Alaskan Cold: UPDATE 19 December

UPDATE: 19 December 2008
Not much change...except to tweak lows downward for Monday morning. This is some REALLY cold air with afternoon highs 20-30 below zero observed in western Canada on Friday!
Monday morning lows will range from single numbers in northern and normal colder areas to low to mid teens south of the river. Be sure your pipes are wrapped for this one.

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UPDATE: 18 December 2008
The next arctic intrusion will race through Texoma Saturday. Unlike the December 14-17 cold snap, I do not expect much in the way of cloud cover this time. This means overnight lows will get colder: some of the coldest spots may reach 8 degrees north of the Red River, the bulk of Texoma should fall in between 11 and 19 degrees.

That’s still plenty cold…and will likely make the morning of Dec 22nd(Monday) the coldest for many Texoma locations so far this winter season.

As for record cold, there’s little risk of that: December 22, 1989 saw -1 degrees in Ardmore, while the record low for December 22 at the North Texas Regional Airport is 3 degrees (1983). Both records should remain intact.

As to Christmas Eve and Christmas, it looks dry and seasonably cool; the earlier indication of possible precipitation Christmas Eve has fizzled in the longer range pattern indicators. So, there's very little hope of snow for Santa.


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UPDATE: 17 December 2008
Not much has changed since yesterday's post. This front will roll through Saturday evening with perhaps a very brief shot of precipitation; but clear skies (as opposed to clouds with the most recent event) and the very cold nature of this air should make Monday morning the coldest one so far this winter.

Another system indicated by one model shows rain or freezing rain for Christmas Eve...but another model shows warm and dry. I'm tending towards the colder wetter solution as it's more consistent with yesterday's computer output. It's also more in line with the current pattern of active weather changes between warmer and colder. Either way, the chances for snow look remote at best for Christmas.

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16 December 2008

A warming trend Wednesday through Saturday will be cut short by another shot ‘o cold. This time, we can thank Alaska for an expected pre-Christmas chill.

Computer models have been quite consistent in advertising this frontal passage; there is some chance of frozen precipitation but clearing skies will likely make for even colder overnight lows. It should be very windy and cold on December 21st (Sunday) followed by frigid morning lows on December 22nd and 23rd.

Santa’s helpers will have no problem dressing for the season behind this new chill maker.
Take Care,
Steve LaNore
Chief Meteorologist
KXII-TV
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