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SPC MD 831

SPC MD 831

[html]MD 0831 CONCERNING TORNADO WATCH 243... FOR SOUTHERN MISSOURI INTO SOUTHERN ILLINOIS
       
MD 0831 Image


Mesoscale Discussion 0831
NWS Storm Prediction Center Norman OK
0235 PM CDT Thu May 19 2022

Areas affected...southern Missouri into southern Illinois

Concerning...Tornado Watch 243...

Valid 191935Z - 192130Z

The severe weather threat for Tornado Watch 243 continues.

SUMMARY...The threat for severe winds and perhaps a brief tornado is
increasing across south-central into southeastern Missouri.

DISCUSSION...c*nvection associated with an MCV has consolidated into
an organized bow echo over the past hour, and is likely producing
severe winds.  Downstream of this feature, the air mass continues to
beco*e more unstable with temperatures above 80 F and MUCAPE over
3000 J/kg. Pressure falls are also increasing across southeast MO as
the air mass warms.

Given the substantial amount of instability, pristine air mass ahead
of this feature, and favorable time of day, further strengthening is
expected, with swaths of significant wind damage possible. An
additional watch may eventually be needed farther east should storm
severity persist.

..Jewell.. 05/19/2022

...Please see www.spc.noaa.gov for graphic product...

ATTN...WFO...PAH...LSX...SGF...

LAT...LON   37809221 37879188 38079129 38399031 38498974 38278904
            37928866 37558866 37028914 37018950 36939037 36989110
            37119215 37139279 37369251 37539245 37639240 37809221


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Source: SPC MD 831 (http://ht**://www.spc.noaa.gov/products/md/md0831.html)