Sorry but you can not have the cake and eat it too!<quoted text>Actually, the warming Arctic has meant less temperature differential between high & middle latitudes. This has caused the jet stream to be slower & "wavier" in the north-south direction. These are Rossby waves, & yes, they do affect the weather.
Whatever system you have, it tends to last longer & usually be more severe than usual. So heat waves, storms & cold snaps are all longer-lasting & more severe than they are usually. Try to read this, you might actually learn something:
If high hot temperatures proves Global Warming, then very low cold temperatures proves Global Cooling.