Mesoscale Discussion 1015
NWS Storm Prediction Center Norman OK
0333 PM CDT Sat Jun 19 2021
Areas affected...far southeast AL...southwest into south-central GA
Concerning...Tornado Watch 285...
Valid 192033Z - 192200Z
The severe weather threat for Tornado Watch 285 continues.
SUMMARY...The most favorable corridor for a tornado will focus along
the maritime warm front/differential heating zone draped from west
to east across southern GA. An additional tornado watch may be
considered towards the expiration time of tornado watch 285 (8pm
EDT) or if storms begin to exhibit tornadic supercell potential to
the east of tornado watch 285.
DISCUSSION...Scattered thunderstorms in a mix of discrete cells and
bands of deep convection continue to slowly shift to the northeast
across southeast AL/southwest GA. A maritime warm
front/differential heating zone is stationary and draped from west
to east across southeast AL eastward into south-central GA. As
stronger updrafts interact with this vorticity rich zone, a greater
probability for low-level mesocyclone development and a tornado risk
has been apparent so far this afternoon. Expecting the relationship
of an increased threat for storm-scale rotation and the differential
heating zone to continue through the remainder of the afternoon and
perhaps into the early evening. As the boundary layer slowly cools,
storm coverage will likely decrease this evening with the overall
conditional tornado risk to spatially contract and possibly become
quite limited by mid evening.
= = =
To unsubscribe from WX-STORM and you already have a login, go to https://lists.illinois.edu and use the "Unsubscribe" link. Otherwise email Chris Novy at firstname.lastname@example.org and ask to be removed from WX-STORM. ------------=_1624134878-2022-1709--