Wednesday, February 2, 2011
Anatomy of an Arctic cold front: a visual of several weather variables
So, can you pick out the frontal passage? You'll see that the wind gusts spike, the temperature and dewpoint fall off the edge of a cliff, and the pressure bottoms out shortly before frontal passage. Note that the temp falls 15 degrees in just 30 minutes, then continues falling even further. The lowest pressure of 29.39" is very low (Memphis' average pressure over the course of a year is roughly 29.93").
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