong thunderstorms were located along a line extending from near Wapakoneta to Bradford, moving east at 30 mph. Hazard: Wind gusts up to 50 mph, pea size hail, frequent cloud-to-ground lightning, and very heavy rain. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Hail may cause minor damage to vegetation.”

NWS severe weather mention · Mercer County

“At 444 PM EDT, strong thunderstorms were located along a line extending from near Spencerville In Allen County to near Union City, moving east at 30 mph. Hazard: Wind gusts up to 50 mph, pea size hail, frequent cloud-to-ground lightning, and very heavy rain. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Hail may cause minor damage to vegetation.”

NWS severe weather mention · Mercer County

Monday, April 27, 2026

2 NWS warnings — wind gusts up to 50 mph

“Wind gusts of 35 to 50 MPH will be possible over the next few hours. These winds will occur separately from any thunderstorms. Winds of this magnitude may damage small tree limbs and make driving difficult, especially for high profile vehicles.”

NWS severe weather mention · Mercer County

“Wind gusts of 35 to 50 MPH will be possible over the next few hours. These winds will occur separately from any rain or thunderstorms. Winds of this magnitude may damage small tree limbs and make driving difficult, especially for high profile vehicles.”

NWS severe weather mention · Mercer County

Tuesday, April 14, 2026

1 SPC verified storm report · 1 NWS warning — hail up to 0.75"

NEXRAD radar during the Tuesday, April 14, 2026 storm activity in Mercer County, Ohio
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“At 633 PM EDT, a strong thunderstorm was located near Geneva, moving northeast at 35 mph. Hazard: Wind gusts up to 40 mph, penny size hail, and very heavy rain. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Hail may cause minor damage to vegetation. Visibility will be poor and hydroplaning is possible. Locations impacted include...”

NWS severe weather mention · Mercer County

“Large tree branches down. Report from social media. Time estimated from radar. (ILN)”

SPC verified report · Celina

Saturday, April 4, 2026

3 NWS warnings — wind gusts up to 50 mph

NEXRAD radar during the Saturday, April 4, 2026 storm activity in Mercer County, Ohio
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“Wind gusts of 40 to 50 mph will be possible ahead of and along a cold front, through 8 pm. Southerly wind gusts will become westerly as the front passes. Driving may be difficult for high profile vehicles. Power outages from downed branches are possible.”

NWS severe weather mention · Mercer County

“At 218 PM EDT, strong thunderstorms were located along a line extending from 7 miles southeast of Ohio City to near Celina, moving northeast 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... Celina, Wapakoneta, St.”

NWS severe weather mention · Mercer County

Wednesday, March 25, 2026

1 SPC verified storm report

“Poles down on 274. Time estimated from RADAR. (ILN)”

SPC verified report · Chickasaw

Sunday, March 22, 2026

1 SPC verified storm report · 1 NWS warning — hail up to 1.5"

NEXRAD radar during the Sunday, March 22, 2026 storm activity in Mercer County, Ohio
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“At 746 PM EDT, a strong thunderstorm was located over Rockford, moving east at 60 mph. Hazard: Wind gusts up to 45 mph and nickel size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Hail may cause minor damage to vegetation. Locations impacted include...”

NWS severe weather mention · Mercer County

Saturday, March 21, 2026

1 SPC verified storm report — hail up to 1"

NEXRAD radar during the Saturday, March 21, 2026 storm activity in Mercer County, Ohio
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

Sunday, March 15, 2026

3 NWS warnings — wind gusts up to 60 mph

“WHAT...South winds 20 to 30 mph with gusts up to 60 mph. WHERE...Portions of east central and southeast Indiana and west central Ohio. WHEN...Until 8 AM EDT Monday. IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles.”

NWS severe weather mention · Mercer County

“WHAT...South winds 15 to 25 mph with gusts up to 50 mph becoming west southwest. WHERE...Portions of east central and southeast Indiana, northern Kentucky, and central, southwest, and west central Ohio. WHEN...Until 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.”

NWS severe weather mention · Mercer County

Saturday, March 14, 2026

1 NWS warning — wind gusts up to 50 mph

“WHAT...South winds 20 to 30 mph with gusts up to 50 mph expected. WHERE...Portions of east central and southeast Indiana and west central Ohio. WHEN...From 11 AM 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.”

NWS severe weather mention · Mercer County

Friday, March 13, 2026

8 NWS warnings — wind gusts up to 65 mph

“WHAT...West winds 20 to 30 mph with gusts up to 65 mph. WHERE...Portions of east central Ohio, northwest, southwest, and western Pennsylvania, and northern and the northern panhandle of West Virginia. WHEN...Until midnight EDT tonight. IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected.”

NWS severe weather mention · Mercer County

“WHAT...For the Blowing Dust Advisory, visibility between one-quarter and one mile in blowing dust. For the High Wind Warning, west winds 25 to 35 mph with gusts up to 65 mph. WHERE...Auglaize, Hardin, and Mercer Counties. WHEN...Until 8 PM EDT this evening. IMPACTS...Hazardous driving conditions due to reduced visibility. Damaging winds will blow down trees and power lines.”

NWS severe weather mention · Mercer County

Thursday, March 12, 2026

6 NWS warnings — wind gusts up to 60 mph

“WHAT...West winds 15 to 25 mph with gusts up to 55 mph expected. Localized higher gusts to 60 mph are possible in the highest elevations of the eastern part of the county. WHERE...Portions of east central Ohio, northwest, southwest, and western Pennsylvania, and northern and the northern panhandle of West Virginia. WHEN...From 8 AM Friday to midnight EDT Friday Night.”

NWS severe weather mention · Mercer County

“WHAT...Southwest winds 25 to 35 mph with gusts up to 60 mph expected. WHERE...Delaware, Union, Auglaize, Champaign, Darke, Hardin, Logan, Mercer, Miami, and Shelby Counties. 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.”

NWS severe weather mention · Mercer County

Wednesday, March 11, 2026

1 NWS warning — wind gusts up to 50 mph

“WHAT...Southwest winds 15 to 25 mph with gusts up to 50 mph expected. WHERE...Portions of east central and southeast Indiana, northeast and northern Kentucky, and central, south central, southwest, and west central Ohio. WHEN...Until 7 PM EDT this evening. IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.”

NWS severe weather mention · Mercer County

Tuesday, March 10, 2026

1 NWS warning — wind gusts up to 50 mph

“WHAT...Southwest winds 15 to 25 mph with gusts up to 50 mph expected. WHERE...Portions of east central and southeast Indiana, northeast and northern Kentucky, and central, south central, southwest, and west central Ohio. WHEN...From 8 AM to 7 PM EDT Wednesday. IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.”

NWS severe weather mention · Mercer County

Friday, February 20, 2026

2 NWS warnings — wind gusts up to 50 mph

“WHAT...West winds 20 to 30 mph with gusts up to 50 mph. WHERE...Portions of east central Indiana and central and west central Ohio. WHEN...Until 6 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.”

NWS severe weather mention · Mercer County

“WHAT...Southwest winds 20 to 30 mph with gusts up to 45 to 50 mph expected. WHERE...Portions of east central Indiana and central and west central Ohio. WHEN...Until 6 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.”

NWS severe weather mention · Mercer County

Monday, December 29, 2025

1 NWS warning — wind gusts up to 62 mph

“WHAT...West winds 20 to 30 mph with gusts up to 55 mph. WHERE...Portions of east central Ohio, northwest, southwest, and western Pennsylvania, and northern and the northern panhandle of West Virginia. WHEN...Until 1 AM EST Tuesday. IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.”

NWS severe weather mention · Mercer County

Wednesday, November 26, 2025

1 NWS warning — wind gusts up to 50 mph

“WHAT...West winds 20 to 30 mph with gusts up to 45 to 50 mph expected. WHERE...Portions of east central and southeast Indiana and central, southwest, and west central Ohio. WHEN...Until 10 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.”

NWS severe weather mention · Mercer County

Today's severe weather outlook

Storm Prediction Center Day 1 convective outlook — national severe weather risk map for today
Storm Prediction Center Day 1 convective outlook: categorical severe weather risk for today, updated several times daily. Source: NOAA/NWS Storm Prediction Center.

Common questions

When was the last severe storm in Mercer County, OH?

The most recent recorded event was in September 2026. Official NWS and SPC records show 58 severe weather events in Mercer County over the last 12 months. Exact dates and locations for recent storms are available in the app with a free account.

Has there been hail in Mercer County recently?

Yes — 17 hail reports in the last 12 months, with hail up to 1.5" recorded.

How do I check whether a specific address was affected?

Create a free IDOLCheck account and run an address check. It shows verified storm reports and official NWS warning boundaries around any specific property — county-level pages like this one only tell part of the story.

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Proudly AI-powered. Honestly sourced. IDOLCheck is built by HailyAI. Every storm event, magnitude, radar snapshot, and date on this page is deterministic — retrieved directly from official NOAA, National Weather Service (NWS), and Storm Prediction Center (SPC) storm records through our HailyDB engine and displayed exactly as reported. Quoted warning and report text is always attributed to its official source. Where the surrounding copy is not a direct quote, it was generated with AI assistance from that same verified storm data and reviewed and approved by humans before publication. AI organizes and presents the record — it never invents storm data.
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