Wednesday, January 11, 2012

Arctic Invasion on the Way, But Won't Last Too Long for the Plains...

Those of us basking in 70+ degree weather in southern and central Texas today are in for an unpleasant surprise tomorrow morning (unless you've been following the weather).  An arctic cold front is currently blasting Southward through the central plains, as noted by the purple and blue shaded temperature gradient on the surface map below:

The front will progress all the way to the Gulf Coast by 6am CST tomorrow, as shown by the latest GFS computer model forecast below.  The lighter green shaded areas indicate temperatures around 15 degrees below normal:

A strong and gusty North wind will make it feel even colder on Thursday, with wind chill values in the 20s and 30s across most of Texas during the heat of the day.  Wind chill values aren't likely to get out of the teens across most of Oklahoma at the same time.

Some light accumulations of snow will take place along the Kansas/Oklahoma border and into southern Missouri and northern Arkansas tonight, but significant accumulations are not expected.  A Winter Weather Advisory is in effect for this region tonight.  Very light snow and flurries will be possible across much of the remainder of the Sooner State this evening and early tonight.

A more significant bout of wintry precipitation is expected across portions of the Midwest, Ohio Valley and into New England over the next couple of days.  We'll have more on that tomorrow...

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