Ohio lightning map
Ohio gets a steady run of warm-season thunderstorms as Gulf moisture and passing fronts converge over the Ohio Valley and Great Lakes.
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Detected from NOAA GOES-19 GLM satellite data. Aggregate count for Ohio — your exact location and alerts live in the app.
About lightning in Ohio
Ohio lies where the Ohio Valley storm track meets Great Lakes influence, bringing frequent summer thunderstorms along cold fronts and the occasional fast-moving squall line. Activity peaks May through August. Storms here often arrive quickly and strike ahead of the rain. Knowing the distance to the nearest flash — and whether it is closing in — beats relying on the first roll of thunder.
- Thunderstorm days/yr
- 40
- US rank
- #24 of 50
- Peak season
- May–August
State thunderstorm-day normals are provisional (NOAA/NWS); per-city climate data is shown where a station normal is published.
Cities in Ohio
Lightning safety in Ohio
The safest call in Ohioisn’t how many storm days it averages a year — it’s how close the nearest strike is right now. Keep to the 30-30 rule: indoors within 30 seconds of thunder, back outside only 30 minutes after the last. StrikeCast shows that live distance and whether the storm is closing in, so you can move early.
StrikeCast app
Distance, trend & alerts — in your pocket.
GPS-precise distance to the nearest strike, live approaching/moving-away trend, and push alerts for every place that matters across Ohio — home, work, the kids' school.
Your exact location stays on your device. Never shared. Never tracked.
Lightning guides
Frequently asked
How many thunderstorm days does Ohio get?
Ohio averages about 40 thunderstorm days a year, versus a US average near 25 — roughly 1.6× the national norm. Activity peaks May–August.
Where does Ohio rank for lightning in the US?
By mean annual thunderstorm days, Ohio ranks #24 of 50 states. Rankings use NOAA/NWS climate normals; the live distance and trend on this page come from NOAA GOES-19 satellite data.
When is thunderstorm season in Ohio?
Lightning is most frequent May–August in Ohio.
How does StrikeCast track lightning in Ohio?
StrikeCast reads NOAA GOES-19 GLM (Geostationary Lightning Mapper) satellite data, updated continuously, to show how far away the nearest strike is and whether it is approaching or moving away. Save any place in Ohio in the free app to get a push alert when lightning closes in.