View Spark^™

About Spark™

Spark™ Your Personal Lightning Detector

WeatherBug’s exclusive feature turns your device into a real-time lightning detector and safety status indicator — so you know exactly how close danger is, before it gets too close.

How Spark™ Works

Follow Mode: Uses your device’s location to track lightning risk wherever you go.
Fixed Location Mode: Monitors a set location of your choice — home, office, ballfield, campsite.
Precise Distance: Get the exact distance between you (or your chosen location) and the nearest detected lightning strike.

Why It Matters

Lightning moves fast and strikes farther from a storm than most people expect. Spark™ replaces guesswork with the exact distance — so you always know when it’s time to head inside.

Lightning Index

Lightning Recency:

< 5 min
5 - 15 min
15 - 30 min

Threat:

No Lightning Nearby
Distance:30+ miles
Safety Tip:Remain alert as storms can form with little notice. Stay tuned to see if storms are approaching.
Monitor Storms
Distance:20-30 miles
Safety Tip:You are not at immediate risk, but frequently check WeatherBug to see if storms are moving towards you. Be aware that new storms can also form with little notice.
Storms Approaching
Distance:10-20 miles
Safety Tip:Stay alert and frequently check WeatherBug to see if storms are moving toward you. Be mindful that new storms can also form with little notice.
Seek Shelter Now!
Distance:<10 miles
Safety Tip:Remain in a safe area until there has been no lightning within 10 miles of this location for 30 minutes. Please be aware that lightning activity can remain high even when a storm is moving away from your location. Even if rain has stopped, do not leave your safe area until WeatherBug indicates that lightning is more than 10 miles away from this selected location.

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