776
ACUS48 KWNS 220848
SWOD48
SPC AC 220846

Day 4-8 Convective Outlook
NWS Storm Prediction Center Norman OK
0346 AM CDT Fri Aug 22 2025

Valid 251200Z - 301200Z

...DISCUSSION...
...Monday/Day 4 to Wednesday/Day 6...
On Monday, a cyclonic-flow mid-level pattern will be in place across
much of the eastern two-thirds of the nation. Southwesterly flow is
expected over the Northeast, where scattered thunderstorms will be
possible on Monday, mainly in New England. Scattered storms are also
expected to develop in parts of the southern and central Plains
within northwesterly flow. Any severe threat in these two areas will
likely remain localized, mainly due to weak instability.

On Tuesday and Wednesday, a large area of high pressure is forecast
to be in place from the central and northern Plains eastward to the
Atlantic Seaboard. Thunderstorms, non severe in nature, would be
possible each afternoon across parts of the Gulf Coast states and in
the southern and central High Plains, along the southern and western
periphery of the post-frontal airmass.

...Thursday/Day 7 and Friday/Day 8...
From Thursday into Friday, a mid-level low is forecast to form over
the lower Great Lakes, as a large area of surface high pressure
moves slowly eastward across the eastern U.S. Scattered
thunderstorms could form in parts of the southern Plains and High
Plains, but weak instability should limit any severe potential.

..Broyles.. 08/22/2025