HailSignal
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Coverage

Honest by build-out stage: where we alert today, where official warnings feed in – and where we are already collecting and calibrating. We only unlock new areas once our detection demonstrably performs there.

Live status

Our system works around the clock – here you can see when fresh data last arrived.

Europe
North America
Alerts live

Full alert chain

Detection, verification and alerting run in full operation here.

🇨🇭 Switzerland · Swiss radar network, plus nearby border areas in DE, FR, IT and AT within radar range (up to 150 km); no nationwide coverage of these neighbouring countries Swiss hail radar: 1 April to 30 September. Outside this season, this source provides no current hail estimates. The US radar feed is separate.🇺🇸 United States · contiguous United States excluding Alaska and Hawaii; nearby parts of Canada and Mexico within radar range
Official warnings

Official warnings feed in

Official hail warnings from these countries back our alerts as independent evidence.

🇩🇪 Germany🇨🇭 Switzerland🇦🇹 Austria🇮🇹 Italy🇫🇷 France🇸🇪 Sweden🇳🇴 Norway🇸🇮 Slovenia🇪🇪 Estonia🇬🇧 United Kingdom🇱🇺 Luxembourg🇷🇴 Romania🇭🇺 Hungary🇧🇪 Belgium
In build-out

Radar watch – collecting & calibrating

We already watch these areas every five minutes and measure our hit rate – alerts only start after the proof is in. A Europe-wide composite fills the gaps: together more than 20 countries are under watch.

🇩🇪 Germany🇮🇹 Italy🇦🇹 Austria🇩🇰 Denmark🇸🇪 Sweden🇫🇮 Finland🇳🇱 Netherlands🇸🇰 Slovakia🇨🇿 Czechia
An approved radar source does not mean complete detection or confirmed hail on the ground. Range, available data and your rule determine whether you receive an alert.
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How an alert is born →