Why are cold waves more severe in the northern hemisphere than in the southern?

Answer 1

The reason that cold waves (also called "cold" or "storm" fronts) are more intense in the earth's northern hemisphere, is because there are more large landmasses than there are in the southern hemisphere. Although some of the earth's oceans may be far too cold to swim in, they are still relatively warm when compared to the air masses moving over them, and they have a moderating effect the overall temperature of those air masses. Whereas, when those air masses leave the oceans, and cross over a large landmass like North America or Europe and Asia, they can become progressively colder, making the weather fronts they produce much more intense and severe.

Answer 2

The distribution of land and sea has a marked effect upon the temperature,the interior of a land mass being subjected to extremes of heat and cold ,while the oceans and adjacent land areas enjoy more equable climatic conditions.
Land being a good absorber of heat,is also a good radiator of heat.Therefore, the diurnal variation(the difference between the maximum temperature and minimum temperature on a particular day) of temperature is larger on a land surface than on a sea surface.
In the same latitude,a coastal station will have a moderate climate whereas an interior place will experience extreme cold and hot condtions.
The same thing applies to Northern hemisphere where the land mass is more and to the Southern hemisphere where sea area is more.Moreover the sun will be shining over the other hemisphere in winter.
I think now you can infer why cold waves are more severe in the Northern Hemisphere particularly over interior places.

Answer 3

actually, there is no difference. you just notice more in the northern hemisphere because that is where the majority of the earth's landmass is located. the southern hemisphere has much more ocean and not as many people