.Heavy snow over parts of Central Rockies Wednesday night into Thursday
and the Mogollon Rim and the San Juans Thursday night into Friday...

...There is an Enhanced Risk of severe thunderstorms over the Plains and
Mississippi Valley from Wednesday to Thursday...

...There is a Slight Risk of excessive rainfall over parts of the
Central/Southern Plains and Middle/Lower Mississippi Valley on Wednesday
and Thursday, extending into Southeast and Tennessee Valley on Friday...

A wave of low pressure along a front over Central Plains moves
northeastward to the Northeast by Friday. The storm will create a
significant and long-duration winter storm across the Central and Southern
Rockies beginning Wednesday, followed by a round of heavy snow for the
Southern Rockies and Four Corners region Thursday night. The winter storm
will spread heavy snow Wednesday night across the Central Rockies through
Friday, with snow expanding into the Southern Rockies beginning Thursday.
A second round of heavy snow will develop over the Four Corners late
Thursday and persist into the weekend.

Heavy snow across the Central/Southern Rockies will become heavy Wednesday
night across the Central Rockies with snowfall rates exceeding 2 inches
per hour possible (40-60%) in the Front Range Wednesday evening and
Thursday. The snowfall rates are expected (greater than 90%) to produce
more than 1 foot of snow across much of the Front Range, Foothills, Sangre
de Cristos, and San Juans. Locally, 2-4 feet of snow are possible
(20-30%).

The storm will significantly impact travel. The combination of heavy
snowfall rates and wind gusts exceeding 35 mph will cause blowing snow and
severely restricted visibility, especially along the I-25 urban corridor
and other mountain roads in the region. Travel will be difficult to
impossible. Expect road closures. Disruptions to infrastructure due to
power outages are also possible.

A second phase of the winter storm will impact the Four Corners Region
beginning Thursday night. Waves of heavy snow will affect the terrain
areas north of the Mogollon Rim and northeastward toward the San Juans and
southern Colorado Rockies. Snow probabilities for 8 inches are moderate to
high (greater than 50%). Localized totals above a foot are possible for
the higher terrain. Moreover, rain will develop over the lower elevations
of the Southwest and Southern Rockies.

Furthermore, overnight Wednesday, showers and severe thunderstorms will
expand along the front from the Central Plains/Middle Mississippi Valley.
Therefore, the SPC has issued an Enhanced Risk (level 3/5) of severe
thunderstorms over the Central Plains/Middle Mississippi Valley through
Thursday 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.

In addition, the showers and thunderstorms will create heavy rain over the
Central Plains/Middle Mississippi Valley. Therefore, the WPC has issued a
Slight Risk (level 2/4) of excessive rainfall over parts of the Central
Plains/Middle Mississippi Valley through Thursday morning. The associated
heavy rain will create mainly localized areas of flash flooding, with
urban areas, roads, and small streams the most vulnerable.

On Thursday, the showers and severe thunderstorms move south and eastward
into the Southern Plains/Lower Mississippi Valley. Therefore, the SPC has
issued an Enhanced Risk (level 3/5) of severe thunderstorms over the
Southern Plains and Middle/Lower Mississippi Valley from Thursday into
Friday morning.