Hail Alert watches the storms near you and sends a notification the moment a hail threat comes within range — with the expected stone size, how far away it is, and where it's heading.
Android 1.0.0 is the current release. Hail threats are checked within 50 km of your location.
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A push notification the moment a hail threat is detected nearby, with expected stone size, distance and the window it's likely to hit.
See the threat area against your own location, its forecast path, and which direction it's tracking and how fast.
Current status sits on your home screen, so a glance tells you whether you're clear without opening anything.
Set a minimum hail size and a minimum confidence, and pick a 1, 6 or 24 hour alert window. Anything below your bar stays quiet.
Three steps, then the app does the watching.
Aligned with Bureau of Meteorology severe thunderstorm criteria.
Your location sets the 50 km circle the app watches. Threats outside that circle won't notify you, even if they're severe.
Choose the smallest hail size worth waking you, the confidence level you trust, and how far ahead you want warning. Send a test notification to see how it looks.
Hail Alert keeps checking in the background. When something crosses your thresholds, your phone tells you — and the widget shows the status the rest of the time.
Hail Alert retrieves its hail data from the Vaisala Xweather API and presents it in the app. Severity bands follow Bureau of Meteorology severe thunderstorm criteria.
Not yet. Android 1.0.0 is the current release; an iOS version is in development.
Threats are checked within 50 km of your location. Anything further away won't trigger a notification, even if it's severe.
Only if you want it to. A threat has to clear both your minimum hail size and your minimum confidence before a notification is sent.
Warning time depends on the storm — it's based on live radar detection, not a long-range forecast, so it can range from under an hour down to just minutes for fast-forming cells. Every alert shows the specific predicted time window for that storm, and we check for new threats every hour so you're notified as soon as one is detected, with no extra delay added on our end.
Yes. Send a test notification at any time, or preview a sample threat near your location to see exactly how a real one will look.
Your location is used to work out which hail threats are near you and nothing else.
Install Hail Alert and you'll know while there's still time to move the car.