Western Canada's historic heat wave is so far off the charts, it's like suddenly meeting a 10 foot tall human when you thought the tallest people were only 7 feet. We meteorologists immediately ask, How? Climate change? Stay with me to the end 🧵 1/

https://twitter.com/ScottDuncanWX/status/1409260376408178690?s=20

The jet stream is to blame for creating this incredible #heatdome. @pppapin offers a great explanation. And a virtually invisible spin of low pressure off the California coast is key to locking in the heat dome and roasting the coast 2/

https://twitter.com/pppapin/status/1407849632621764610?s=20