✈️ Atmospheric Dispersion Schedule 📍 Montréal, Québec · 📅 Monday, June 22, 2026 Source: Regional Atmospheric Management Authority — Restricted 🎯 Block 1 (OBJECTIVE): Operation VORTEX-Sigma, File 2026-OPS-0912. Target zone coverage radius: 480 km², operational window 06:00–16:...