…There is a Slight Risk of severe thunderstorms over parts of the
Central/Southern High Plains and Lower Mississippi Valley on Friday, over
parts of the Central/Southern High Plains on Saturday, and
Northern/Central Plains/Upper Mississippi Valley on Sunday…
…There is a Slight Risk of excessive rainfall over parts of the Southern
Plains and Middle/Lower Mississippi Valley on Friday, Tennessee
Valley/Central Gulf Coast/Southeast on Saturday, and Upper/Middle
Mississippi Valley and Northern/Central Plains on Sunday…
…There are Heat Advisories over southern Texas…
Moisture streaming northward over the Plains and a dryline over western
Texas will aid in creating showers and severe thunderstorms over parts of
the Central/Southern High Plains. Therefore, the SPC has issued a Slight
Risk (level 2/5) of severe thunderstorms over the Central/Southern High
Plains through Saturday morning. The hazards associated with these
thunderstorms are frequent lightning, severe thunderstorm wind gusts,
hail, and a minimal threat of tornadoes.
A second area of showers and severe thunderstorms will develop over the
Southern Plains. Therefore, the SPC has issued a Slight Risk (level 2/5)
of severe thunderstorms over parts of the Southern Plains through Saturday
morning. The hazards associated with these thunderstorms are frequent
lightning, severe thunderstorm wind gusts, hail, and a minimal threat of
tornadoes.
A third area of showers and severe thunderstorms will also develop over
parts of the Lower Mississippi Valley. Therefore, the SPC has issued a
Slight Risk (level 2/5) of severe thunderstorms over parts of the Lower
Mississippi Valley through Saturday morning. The hazards associated with
these thunderstorms are frequent lightning, severe thunderstorm wind
gusts, hail, and a minimal threat of tornadoes.
In addition, the showers and thunderstorms will create heavy rain over
parts of the Southern Plains and Middle/Lower Mississippi Valley.
Therefore, the WPC has issued a Slight Risk (level 2/4) of excessive
rainfall over parts of the Southern Plains and Middle/Lower Mississippi
Valley through Saturday 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.
On Saturday, the same set-up over the Southern Plains, moisture streaming
northward over the Plains, and a dryline over western Texas will create
showers and severe thunderstorms over the region. Therefore, the SPC has
issued a Slight Risk (level 2/5) of severe thunderstorms over the
Central/Southern High Plains from Saturday through Sunday morning. The
hazards associated with these thunderstorms are frequent lightning, severe
thunderstorm wind gusts, hail, and a minimal threat of tornadoes.
Moreover, showers and thunderstorms will develop over parts of the
Tennessee Valley/Central Gulf Coast/Southeast, creating heavy rain.
Therefore, the WPC has issued a Slight Risk (level 2/4) of excessive
rainfall over parts of the Tennessee Valley/Central Gulf Coast/Southeast
from Saturday through Sunday 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.
On Sunday, a weak front over the Northern Intermountain Region on Saturday
afternoon will advance eastward to the Northern Plains and Upper
Mississippi Valley, producing showers and severe thunderstorms over parts
of the region. Therefore, the SPC has issued a Slight Risk (level 2/5) of
severe thunderstorms over the Northern/Central Plains/Upper Mississippi
Valley on Sunday. The hazards associated with these thunderstorms are
frequent lightning, severe thunderstorm wind gusts, hail, and a few
tornadoes.
Furthermore, showers and thunderstorms will cause heavy rain over the
Upper/Middle Mississippi Valley and Northern/Central Plains. Therefore,
the WPC has issued a Slight Risk (level 2/4) of excessive rainfall over
parts of the Upper/Middle Mississippi Valley and Northern/Central Plains
on Sunday 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.
Meanwhile, onshore flow and a steady stream of upper-level energy over the
Pacific Northwest will trigger rain over parts of the Pacific Northwest
from early Saturday into Sunday.
Furthermore, a developing upper-level ridging over southern Texas will aid
in spawning Heat Advisories over southern Texas.
Ziegenfelder
Graphics available at
https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php