Subj : MESO: Mesoscale Discussion 0535
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Sat Apr 27 2024 00:27:28

ACUS11 KWNS 270027
SWOMCD
SPC MCD 270027=20
IAZ000-MOZ000-270200-

Mesoscale Discussion 0535
NWS Storm Prediction Center Norman OK
0727 PM CDT Fri Apr 26 2024

Areas affected...Central/Southern IA/northern MO

Concerning...Tornado Watch 142...

Valid 270027Z - 270200Z

The severe weather threat for Tornado Watch 142 continues.

SUMMARY...Supercells will propagate into central/south-central IA
this evening. Tornado risk continues for the next few hours. A watch
extension may be warranted.

DISCUSSION...Multiple long-lived supercells, some producing
tornadoes, have spread into the northeastern part of ww142.
Immediately downstream of this activity, boundary layer has
recovered a bit into central IA, per 58F Td now observed at KDSM.
Given the progressive short-wave trough aiding this convection,
there will be a propensity for organized updrafts continuing further
downstream. While buoyancy is considerably weaker into central IA,
there is some concern that supercells over southwest IA will spread
east of the current watch before appreciably weakening. Tornado
watch may need to be extended east for a few counties to account for
this risk extending beyond watch expiration.

...Darrow.. 04/27/2024

....Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj=
g!6iodA4OuYMfmPNsxgW_BAUTmwGafUHDvBMRBCnhwKXM8yT0XZC5tLTQnJ2iba8d2qZJTzuEAs=
liQgCb11QwfPhYokYY$  for graphic product...

ATTN...WFO...DMX...EAX...OAX...

LAT...LON   42279529 42629460 40869231 40289414 40559492 41439484
            42279529=20


=3D =3D =3D
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