Originally Posted By: bbhero
One thing to add.... And I will say I had not thought of this... But it makes a whole lot of sense...
Very steep lapse rate... That day in November 87 at the top of that bridge elevated 70 feet in the air could have easily been at 32°F. Due to very steep lapse rate present with the atmosphere that day. The air aloft was much colder above than at the surface elevation. That is what can easily explain that phenomenon that day.
I remember in 2015 we had a snowstorm a couple of days earlier. Then a massive warm front pushed north. When I drove Rte 199 that night up and down those hills... Temperature would be 40°F at the top of those hills and 33°F at the bottom of those hills. Elevation change of 40-50 feet.
Certainly could have been the case in that storm of early November 87 due to very strong temperature drop with gain in elevation.
So, in all of this.... I will say that I was wrong about all that stuff. Rand and Wolf you all are correct. So, there we go. Hope you guys have had a good day.
Well normally there's a 3 degree change per thousand feet. And I was just going to refer you to the wiki about it. It's a standard bit of info to anyone in the science/engineering/chemistry field.
https://en.wikipedia.org/wiki/Wind_chill
If it were true, I'd ask you how many degrees does it lower it based on wind speed? Then I'd have something at absolute 0 and apply that wind speed to reduce the temperature even more...