…There is a Slight Risk of excessive rainfall over parts of New England
on Monday…
…There is a Slight Risk of severe thunderstorms over parts of the
Central High Plains on Monday…
…There are Excessive Heat Warnings over parts of the Southern Plains and
Heat Advisories over parts of the Southern Plains and Lower Mississippi
Valley…
A front extending from the Northeast Coast across the
Mid-Atlantic/Southeast Coast and then across the Gulf Coast State will
move off most of the Eastern Seaboard while lingering over the Southeast
by Wednesday. The boundary will produce showers and thunderstorms with
heavy rain over parts of New England as a plume of moisture feds into the
area. Therefore, the WPC has issued a Slight Risk (level 2/4) of excessive
rainfall over parts of New England 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.
Moreover, showers and thunderstorms will develop along the front from the
Mid-Atlantic to the Southeast and the Gulf Coast State. Showers and
thunderstorms will also develop over parts of the Central Appalachians and
Ohio Valley on Monday.
In addition, on Monday, upper-level energy over the Central Rockies will
interact with ample amounts of moisture to produce showers and severe
thunderstorms over parts of eastern Colorado. Therefore, the SPC has
issued a Slight Risk (level 2/5) of severe thunderstorms over parts of the
Central High Plains through Tuesday morning. The hazards associated with
these thunderstorms are frequent lightning, severe thunderstorm wind
gusts, hail, and a minimal threat of tornadoes.
Furthermore, monsoonal moisture and daytime heating will create showers
and thunderstorms over parts of the Southwest, Eastern Great Basin, and
Northern/Central Rockies from late afternoon into late evening on Monday.
On Tuesday, the showers and thunderstorms will be over a much smaller area
over the Southwest and adjacent regions. Additionally, disorganized
upper-level energy will aid in triggering showers and thunderstorms over
parts of the Northern/Central Plains. Further, on Tuesday, an upper-level
low will move over parts of the Northeast, creating rain over parts of the
area. Additionally, showers and thunderstorms will also develop over parts
of Florida.
As the quasi-stationary front moves southward over the Southern Plains and
Lower Mississippi Valley, the areas under Excessive Heat Warnings and Heat
Advisories have reduced to parts of the Southern Plains and Lower
Mississippi Valley. Moreover, people spending more time or effort outdoors
or in a building without cooling in the areas of heat warnings are still
at an increased risk of heat-related illness.
Ziegenfelder
Graphics available at
https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php
