CNN has this report on how Tuesday was the coldest November morning since 1976.

In fact, the freezing point was reached in all 50 states — including ours. Excerpt:

Every state in the Union had a place somewhere within its borders registering temperatures below freezing Tuesday morning.

That included Hawaii, where the temperature at Mauna Kea on the Big Island dropped to 31 degrees.

In Florida, it was in the upper 20s in the Panhandle and freeze warnings were in effect.

And it’s not over: Another surge of cold air is likely by Wednesday to Thursday in the Midwest and Northeast. The Southeast could see record lows Wednesday morning as temperatures drop into the teens and 20s.

The cause of this mayhem: Arctic air pouring over the relatively warm Great Lakes waters is producing extreme lake-effect snows. …

To keep things in perspective: As I write this at 3:30 p.m., it’s 75 degrees and sunny in Honolulu. Windward and mauka showers, too.

Baby, it’s cold on top of Mauna Kea.

Flickr: vkurland.