The heat wave

General Discussion
1

Every four years at about this time our nation suffers from a devastating heat wave. Does anyone want to take a stab at how this heat originates?

2

Sure, as soon as you take a stab at making a point.

3
Every four years at about this time our nation suffers from a devastating heat wave. Does anyone want to take a stab at how this heat originates?
does it have anything to do with the Pacific decadal oscillation?
4

I think it’s an influx of hot air. Seems to be centered around Cleveland and Philadelphia this time around.

5
I think it's an influx of hot air. Seems to be centered around Cleveland and Philadelphia this time around.
Best answer.
6
I think it's an influx of hot air. Seems to be centered around Cleveland and Philadelphia this time around.
Best answer. Agreed. And earlier this month it was centered in the Midwest.
7
Arctic Amplification (Extreme Weather): Jennifer Francis June 6, 2013 https://www.youtube.com/watch?v=tY0RdXmLGdU
Here's a fairly good short (3min) presentation, gotta put up with an accent, hope that's okay.
Science Journal - How Heat Wave form & Change in Jet Stream (Cause of Extreme Weathers) https://www.youtube.com/watch?v=C6DINh3dUOM
This one is a hour lecture with Q/A session, very informative, including consideration of uncertainties.
Heat Waves in a Changing Climate https://www.youtube.com/watch?v=b_9rP-MnDLc Published on Sep 4, 2013 Christopher Schar of the Institute of Atmospheric and Climate Science discusses the relationship of heat waves and changes in climate. He begins by discussing three historical heat waves, the North American Drought of 1988, the Chicago Heat Wave of 1995 and the Great European Heat Wave of 2003, and how these have impacted scientific perspectives on heat waves. He then discusses the variability hypothesis and provides related climate change scenarios. He concludes his talk by discussing the soil moisture threshold effect and some of the complexities of soil-moisture precipitation feedback.
8
Every four years at about this time our nation suffers from a devastating heat wave. Does anyone want to take a stab at how this heat originates?
Where do you get that idea of "every four years" from? Poking around at different sources I see where occasionally a 4 year periodicity seems present, but then it falls apart again. Particularly in recent decades.