Archive for September 2017

September Equinox

September Equinox
As I write this, it’s hot!  Chicago is in the middle of a heat wave.  This is the 5th consecutive day of over 90 degrees at O’Hare. This is a record this late in the season.  It feels like July in September. September 22 marked the autumn equinox in the Northern Hemisphere, or the spring equinox... Read more »

So far, 2017 has been an active hurricane season

So far, 2017 has been an active hurricane season
Approaching the autumn equinox, we are just about halfway through the Atlantic hurricane season, which runs from June to December. Pictured above is what Hurricane Alice looked like to meteorologists in  December, 1954.  This black-and white radar image, so stark compared to today’s computer models and satellite imagery, still  shows the swirling pattern and the eye of... Read more »