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Storm ActivityPennsylvania Storm ActivityMercer County, PA
Pennsylvania · Official NOAA Storm Data

Mercer County Hail Map & Storm Reports

Hail, wind, and tornado reports from official NOAA sources (NWS & SPC) · Last 12 months · Updated Sep 15, 2026

Has it hailed in Mercer County, Pennsylvania recently? Official National Weather Service (NWS) and Storm Prediction Center (SPC) records say yes: 3 hail reports with hail up to 1.75", among 56 severe weather events logged here in the last 12 months, together with 53 high-wind reports with gusts up to 70 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, Pennsylvania showing the county boundary and surrounding cities
Mercer County, Pennsylvania. Map © Mapbox © OpenStreetMap · County boundary: US Census Bureau.

Mercer County hail map

Where hail and high-wind reports clustered across Mercer County over the last 12 months. Heat shows report density and significance, not radar.

56
Events (12 mo)
3
Hail
53
Wind
0
Tornado
1.75"
Max hail
70
Max wind (mph)
September 2026
Most recent

What the radar showed

Radar snapshot during the Apr 15, 2026 hail event near 2 NE Orangeville, Mercer County, Pennsylvania, with NWS warning polygons
NEXRAD radar at the moment of the Apr 15, 2026 hail event (1.75") near 2 NE Orangeville. 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, Pennsylvania 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 2 storm days · 8 SPC verified reports Exact dates & locations in app →
August 2026 1 storm day · 4 SPC verified reports 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.

Sunday, August 16, 2026

1 NWS warning — wind gusts up to 60 mph

“A line of thunderstorms will continue to move east across the region this afternoon. Some of these storms could contain wind gusts up to 50 mph. There is also a potential for severe storms with damaging wind gusts of 60 mph. The storms should approach the Pittsburgh area between 3:30 and 4 pm. Severe thunderstorm warnings may be needed.”

NWS severe weather mention · Mercer County

Monday, August 10, 2026

1 NWS warning — wind gusts up to 70 mph

“A line of thunderstorms that has produced wind gusts of 40 to 60 mph in the Cleveland area is expected to move along the I-80 corridor this morning. The storms are expected to reach Sharon/Greenville PA areas around 9:30 am, Franklin/New Castle about 10 am, Clarion/Butler near 10:30 am, and Brookville/Kittaning PA around 11:00 am this morning.”

NWS severe weather mention · Mercer County

Tuesday, July 21, 2026

1 SPC verified storm report

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

“Tree down. Time estimated via radar. (PBZ)”

SPC verified report · 3 NE Greenville East

Monday, July 20, 2026

1 SPC verified storm report

NEXRAD radar during the Monday, July 20, 2026 storm activity in Mercer County, Pennsylvania
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“Corrects previous tstm wnd dmg report from Slippery Rock. Tree down on wire over roadway near intersection of PA 173 and Franklin Street. Time estimated from radar. (PBZ)”

SPC verified report · Sandy Lake

Saturday, July 18, 2026

2 SPC verified storm reports

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

“Power lines down and arcing/on fire at Half Road and East Jamestown Road. (PBZ)”

SPC verified report · 2 SE Jamestown

“Corrects time of previous tstm wnd dmg report from 2 SE Jamestown. Power lines down and arcing/on fire at Half Road and East Jamestown Road. (PBZ)”

SPC verified report · 2 SE Jamestown

Friday, July 3, 2026

2 SPC verified storm reports

NEXRAD radar during the Friday, July 3, 2026 storm activity in Mercer County, Pennsylvania
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“Wires down on Kimberly Road and Bentley Ave. (PBZ)”

SPC verified report · 1 E Sharon

Thursday, July 2, 2026

1 SPC verified storm report

NEXRAD radar during the Thursday, July 2, 2026 storm activity in Mercer County, Pennsylvania
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“WIRE DOWN and POWER OUT. Located ON SARANAC DR after COLT RD. Time based on radar estimate. (PBZ)”

SPC verified report · 5 NNW Clark

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

Saturday, June 20, 2026

1 SPC verified storm report

NEXRAD radar during the Saturday, June 20, 2026 storm activity in Mercer County, Pennsylvania
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“Large limb down into power lines on Terrace Ave. (PBZ)”

SPC verified report · 1 ENE Grove City

Sunday, June 14, 2026

1 SPC verified storm report

Saturday, May 9, 2026

1 NWS warning — wind gusts up to 50 mph

“At 559 pm National Weather Service Doppler radar indicated a line of strong thunderstorms moving southeast across Lake Erie. This line is expected to move across the area between 7:30 pm and 9 pm this evening. Strong wind gusts up to 50 mph and small hail are likely in some of these storms. There is also a potential for isolated occurrences of damaging wind gusts and large hail.”

NWS severe weather mention · Mercer County

Friday, May 8, 2026

1 SPC verified storm report

Thursday, April 16, 2026

3 SPC verified storm reports

“Tree down on wires. Time estimated from radar. (PBZ)”

SPC verified report · 5 NNW New Lebanon

“Tree down on wires. Time estimated from radar. (PBZ)”

SPC verified report · 2 SSW Greenville East

Wednesday, April 15, 2026

4 SPC verified storm reports — hail up to 1.75"

NEXRAD radar during the Wednesday, April 15, 2026 storm activity in Mercer County, Pennsylvania
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“Public shared a picture of ping pong ball size hail on social media. Time estimated based off radar. (PBZ)”

SPC verified report · 3 NE Fredonia

“Several reports of trees and wires down. Time estimated from radar. (PBZ)”

SPC verified report · Stoneboro

Tuesday, March 31, 2026

1 SPC verified storm report

Monday, March 30, 2026

4 SPC verified storm reports

NEXRAD radar during the Monday, March 30, 2026 storm activity in Mercer County, Pennsylvania
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“Tree down along 1 lane of North Liberty Road. Time estimated based on radar. (PBZ)”

SPC verified report · 3 NW Slippery Rock

Monday, March 16, 2026

3 NWS warnings — wind gusts up to 50 mph

“WHAT...South winds 25 to 35 mph with gusts up to 50 mph expected. WHERE...Portions of central, northern, and southern Delaware, northeast Maryland, central, northern, northwest, and southern New Jersey, and east central, northeast, and southeast Pennsylvania. WHEN...Until 2 AM EDT Tuesday. IMPACTS...Gusty winds will blow around unsecured objects.”

NWS severe weather mention · Mercer County

“WHAT...South winds 15 to 20 mph with gusts up to 50 mph. WHERE...Forest, Jefferson PA, Mercer, Venango, and Clarion Counties. WHEN...Until 11 AM EDT this morning. IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. ADDITIONAL DETAILS...A strong cold front will cross the region this morning.”

NWS severe weather mention · Mercer County

Sunday, March 15, 2026

4 NWS warnings — wind gusts up to 50 mph

“WHAT...South winds 15 to 25 mph with gusts up to 50 mph. WHERE...Forest, Jefferson PA, Mercer, Venango, and Clarion Counties. WHEN...Until 11 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

“WHAT...Southeast winds 15 to 30 mph with gusts up to 50 mph expected. WHERE...Forest, Jefferson PA, Mercer, Venango, and Clarion Counties. WHEN...Until 11 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

4 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...Southwest winds 20 to 30 mph with gusts up to 50 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...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

Thursday, March 12, 2026

3 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 15 to 25 mph with gusts up to 50 mph expected. 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. 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, December 30, 2025

1 NWS warning — wind gusts up to 50 mph

“WHAT...West winds 15 to 25 mph with gusts up to 40 to 50 mph. WHERE...Portions of northern Delaware, central, northern, northwest, and southern New Jersey, and east central and southeast Pennsylvania. WHEN...Until 4 PM EST this afternoon. 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

Friday, December 19, 2025

1 NWS warning — wind gusts up to 50 mph

“WHAT...West winds 20 to 30 mph with gusts of 40 to 50 mph. WHERE...Portions of central and northern Delaware, northeast Maryland, central, northern, northwest, and southern New Jersey, and east central and southeast Pennsylvania. WHEN...Until 1 AM EST Saturday. 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, November 15, 2025

1 NWS warning — wind gusts up to 50 mph

“WHAT...West winds 20 to 25 mph with gusts of 40 to 50 mph expected. WHERE...Portions of central, northern, and southern Delaware, central, northern, northwest, and southern New Jersey, and east central and southeast Pennsylvania. WHEN...From 10 AM to 7 PM EST Sunday. 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, PA?

The most recent recorded event was in September 2026. Official NWS and SPC records show 56 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.

Did it hail in Mercer County recently?

Yes — 3 hail reports in the last 12 months, with hail up to 1.75" 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 Mercer 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.

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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 HailyAPI 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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