Why are heavy snowfalls concentrated in Shandong Peninsula?
From December 16th to 19th, 2023, the heavy snowfall was concentrated on the Shandong Peninsula because of the Great Lakes effect.
Since December 16, 2023, Yantai and Weihai areas in Shandong have experienced extreme snowfall. This phenomenon is known in meteorology as the Great Lakes Effect. The Great Lakes Effect is when cold air encounters a large area of unfrozen water surface (lakes, seas). After obtaining water vapor and heat energy from it, the precipitation (mainly snow) formed on the windward coast is significantly stronger than that in the surrounding areas also affected by cold air. phenomenon. The Great Lakes Effect stems from analysis and research on the significantly stronger snowfall in the "Great Lakes" region of North America.
In China, only a small part of the northern Shandong Peninsula will experience Great Lakes effect snowfall. The reason is that the northern part of the Shandong Peninsula is surrounded by a large sea area. In December and January, the sea temperature (relative to cold air), water vapor and heat energy are obtained from the cold air as it passes by. In addition, the hilly terrain of the peninsula lifts the cold air, which intensifies snowfall in the northern coastal areas.
The key to the formation of the Great Lakes effect is the large water body in the path of the cold air. If this extreme snowfall is only caused by the cold flow effect, then none of the surrounding areas affected by the same cold wave will be so. The heavy snowfall cannot be explained.
Countermeasures for blizzard weather
1. Everyone should stay indoors as much as possible and do not go out.
2. If you are outdoors, stay away from billboards, temporary structures and old trees to avoid injury. When passing under bridges, eaves, etc., be careful to observe or take a detour to avoid injuring people due to melting ice falling off.
3. Non-motor vehicles should deflate their tires a small amount to increase the friction between the tires and the road.
4. Follow the instructions of the traffic police and obey the traffic diversion arrangements.
5. Pay attention to weather forecasts and traffic information to avoid travel delays due to suspension or closure of airports, highways, ferry terminals, etc.
6. When driving a car, drive slowly and keep a distance from the car in front. The vehicle should slow down in advance before turning and avoid slamming on the brakes. If possible, install anti-skid chains and wear tinted glasses.
7. After a traffic accident occurs, obvious signs should be set up behind the scene to prevent serial collisions.
8. If a power outage occurs, report it to the power department for prompt handling.