What signal is the cold wave blue warning?

The blue warning signal of cold wave is an early warning signal made by the meteorological department before the arrival of cold wave through meteorological monitoring, reminding people to avoid the cold wave and agriculture to minimize the losses caused by the cold wave. The blue warning signal of cold wave is the first level in the cold wave early warning signal.

Warning description:

1. China standard

Within p>48 hours, the minimum temperature will drop by more than 8℃, the minimum temperature will be less than or equal to 4℃, and the average wind power on land will reach more than 5; Or it has dropped by more than 8℃, the lowest temperature is less than or equal to 4℃, and the average wind power reaches more than 5, which may continue.

2. Issuing organization

The competent meteorological department of the State Council is responsible for the management of issuing, releasing and spreading the national cold wave warning signal. The local competent meteorological departments at all levels shall be responsible for the administration of the release, cancellation and dissemination of cold wave warning signals within their respective administrative areas.

Extended information:

Precautions for defense

1. Personnel should pay attention to adding clothes to keep warm, and tropical crops and aquaculture varieties should take certain cold and windproof measures;

2. Fasten the doors and windows, hoardings, scaffolding, temporary structures and other structures that are easily blown by strong winds, and properly arrange outdoor items that are easily affected by cold waves and strong winds;

3. The ship should take shelter from the wind in a sheltered place, and notify outdoor workers such as those working at high altitude and on the water to stop working;

4. Pay attention to the latest information about the gale cooling reported by the media so as to take further measures;

5. Be prepared for cold wave and windy weather in production.

Baidu Encyclopedia-Cold Wave Blue Warning