Late Week Winter Storm

Reports from National Weather Service

Valid 7 am Thu Dec 06 2018 – 7am  Sat Dec 08 2018

Late week winter storm to bring ice and snow from parts of the Southern
Plains on Friday and eastward to the Appalachians by this weekend…

Heavy rainfall begins to impact Texas and the lower Mississippi Valley
on Friday…

Below to well below normal temperatures expected across the Great
Plains into the Midwest…

The short range period begins with rain across southern California coming
to an end during the day on Thursday, with low elevation rain and high
elevation snow showers also moving into parts of the Southwest and
southern Great Basin. East of the Rockies, showers (snow to the north and
rain to the south) are likely along a cold front stretching from the Great
Lakes to Texas. Light to moderate snow accumulations are possible on
Thursday downwind of the Great Lakes as well as in parts of the northern
and central Appalachians. This cold front will usher in a reinforcing shot
of cold air into the central states, with afternoon highs on Thursday and
Friday 10 to 25 degrees below normal, especially across the Texas
Panhandle and into Oklahoma.

The cold outbreak will set the stage for a winter storm developing by
Friday from eastern New Mexico into western Oklahoma and eventually points east. As the upper level system from the Western U.S. pushes eastward and moisture streams northward ahead of it, precipitation will increase in intensity across the Southern Plains. Accumulating snow and ice appears likely from eastern New Mexico to western Oklahoma on Friday with snow totals of 4 to 8 inches, with locally higher amounts possible especially across the Texas Panhandle. A swath of potentially significant ice is also forecast from roughly Lubbock, TX to near Oklahoma City, OK with
accumulations in excess of 0.10 to 0.25 inches possible. South of this
region, heavy rainfall is likely across eastern Texas into the lower
Mississippi Valley. As rainfall increases in intensity near a developing
area of low pressure in southeast Texas, flash flooding will become a
threat and WPC has highlighted much of southeast Texas within a slight to
moderate risk for excessive rainfall. This same system will push eastward
and continue beyond the short range period spreading hazardous wintry
weather from parts of the Mississippi Valley to the Appalachians, and
heavy rainfall across the Gulf Coast states and Southeast this weekend.

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