Clearpost.online It's your post, so post it!

Day 2 Convective Outlook  
NWS Storm Prediction Center Norman OK
1231 PM CDT Sat Aug 20 2022

Valid 211200Z - 221200Z

...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS PARTS OF THE
UPPER AND MIDDLE OHIO VALLEY...

...SUMMARY...
Isolated strong to severe thunderstorms appear possible Sunday
across parts of the mid and upper Ohio Valley.

...Synopsis...
A closed upper low will continue to move eastward and beco*e more of
an open wave Saturday into Sunday. This trough is expected to
undergo some weakening through the day on Sunday. A weak surface low
may develop in central/eastern Ohio by late afternoon/evening. A
cold front will continue to push eastward through the Ohio and parts
of the Tennessee Valleys.

...Ohio Valley...
Cloud cover is expected to be prevalent across the region. Despite
these clouds, cold temperatures aloft and perhaps some areas of
muted surface heating will support in the neighborhood of 1000-1500
J/kg MLCAPE. Locally higher buoyancy is possible into
Kentucky/Tennessee where cloud cover will probably be less
widespread. By afternoon widely scattered to scattered storms are
expected to develop along and ahead of the cold front. Effective
shear of 20-25 kts farther north to near 30 kts south (nearly
perpendicular to the front) will support marginally organized
multicell and isolated supercell storms. Strong/damaging wind gusts
will be the primary hazard. Given the weak surface low, surface
winds may be backed in parts of eastern/southern Ohio. There, a
conditional threat for a brief tornado will exist.

...Arizona...
Numerous storms are again expected on Sunday. Some guidance does
suggest that a cluster of storms will develop along the Mogollon Rim
and move off the terrain to the south/southwest. However, given the
high PWAT values and potential for cloud cover, low-level lapse
rates may not beco*e overly steep. If greater heating can occur by
tomorrow afternoon, low-end wind probabilities may beco*e warranted.

..Wendt.. 08/20/2022