The Overall Temperature Trends

Here are trends up to December 18

Posted: Dec 6, 2018 1:22 AM
Updated: Dec 6, 2018 1:24 AM

Note the Arctic blast in the rest of the week to early weekend with temperatures way below normal.  We may see some signal digits by Friday night.

Note how, outside of a brief spurt where we get a bit above normal next Thursday, how below normal temperatures occur after that.  This is right up to December 18.

It does not look as cold as it looked a week ago for this period of December (looked like we may just get hammed by near/record cold with snow pack), it will still be wintry.

It appears that two things are keeping the brutal, record cold at bay. 

1.  Slightly lower pressures developing into western Canada.  If these pressures were higher, we could dislodge much more cold air.

2.  A burst of convection over the Indian Ocean.  This MJO Phases evolving will tend to dilute the opportunity for record cold.

Nonetheless, there is much more blue (below normal temperatures) on this map in our region & southeastward, then orange (above normal temperatures).  The blue is not as dark by December 18, signaling cold, but not bitter temperatures.

There are rain/snow, then snow opportunities next week to just before Christmas.

Article Comments

West Lafayette
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Warmer Temps and Multiple Rounds of Rain Ahead
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