…There is a Marginal Risk of excessive rainfall over parts of the
Southern Plains on Tuesday and Central/Southern Plains on Wednesday…
…There is a Slight Risk of severe thunderstorms over parts of the
Central/Southern Plains on Tuesday and the Southern Plains on Wednesday…
On Tuesday, a front extending from the Northern Plains/Upper Mississippi
Valley to the Central Plains/Central Rockies will move eastward to the
Upper/Middle Mississippi Valley and the Central Plains/Central Rockies by
Tuesday evening and dissipate overnight Tuesday. Also, on Tuesday, a
second front moving southward out of Central Canada will move eastward to
the Upper Great Lakes to the Middle Mississippi Valley and then westward
into the Central Plains by Thursday morning.
On Tuesday, moisture streams northward over the Central/Southern Plains,
intersecting the boundary over the Central Plains as a dryline develops
over the Southern High Plains. Showers and severe thunderstorms will
develop over the Southern High Plains/Central Plains along and ahead of
the front and east of the dryline. Therefore, the SPC has issued a Slight
Risk (level 2/5) of severe thunderstorms over parts of the Southern High
Plains/Central Plains through Wednesday morning. The hazards associated
with these thunderstorms are frequent lightning, severe thunderstorm wind
gusts, hail, and a few tornadoes. In addition, showers and thunderstorms
will develop over parts of the Upper/Middle Mississippi Valley and Great
Lakes.
Furthermore, the showers and thunderstorms will produce moderate to heavy
rain over parts of the Southern High Plains. Therefore, the WPC has issued
a Marginal Risk (level 1/4) of excessive rainfall over parts of the
Southern High Plains through Wednesday morning. The associated heavy rain
will create localized areas of flash flooding, affecting areas that
experience rapid runoff with heavy rain.
A third front extending from the Northeast to the Mid-Atlantic and then
southwestward to the Lower Mississippi Valley and Southern Plains will
move eastward off the Northeast/northern Mid-Atlantic Coast by overnight
Tuesday. The western end of the boundary will linger across the Southeast
through Thursday morning.
On Tuesday, showers and thunderstorms will develop along the boundary from
the southern Mid-Atlantic to the Lower Mississippi Valley/Central Gulf
Coast. In addition, strong to severe thunderstorms will develop over parts
of the southern Mid-Atlantic and a second area over the Central Gulf
Coast. Therefore, the SPC has issued a Marginal Risk (level 1/5) of severe
thunderstorms over parts of the southern Mid-Atlantic and Central Gulf
Coast through Wednesday morning. The hazards associated with these
thunderstorms are frequent lightning, severe thunderstorm wind gusts,
hail, and a minimal threat of tornadoes.
On Wednesday, showers and thunderstorms will develop along the boundary
over parts of the Upper/Middle Mississippi Valley to the Central Plains
westward into parts of the Great Basin. Moisture will continue to stream
northward over the Plains as showers and severe thunderstorms will develop
east of the dryline over 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 from Wednesday into Thursday morning. The hazards
associated with these thunderstorms are frequent lightning, severe
thunderstorm wind gusts, hail, and a few tornadoes.
Moreover, showers and thunderstorms will produce moderate to heavy rain
over parts of the Central/Southern Plains. Therefore, the WPC has issued a
Marginal Risk (level 1/4) of excessive rainfall over parts of the
Central/Southern Plains from Wednesday into Thursday morning. The
associated heavy rain will create localized areas of flash flooding,
affecting areas that experience rapid runoff with heavy rain.
Furthermore, showers and thunderstorms will develop on Wednesday along and
near the old boundary extending from the southern Mid-Atlantic to the
Central Gulf Coast/Southern Plains.
Meanwhile, upper-level energy over the Northern Rockies will trigger rain
and highest-elevation snow over parts of the area on Tuesday and Wednesday.
Ziegenfelder
Graphics available at
https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php
