Before the hail
Arrival hint per site
When the track is heading for your lot, the alert gives direction, speed and the approximate arrival. You decide which vehicles go under cover.
Car dealers, rental & fleets
HailSignal shows whether a hail track is heading for your site, with direction, speed and an arrival hint. How much time is left depends on the track and is never guaranteed.
A free account is enough to see the map.

Before the hail
When the track is heading for your lot, the alert gives direction, speed and the approximate arrival. You decide which vehicles go under cover.
After the hail
With one rule per site, the map shows which lots were in the track. Dents start from about 0.8 in (20 mm); check those vehicles first.
Document
Each track has an evidence page and a PDF with time, area, confidence level and sources.
A suggestion for your first rule. You can change every value later.
Rules and alerts come with the annual subscription.
HailSignal · Hail
🇺🇸 United States · near Plano, TX
Hail size estimated up to ~2.4 in (61 mm; radar, class 4 of 4).
Confidence C2: sufficient radar evidence
Moving northeast at 26 mph.
Track: Plano → Allen → McKinney
On its current track the cell reaches your base in ~25 min.
What to check: Vehicles parked outside; while the storm is still approaching, move them under cover.
The arrival line only appears when the track is heading for your base.
$339 per year
Excl. applicable taxes
12 months from purchase, paid annually in advance. Automatically renews for another year unless cancelled before renewal.
A free account shows the storm map with every hail track up to 24 hours ago, plus the strongest hail days. Current tracks and alerts come with the annual subscription.