Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
400 PM EDT Mon Oct 27 2025

Valid 00Z Tue Oct 28 2025 - 00Z Thu Oct 30 2025

...Unsettled weather and cool temperatures continue across the Southeast
and southern Appalachians through tomorrow with some isolated flash
flooding possible...

...A new storm system will organize across the Middle and Lower
Mississippi Valley by midweek with widespread showers and thunderstorms
expected...

...Below average temperatures to overspread the Central and Eastern Half
of the Lower 48 beginning tomorrow...

Widespread showers and thunderstorms are expected to continue across the
Southeast and southern Appalachians tonight as a developing coastal low
maintains the influx of moisture from the Atlantic. The latest Excessive
Rainfall forecast highlights the potential for isolated flash flooding
along the Eastern Florida Coast, as additional heavy rainfall today could
overlap with areas which were hit hard from stationary storms yesterday.
Per the Storm Prediction Center, a few instances of severe wind gusts are
possible over the same area. For the rest of the Southeast and lower
Mid-Atlantic, however, this rainfall should provide some respite from the
prevailing drought conditions over the region.

Over the Heartland, showers and thunderstorms ahead of an amplifying
upper-trough and accompanying cold front will shift from the Northern
Plains into the Missouri Valley and Central Plains tonight. Then, on
Tuesday, the trough will begin to dig deeply southward helping to organize
another low pressure system over the Middle to Lower Mississippi Valley.
Widespread showers and thunderstorms with some locally heavy rainfall are
expected, potentially leading to isolated flash flooding across the
Mid-South. In the Pacific Northwest, another round of coastal rain and
elevation snows will return tomorrow with the approach of a strong Pacific
system lifting into British Columbia. However, amounts will remain much
more moderate compared to the previous system, and should taper off rather
quickly into Wednesday.

By midweek, expect below average temperatures to overspread the Central
and Eastern half of the Lower 48 as the Mississippi Valley low pressure
organizes along a strong cold front. This frontal passage could bring the
first freeze of the season to parts of the Central and Southern Plains
late Tuesday night, where a swath of Freeze Watches are in effect. This
front will be an abrupt change for the Southern Plains, where highs could
reach the mid-80s and 90s today and potentially set a few daily high
temperature records. Elsewhere, anomalously warm weather will linger over
Southern California through Wednesday with a Heat Advisory now in effect
for highs in the 80s and 90s.

Asherman/Putnam

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