KYIV – The chances of a missile attack on Kyiv that night were around 50%, according to the administrator of a social media channel monitoring Russian air raids.

His channel, Aeris Rimor — roughly derived from the Latin for Searcher of the Skies — is one of dozens sending real-time messages about incoming drones and missiles.

Ukrainians consult them to track potential Russian attacks, like people check weather applications for storms but with less certainty, shorter warning, and deadly stakes.