Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
359 AM EDT Mon Sep 14 2026

Valid 12Z Mon Sep 14 2026 - 12Z Wed Sep 16 2026

...Strengthening frontal system will bring widespread showers and
thunderstorms from the Intermountain West and Rockies to the Plains over
the next couple of days...

...Dangerous heat continues across the south-central U.S. through
midweek...

As calm high pressure sets in over the East, much of our attention will
shift towards the Western and Central U.S. ahead of a strengthening
frontal system forecast to lift out of the Rockies today. Strengthening
southerly flow ahead of this deep system will draw a very moist airmass
northward into the Heartland today, which will set the stage for
widespread showers and thunderstorms beginning this morning ahead of a
trailing cold front. Numerous instances of flash flooding, and scattered
severe weather is a concern a later today over portions of the Central
Plains as multiple rounds of thunderstorms develop in this very moist and
unstable environment. While the cold front is forecast to slowly sink
southward, persistent persistent southerly inflow into the boundary will
keep unsettled weather lingering across the Plains, enhancing the flash
flood threat through midweek. Coverage of afternoon showers and
thunderstorms will also increase over the Southern Rockies and Four
Corners this week, supporting daily chances of scattered flash flooding.

Meanwhile, an upper-level ridge moving across the Mid/Lower Mississippi
Valley will maintain dangerously hot weather with highs well into the 90s
and low 100s this week, which could set several daily high temperature
records. Combined with little relief at night, several days of Major to
Extreme HeatRisk are likely, which would increase the likelihood of
heat-related illnesses.


Asherman/Miller


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

--- MBSE BBS v1.1.7.2 (Linux-x86_64)
 * Origin: Outpost BBS * Johnson City, TN (618:618/1)