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Storm ActivityNew York Storm ActivityJefferson County, NY
New York · Official NOAA Storm Data

Jefferson County Hail Map & Storm Reports

Hail, wind, and tornado reports from official NOAA sources (NWS & SPC) · Last 12 months · Updated Sep 14, 2026

Has it hailed in Jefferson County, New York recently? Official National Weather Service (NWS) and Storm Prediction Center (SPC) records say yes: 2 hail reports with hail up to 1.5", among 30 severe weather events logged here in the last 12 months, together with 28 high-wind reports with gusts up to 60 mph. The most recent recorded storm activity was on Aug 14, 2026. This page updates daily: every event comes straight from official NOAA data — no estimates, no modeling, just the record.

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

Jefferson County hail map

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

30
Events (12 mo)
2
Hail
28
Wind
0
Tornado
1.5"
Max hail
60
Max wind (mph)
Aug 14, 2026
Most recent

What the radar showed

Radar snapshot during the Jun 25, 2026 hail event near 1 NNE Ellisburg, Jefferson County, New York, with NWS warning polygons
NEXRAD radar at the moment of the Jun 25, 2026 hail event (1.5") near 1 NNE Ellisburg. 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.

Hail history for an address in Jefferson County

See address-level storm exposure — verified hail and wind reports plus official warning boundaries around any specific property, including the most recent 30 days. Free account, takes under a minute.

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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.

Friday, August 14, 2026

2 SPC verified storm reports

NEXRAD radar during the Friday, August 14, 2026 storm activity in Jefferson County, New York
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“Multiple reports of trees in Carthage. (BUF)”

SPC verified report · 1 N West Carthage

“Multiple trees down in Natural Bridge. (BUF)”

SPC verified report · 1 NNW Natural Bridge

Tuesday, June 30, 2026

6 SPC verified storm reports

NEXRAD radar during the Tuesday, June 30, 2026 storm activity in Jefferson County, New York
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“Trees and wires downed in the town of Alexandria Bay. Time estimated by radar. (BUF)”

SPC verified report · Alexandria Bay

“Widespread trees and power lines down in the Cape Vincent area. (BUF)”

SPC verified report · Cape Vincent

Monday, June 29, 2026

1 SPC verified storm report

NEXRAD radar during the Monday, June 29, 2026 storm activity in Jefferson County, New York
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“Report of a few trees and wires downed in the Town of Champion. (BUF)”

SPC verified report · 4 WSW West Carthage

Thursday, June 25, 2026

2 SPC verified storm reports — hail up to 1.5"

NEXRAD radar during the Thursday, June 25, 2026 storm activity in Jefferson County, New York
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“Social media reports. Hail damage to several vehicles and crop damage to a corn field. (BUF)”

SPC verified report · 1 NNE Ellisburg

“Several social media reports of large hail up to 1 inch in diameter relayed by a trained spotter. Location approximate... time based on radar. (BUF)”

SPC verified report · 1 NNE Ellisburg

Thursday, June 18, 2026

2 NWS warnings — wind gusts up to 55 mph

“WHAT...Southwest winds 20 to 30 mph with gusts up to 55 mph. WHERE...Erie, Niagara, Orleans, Monroe, Jefferson, Lewis, Genesee, Wyoming, Livingston, Ontario, and Chautauqua Counties. WHEN...Until 8 PM EDT this evening. IMPACTS...Strong winds will blow down trees and power lines. Scattered power outages are expected. Travel will be difficult, especially for high profile vehicles.”

NWS severe weather mention · Jefferson County

“WHAT...Southwest winds 20 to 30 mph with gusts up to 55 mph expected. WHERE...Jefferson and Lewis Counties. WHEN...Until 8 PM EDT this evening. IMPACTS...Strong winds will blow down trees and power lines. Scattered power outages are expected. Travel will be difficult, especially for high profile vehicles.”

NWS severe weather mention · Jefferson County

Wednesday, June 17, 2026

1 NWS warning — wind gusts up to 55 mph

“WHAT...South winds 20 to 30 mph with occasional gusts of 45 to 55 mph expected Thursday morning, becoming southwest Thursday afternoon. WHERE...Jefferson and Lewis Counties. WHEN...From 6 AM to 8 PM EDT Thursday. IMPACTS...Gusty winds will blow around unsecured objects. A few trees and tree limbs will likely come down, resulting in isolated power outages.”

NWS severe weather mention · Jefferson County

Tuesday, March 17, 2026

1 NWS warning — wind gusts up to 50 mph

“WHAT...Southwest winds 25 to 35 mph with gusts up to 50 mph. WHERE...Jefferson and Lewis 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.”

NWS severe weather mention · Jefferson County

Monday, March 16, 2026

4 NWS warnings — wind gusts up to 60 mph

“WHAT...South to southeast winds 25 to 35 mph with gusts up to 60 mph expected this morning. Winds become southwest this afternoon with gusts up to 50 mph expected. WHERE...Jefferson and Lewis Counties. Strongest gusts are expected this morning along the northwest and northern face of the Tug Hill. Southwest winds will be countywide. WHEN...Until 8 PM EDT this evening.”

NWS severe weather mention · Jefferson County

“WHAT...South to southeast winds 25 to 35 mph with gusts up to 60 mph expected this morning. Winds become southwest this afternoon with gusts up to 50 mph expected. WHERE...Jefferson and Lewis Counties. Strongest gusts are expected this morning along the northwest and northern face of the Tug Hill. Southwest winds will be countywide. WHEN...Until 8 PM EDT this evening.”

NWS severe weather mention · Jefferson County

Sunday, March 15, 2026

2 NWS warnings — wind gusts up to 60 mph

“WHAT...South to southeast winds 25 to 35 mph with gusts up to 60 mph expected tonight. Winds become southwest Monday with gusts up to 50 mph. WHERE...Jefferson and Lewis Counties. Strongest gusts are expected tonight along the northwest and northern face of the Tug Hill. Strongest wind gusts Monday will be regionwide. WHEN...Until 8 PM EDT Monday.”

NWS severe weather mention · Jefferson County

“WHAT...South to southeast winds 25 to 35 mph with gusts up to 60 mph expected tonight. Winds become southwest Monday with gusts up to 50mph. WHERE...Jefferson and Lewis Counties. Strongest gusts are expected tonight along the northwest and northern face of the Tug Hill. Strongest wind gusts Monday will be regionwide. WHEN...From 5 PM this afternoon to 8 PM EDT Monday.”

NWS severe weather mention · Jefferson County

Saturday, March 14, 2026

2 NWS warnings — wind gusts up to 60 mph

“WHAT...South to southeast winds 25 to 35 mph with gusts up to 60 mph possible through late Sunday night. Winds become southwest later Monday with a few gusts up to 50 mph. WHERE...Jefferson and Lewis Counties. Strongest gusts Sunday night expected along the northwest and northern face of the Tug Hill. Strongest wind gusts Monday will be regionwide.”

NWS severe weather mention · Jefferson County

“WHAT...South to Southeast winds 25 to 35 mph with gusts up to 60 mph possible through late Sunday night. Winds become southwest later Monday with a few gusts up to 50 mph. WHERE...Jefferson and Lewis Counties. Strongest gusts Sunday night expected along the northwest and northern face of the Tug Hill. Strongest wind gusts Monday will be regionwide.”

NWS severe weather mention · Jefferson County

Monday, December 29, 2025

3 NWS warnings — wind gusts up to 60 mph

“WHAT...Southwest winds 30 to 50 mph with gusts up to 60 mph. WHERE...Jefferson County. WHEN...Until 1 AM EST Tuesday. IMPACTS...Strong winds will blow down trees and power lines. Scattered power outages are expected. Shallow rooted trees in a saturated ground will be more susceptible to falling. Travel will be difficult, especially for high profile vehicles.”

NWS severe weather mention · Jefferson County

“WHAT...Southwest winds 30 to 50 mph with gusts up to 60 mph. WHERE...Jefferson County. WHEN...Until 1 AM EST Tuesday. IMPACTS...Strong winds will blow down trees and power lines. Scattered power outages are expected. Shallow rooted trees in a saturated ground will be more susceptible to falling. Travel will be difficult, especially for high profile vehicles.”

NWS severe weather mention · Jefferson County

Sunday, December 28, 2025

4 NWS warnings — wind gusts up to 60 mph

“WHAT...Southwest winds 30 to 50 mph with gusts up to 60 mph expected. WHERE...Jefferson County. WHEN...From 7 AM Monday to 1 AM EST Tuesday. IMPACTS...Strong winds will blow down trees and power lines. Scattered power outages are expected. Shallow rooted trees in a saturated ground will be more susceptible to falling. Travel will be difficult, especially for high profile vehicles.”

NWS severe weather mention · Jefferson County

“WHAT...Southwest winds 30 to 50 mph with gusts up to 60 mph expected. WHERE...Jefferson County. WHEN...From 7 AM Monday to 1 AM EST Tuesday. IMPACTS...Strong winds will blow down trees and power lines. Scattered power outages are expected. Shallow rooted trees in a saturated ground will be more susceptible to falling. Travel will be difficult, especially for high profile vehicles.”

NWS severe weather mention · Jefferson 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 Jefferson County, NY?

The most recent recorded event was on Aug 14, 2026. Official NWS and SPC records show 30 severe weather events in Jefferson 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 Jefferson County recently?

Yes — 2 hail reports in the last 12 months, with hail up to 1.5" 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 Jefferson 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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