MD 0179 CONCERNING TORNADO WATCH 41… FOR SOUTHEAST MO INTO CENTRAL/SOUTHERN IL INTO FAR WESTERN IN
Mesoscale Discussion 0179
NWS Storm Prediction Center Norman OK
0227 PM CST Wed Feb 22 2023
Areas affected...southeast MO into central/southern IL into far
western IN
Concerning...Tornado Watch 41...
Valid 222027Z - 222230Z
The severe weather threat for Tornado Watch 41 continues.
SUMMARY...Damaging gusts and perhaps a brief tornado remain possible
across tornado watch 41.
DISCUSSION...A broken line of convection has shown some better
organization and modest intensification over the past 30-45 minutes,
particularly as the line moves into east-central IL. Somewhat better
heating and dewpoints in the upper 50s to near 60 F is likely
responsible for convection become more surface-based compared to
earlier in storm-scale evolution. A couple of measured severe gusts
were noted just north of St. Louis, and damaging wind potential will
continue across the remain of tornado watch 41.
Some veering of low-level winds is noted in surface observations
across southern IL. However, some southeasterly low-level winds are
still noted closer to central IL nearer to the warm front and a weak
surface low/triple point. Given the magnitude of low-level shear, a
locally greater chance of a brief tornado may exist between the I-70
and I-64 corridors.
Severe potential should wane with eastward extent into portions of
western KY and IN and a downstream watch is not currently
anticipated.
..Leitman.. 02/22/2023
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...IND...PAH...ILX...LSX...
LAT...LON 39869002 40478726 39078715 37648821 37008938 37118989
37319035 38189037 39649018 39869002
