
During a solar minimum, the jet stream’s usual Zonal Flow (a west–east direction) reverts to more of a Meridional Flow (a north-south direction) which is exaggerated further during a Grand Solar Minimum and explains why regions become unseasonably hot or cold and others unusually dry or rainy.
More all-time low temperatures records tumbled in Minnesota late last week, as the meridional jet stream flow (linked to low solar activity) continues to draw brutal Arctic air anomalously south.
The mercury sank low enough on Thursday, June 13 to prompt frost advisories for the Iron Range, Twin Ports, East Central MN and Douglas County - with both Hibbing and Hayward setting new all-time daily low temperature records:
- The city of Hibbing set a new low of -2.2C (28F) on Thursday- beating the previous record of -1.1C (30F) set in 1969 (solar minimum of cycle 19).
- While Hayward's new low of -0.6C (31F) smashed the old record of 1.7C (35F) from 2012.














Comment: Ice Age: Reasons to bet on a catastrophically cooling world See also: