National Weather this Weekend

By: (WPC) Posted by Doug Meyers
By: (WPC) Posted by Doug Meyers

***Arctic front will bring coldest weather so far this season***

***Active weather pattern over the Southwestern U.S.***

***Sleet and freezing rain for the Southern Plains***

A highly amplified upper level flow pattern will allow for a large
trough to build over the Central and Eastern U.S. for the weekend.
A huge surface high behind a strong cold front will bring near
record cold temperatures for late November from the Great Plains
to the Ohio Valley. It will continue to be quite cold for Texas
and the Deep South this weekend with the front dropping into the
southern Gulf of Mexico. The mild weather is over for the East
Coast as well with the front moving off the coast Saturday
morning, and very cold weather is expected to arrive on Sunday.

The weather will be active from the Desert Southwest to the
Southern Plains with significant moisture over-running cold air at
the surface. A concentrated area of moderate precipitation is
expected over the Four-Corners on Saturday as a pronounced upper
level low slowly moves eastward. Deep moisture transport ahead of
this feature, interacting with the surface front, will allow for
periods of rain for the lower elevations of Arizona and New
Mexico, and heavy snow for the higher elevations, including Utah
and Colorado.

Elsewhere, widespread sleet and freezing rain is likely for much
of central and western Texas, along with parts of Oklahoma, as a
shallow layer of cold air surges under a warmer layer aloft. Most
of this precipitation should be light, but there may be some areas
that receive up to a quarter inch of ice accumulation. Lake
effect snow showers are also expected downwind of the Great Lakes
this weekend as the Arctic air flows over the warmer lake waters.


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