Subj : MESO: Mesoscale Discussion 0419
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Sat Apr 01 2023 02:32:01

ACUS11 KWNS 010231
SWOMCD
SPC MCD 010231=20
INZ000-KYZ000-ILZ000-010430-

Mesoscale Discussion 0419
NWS Storm Prediction Center Norman OK
0931 PM CDT Fri Mar 31 2023

Areas affected...Eastern Illinois...Indiana...Western and Central
Kentucky

Concerning...Tornado Watch 98...

Valid 010231Z - 010430Z

The severe weather threat for Tornado Watch 98 continues.

SUMMARY...A severe threat will continue over the next few hours
across eastern Illinois and Indiana southward into western Kentucky.
Tornadoes, wind damage and large hail will be possible with the
stronger storms. Weather watch issuance could be necessary later
this evening to the east of WW 98 in parts of far eastern Indiana
and western Ohio.

DISCUSSION...The latest WSR-88D radar imagery from Indianapolis
shows scattered severe storms in eastern Illinois and western
Indiana, including some supercells and short bowing line segments. A
second cluster of strong to severe storms is located near the Ohio
River in far southwest Indiana. To the west of these storm clusters,
an axis of moderate instability is located from far southeast
Missouri north-northeastward into eastern Illinois. At mid-levels, a
90 to 110 knot jet is located across southern Missouri. The exit
region of the jet is moving across the lower Ohio Valley, which is
associated with a broad zone of large-scale ascent and very strong
deep-layer shear. In response, intense convective development will
continue over the next few hours. Ahead of the mid-level jet, a 65
to 75 knot low-level jet is located from western Kentucky into
central Indiana. This feature will create the strong low-level shear
favorable for tornadoes, especially with the more dominant
supercells. Large hail will also be likely with supercells. The
greatest wind-damage potential should be concentrated along the more
intense parts of line segments.

...Broyles.. 04/01/2023

....Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj=
g!6JNNfkCpcq8EUfJuaU7HXlxS2ma6ves1uyXGjvE2LRKFSJFZ5Zp4jWXufgX8TGwP8MmaSFis4=
XghwkCuYNxcBozI7LU$  for graphic product...

ATTN...WFO...ILN...LMK...IWX...IND...PAH...LOT...ILX...

LAT...LON   41238719 40458796 39448842 38498862 37848827 37498740
            37458666 37548625 37768589 38318554 39358535 40478520
            41108543 41408622 41238719=20


=3D =3D =3D
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