Grandinometro

Grandinometro is the Italian civic network for reporting hail and severe thunderstorms in real time. Join thousands of people and contribute to a shared map of what's really happening locally, municipality by municipality.

⚠️ Grandinometro is an independent civic project and is NOT affiliated with, sponsored, or approved by the Department of Civil Protection or any other public or government agency.

🌩️ REPORT IN SECONDS
See hail, tornadoes, strong winds, or flooding? Send a geolocated alert with a tap. Every report helps those around you.

📡 WEATHER RADAR
View precipitation radar based on public data from the Department of Civil Protection (Radar-DPC platform) to understand where storm cells are passing. Reports are automatically compared with the radar to increase reliability.
Official radar data source: Department of Civil Protection — https://www.protezionecivile.gov.it (Radar-DPC data under CC BY-SA 4.0 license).

🔔 CUSTOMIZED ALERTS
Receive notifications when hail is reported near you. You set the radius (2–50 km), the phenomena you're interested in, and a "quiet night" time slot.

📍 SAVED LOCATIONS
Save up to 3 important locations (home, work, camp) and receive alerts even when you're away.

🔗 SHARE
Share a report with a link featuring a preview on WhatsApp and Telegram.

❤️ INDEPENDENT PROJECT
Grandinometro is an independent civic project, free of advertising and without data sales. You can support it with a donation.

Map and radar readings are free; To create reports and save locations, you need an account (Google login or email).

Grandinometro is not an official warning system and does not replace communications from the Civil Protection Department or the competent authorities.
Radar data source: Department of Civil Protection — https://www.protezionecivile.gov.it (Radar-DPC, CC BY-SA 4.0).