Ride my see-saw

was a song by The Moody Blues – remember Nights in White Satin? Of course you don’t, you’re too young…(sigh).
But the temperatures in the eastern US are well above normal, but look at this map and you’ll see how temperatures in the west are very cold.

Temperature map for Saturday evening from Ohio State Univ.

Temperature map for Saturday evening from Ohio State Univ.

Here’s the see-saw – follow the lines which show the winds at 18,000 feet high – see the winds driving down deep into the west and moving northeast over the eastern US.

500 mb winds and vorticity (about 18,000 feet above sea level.

500 mb winds and vorticity (about 18,000 feet above sea level.

Here’s the temperatures and winds at 1 mile up (850mb pressure).

850mb (about one mile height) winds and temperature

We might see some of that colder air later next week or after it makes another pass toward us the following week – the beginnings of colder weather in general for the us easterners.

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