…There is a Slight Risk of severe thunderstorms over parts of the
Northern/Central High Plains and Southeast on Monday…
…There is a Slight Risk of excessive rainfall over parts of the southern
tip of Florida on Tuesday…
…There are Excessive Heat Warnings/Watches and Heat Advisories over
Northern/Central California and Southwest on Tuesday…
A front over the Northern Rockies to the Great Basin will move eastward to
the Upper Great Lakes/Upper Mississippi Valley by Wednesday afternoon. As
moisture streams northward into the Northern Rockies/Northern Plains, the
boundary will produce showers and severe thunderstorms over parts of
western South Dakota, northwestern Nebraska, eastern Wyoming, and extreme
eastern Montana. Therefore, the SPC has issued a Slight Risk (level 2/5)
of severe thunderstorms over parts of the Northern/Central High Plains
through Tuesday morning. The hazards associated with these thunderstorms
are frequent lightning, severe thunderstorm wind gusts, hail, and a few
tornadoes.
Further, a front extending from the Southeast to the Southern Plains will
trigger showers and severe thunderstorms over parts of southeastern
Georgia and southern South Carolina. Therefore, the SPC has issued a
Slight Risk (level 2/5) of severe thunderstorms over parts of the
Southeast through Tuesday morning. The hazards associated with these
thunderstorms are frequent lightning, severe thunderstorm wind gusts,
hail, and a few tornadoes. Showers and thunderstorms will also develop
over parts of the Central/Southern Rockies and Southern Plains on Monday.
In addition, upper-level energy over the Great Lakes/Northeast will help
produce rain and showers/thunderstorms over parts of the Lower Great
Lakes, Northeast, Central Appalachians, and northern Mid-Atlantic through
Monday night.
On Tuesday, showers and thunderstorms will develop over parts of the
Upper/Middle Mississippi Valley/Upper Great Lakes, Central/Southern
Rockies, and Central/Southern Plains.
Furthermore, the combination of tropical moisture and upper-level impulses
will aid in producing showers and thunderstorms with heavy rain over parts
of southern Florida. This weather pattern has led the WPC to issue a
Slight Risk (level 2/4) of excessive rainfall from Tuesday through
Wednesday 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.
Elsewhere, a front over the Eastern Pacific will move onshore over the
Pacific Northwest and advance eastward to the Northern Plains to the Great
Basin by Wednesday. The system will produce rain over parts of the
Northwest and scattered showers and thunderstorms over parts of the
Northern High Plains on Wednesday. Furthermore, upper-level ridging will
build over California and the Southwest on Tuesday prompting Excessive
Heat Warnings/Watches and Heat Advisories over Northern/Central California
and Southwest. It’s crucial for residents and individuals involved in
outdoor activities to stay informed and take necessary precautions.
Ziegenfelder
Graphics available at
https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php