HailSignal
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Hail alerts for businesses

Spot hail.Make the right call.

For businesses that are needed after hail or protect themselves from it: relevant hail alerts for your area. With location, storm track and – where available – estimated hail size, on your phone.

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By email and push. Matched to your rules.

HailSignal in 90 seconds
From the first signal to your alert.
HailSignal in action1:00
Short film · original voices, English subtitles

Who it’s for

One hail track. Many jobs.

HailSignal is for businesses that are needed after hail or protect themselves from it. Choose your field and see which settings fit.

Other fields, e.g. agriculture: alerts start at 20 mm and the warning time is short – talk to us.

  1. Your area.

    You choose where you want to hear about hail.

  2. Your threshold.

    You choose the hail size (in Germany: “(large) hail possible”) and confidence level.

  3. Your alert.

    HailSignal alerts you when your rules match.

Experiences

Voices from the field

Dent repair technicians on how HailSignal supports them on the road.

All voices from the field
Serdar Germany 0:45 Watch video

Serdar

HSH Hagelschadenhilfe

Dent repair
“Everywhere I went, I found hail straight away.”
Matteo Rossi Italy 0:20 Watch video

Matteo Rossi

Rossi PDR Hail Company

Dent repair
“Plan our work better and save valuable time.”
Joe USA 0:26 Watch video

Joe

Smith PDR Hail Company

Dent repair
“Knowing where hail hits makes all the difference.”

Original voices. Subtitles in your language.

Open video ↗

The data behind the analysis

Data sources for our analyses

Radar, weather models and supporting evidence from traceable sources. HailSignal analyses these data – each alert identifies its sources.

More data sources and their role

National weather services via MeteoAlarm

Warnings come from the respective national weather services. Their origin is retained with the evidence.

Radar sources under evaluation

These sources are used for observation and calibration. They do not currently generate customer alerts on their own.

Reference and geographic data

UCAR/ICECHIP provides ground references for separate comparisons. Maps, place names, time zones and warning boundaries use additional datasets; their attribution appears on the map and in the legal notice.

The providers supply source data. HailSignal produces the analyses and assessments.

Sources & usage information

Coverage

Where HailSignal keeps watch.

Weather data and evidence, with a clear view of what’s ready. Check whether your area is covered before you start.

  • Live

    Germany

    Nationwide via the German Weather Service’s hail flag, all year. Size as “hail possible” or “large hail possible”, without millimetres.

  • Live

    Switzerland & the Alps

    Within the Swiss radar network’s range, including nearby areas up to 150 km from a radar.

  • Live

    North America

    The contiguous USA and parts of southern Canada and northern Mexico within radar range.

  • Evidence source

    Official warnings from 14 countries

    European hail warnings support alerts as independent evidence.

  • In development

    Over 20 countries under observation

    We collect data and calibrate. Customer alerts start only after validation.

Swiss hail radar: 1 April to 30 September. Outside this season, this source provides no current hail estimates. Germany (DWD) and the US radar feed are not affected.

All countries in detail

Here’s what you get

What matters. In one alert.

Where is hail falling? How large is it estimated to be? Where is the storm heading? Get the information that helps you plan your next move.

Sample alertEmail & push

Tuesday, 1 September

HailSignalnow

Hail near Windisch

Estimated up to 61 mm. The storm is moving towards Embrach and Gottmadingen.

Hail size
~61 mm
Confidence
C2

Two sample views · Original map in German

Forecast storm track42 km/h · Northeast

Where is the storm heading?

Location and direction at a glance.

Example

One alert. Your field.

Once you choose your field, every first alert and update includes a line on what matters for you.

What to check: Hoods, roofs and trunk lids of vehicles in the track; dealerships and large car parks first.

Illustrative example. Hail size and storm track are estimates; C2 does not mean damage has been confirmed.

How alerts are created

Understanding an alert

Confidence, made clear.

Estimated hail size and confidence are assessed separately. So you can put each alert into context.

How large is the hail?

Class 2
20–<30 mm

Dents on vehicles, damage to thin glass possible.

Class 3
30–<45 mm

Roof tiles and solar modules at risk.

Class 4
45 mm and above

High damage potential.

How sure are we?

C1
Possible

An initial radar signal, not yet confirmed.

C2
Likely

Matching radar products or a second, independent piece of evidence.

C3
Very likely

With a ground observation; in Germany, two independent WarnWetter app reports.

C4
Confirmed

Four independent confirmations on site.

Large hail does not automatically mean high confidence. Downgrades are reported too.

How we check the evidence

Ready for the next hailstorm?

Your head start begins with an alert.

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$339per year

Excl. applicable taxes

Full pricing details