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Mesoscale Discussion 673 |
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Mesoscale Discussion 0673
NWS Storm Prediction Center Norman OK
0229 AM CDT Tue May 07 2024
Areas affected...Missouri...Far Western Illinois
Concerning...Tornado Watch 192...194...
Valid 070729Z - 070930Z
The severe weather threat for Tornado Watch 192, 194 continues.
SUMMARY...A potential for wind damage, a few tornadoes, and hail
will continue along a line of strong to severe storms moving through
Missouri. The severe threat will eventually affect parts of western
Illinois later tonight.
DISCUSSION...The latest hi-resolution radar imagery shows a
well-developed severe linear MCS, with several embedded rotating
cells and bowing line segments. This line is moving eastward into
moderate instability, with the RAP analyzing MLCAPE around 1500 J/kg
across much of eastern Missouri. In addition, WSR-88D VWPs ahead of
the line near St Louis have 0-6 km shear near 35 knots, with 0-3 km
storm-relative helicity near 550 m2/s2. This environment will
continue to support a wind damage and isolated tornado threat with
the rotating elements within the line. These stronger cells could
also be associated with hail.
..Broyles.. 05/07/2024
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...PAH...ILX...LSX...DVN...SGF...EAX...
LAT...LON 38679245 37789259 37219293 36789296 36579256 36559182
36829110 37509071 38509047 39439045 40089068 40269164
40169223 39759248 39129251 38679245
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