Pennsylvania Lightning Strike Map

Track real-time lightning strikes and thunderstorm activity across Pennsylvania. Review recent optical-flash detections, map timestamps, and official warning links before making weather decisions.

2
detected flashes in last 24 hours
Last 7 days
58,025 detected flashes
Last detection
18 hours ago
Updated
just now

Recent detections from NOAA GOES East/West GLM. Pennsylvania. Provider and display latency vary; satellite markers are approximate optical-flash locations, not exact ground impacts.

Lightning flash heatmap of Pennsylvania for the last 24 hours, rendered from NOAA GOES East/West GLM satellite data.
Server-rendered heatmap of Pennsylvania lightning activity in the last 24 hours. Each gold glow is a flash detected by NOAA GOES East/West GLM. Updates every 5 minutes.
Map loading…
Bolts show recent NOAA GOES East/West GLM detections. Locations are approximate; provider and display latency vary. Lime = newest, red = 1-6h, grey = older.
7
Cities Tracked
13.0M
Population

Data sourced from NOAA GOES East/West Geostationary Lightning Mappers (GLM) and the Storm Prediction Center (SPC). For the broader live overview, open the lightning strike map for the last 24 hours.

About Lightning in Pennsylvania

Located at approximately 40°N latitude, Pennsylvania is bisected by the Appalachian Mountains, where western Pennsylvania sees Great Lakes-influenced storms while eastern regions experience Atlantic moisture-driven convection. Thunderstorm frequency varies within state boundaries, so this page does not publish an unsupported statewide annual average or national rank.

In Pennsylvania, maritime air masses interact with continental weather patterns during warm months. Peak thunderstorm activity occurs during May through August, when conditions align for the most frequent lightning strikes. With a population of 13.0 million residents, storm awareness and lightning safety are important considerations for anyone living in or visiting Pennsylvania.

Live map scope
24h
recent activity window
Not a historical state ranking

When Thunderstorms Peak in Pennsylvania

Thunderstorm season in Pennsylvania runs from May through August. Storms are typically driven by frontal systems and can develop rapidly during warm, humid afternoons. While the season is more compressed than in southern states, individual storms can be intense with frequent cloud-to-ground lightning.

Peak Season
May through August

Top Cities in Pennsylvania

Monitor lightning activity in these Pennsylvania cities

Philadelphia

PA

Pittsburgh

PA

Allentown

PA

Erie

PA

Reading

PA

Scranton

PA

Lancaster

PA

Lightning Safety in Pennsylvania

Know where to shelter and follow official warnings when storms approach Pennsylvania

Follow the 30-30 Rule

If the time between seeing lightning and hearing thunder is 30 seconds or less, seek shelter. Stay indoors for 30 minutes after the last thunderclap.

Stay Indoors During Storms

Have a shelter plan before storms reach Pennsylvania. Avoid windows and stay away from plumbing while indoors.

Monitor Lightning Activity

Use Lightning Tracker for supplemental situational awareness near Pennsylvania. Follow official warnings and seek shelter immediately when thunder is audible.

Outdoor Safety

If caught outside, avoid open fields, hilltops, and isolated trees. Seek shelter in a substantial building or hard-topped vehicle.

Useful Guides for Pennsylvania

These pages help visitors who search for maps, nearby strikes, and alert setup

Last 24 hours Pennsylvania strikes in the last 24 hours

Start with the 24-hour US overview, then use this Pennsylvania page for local strike counts and recent flashes.

 Radar Lightning radar near Pennsylvania

Compare live electrical detections with weather-radar context before opening the local Pennsylvania map.

 Near me How to check lightning near you in Pennsylvania

Use this guide when you want to know how fast nearby strikes can become a real safety problem in Pennsylvania.

 Map guide How to read a lightning map for Pennsylvania

Understand clusters, timing, and storm movement before relying on live mobile app alerts.

 Alerts Set lightning alerts in Pennsylvania

Choose a saved monitoring radius and understand app notification limits versus official warnings.

Pennsylvania Lightning FAQ

Fast answers for live maps, storm days, and lightning safety in Pennsylvania

Where can I see current lightning activity in Pennsylvania?

This page shows recent NOAA GOES East/West GLM optical-flash detections across Pennsylvania. Use official weather agencies for forecasts and warnings.

What is the 30-30 rule for lightning safety?

The 30-30 rule states: if the time between seeing lightning and hearing thunder is 30 seconds or less, seek shelter immediately. Stay indoors for 30 minutes after the last thunderclap before going outside.

How can I track lightning in Pennsylvania in real time?

Lightning Tracker uses NOAA GOES East/West GLM (Geostationary Lightning Mapper) satellite data to display recent lightning activity across Pennsylvania. The mobile app provides push notification alerts when storms approach your location.

Mobile app

Track Lightning in Pennsylvania Right Now

Download the mobile app for live alerts, then use the Pennsylvania hub, city pages, and lightning guides for local map and safety context.

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