FXUS01 KWBC 272001

PMDSPD



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



$$