Scattered heavy snow over parts of Central/Southern Rockies...

There is a threat of flash flooding and severe weather that moves
eastward each day from the Southern Plains to the Southeast from Thursday
to Saturday.

here is a Moderate Risk of excessive rainfall over parts of the
Southeast on Friday.

A front extending from the Upper Great Lakes to the Southern High Plains
on Thursday evening moves eastward to the Lower Great Lakes, Mid-Atlantic,
and Central Gulf Coast by Saturday evening. Moisture pooling along the
front will aid in developing showers and severe thunderstorms over parts
of the Central/Southern Plains and Middle Mississippi Valley. Therefore,
the SPC has issued a Slight Risk (level 2/5) of severe thunderstorms over
parts of the Southern Plains through Friday morning. The hazards
associated with these thunderstorms are frequent lightning, severe
thunderstorm wind gusts, hail, and a few tornadoes. Additionally, there is
an increased threat of hail two inches or greater over parts of the area.

Moreover, the front will create heavy rain over parts of the Southern
Plains. Therefore, the WPC has issued a Slight Risk (level 2/4) of
excessive rainfall over parts of the Southern Plains through Friday
morning. The associated heavy rain will create mainly localized areas of
flash flooding, with urban areas, roads, and small streams the most
vulnerable.

In addition, the associated upper-level energy will produce scattered
heavy snow over parts of the Central/Southern Rockies through overnight
Friday. Further, the same upper-level energy will also create rain and
higher-elevation snow over parts of Central/Southern California, the Great
Basin, and the Southwest from Thursday evening into Friday evening. 

On Friday, as the system moves eastward, showers and thunderstorms will
expand into the Ohio, Middle/Lower Mississippi, and Tennessee Valleys,
along with the Southeast and Central/Southern Appalachians. The threat of
excessive rainfall increases over parts of the Southeast. Therefore, the
WPC has issued a Moderate Risk (level 3/4) of excessive rainfall over the
Southeast from Friday into Saturday morning. The associated heavy rain
will create numerous areas of flash flooding. Furthermore, many streams
may flood, potentially affecting larger rivers.

Additionally, showers and severe thunderstorms will develop over parts of
the Southern Plains to Southeast. Therefore, the SPC has issued a Slight
Risk (level 2/5) of severe thunderstorms over parts of the Southern Plains
to the Southeast from Friday into Saturday morning. The hazards associated
with these thunderstorms are frequent lightning, severe thunderstorm wind
gusts, hail, and a few tornadoes. Additionally, there is an increased
threat of hail two inches or greater over parts of the Southern
Plains/Lower Mississippi Valley.

Moreover, the system will produce light to moderate snow over parts of the
Upper Great Lakes on Friday, extending into the Great Lakes on Saturday.
Rain will develop South of the snow in parts of the Great Lakes, mainly
changing over the snow by Saturday evening.

On Saturday, the threat of excessive rainfall and severe thunderstorms
move east into the Mid-Atlantic and Southeast. Therefore, the WPC has
issued a Slight Risk (level 2/4) of excessive rainfall over parts of the
southern mid-Atlantic on Saturday. The associated heavy rain will create
mainly localized areas of flash flooding, with urban areas, roads, and
small streams the most vulnerable.