Thunderstorm distance

Thunderstorm distance estimates how far a storm is by measuring the time between a visible lightning flash and the sound of thunder, providing a clear numeric result and practical guidance to help you respond to nearby lightning.

How it works

The Thunderstorm distance app calculates distance using the interval between the lightning flash and thunder along with the speed of sound; you can start an automatic timer when you see a flash or enter the number of seconds manually, and then view the computed distance in meters, kilometers, or miles.

Features

Thunderstorm distance supports both automatic detection and manual timing of flash-to-thunder intervals, displays distance in meters, kilometers or miles, shows a clear numeric readout with an optional brief explanation of how the estimate is calculated, and includes quick safety reminders to supplement official weather alerts.

Usage tips

For better accuracy measure from open areas away from loud noises, allow microphone access only if you enable automatic detection, and treat the estimate as a guideline while you follow official weather warnings and local safety advice.