Planes already in the air are being ordered to land immediately
Seeing posts that everything already airborne got waved off and told to land now. The actual ground-stop language I've read is about departures, with inbound flights handled case by case. AP live updates: https://apnews.com/live/ground-stop-aviation-flights-news-updates-11-13-2026
What the receipts say: Receipts Official sources never set the Bro-Meter.