105
FXUS01 KWBC 010716
PMDSPD

Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
315 AM EDT Mon Sep 01 2025

Valid 12Z Mon Sep 01 2025 - 12Z Wed Sep 03 2025

...Unsettled weather continues across parts of the central Plains
and along the Gulf Coast from Florida through southern Texas, with
locally heavy rain and isolated flash flooding possible...

...Cooler than normal temperatures remain across much of the
eastern and central U.S., while a strong cold front brings a
notably colder airmass into the northern Plains and Midwest
midweek...

...Heat expands and intensifies across the Pacific Northwest, with
record-challenging high temperatures likely...

Moisture lingering in the vicinity of a slow-moving frontal
boundary will again be the focus for scattered showers and
thunderstorms across portions of the Gulf Coast from Florida
westward into southern Texas today. While this activity likely
won`t be quite as widespread as the last couple of days, any storm
clusters will be capable of producing locally heavy rainfall which
could then lead to isolated instances of flash flooding. The
boundary slips farther south on Tuesday, allowing relatively drier
air to filter into the region. This should help to keep showers
and storms more isolated and confined to far southern Texas and
along the immediate Gulf Coast into Florida.

Farther north, a slow-moving disturbance will trigger showers and
storms across portions of Nebraska, Iowa, Kansas, Missouri, and
Oklahoma today. While this region has been fairly dry as of late,
storms are likely to contain downpours which raises the concern
for localized flash flooding in low-lying and poor drainage areas.
By Tuesday into Wednesday, the system will begin to accelerate to
the south and east, spreading showers and thunderstorms and the
potential for isolated to scattered instances of flash flooding
across parts of the lower Mississippi and Tennessee Valleys. Given
an abundance of clouds and rain, temperatures across the region
will continue to run 10 to 15 degrees below normal the next couple
of days.

Across the eastern U.S., temperatures are forecast to remain near
to below seasonal norms into midweek. In contrast, above-normal
warmth will persist for much of the western U.S. thanks to a
building upper-level ridge. The core of the hottest temperatures
will shift and expand into the Pacific Northwest Tuesday into
Wednesday, starting what is likely to be a multi-day heat wave. As
a result, with high temperatures pushing well into the 90s and low
100s across parts of eastern Washington and northern Idaho,
several records are at risk of being tied or broken through
midweek.

While the Northwest remains hot and dry, monsoonal moisture will
return across portions of the Southwest and Four Corners over the
next few days, bringing an increasing chance for showers and
thunderstorms.

Finally, a seasonally strong cold front dropping south out of
Canada will sweep into the northern Plains and upper Midwest
Tuesday into Wednesday. This cold front will be the focus for
showers and thunderstorms, some of which could become strong. More
notably, a much colder air mass follows in the wake of the front,
sending temperatures plummeting 15 to 25 degrees below normal mid
to late week.

Miller

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