11:00 PM Wednesday, May 20, 2026. The severe thunderstorm has crossed Long Island and exited to the east. But the damage it left behind is still being assessed — and in Yaphank, firefighters were still on scene at Longwood High School, where a bolt of lightning punched through the building and started a fire in the gymnasium ceiling.
Lightning Hits Longwood High School
The most dramatic single incident from tonight’s storm on Long Island unfolded in Yaphank, central Suffolk County, shortly before 10 PM.
Lightning struck Longwood High School — part of the Middle Country Central School District — sparking a fire in the gymnasium ceiling, according to the Suffolk County Fire Rescue and Emergency Services. The Yaphank Fire Department responded and was still working to fully extinguish the blaze at approximately 10:15 PM.
No injuries were reported. School is not in session at night, so the building was unoccupied when the strike occurred, but the structural damage to the gymnasium ceiling could affect operations when students return.
The strike serves as a vivid reminder that lightning is not merely a nuisance event in a storm of this magnitude. The same system that produced 60 mph wind gusts, quarter-sized hail, and flash flooding across the region tonight was also delivering high-energy lightning strikes to ground targets across Nassau and Suffolk Counties. Tall school buildings, athletic facilities, and structures with metal roofing are all high-risk targets.
As of late Wednesday evening, there was no official damage estimate or indication of when the gymnasium would be cleared for use. The school district had not yet issued a statement.
Storm Passes Long Island — But What It Left Behind
By 9 PM Wednesday, the severe thunderstorm watch issued by the National Weather Service for Long Island expired. The main storm cell had crossed the island and was pushing east toward the South Fork — the Hamptons, Shelter Island, and eastern Suffolk bore some of the last and hardest hits of the evening.
The tally, as of 11 PM:
Structural damage:
- Longwood High School gymnasium ceiling fire from lightning strike (Yaphank)
- Reports of downed trees in multiple Suffolk and Nassau communities
- Some trees reported landing on cars; no confirmed injuries from falling trees on Long Island
Roads:
- Minor road flooding reported in scattered locations across Nassau and Suffolk Counties
- No confirmed highway closures on Long Island as of 11 PM — unlike the catastrophic LIE flooding that occurred in Queens earlier in the evening (all lanes blocked at 188th Street during the height of the storm)
- 511NY advisories still active for some local roads; conditions improving as rain tapers off
Power:
- PSEG Long Island reporting near-100% service restoration as of approximately 9:30 PM — a better outcome than many feared going into a storm of this intensity
- Earlier in the evening, scattered outages were reported across western Nassau County as the storm cell passed through
- For customers still without power: 1-800-490-0075 or the PSEG Long Island outage map
How Long Island Escaped Worse — For Now
The relative lack of catastrophic Long Island-specific damage (compared to what happened in New York City) reflects two factors: geography and timing.
The storm cell that hit NYC at its peak — between 8:30 and 9:30 PM — was at its most intense in Brooklyn, Queens, and Staten Island. By the time it tracked east over Nassau and western Suffolk, it had begun to weaken slightly. The most severe 60 mph gusts and heaviest rain totals were concentrated over the western portions of the metro area.
Long Island also had the benefit of seeing what was coming. The dramatic shelf cloud photographed by residents along the Nassau-Suffolk border gave a visual warning of the storm’s approach. That visibility allowed for some pre-emptive precaution.
That said, the Yaphank lightning strike and ongoing road flooding reports show that Long Island was not unscathed. And forecasters note that the overnight hours through Thursday morning carry continued risk: residual showers, saturated soil that increases the chance of additional tree failures, and drainage systems still processing tonight’s rain load.
What Happened East of the Crossing
At Shelter Island — between the North and South Forks — multiple trees were struck by lightning earlier in the evening, with some reported on fire, along with localized power outages. The Shelter Island Fire Department responded to at least one lightning-caused fire. That event occurred around 8:15 PM, ahead of the main storm crossing the rest of Suffolk.
The timeline suggests the storm’s lightning activity was particularly intense in a narrow window as it moved east through central and eastern Suffolk. The Yaphank strike at Longwood High School fits that pattern — occurring well after the main storm cell’s passage over NYC, during the tail end of the watch period.
The LIRR Factor: First Storm Back from Strike
Tonight’s storm was the first major weather event since Long Island Rail Road service resumed Tuesday afternoon after a 4-day strike. The LIRR’s evening service was under pressure, with NJ Transit simultaneously suspended into Penn Station due to a brush fire near the Hudson tunnels — a cascading failure that congested the shared terminal.
As of 11 PM, there are no reports of complete LIRR service suspension due to storm damage on Long Island — though individual signals, grade crossing equipment, and sections of track subject to flooding may have caused local delays during the worst of the storm. Check MTA LIRR alerts for any residual morning impacts.
What Comes Next
The National Weather Service is forecasting a major temperature drop in the days ahead: after tonight’s heat-and-storm pattern (highs in the 90s), Long Island will see highs in the low to mid 60s Thursday through Saturday. Showers are likely Thursday, with Memorial Day weekend also looking wet.
The practical implications for storm damage recovery:
- Cooler temperatures reduce heat stress on already-battered infrastructure
- Continued showers on Thursday mean saturated-soil tree failure risk remains elevated — keep an eye on large trees near roads and power lines
- PSEG Long Island crews working overnight to address any remaining outages will do so in more favorable conditions than the peak-heat scenario of today
If you experienced storm damage to your property tonight — from a falling tree, flooding, or lightning — document everything with photos and timestamps before repairs begin. That documentation is essential for both insurance claims and any potential legal action.
School and Community Impact
Longwood High School serves students in the Middle Country Central School District, covering parts of Yaphank and surrounding communities in central Suffolk. The gymnasium fire will require a structural assessment before the space can be used again. With the school year drawing toward a close — and events like spring athletics, graduations, and end-of-year ceremonies typically scheduled in gym spaces — the timing of this damage is particularly disruptive.
Parents and students should monitor communications from the Middle Country CSD for updates on building status and any schedule changes.
Resources
- Storm damage / power outages: PSEG Long Island — 1-800-490-0075 | Outage Map
- Road conditions: 511ny.org | NYSDOT / Nassau and Suffolk DPW
- LIRR service status: MTA Alerts
- Emergency: 911 | Non-emergency: 311
If You Were Injured or Your Property Was Damaged
If tonight’s storm caused injury or property damage, you may have legal options — particularly if municipal infrastructure failure contributed to your loss. In New York, claims against the city or county require a 90-day Notice of Claim under General Municipal Law §50-e. Missing that deadline can permanently bar recovery.
- Free consultation — Law Office of Jason Tenenbaum, P.C. — Long Island and NYC accident attorneys; 24+ years of experience, $100M+ recovered
- (516) 750-0595 — Available 24/7
Sources
- Newsday — “Longwood High School building struck by lightning” (May 20, 2026)
- News 12 Long Island — Severe thunderstorm watch (May 20, 2026)
- ABC7 NY — NYC storm damage: flooding and downed trees (May 20, 2026)
- NWS New York — Severe thunderstorm warnings and advisories
- IEMBot New England — Shelter Island lightning/fire report, Suffolk County Fire Rescue
- PSEG Long Island outage map