ACUS11 KWNS 222246
SWOMCD
SPC MCD 222246=20
MOZ000-IAZ000-230045-
Mesoscale Discussion 1378
NWS Storm Prediction Center Norman OK
0546 PM CDT Sat Jun 22 2024
Areas affected...North-central Missouri into south-central and
southeast Iowa
Concerning...Severe potential...Watch possible=20
Valid 222246Z - 230045Z
Probability of Watch Issuance...40 percent
SUMMARY...A few strong/severe storms may occur late this afternoon
into the evening. Damaging winds and isolated marginally severe hail
are the main threats. A severe thunderstorm watch is possible should
convective trends warrant.
DISCUSSION...Convective showers have been increasing along the cold
front and within weak convergence bands ahead of the front in
southern Iowa and northern Missouri. With the primary shortwave
trough farther to the the north, forcing for ascent will be more
nebulous. That said, storm coverage is not certain late this
afternoon into the evening. Temperatures have risen into the upper
80s/low 90s F and the airmass is quite moist (low 70s F dewpoints).
MLCAPE of 2000-2500 J/kg and effective shear of around 35 kts will
be sufficient for organized strong to severe storms. Damaging winds
will be the main threat with isolated marginally severe hail
possible as well. A severe thunderstorm watch is possible late this
afternoon, but issuance will depend on convective coverage.
..Wendt/Gleason.. 06/22/2024
...Please see
https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!8uodsOknMjKl1sRg4_Xs0iQ7dMEJHO8PxgJ8307avDYiXDBz4r0cEUOXcbGPQ6-H-xCZ0OjFe= YslrllN3-Vwck1hqkc$ for graphic product...
ATTN...WFO...LSX...DVN...DMX...EAX...
LAT...LON 41769289 41509207 40839178 40119216 39759260 39619362
39969442 40549469 40639471 41549375 41769289=20
=3D =3D =3D
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