Cross-polar flow will send cool air down the eastern spine of the Rockies and into the middle of the continent by the 2nd week of September. pic.twitter.com/AXwksgFoTR— Ethan Sacoransky (@blizzardof96) August 30, 2020
Cross-polar flow will send cool air down the eastern spine of the Rockies and into the middle of the continent by the 2nd week of September. pic.twitter.com/AXwksgFoTR