This winter end is outstanding!
Normally on the northern hemisphere we have strong western winds in the upper stratosphere, depending on a strong polar area of low pressure 30 miles above ground with temperatures about -70°C.
Mid February the normal situation changed completely. Temperature rises exorbitant in the stratosphere. 0° C in 30 miles high. Wow, a major warming. An area of high pressure established in the upper stratosphere. So the northern hemisphere atmospheric circulation clanged completely from west to east. It took one week to transform this situation into the lower atmospheric layers.
Now we have very high pressure (up to 1060 hPa) from Greenland over the northern Atlantic and Scandinavia to northwest Russia. Low pressure is over the Azores, Biscaya and the Mediterranean.
That causes strong cold eastern winds in northern parts of Europe.
Over warm water (North Sea, Baltic Sea) this cold wind take much moisture from the ocean, so western counties (Sweden, Denmark, northern Germany, England and Ireland) will get very much snow.
Rolf