Heavy lake-effect snow over parts of the western U.P. of Michigan and
lake-effect snow downwind from the Great Lakes; moderate to heavy snow
over the Southern Rockies.

There is a Slight Risk of excessive rainfall over parts of the Southern
Plains and Western/Central Gulf Coast.

There is a Slight Risk of severe thunderstorms over parts of southern
Texas.

A front extending from the Great Lakes to the Central Plains will move off
the Northeast Coast by Sunday evening. In the wake of the front,
upper-level energy moves across the Great Lakes and the Northeast through
Monday evening. The upper-level energy will create lake-effect snow
downwind from the Great Lakes. The heaviest lake-effect snow will be over
the western portion of the U.P. of Michigan from Saturday evening into
Sunday evening. A second area of heavy lake-effect snow will develop
downwind from Lake Ontario Sunday night into Monday. In addition, snow
will develop over parts of the Central Appalachians and the higher
elevations of the Northeast, likewise, from Sunday evening into Monday.

Moreover, an upper-level low over the Four Corners Region will produce
moderate to heavy snow over parts of the Central/Southern Rockies through
Sunday evening. The energy will also create snow and lower-elevation rain
over parts of the Great Basin, Southwest, and Southern Rockies through
Monday.

Meanwhile, a second front extending from the Southeast to southern Texas
will move off the Gulf Coast on Monday. With favorable upper-level flow,
showers and severe thunderstorms develop over parts of southern Texas.
Therefore, the SPC has issued a Slight Risk (level 2/5) of severe
thunderstorms over parts of southern Texas through Sunday morning.

The hazards associated with these thunderstorms are frequent lightning,
severe thunderstorm wind gusts, hail, and a few tornadoes. Further, there
is an increased threat of hail, two inches or greater, over South-Central
Texas.

Furthermore, the showers and thunderstorms will also have heavy rain over
parts of the Southern Plains/Western Gulf Coast. Therefore, the WPC has
issued a Slight Risk (level 2/4) of excessive rainfall over parts of the
Southern Plains/Western Gulf Coast through Sunday morning. The associated
heavy rain will create mainly localized areas of flash flooding, with
urban areas, roads, and small streams the most vulnerable.

On Sunday, the severe thunderstorm threat decreases slightly to a Marginal
Risk (level 1/5) along the Western/Central Gulf Coast through Monday
morning. Moreover, the showers and thunderstorms will produce heavy rain
over the Central Gulf Coast. Therefore, the WPC has issued a Slight Risk
(level 2/4) of excessive rainfall over parts of the Central Gulf Coast
from Sunday into Monday morning. The associated heavy rain will create
mainly localized areas of flash flooding, with urban areas, roads, and
small streams the most vulnerable. The threat of excessive rainfall ends
by Monday. However, showers and thunderstorms will develop over parts of
Florida through Monday evening.