Subj : DAY3SVR: Nws Storm Prediction Center Norman Ok
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Thu Jun 29 2023 07:43:33

ACUS03 KWNS 290743
SWODY3
SPC AC 290742

Day 3 Convective Outlook
NWS Storm Prediction Center Norman OK
0242 AM CDT Thu Jun 29 2023

Valid 011200Z - 021200Z

....THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FROM THE
MID-MISSISSIPPI VALLEY EAST TO THE MID-ATLANTIC...

....SUMMARY...
Severe thunderstorms will be possible Saturday from the mid-Atlantic
west through the Ohio/Tennessee Valley region and into the
mid-Mississippi Valley.

....Central and southern Plains east to the OH/TN Valley region and
mid-Atlantic...

A mid-level trough will move east across the central plains Saturday
as a belt of stronger mid-level flow extends across the Ozarks east
to the southern Appalachians.  A surface front will extend from
vicinity of Lake Erie southwest to a surface low over Missouri and
then into the southern Plains by Saturday afternoon. Moderate to
strong surface-based instability will be in place Saturday
afternoon, along with sufficient deep-layer shear (30-40kts) to
support organized storm structures including supercells and
clusters.

Morning thunderstorms, including the potential for clusters capable
of strong/damaging winds, may be ongoing at 12z Saturday and will
influence subsequent development later in the day. Scattered
thunderstorms are expected to develop or re-intensify during the
afternoon near the front and potentially with any ongoing MCSs.
Initially, a mix of supercell and multicell storms is expected with
eventual transition into clusters with more concentrated wind damage
potential.

...Bunting.. 06/29/2023

$$

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