Overview
- Météo‑France placed 26 departments from Brittany and Normandy to Île‑de‑France, Pays de la Loire and Poitou‑Charentes under orange vigilance for snow and ice through Tuesday morning.
- Forecasters expect 2–3 cm in the Paris region (locally 5), 3–7 cm in Normandy (up to 10 on higher ground), 5–10 cm in Brittany and Pays de la Loire, and up to 15 cm locally in Vendée and Charente‑Maritime.
- Authorities cut about 15% of flights at Paris‑Charles‑de‑Gaulle and Orly, reduced some TGV speeds to 200 km/h, and the Paris police prefecture activated level 3 of the snow‑ice plan.
- Road controls tightened in Île‑de‑France with an 80 km/h cap and heavy‑vehicle restrictions, Paris‑area buses were halted, and cumulative traffic jams reached record levels of roughly 850–1,000 km.
- School transport was suspended in multiple departments across Brittany and Normandy, and officials warned that marked frosts overnight would create hazardous black ice for the Tuesday commute.