We have similar humps in the pavement on certain roads around here, but not as severe, maybe 2 or 3 inches up. I never realized it was the heat! Our older roads were concrete and thru the years have been covered with asphalt. It puckers up in the worst places.... like the apex of a curve. I've called the DOT to have them shave off the tops of the ones in the curves...citing a danger to motorists... ya know, if you use the word "safety" they
have to respond.
You can see the crack across the road in google maps. This particular one has humped up a lot since the last time goog came thru. The only thing you can do is aim for the inside of the curve, make the bike vertical at the last instant and go back into lean and end up wide on the curve... or go 30mph.
https://maps.google.com/?ll=34.07378...29.82,,0,19.29
The good news is just this month, they've gone thru and repaved the worst places, but not the whole road... now the road is 1/2mile new, 1/2 mile old for it's entire length.