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