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

Nassau County Hail Map & Storm Reports

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

Nassau County, New York has recorded tornado activity: official National Weather Service (NWS) and Storm Prediction Center (SPC) records list 1 tornado report among 65 severe weather events here in the last 12 months, alongside 15 hail reports with hail up to 0.5" and 49 high-wind reports with gusts up to 75 mph. The most recent recorded storm activity was in August 2026. This page updates daily: every event comes straight from official NOAA data — no estimates, no modeling, just the record.

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

Nassau County hail map

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

65
Events (12 mo)
15
Hail
49
Wind
1
Tornado
0.5"
Max hail
75
Max wind (mph)
August 2026
Most recent

What the radar showed

Radar snapshot during the Jul 3, 2026 wind event near 2 N Glen Cove, Nassau County, New York, with NWS warning polygons
NEXRAD radar at the moment of the Jul 3, 2026 wind event (75 mph) near 2 N Glen Cove. 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 Nassau County

Current NEXRAD radar over Nassau County, New York with recent storm report locations
Current radar over the Nassau 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.
August 2026 1 storm day · 2 SPC verified reports — tornado activity 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.

Monday, August 10, 2026

1 SPC verified storm report

“Large old oak tree down on home in Westbury. One minor injury. Time estimated by radar. (OKX)”

SPC verified report · Westbury

Saturday, August 8, 2026

1 SPC verified storm report

“Tree fell on a parked vehicle on Concord Avenue... with time estimated by radar. (OKX)”

SPC verified report · 1 SW Oceanside

Friday, August 7, 2026

2 NWS warnings — hail up to 0.5"

NEXRAD radar during the Friday, August 7, 2026 storm activity in Nassau 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.

“At 611 PM EDT, Doppler radar was tracking strong thunderstorms along a line extending from near Monsey to Oradell to Midtown Manhattan to The Verrazano Narrows Bridge to Keansburg to Holmdel. Movement was northeast 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.”

NWS severe weather mention · Nassau County

“At 611 PM EDT, Doppler radar was tracking strong thunderstorms along a line extending from near Monsey to Oradell to Midtown Manhattan to The Verrazano Narrows Bridge to Keansburg to Holmdel. Movement was northeast 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.”

NWS severe weather mention · Nassau County

Tuesday, July 21, 2026

2 NWS warnings — hail up to 0.25"

“At 400 PM EDT, Doppler radar was tracking strong thunderstorms along a line extending from Norwood to Brooklyn Heights. Movement was east at 25 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 outdoor objects is possible. Locations impacted include...”

NWS severe weather mention · Nassau County

“At 400 PM EDT, Doppler radar was tracking strong thunderstorms along a line extending from Norwood to Brooklyn Heights. Movement was east at 25 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 outdoor objects is possible. Locations impacted include...”

NWS severe weather mention · Nassau County

Saturday, July 18, 2026

2 NWS warnings — hail up to 0.25"

“At 811 PM EDT, Doppler radar was tracking a strong thunderstorm over Islip, moving northeast at 60 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 outdoor objects is possible. Locations impacted include...”

NWS severe weather mention · Nassau County

“At 811 PM EDT, Doppler radar was tracking a strong thunderstorm over Islip, moving northeast at 60 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 outdoor objects is possible. Locations impacted include...”

NWS severe weather mention · Nassau County

Friday, July 3, 2026

1 SPC verified storm report — wind gusts up to 75 mph

NEXRAD radar during the Friday, July 3, 2026 storm activity in Nassau 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.

“Corrects previous tstm wnd gst report from 2 N Glen Cove. Wxflow Station at Bayville. (OKX)”

SPC verified report · 2 N Glen Cove

Friday, June 12, 2026

3 NWS warnings — hail up to 0.25"

NEXRAD radar during the Friday, June 12, 2026 storm activity in Nassau 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.

“At 714 PM, Doppler radar was tracking strong thunderstorms along a line extending from Port Washington to Forest Hills to The Verrazano Narrows Bridge. Movement was 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 outdoor objects is possible.”

NWS severe weather mention · Nassau County

“At 714 PM, Doppler radar was tracking strong thunderstorms along a line extending from Port Washington to Forest Hills to The Verrazano Narrows Bridge. Movement was 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 outdoor objects is possible.”

NWS severe weather mention · Nassau County

Thursday, June 11, 2026

2 NWS warnings — hail up to 0.25"

“At 1126 PM EDT, Doppler radar was tracking a cluster of strong thunderstorms along a line extending from Dobbs Ferry to Fort Lee to Midtown Manhattan. Movement was 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 outdoor objects is possible. Locations impacted include...”

NWS severe weather mention · Nassau County

“At 1126 PM EDT, Doppler radar was tracking a cluster of strong thunderstorms along a line extending from Dobbs Ferry to Fort Lee to Midtown Manhattan. Movement was 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 outdoor objects is possible. Locations impacted include...”

NWS severe weather mention · Nassau County

Sunday, June 7, 2026

2 NWS warnings — hail up to 0.25"

“At 154 PM EDT, Doppler radar was tracking a strong thunderstorm over Jones Beach, moving southeast 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. Minor hail damage to outdoor objects is possible. Locations impacted include...”

NWS severe weather mention · Nassau County

“At 146 PM EDT, Doppler radar was tracking a strong thunderstorm over Flushing, moving southeast at 25 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 outdoor objects is possible. Locations impacted include...”

NWS severe weather mention · Nassau County

Friday, June 5, 2026

3 SPC verified storm reports — wind gusts up to 64 mph

NEXRAD radar during the Friday, June 5, 2026 storm activity in Nassau 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.

“Downed tree on Bethpage State Parkway southbound at Exit B4 Central Avenue. 1 right lane of 2 lanes closed. Time estimated by radar. (OKX)”

SPC verified report · 1 NNE Plainedge

Wednesday, May 20, 2026

4 NWS warnings — hail up to 0.5", wind gusts up to 50 mph

NEXRAD radar during the Wednesday, May 20, 2026 storm activity in Nassau 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.

“At 729 PM EDT, Doppler radar was tracking a cluster of strong thunderstorms over Mineola, moving east at 35 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 · Nassau County

“At 729 PM EDT, Doppler radar was tracking a cluster of strong thunderstorms over Mineola, moving east at 35 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 · Nassau County

Tuesday, March 17, 2026

4 NWS warnings — wind gusts up to 50 mph

“WHAT...West winds 20 to 30 mph with gusts up to 50 mph. Wind gusts will gradually subside to 35 mph through the morning. WHERE...Portions of southern Connecticut, northeast New Jersey, and southeast New York. WHEN...Until 8 AM EDT this morning. IMPACTS...Gusty winds will blow around unsecured objects. A few additional tree limbs could be blown down.”

NWS severe weather mention · Nassau County

“WHAT...West winds 20 to 30 mph with gusts up to 50 mph. Wind gusts will gradually subside to 35 mph through the morning. WHERE...Portions of southern Connecticut, northeast New Jersey, and southeast New York. WHEN...Until 8 AM EDT this morning. IMPACTS...Gusty winds will blow around unsecured objects. A few additional tree limbs could be blown down.”

NWS severe weather mention · Nassau County

Monday, March 16, 2026

1 SPC verified storm report · 16 NWS warnings — wind gusts up to 60 mph

NEXRAD radar during the Monday, March 16, 2026 storm activity in Nassau 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.

“WHAT...For the Wind Advisory, south winds 20 to 35 mph with gusts up to 55 mph, shifting west late tonight. Isolated gusts to 60 mph possible. For the Dense Fog Advisory, visibility one quarter mile or less in dense fog. WHERE...Portions of southern Connecticut and southeast New York. WHEN...For the Dense Fog Advisory, until 1 AM EDT Tuesday. For the Wind Advisory, until 4 AM EDT Tuesday.”

NWS severe weather mention · Nassau County

“WHAT...For the Wind Advisory, south winds 20 to 35 mph with gusts up to 55 mph, shifting west late tonight. Isolated gusts to 60 mph possible. For the Dense Fog Advisory, visibility one quarter mile or less in dense fog. WHERE...Portions of southern Connecticut and southeast New York. WHEN...For the Dense Fog Advisory, until 1 AM EDT Tuesday. For the Wind Advisory, until 4 AM EDT Tuesday.”

NWS severe weather mention · Nassau County

Sunday, March 15, 2026

2 NWS warnings — wind gusts up to 55 mph

“WHAT...South winds 15 to 25 mph with gusts up to 50 mph expected. Isolated gusts up to 55 mph. WHERE...Portions of southern Connecticut, northeast New Jersey, and southeast New York. WHEN...From 2 PM Monday to 4 AM EDT 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 · Nassau County

“WHAT...South winds 15 to 25 mph with gusts up to 50 mph expected. Isolated gusts up to 55 mph. WHERE...Portions of southern Connecticut, northeast New Jersey, and southeast New York. WHEN...From 2 PM Monday to 4 AM EDT 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 · Nassau County

Monday, February 23, 2026

4 NWS warnings — wind gusts up to 60 mph

“Bands of Heavy Snow Across the Area this Morning Several bands of very heavy snow will likely persist through mid- morning across the area with snowfall rates of 1 to 2 inches per hour, possibly locally higher. This combined with northerly wind gusts of 40 to 60 mph will produce blizzard conditions, making travel treacherous and potentially life-threatening.”

NWS severe weather mention · Nassau County

“Bands of Heavy Snow Across the Area this Morning Several bands of very heavy snow will likely persist through mid- morning across the area with snowfall rates of 1 to 2 inches per hour, possibly locally higher. This combined with northerly wind gusts of 40 to 60 mph will produce blizzard conditions, making travel treacherous and potentially life-threatening.”

NWS severe weather mention · Nassau County

Saturday, February 21, 2026

2 NWS warnings — wind gusts up to 60 mph

“WHAT...Blizzard conditions expected. Total snow accumulations between 15 and 20 inches, highest amounts across Long Island. Winds gusting as high as 55 mph with isolated gusts up to 60 mph. Gusts on the east end of Long Island could reach 65 mph. WHERE...Portions of southern Connecticut and southeast New York. WHEN...From 1 PM Sunday to 6 PM EST Monday.”

NWS severe weather mention · Nassau County

“WHAT...Blizzard conditions expected. Total snow accumulations between 15 and 20 inches, highest amounts across Long Island. Winds gusting as high as 55 mph with isolated gusts up to 60 mph. Gusts on the east end of Long Island could reach 65 mph. WHERE...Portions of southern Connecticut and southeast New York. WHEN...From 1 PM Sunday to 6 PM EST Monday.”

NWS severe weather mention · Nassau County

Friday, December 19, 2025

1 SPC verified storm report · 2 NWS warnings — wind gusts up to 67 mph

NEXRAD radar during the Friday, December 19, 2025 storm activity in Nassau 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.

“Mesonet Station XBAY - Bayville Station. (OKX)”

SPC verified report · 2 N Glen Cove

“WHAT...West winds 15 to 25 mph with gusts up to 55 mph. Isolated wind gusts of 60 mph are possible through early this evening. WHERE...Portions of southern Connecticut, northeast New Jersey, and southeast New York. WHEN...Until midnight EST 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 · Nassau County

Thursday, November 6, 2025

2 NWS warnings — wind gusts up to 60 mph

“WHAT...Northwest winds 15 to 25 mph with gusts 45 to 55 mph. Localized higher gusts up to 60 mph possible. WHERE...Portions of southern Connecticut, northeast New Jersey, and southeast New York. WHEN...Until 8 AM EST 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 · Nassau County

“WHAT...Northwest winds 15 to 25 mph with gusts 45 to 55 mph. Localized higher gusts up to 60 mph possible. WHERE...Portions of southern Connecticut, northeast New Jersey, and southeast New York. WHEN...Until 8 AM EST 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 · Nassau County

Friday, October 31, 2025

2 NWS warnings — wind gusts up to 50 mph

“WHAT...West winds 20 to 30 mph with gusts up to 45 mph expected. Isolated gusts of 45 to 50 mph are possible. WHERE...Southern Connecticut, northeast New Jersey, and southeast New York. WHEN...From noon today to midnight EDT tonight. IMPACTS...Gusty winds will blow around Halloween decorations and other unsecured objects. Tree limbs could be blown down and a few power outages may result.”

NWS severe weather mention · Nassau County

“WHAT...West winds 20 to 30 mph with gusts up to 45 mph expected. Isolated gusts of 45 to 50 mph are possible. WHERE...Southern Connecticut, northeast New Jersey, and southeast New York. WHEN...From noon today to midnight EDT tonight. IMPACTS...Gusty winds will blow around Halloween decorations and other unsecured objects. Tree limbs could be blown down and a few power outages may result.”

NWS severe weather mention · Nassau County

Thursday, October 30, 2025

4 NWS warnings — wind gusts up to 50 mph

NEXRAD radar during the Thursday, October 30, 2025 storm activity in Nassau 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.

“At 312 PM EDT, Doppler radar was tracking gusty showers along a line extending from Long Island City to near Canarsie to near Highlands. Movement was northeast at 35 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 · Nassau County

“At 312 PM EDT, Doppler radar was tracking gusty showers along a line extending from Long Island City to near Canarsie to near Highlands. Movement was northeast at 35 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 · Nassau 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 Nassau County, NY?

The most recent recorded event was in August 2026. Official NWS and SPC records show 65 severe weather events in Nassau 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 Nassau County recently?

Yes — 15 hail reports in the last 12 months, with hail up to 0.5" 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 Nassau 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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