Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
400 PM EDT Sun Oct 26 2025

Valid 00Z Mon Oct 27 2025 - 00Z Wed Oct 29 2025

...Pacific storm system continues to bring lower elevation rain and
hazardous mountain snow to portions of the Northwest U.S. through Monday...

...Unsettled weather and cool temperatures will impact much of the eastern
Gulf Coast region and Southeast U.S. going through Monday, which will
include concerns this evening and overnight for some additional severe
weather and flash flooding concerns...

...A new storm system will organize across the Middle and Lower
Mississippi Valley by midweek...

A storm system impacting portions of the Pacific Northwest and northern
California will move through the Great Basin and interior of the Northwest
through Monday which will bring additional focus for lower elevation
rainfall, and locally heavy accumulating snow for the higher elevations.
In fact, portions of the northern Rockies may see as much as 12 to 18
inches of new snowfall by late Monday as a combination of Pacific moisture
and multiple waves of low pressure traversing a frontal boundary crosses
through the Intermountain Region. This system will also be spilling out
across the northern and central Plains on Monday, and showers and
thunderstorms are expected to break out along a cold front with a focus on
the Dakotas. By Tuesday, this cold front will be sweeping well to the east
into the Midwest and through the southern Plains, as fairly strong high
pressure builds behind it across the Intermountain West. This will allow
conditions to gradually dry out, but colder temperatures will follow with
high temperatures as much as 10 to 15 degrees below normal across much of
the Northwest U.S. over the next couple of days.

Meanwhile, a slow-moving storm system stretching from the Lower Ohio
Valley and Mid-South down the central Gulf Coast will continue to
gradually eject off to the east over the next couple of days, but with low
pressure becoming more focused near the eastern Gulf Coast and then
consolidating offshore of the Southeast U.S. on Tuesday. In the short-term
going through this evening and overnight, areas of heavy showers and
thunderstorms will continue to impact areas of especially southern Alabama
and into the Florida Panhandle where some localized areas of severe
thunderstorms and potential for flash flooding will continue. The Storm
Prediction Center has depicted a Slight Risk (level 2/5) to address
concerns for some damaging wind potential and a couple of tornadoes. With
locally a few inches of rain possible, the Weather Prediction Center has
depicted a Slight Risk of excessive rainfall (level 2/4). Farther east
across portions of east-central Florida including the Space Coast, locally
very heavy and slow-moving showers and thunderstorms will be a concern
this evening and overnight with locally several inches of rain possible
near a frontal zone as very moist easterly Atlantic flow impacts the
region. A Slight Risk (level 2/4) of excessive rainfall has been depicted
here given the concerns for flooding impacts. Locally heavy rains with
this broader storm system will also impact areas of the southern
Appalachians and interior of the Southeast on Monday. Low pressure will
begin to pull away from the Southeast U.S. on Tuesday, but lingering
clouds and light rain will help keep temperatures rather cool for this
time of the year, with high temperatures expected to be well below normal
across much of the Southeast for the early part of the week.

By midweek, the aforementioned unsettled weather and associated cold front
ejecting out of the West and crossing the Plains and Midwest will begin
through the Middle and Lower Mississippi Valley region. A more widespread
area of heavy showers and thunderstorms will begin to overspread areas of
the Midwest on down to the northwest Gulf Coast region on Tuesday. This
will then reload widespread unsettled weather and cool temperatures across
much of the Ohio and Tennessee Valley region and into the Southeast U.S.
on Wednesday as this new storm system advances off to the east.

Orrison

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