Joined
·
27,866 Posts
Literally! 
I mentioned this quite a few years ago, but was struck by it again today.
Viewing NOAA Dopler radar in time lapse shows storming apparently form on, and then travel the Interstate highways from west to east with prevailing weather patterns during certain conditions. As usual, I first doubted my eyes, and second, my sanity, but hypothesized it might be possible due to much warmer micro-conditions of hot tarmac and auto exhausts. A one-time member, whose day job is as a meteorologist straightened me out; my eyes were OK, and possibly my sanity, storms do form on and travel along the Interstates. However, my hypothesis was just hot air,
the actual cause being exhaust particulate that encourages condensation to begin forming droplets.
I was reminded of this as it's now occurring. On NOAA's regional radar, in motion, it's clearly visible. There are two major interstates which transect NJ west to east; Route 80 in the northern part of the state, and Route 78 a bit further south. And in Pennsylvania storms have formed and are traveling along each. Further north is Route 84 just north of NJ, and the same thing can be seen occurring on it as well.
I mentioned this quite a few years ago, but was struck by it again today.
Viewing NOAA Dopler radar in time lapse shows storming apparently form on, and then travel the Interstate highways from west to east with prevailing weather patterns during certain conditions. As usual, I first doubted my eyes, and second, my sanity, but hypothesized it might be possible due to much warmer micro-conditions of hot tarmac and auto exhausts. A one-time member, whose day job is as a meteorologist straightened me out; my eyes were OK, and possibly my sanity, storms do form on and travel along the Interstates. However, my hypothesis was just hot air,
I was reminded of this as it's now occurring. On NOAA's regional radar, in motion, it's clearly visible. There are two major interstates which transect NJ west to east; Route 80 in the northern part of the state, and Route 78 a bit further south. And in Pennsylvania storms have formed and are traveling along each. Further north is Route 84 just north of NJ, and the same thing can be seen occurring on it as well.