Sandstorms can be formed without any conditions.

Sandstorms don't need conditions, just dry climate, strong wind, bare ground and enough loose material.

1, dry climate: Sandstorms usually form in dry climate, because dry climate will dry the soil and sand on the land surface and be easily blown up by the wind.

2. Strong winds: Sandstorms need strong winds to blow up the dust on the ground and form sandstorms.

3. Bare ground: Sandstorms need bare ground to provide dust, so sandstorms usually occur in deserts, deserts or bare ground.

4. loose materials on the surface: sandstorms need enough loose materials, such as sand and dust, to form sandstorms.

To sum up, the formation of sandstorms requires certain conditions, including dry climate, strong wind, bare ground and loose materials.

Hazards of sandstorms:

1, affecting air quality. The dust brought by sandstorm will pollute the air, lead to the decline of air quality, and then do harm to human health. In sandstorm weather, people are prone to eye pain, cough and asthma.

2. Threatening traffic safety. Sandstorms will affect visibility and pose a threat to road traffic. In sandstorm weather, the incidence of road traffic accidents will increase greatly.

3. Harm the ecological environment. Sandstorms can destroy vegetation, especially in arid and semi-arid areas. Sandstorms will make the land drier and the vegetation more scarce.

4, affecting aviation safety. Sandstorms can also pose a great threat to aviation safety. Sandstorm will greatly affect the maneuverability and vision of aircraft, and also damage the fuselage.