…Winter storm to impact the central and southern Rockies and adjacent
High Plains going through the weekend…
…Areas of severe thunderstorms, heavy rainfall, and flash flooding will
be possible through Sunday from central and eastern Texas into the
Mid-South…
…Potentially record-setting warmth expected today across portions of the
Ohio Valley, Mid-Atlantic, and Northeast…
A winter storm associated with a strong upper-level trough and associated
closed low will cross areas of the central and southern Rockies today and
will begin spilling east out across adjacent areas of the High Plains by
early Sunday. Colder temperatures and areas of heavy precipitation will
yield heavy accumulating snowfall for the higher terrain, with specific
emphasis on the Sangre De Cristo range of south-central to southeast
Colorado into northeast New Mexico. Areas from the Front Range south all
the way into the Texas Panhandle will see snow develop and become locally
heavy as well as the storm system gradually ejects east out into the
southern Plains by later Sunday. Snowfall accumulations of as much as 4 to
8 inches are expected for locations away from the higher terrain and over
the immediate High Plains. However, accumulations of 6 to 12 inches can be
expected over the Rockies, with some isolated 12 to 18 inch amounts
expected over the Sangre De Cristo range.
The energy associated with this ejecting winter storm will also be
interacting with a cold front that will be slowing down and eventually
stalling out across areas of the South. As multiple waves of low pressure
gradually eject east out of the Rio Grande Valley and along this front,
the pooling of moisture and instability from the Gulf of Mexico should set
the stage for multiple rounds of heavy showers and thunderstorms. The
front which will extend across areas of central and eastern Texas into the
Mid-South, will support a threat of severe weather for today into Sunday
including a threat for locally damaging winds, large hail, and a few
tornadoes. The Storm Prediction Center has depicted a Slight Risk of
severe weather (level 2 of 5) across portions of central to eastern Texas
and adjacent areas of the Mid-South.
In addition to the severe weather threat, heavy rainfall is expected, and
areas of the Mid-South in particular may see locally several inches of
rain from instances of training showers and thunderstorms going through
early Sunday. This will drive a threat for flash flooding, and the the
Weather Prediction Center has accordingly depicted a Slight Risk (level 2
of 4) of excessive rainfall for this region. Adjacent areas of the Gulf
Coast states and the Southeast by later Sunday into Monday will also see a
threat of heavy showers and thunderstorms as low pressure finally
consolidates and lifts northeastward into the Mid-South.
Elsewhere, very mild temperatures are expected for many areas of the
northern and eastern U.S. as there continues to be a lack of cold air
dropping south from Canada. Potentially record-setting warmth is expected
for today across the Ohio Valley, Mid-Atlantic, and the Northeast where
temperatures will be as much as 15 to 25 degrees above average.
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