This one’s for all the weather nerds in the crowd. On MPR’s News Cut blog, Bob Collins has posted a timely and informative post on how jet contrails influence weather.
He’s got a few quotes from meteorologists on why jet contrails effect weather and even has a bit about how the temperature fluctuated from averages after the 9-11 World Trade Center attacks when planes were grounded:
He found that, for those three days, the average range between highs and lows at more than 4,000 weather stations across the US was 1 degree C wider than normal. In other words, contrails seemed to raise nighttime temperatures and lower daytimes ones.
Check out the post for links to the sources and pictures of the contrails over Minnesota today.