BBS:      TELESC.NET.BR
Assunto:  MESO: Mesoscale Discussion 0583
De:       COD Weather Processor
Data:     Tue, 28 Apr 2026 01:08:50 +0000
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ACUS11 KWNS 280108
SWOMCD
SPC MCD 280108=20
INZ000-ILZ000-MOZ000-280245-

Mesoscale Discussion 0583
NWS Storm Prediction Center Norman OK
0808 PM CDT Mon Apr 27 2026

Areas affected...west-central IN...central/southern
IL...east-central MO

Concerning...Tornado and Severe Thunderstorm Watches
160...162...163...165...

Valid 280108Z - 280245Z

The severe weather threat for Tornado and Severe Thunderstorm
Watches 160, 162, 163, 165 continues.

SUMMARY...Damaging wind threat increasing as a organized QLCS
advances eastward through the evening. Some QLCS tornado risk may
continue across parts of central/southern IL into east-central MO.

DISCUSSION...A well-developed QLCS extending from west-central IN
through central IL into east-central MO will continue eastward
through the evening. As this line has become better organized as it
moves into an axis of moderate to strong instability overlapping a
40+ kt low level jet, swaths of damaging winds will be possible.
Additionally, low-level shear remains favorable (0-1 km SRH greater
than 300 m2/s2) for tornadoes and a few QLCS mesovortex tornadoes
will also be possible. New watch issuance or local extension of
existing tornado watches will likely be needed soon.

..Leitman.. 04/28/2026

...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj=
g!8irq5phrgNH-_eghthsHdlyKmYqZoJcfUEV5h-nrLy0ZoLmUrLhdFObwscXnAZ_keZVy_v1lI=
SUsMDqRqQ-hL_5KLXM$  for graphic product...

ATTN...WFO...IND...PAH...ILX...LSX...SGF...

LAT...LON   39898874 40458762 40438704 40288675 39978665 39638668
            38938720 38338789 37728897 37389007 37499079 37709128
            38109089 39898874=20

MOST PROBABLE PEAK TORNADO INTENSITY...120-145 MPH
MOST PROBABLE PEAK WIND GUST...55-70 MPH
MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN


=3D =3D =3D
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