The Nation’s Weather

…There is a Slight Risk of excessive rainfall over parts of the Southern
Plains on Wednesday and the Central Gulf Coast to the Southeast on
Thursday…

…There is a Slight Risk of severe thunderstorms over parts of the
Central/Southern High Plains, Southern High Plains, and the Southern
Plains on Wednesday…

A wave of low pressure over the Ohio Valley will move to the Lower Great
Lakes by Thursday and eastward to just off the Southeast Canadian Coast by
Friday morning. Moisture will surge northward over the Southern Plains,
producing showers and thunderstorms that will produce heavy rain.
Therefore, the WPC has issued a Slight Risk (level 2/4) of excessive
rainfall over parts of the Southern Plains through Thursday morning. The
associated heavy rain will create mainly localized areas of flash
flooding, with urban areas, roads, small streams, and low-lying areas the
most vulnerable.

Furthermore, severe thunderstorms will develop over parts of the
Central/Southern High Plains. Therefore, the SPC has issued a Slight Risk
(level 2/5) of severe thunderstorms over parts of the Central/Southern
High Plains through Thursday morning. The hazards associated with these
thunderstorms are frequent lightning, severe thunderstorm wind gusts,
hail, and a few tornadoes. However, there is an increased risk of hail,
two inches or greater, over the western regions of Kansas.

Moreover, a second area of severe thunderstorms will develop over parts of
the Southern High Plains. Therefore, the SPC has issued a Slight Risk
(level 2/5) of severe thunderstorms over parts of the Southern High Plains
through Thursday morning. The hazards associated with these thunderstorms
are frequent lightning, severe thunderstorm wind gusts, hail, and a few
tornadoes.

A third area of severe thunderstorms will develop over parts of the
Southern Plains. Therefore, the SPC has issued a Slight Risk (level 2/5)
of severe thunderstorms over parts of the Southern Plains through Thursday
morning. The hazards associated with these thunderstorms are frequent
lightning, severe thunderstorm wind gusts, hail, and a minimal threat of
tornadoes.

Rain will also develop over parts of the northern Mid-Atlantic and move
into parts of the Northeast and Great Lakes on Wednesday. Additionally,
showers and thunderstorms will develop over parts of the Upper Midwest,
Northern Plains, and Northern/Central Rockies. Further, showers and
thunderstorms will develop over parts of the Mid-Atlantic, Tennessee
Valley, and the Southeast, ending over the Ohio/ Tennessee Valleys and
parts of the Mid-Atlantic by Thursday morning.

On Thursday, the moisture flowing out of the Gulf of America will stream
over parts of the Central Gulf Coast, producing showers and thunderstorms
with heavy rain. Therefore, the WPC has issued a Slight Risk (level 2/4)
of excessive rainfall over parts of the Central Gulf Coast eastward into
the Southeast from Thursday into Friday morning. The associated heavy rain
will create mainly localized areas of flash flooding, with urban areas,
roads, small streams, and low-lying areas the most vulnerable.

Also, on Thursday, rain will develop over parts of the Upper Midwest to
the Northeast, ending over the Upper Midwest overnight. The rain will
linger over Northern New England through Friday morning. Moreover, more
scattered showers and thunderstorms will develop over parts of the Middle
Mississippi Valley, Southern Ohio Valley, and the Mid-Atlantic on Thursday.

Meanwhile, a front over the Pacific will move onshore over the Pacific
Northwest by early Thursday morning, moving eastward to the Northern High
Plains/Northern Rockies to the Great Basin by Friday morning. The system
will produce scattered rain over parts of the Northwest, expanding into
the Northern Intermountain Region by Thursday evening and into the
Northern Rockies by Friday.

Ziegenfelder

Graphics available at
https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php