Mesoscale Discussion 1280
NWS Storm Prediction Center Norman OK
1145 AM CDT Wed Jul 14 2021
Areas affected...eastern Iowa...southern Wisconsin
Concerning...Severe Thunderstorm Watch 377...
Valid 141645Z - 141845Z
The severe weather threat for Severe Thunderstorm Watch 377
SUMMARY...The threat for isolated strong gusts or marginal hail
continues mainly from northeast Iowa into southwest Wisconsin. It is
unclear if another watch will be needed in the short term.
DISCUSSION...A north-south oriented band of storms continues
eastward across the watch and is now crossing the MS River. This
activity is associated with the leading warm advection ahead of the
midlevel wave, with veered low-level winds across central IA feeding instability eastward.=20
Objective analysis shows less instability ahead of the system
compared to farther west, but continued theta-e advection and areas
of filtered sunshine may aid destabilization enough for some of this
activity to become severe. While an additional watch is not
anticipated in the near term downstream of this ongoing line, trends
will continue to be monitored for strengthening.
= = =
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 email@example.com and ask to be removed from WX-STORM. ------------=_1626281136-59769-9005--