Subj : MESO: Mesoscale Discussion 0769
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Fri May 12 2023 01:41:53

ACUS11 KWNS 120141
SWOMCD
SPC MCD 120141=20
OKZ000-120315-

Mesoscale Discussion 0769
NWS Storm Prediction Center Norman OK
0841 PM CDT Thu May 11 2023

Areas affected...a small portion of central OK

Concerning...Tornado Watch 213...

Valid 120141Z - 120315Z

The severe weather threat for Tornado Watch 213 continues.

SUMMARY...A slight increase in 0-1km SRH has been observed during
the past hour.  The tornado risk continues.

DISCUSSION...A cluster of supercells continues to straddle the I-35
and I-44 corridors south of OKC.  The 00 UTC Norman, OK raob showed
a very unstable airmass (2900 J/kg MLCAPE) with around 40 kt
effective shear---supporting supercells capable of tornadoes.  Very
moist low level conditions (surface dewpoints around 70 deg F) with
some slight increase in low-level SRH (200 m2/s2 0-1km SRH per
observed storm motions) will continue to support supercell
tornadogenesis for the next hour or two.

...Smith.. 05/12/2023

....Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj=
g!7ZC_hI8zY-yZXt4DsOOZ7Zj1uA_haJfHSarNvwfZIkUQN5ctD405-a8IpMi7cbxviGyxbMKWF=
RBwdDJLmyPU6aELDmE$  for graphic product...

ATTN...WFO...OUN...

LAT...LON   34879798 35349746 35379731 35259723 35039730 34879770
            34829783 34879798=20


=3D =3D =3D
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