Panneaux routiers

A yellow diamond showing a vehicle tilted or 'HIGH WIND AREA' text in NWT means:

Panneau routier de Territoires du Nord-Ouest — Strong crosswinds common — high-profile vehicles should slow
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Bonne réponse : A. Strong crosswinds common — high-profile vehicles should slow

High-profile vehicle sway in crosswinds can force adjacent vehicles off the road or into opposing traffic.