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Storm Activity›Tennessee Storm Activity›Grainger County, TN
Tennessee · Official NOAA Storm Data

Grainger County Hail Map & Storm Reports

Hail, wind, and tornado reports from official NOAA sources (NWS & SPC) · Last 12 months · Updated Nov 2, 2026

Has it hailed in Grainger County, Tennessee recently? Official National Weather Service (NWS) and Storm Prediction Center (SPC) records say yes: 23 hail reports with hail up to 1", among 32 severe weather events logged here in the last 12 months, together with 9 high-wind reports with gusts up to 55 mph. The most recent recorded storm activity was on Sep 23, 2026. This page updates daily: every event comes straight from official NOAA data — no estimates, no modeling, just the record.

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

Grainger County hail map

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

32
Events (12 mo)
23
Hail
9
Wind
0
Tornado
1"
Max hail
55
Max wind (mph)
Sep 23, 2026
Most recent

What the radar showed

Radar snapshot during the Dec 18, 2025 wind event near Grainger County, Grainger County, Tennessee, with NWS warning polygons
NEXRAD radar at the moment of the Dec 18, 2025 wind event (55 mph) near Grainger County. 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.

Storm exposure for an address in Grainger County

Get a free report in your folder. A city is enough if you do not have a street.

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, September 23, 2026

1 NWS warning — hail up to 0.25"

“At 817 PM EDT, Doppler radar was tracking strong thunderstorms along a line extending from 7 miles northwest of New Market to 6 miles northeast of Knoxville. Movement was south at 20 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. Minor hail damage to vegetation is possible. Locations impacted include...”

NWS severe weather mention · Grainger County

Monday, September 21, 2026

1 NWS warning — hail up to 0.25"

“At 427 PM EDT, Doppler radar was tracking a strong thunderstorm over Tazewell, or 14 miles north of Rutledge, moving east at 20 mph. Hazard: Wind gusts up to 45 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...”

NWS severe weather mention · Grainger County

Friday, September 18, 2026

5 NWS warnings — hail up to 0.88"

NEXRAD radar during the Friday, September 18, 2026 storm activity in Grainger County, Tennessee
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 655 PM EDT, Doppler radar was tracking a strong thunderstorm over Jefferson City, moving southeast 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...”

NWS severe weather mention · Grainger County

“At 647 PM EDT, Doppler radar was tracking a strong thunderstorm near Rutledge, moving southeast at 15 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...”

NWS severe weather mention · Grainger County

Thursday, August 13, 2026

1 NWS warning — hail up to 0.25"

“At 1256 AM EDT, Doppler radar was tracking a strong thunderstorm near New Tazewell, or 10 miles south of Middlesboro, moving south at 20 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...”

NWS severe weather mention · Grainger County

Wednesday, August 12, 2026

4 NWS warnings — hail up to 0.25"

NEXRAD radar during the Wednesday, August 12, 2026 storm activity in Grainger County, Tennessee
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 1043 PM EDT, Doppler radar was tracking a strong thunderstorm near Rutledge, moving east at 35 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...”

NWS severe weather mention · Grainger County

“At 1038 PM EDT, Doppler radar was tracking a strong thunderstorm near Sneedville, moving east at 35 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... Rogersville, Sneedville, Bean Station, Surgoinsville, Mooresburg, St.”

NWS severe weather mention · Grainger County

Tuesday, August 11, 2026

1 NWS warning — wind gusts up to 50 mph

NEXRAD radar during the Tuesday, August 11, 2026 storm activity in Grainger County, Tennessee
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 922 PM EDT, Doppler radar was tracking strong thunderstorms along a line extending from 9 miles northeast of La Follette to near Rutledge to near Parrottsville. Movement was south 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...”

NWS severe weather mention · Grainger County

Sunday, August 9, 2026

1 NWS warning — wind gusts up to 50 mph

NEXRAD radar during the Sunday, August 9, 2026 storm activity in Grainger County, Tennessee
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 426 PM EDT, Doppler radar was tracking a cluster of strong thunderstorms near White Pine, or near Jefferson City, moving north at 10 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Morristown, Jefferson City, White Pine, Alpha, and Panther Creek State Park.”

NWS severe weather mention · Grainger County

Tuesday, July 28, 2026

2 SPC verified storm reports · 3 NWS warnings — hail up to 1"

NEXRAD radar during the Tuesday, July 28, 2026 storm activity in Grainger County, Tennessee
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“Quarter sized hail reported near Thorn Hill with secondhand reports of wind damage from neighbors. Time estimated radar. (MRX)”

SPC verified report · 4 ESE Thorn Hill

“At 354 PM EDT, Doppler radar was tracking a strong thunderstorm near Bean Station, or 11 miles west of Rogersville, moving southeast at 20 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. Minor hail damage to vegetation is possible. Locations impacted include...”

NWS severe weather mention · Grainger County

Saturday, July 18, 2026

1 NWS warning — wind gusts up to 50 mph

NEXRAD radar during the Saturday, July 18, 2026 storm activity in Grainger County, Tennessee
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 555 PM EDT, Doppler radar was tracking a strong thunderstorm over Maynardville, moving southeast at 10 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Knoxville, Morristown, Jefferson City, Maynardville, Rutledge, New Tazewell, Bean Station, Tazewell, Plainview, and New Market.”

NWS severe weather mention · Grainger County

Monday, July 6, 2026

1 NWS warning — hail up to 0.25"

“At 345 PM EDT, Doppler radar was tracking a strong thunderstorm over Morristown, moving northeast at 10 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...”

NWS severe weather mention · Grainger County

Sunday, July 5, 2026

1 NWS warning — wind gusts up to 50 mph

“At 223 PM EDT, Doppler radar was tracking a strong thunderstorm over Jefferson City, moving east at 10 mph. Hazard: Wind gusts up to 50 mph. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Morristown, Jefferson City, White Pine, New Market, Baneberry, Russellville, Panther Creek State Park, and Alpha.”

NWS severe weather mention · Grainger County

Friday, July 3, 2026

1 NWS warning — hail up to 0.25"

“At 913 PM EDT, Doppler radar was tracking a strong thunderstorm near Rutledge, moving north at 10 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... Rutledge and Thorn Hill.”

NWS severe weather mention · Grainger County

Tuesday, April 28, 2026

1 NWS warning — hail up to 0.5"

“At 206 AM EDT, Doppler radar was tracking a strong thunderstorm over New Tazewell, or 11 miles southeast of Middlesboro, moving northeast at 35 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...”

NWS severe weather mention · Grainger County

Thursday, April 16, 2026

1 NWS warning — hail up to 0.25"

“At 647 PM EDT, Doppler radar was tracking a strong thunderstorm near Plainview, or near Maynardville, moving east at 40 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. Minor hail damage to vegetation is possible. Locations impacted include...”

NWS severe weather mention · Grainger County

Saturday, March 21, 2026

1 SPC verified storm report · 2 NWS warnings — hail up to 1"

NEXRAD radar during the Saturday, March 21, 2026 storm activity in Grainger County, Tennessee
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 536 PM EDT, Doppler radar was tracking a strong thunderstorm over Rutledge, moving southeast at 30 mph. Hazard: Wind gusts up to 40 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...”

NWS severe weather mention · Grainger County

“At 458 PM EDT, Doppler radar was tracking a strong thunderstorm near New Tazewell, or 8 miles northwest of Rutledge, moving east at 30 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. Minor hail damage to vegetation is possible. Locations impacted include...”

NWS severe weather mention · Grainger County

Monday, March 16, 2026

1 SPC verified storm report

“Delayed Report: Multiple trees... especially cedar trees... snapped or uprooted by severe thunderstorm. (MRX)”

SPC verified report · 2 SSE Blaine

Thursday, December 18, 2025

3 NWS warnings — wind gusts up to 55 mph

NEXRAD radar during the Thursday, December 18, 2025 storm activity in Grainger County, Tennessee
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 1145 PM EST, Doppler radar was tracking gusty showers along a line extending from 6 miles northwest of Bean Station to 12 miles north of Smoky Mountains-Fontana Area. Movement was east at 45 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...”

NWS severe weather mention · Grainger County

“At 1138 PM EST, Doppler radar was tracking gusty showers along a line extending from Leatherwood to near Rutledge. 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...”

NWS severe weather mention · Grainger 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 Grainger County, TN?

The most recent recorded event was on Sep 23, 2026. Official NWS and SPC records show 32 severe weather events in Grainger 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 Grainger County recently?

Yes — 23 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 Grainger 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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