The only certain thing about the winds on Black Rock Desert is they are unpredictable.
Thunderstorms can bring horrendous winds, rain, and blowing dust.
Or it might be very calm and pleasant. Dust devils are common even when the winds are mild. You need to prepare for strong winds, because they can arrive unexpectedly. Do not leave your aircraft unattended without using your tie-downs. Aircraft not tied down must park well away from other aircraft.