ACUS11 KWNS 162231
SWOMCD
SPC MCD 162231=20
ILZ000-WIZ000-IAZ000-170030-
Mesoscale Discussion 1923
NWS Storm Prediction Center Norman OK
0531 PM CDT Fri Aug 16 2024
Areas affected...southeastern Wisconsin and northern Illinois
Concerning...Severe potential...Watch unlikely=20
Valid 162231Z - 170030Z
Probability of Watch Issuance...5 percent
SUMMARY...Gusty winds locally -- with potential for a gust or two
near severe levels -- can be expected over the next couple of hours
across a portion of far southeastern Wisconsin and into northern
Illinois. WW issuance is not expected, due to anticipated
marginal/isolated nature of the risk.
DISCUSSION...Latest radar loop shows that a semi-organized band of
storms has developed over northwestern Illinois, ahead of a subtle, eastward-moving mid-level vort max embedded within the cyclonic flow surrounding the western Lake Superior upper low. A narrow axis of
1500 J/kg mixed-layer CAPE is indicated just ahead of the band of
storms, which suggests continuation -- and possible/slight
strengthening over the next 1 to 2 hours.=20=20
The latest VWP from the KLOT (Chicago, IL) WSR-88D shows flow weakly
veering from west-southwesterly to west-northwesterly with height,
and increasing to around 35 kt at mid levels. This should allow
storms to progress into the Chicago -- and possibly Milwaukee --
vicinity, accompanied by gusty winds. While a couple of gusts could
near or reach severe levels, risk should remain sparse and marginal,
and thus insufficient to warrant WW consideration.
..Goss/Edwards.. 08/16/2024
...Please see
https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!9rLlRIMBnAqxpmm2qOYDKLfF6AVB-PaYBEGRQLcb3s6KIFY18T1VsWyKR5sPJXp-BpzSDbywl= cLuN5H1xOU6MZekc24$ for graphic product...
ATTN...WFO...LOT...MKX...DVN...
LAT...LON 41899033 42458943 43088879 42888810 41938760 41438790
41418935 41899033=20
=3D =3D =3D
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