The summer-time version of the Polar Vortex is about to arrive next week, bringing unusually cold air to the Great Lakes and much of central North America
Instead of warm summer-like conditions it will feel more like fall. Temperatures are likely to be 5-10°C below normal. This will keep daytime highs buried in the teens with overnight lows in the single digits.
http://www.local2.ca/ssm/viewarticle.php?id=15416
http://www.washingtonpost.com/blogs...cking-summer-return-in-eastern-u-s-next-week/
Instead of warm summer-like conditions it will feel more like fall. Temperatures are likely to be 5-10°C below normal. This will keep daytime highs buried in the teens with overnight lows in the single digits.
http://www.local2.ca/ssm/viewarticle.php?id=15416
http://www.washingtonpost.com/blogs...cking-summer-return-in-eastern-u-s-next-week/