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

Mesoscale Discussion 0468
NWS Storm Prediction Center Norman OK
1026 PM CDT Tue Apr 12 2022

Areas affected...Parts of northeastern Iowa...southeastern
Minnesota...southwestern Wisconsin

Concerning...Tornado Watch 117...

Valid 130326Z - 130430Z

The severe weather threat for Tornado Watch 117 continues.

SUMMARY...An evolving cluster of thunderstorms could still beco*e
increasingly organized with potential to produce strong wind gusts
by Midnight-2 AM CST.  Trends are being monitored for an additional
severe weather watch east-northeast of Tornado Watch 117.

DISCUSSION...Strong low-level warm advection, along a warm frontal
zone to the northeast of the migratory surface cyclone, has
maintained a cluster of vigorous thunderstorm development.  This
likely has been aided by forcing acco*panying a lead northeastward
propagating mid-level jet streak, with an associated mid-level
vorticity center now better defined to the west/southwest of the
Minneapolis area.  Although ongoing activity may now be mostly
rooted above cooler and more stable boundary-layer air, inflow of
air emanating from the unstable warm sector may be maintained at
least several more hours.  As a result, in the presence of strong
vertical shear, there still appears potential for further
consolidation, organization and upscale growth of thunderstorm
activity as it spreads northeastward into southwestern Wisconsin
through 05-07Z.  If this occurs, it could gradually be acco*panied
by increasing risk to produce strong wind gusts.

..Kerr.. 04/13/2022

...Please see www.spc.noaa.gov for graphic product...

ATTN...WFO...MKX...ARX...

LAT...LON   44519174 44469037 43229009 43099169 43549233 43899240
            44519174