Prognostic Meteorological Discussion
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473
FXUS01 KWBC 291942
PMDSPD

Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
341 PM EDT Sun Jun 29 2025

Valid 00Z Mon Jun 30 2025 - 00Z Wed Jul 02 2025

...There is a Slight Risk of excessive rainfall over parts of the
Central Plains/Middle Mississippi Valley on Sunday...

...There is a Slight Risk of severe thunderstorms over parts of
the Upper Great Lakes and Upper/Middle Mississippi Valley and
Central Plains/Central High Plains on Sunday...

Showers and thunderstorms are expected along and ahead of a cold
front tracking eastward through the Central Plains to the Upper
Mississippi Valley/Great Lakes region. Embedded areas of heavy
rainfall will have the potential for localized flash flooding; WPC
has a broad Marginal Risk in effect in for this system through
Wednesday morning, however there is a Slight Risk in place through
Monday morning for eastern Nebraska/Kansas, southwest Iowa and
much of Missouri. SPC has issued a Slight Risk (level 2/5) of
severe over parts of the Upper Great Lakes and Upper/Middle
Mississippi Valley and Central Plains/Central High Plains through
Monday morning. The hazards associated with these thunderstorms
are frequent lightning, severe thunderstorm wind gusts, hail, and
a minimal threat of tornadoes. Meanwhile, a quasi-stationary front
over the Mid-Atlantic will aid in producing showers and strong to
severe thunderstorms today. South of the front, upper-level
impulses, daytime heating, and moisture will create showers and
thunderstorms on Sunday over the Ohio/Tennessee Valleys, Southern
Plains, Lower Mississippi Valley, and the Southeast. Similarly,
upper-level impulses, daytime heating, and moisture will create
showers and thunderstorms over parts of the Southern High Plains.
Also, on Sunday, scattered rain showers will develop over parts of
Northern New England as low pressure moves eastward into
Southeastern Canada.

Elsewhere, upper-level impulses, daytime heating, and moisture
will produce showers and thunderstorms over parts of the southern
Mid-Atlantic/Southeast, the Gulf Coast States into the
Middle/Lower Mississippi Valley and the Central/Southern Plains.
Parts of the West will be heating up over the next few days as
upper-level ridging builds over the region. Heat advisories are in
effect for eastern Washington, northern Oregon, and portions of
Idaho and northern Nevada from Monday morning into Tuesday.

Campbell


Graphics available at
https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php


$$