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ACUS11 KWNS 102246
SWOMCD
SPC MCD 102245=20
KYZ000-TNZ000-ILZ000-MSZ000-MOZ000-ARZ000-110015-

Mesoscale Discussion 1982
NWS Storm Prediction Center Norman OK
0445 PM CST Fri Dec 10 2021

Areas affected...Eastern Arkansas...southeast Missouri...southern Illinois...southeast Indiana...and western Kentucky.

Concerning...Tornado Watch 552...

Valid 102245Z - 110015Z

The severe weather threat for Tornado Watch 552 continues.

SUMMARY...A slow increase in storm intensity/coverage is expected
over the next 1 to 2 hours.

DISCUSSION...Initial storms which developed near Little Rock have
not shown much organization thus far. In addition, weak cellular
convection is developing across much of the Mississippi River
region. However, a strong capping inversion, sampled by the 19Z LZK
RAOB is likely limiting more robust storm development thus far. As
heights continue to fall this evening, expect these warmer mid-level temperatures to erode further and expect greater storm coverage and
intensity. Once mature supercells can develop, all severe hazards
remain possible as the environment remains favorable with 0 to 1 km
shear now in excess of 35 knots per KLZK VWP.

..Bentley.. 12/10/2021

...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!t5MweeiDqhE1B8SOfMZsUKeu_vCbskREzN-ge1raXjEM1GWJ5FB2SDKIVpqvLw3JYVlBdmaL$=
for graphic product...

ATTN...WFO...PAH...MEG...LSX...LZK...SGF...

LAT...LON 37669019 37938924 37578816 35588870 34219005 34039184
34249245 34759248 37669019=20



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