Spring sandstorm prevention and emergency knowledge

The weather phenomenon where the wind blows dust and sand from the ground into the air, causing horizontal visibility to be less than 1 kilometer, is called a sandstorm, which often occurs in spring in northern China. When sandstorms occur, the sky is cloudy and yellow, which has a significant impact on aviation, transportation, and animal husbandry production, and poses a threat to people's health.

1. Sandstorm warning signal system

① Yellow warning signal for sandstorms

Within 12 hours, there may be sandstorm weather (visibility less than 1000 meters), or sandstorm weather may have occurred and may continue.

② Strong sandstorm orange warning signal

Strong sandstorm weather (visibility less than 500 meters) may occur within 6 hours, or strong sandstorm weather may have occurred and may continue.

③ Special strong sandstorm red warning signal

Within 6 hours, there may be extremely strong sandstorm weather (visibility less than 50 meters), or extremely strong sandstorm weather may have occurred and may continue.

2. Protective measures

Pay special attention to listening to the weather forecast.

Wear masks, scarves, etc. when going out.

Close the doors and windows, and secure the external structures.

Drink plenty of water and eat light food.

Residents in hazardous areas or dangerous buildings should be transferred to a safe place.

Kindergartens, schools, and units should take temporary measures and suspend classes or operations if necessary.

Affected airports, highways, and ferry terminals should pay attention to traffic safety and temporarily close or suspend flights if necessary.

3. Precautions

Do not purchase open-air food.

Try to minimize going out, pause outdoor activities, and stay in a safe place as much as possible.

When cycling or driving, slow down and stay away from trees and billboards.

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