As the above images from earth.nullschool.net show, meridional (wavy) jetstream either pulls up very warm or very cold air causing a contrast of extremes as seen in Canada…and the UK where we have gone from late spring snow to a heatwave!
WINNIPEG — The city broke a 90-year-old record Thursday when temperatures hit 35.2 Celsius.
By Friday morning the thermometer in Winnipeg had dropped 20 C and in Churchill there was snow.
A Global News viewer sent the photo with the caption “What a beautiful Christmas morning. Except it’s May 6th. Have fun at work everyone!”
The good news for the northern Manitoba town is it’s supposed to warm up to 1 C, normal for this time of year.
Full story here
h/t Argiris Diamantis