…Heavy snow over parts of the Olympic Peninsula/Cascades and moderate to
heavy snow over the Northern Intermountain Region/Northern Rockies…
…There is a Slight Risk of excessive rainfall over parts of the Southern
High Plains on Sunday, Central Gulf Coast on Monday, and Central Gulf
Coast/Southeast on Tuesday…
…There is a Slight Risk of severe thunderstorms over parts of the
Southern High Plains on Sunday and Southern Plains on Monday…
A front over the Pacific Northwest into Northern California will move
eastward to the Ohio, Middle/Lower Mississippi Valleys, and Southern
Plains by Tuesday evening. A second front extending from the Great Lakes
to the Southern High Plains will move eastward, and the front s eastern
end will dissipate overnight Monday over parts of the Northeast. A wave of
low pressure will develop along the western end of the boundary over the
Southern Plains overnight Sunday and moves to northeastward to Central
Canada by Tuesday evening while the boundary moves to the Great Lakes to
the Lower Mississippi Valley. In addition, a second wave of low pressure
will be over the Central Gulf Coast on Tuesday.
The Northwest front will create coastal rain over parts of the Pacific
Northwest into Northern Central California through early Monday. The
system will produce heavy snow over the Olympic Peninsula/Cascades through
Monday afternoon, followed by moderate to heavy snow on Tuesday. As the
front moves eastward, moderate to heavy snow will develop over parts of
the Northern Intermountain Region/Northern Rockies overnight Sunday into
Monday, then moderate snow over the region on Tuesday. Further, weak
onshore flow will aid in producing rain over parts of coastal Northwest
and Northern California on Monday into Tuesday.
Meanwhile, as the wave of low pressure moves northeastward over the
Southern Plains, moisture will stream northward over the area, producing
heavy rain. Therefore, the WPC has issued a Slight Risk (level 2/4) of
excessive rainfall over parts of the Southern High Plains through Monday
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.
Moreover, showers and severe thunderstorms will develop along and ahead of
the front over the Southern High Plains. Therefore, the SPC has issued a
Slight Risk (level 2/5) of severe thunderstorms over the Southern High
Plains through Monday morning. The hazards associated with these
thunderstorms are frequent lightning, severe thunderstorm wind gusts,
hail, and a few tornadoes. Additionally, there will be an increased threat
of severe thunderstorm wind gusts of 65 knots or greater over parts of the
Southern Plains.
Furthermore, as the front moves eastward, showers and severe thunderstorms
will develop along and ahead of the boundary over the parts of the
Southern Plains. Therefore, the SPC has issued a Slight Risk (level 2/5)
of severe thunderstorms over the Southern Plains from Monday through
Tuesday morning. The hazards associated with these thunderstorms are
frequent lightning, severe thunderstorm wind gusts, hail, and a few
tornadoes.
Also, on Monday, as tropical moisture streams over the Central Gulf Coast,
heavy rain will develop over the region. Therefore, the WPC has issued a
Slight Risk (level 2/4) of excessive rainfall over parts of the Central
Gulf Coast from Monday through Tuesday 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.
Likewise, as the axis of tropical moisture moves eastward, heavy rain will
develop over parts of the Central Gulf Coast and Southeast. Therefore, the
WPC has issued a Slight Risk (level 2/4) of excessive rainfall over parts
of the Central Gulf Coast and Southeast on Tuesday. 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.
Moreover, rain and thunderstorms will develop over parts of the Upper
Midwest and Ohio Valley overnight Monday into Tuesday.
Ziegenfelder
Graphics available at
https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php
Leave a Reply