788
ACUS11 KWNS 061040
SWOMCD
SPC MCD 061039
OHZ000-INZ000-ILZ000-061245-
MESOSCALE DISCUSSION 0997
NWS STORM PREDICTION CENTER NORMAN OK
0539 AM CDT SAT JUN 06 2026
AREAS AFFECTED...EAST-CENTRAL ILLINOIS INTO WEST-CENTRAL OHIO
CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY
VALID 061039Z - 061245Z
PROBABILITY OF WATCH ISSUANCE...20 PERCENT
SUMMARY...ISOLATED LARGE HAIL AND DAMAGING WINDS ARE POSSIBLE WITH A
MARGINALLY ORGANIZED CLUSTER OF STORMS. SURFACE HEATING WILL BE
NEEDED FOR A GREATER SEVERE THREAT. A WATCH IS NOT ANTICIPATED IN
THE SHORT TERM.
DISCUSSION...A SMALL CLUSTER OF THUNDERSTORMS HAS RECENTLY
INTENSIFIED IN EAST-CENTRAL ILLINOIS. THIS ACTIVITY IS TIED TO THE
SHORTWAVE TROUGH CURRENTLY MOVING INTO THE LOWER GREAT LAKES REGION.
REGIONAL VAD DATA SHOWS AROUND 35-40 KT OF 0-6 KM SHEAR. WITH
SUFFICIENT ELEVATED BUOYANCY (1000-1500 J/KG MUCAPE), SOME STORM
ORGANIZATION CAN BE EXPECTED. DEWPOINTS DO DECREASE TO THE THE EAST
OF THE THIS CLUSTER, HOWEVER. THE ENVIRONMENT WILL SUPPORT ISOLATED
LARGE HAIL AND STRONG/DAMAGING WIND GUSTS. A COUPLE OF RECENT
MEASURED GUSTS WERE NEAR SEVERE (54-57 MPH) IN PONTIAC, IL. IT
LIKELY WILL BE AFTER DAYBREAK BEFORE THESE STORMS CAN INTENSIFY
FURTHER. THAT SAID, A WATCH IS NOT ANTICIPATED IN THE NEAR TERM.
OBSERVATIONAL TRENDS WILL NEED TO BE MONITORED AS SURFACE HEATING
INCREASES IN THE COMING HOURS.
..WENDT/HART.. 06/06/2026
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT
ATTN...WFO...CLE...ILN...IWX...IND...LOT...ILX...
LAT...LON 40048855 40408899 40888913 41258901 41478789 41328600
41048416 40918377 40208379 39528446 39588642 40048855
MOST PROBABLE PEAK WIND GUST...UP TO 60 MPH
MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN
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