Canadian Air Invades the Southeast U.S.: The Movie

September 21st, 2014 by Roy W. Spencer, Ph. D.

One thing I don’t like about living in the southeast U.S. is the humidity. So, when the first really dry air arrives, it makes me happy. Just in time for the start of Fall. 🙂

Here’s an animation of the NAM-WRF 4 km model forecast of 2 meter (basically, surface) dewpoint temperature from this morning I put together from imagery produced by, showing the dramatic drop in humidity as the Canadian air invades most of the East and Southeast:

The time step is hourly through the 36 hour forecast (Monday evening) then 3 hourly through 60 hours (Tuesday evening).

Maybe I’ll call it Can Air (2014).

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