000
ACUS48 KWNS 140856
SWOD48
SPC AC 140854

Day 4-8 Convective Outlook
NWS Storm Prediction Center Norman OK
0354 AM CDT Mon Sep 14 2026

Valid 171200Z - 221200Z

...DISCUSSION...
Latest medium-range model output continues to indicate that
initially prominent Southeastern mid-level ridging will gradually
become suppressed late this week into next weekend.  However, short
wave developments within the westerlies become more unclear by next
weekend into early next week.  In general, it appears that a modest
to weak split flow will evolve across much of North America, as
larger positive mid-level height anomalies tend to develop across
interior Canada.

It is possible that diurnal destabilization will remain sufficient
to support areas of stronger daily thunderstorm development across
the U.S., supported by forcing for ascent associated with these
evolving perturbations.  However, any associated severe weather
seems unlikely to become particularly well organized and probably
will remain rather isolated and/or marginal in nature.

..Kerr.. 09/14/2026