217
ACUS11 KWNS 300628
SWOMCD
SPC MCD 300628
ILZ000-IAZ000-MOZ000-NEZ000-300830-
MESOSCALE DISCUSSION 1844
NWS STORM PREDICTION CENTER NORMAN OK
0128 AM CDT WED JUL 30 2025
AREAS AFFECTED...SOUTHERN/EASTERN IA AND ADJACENT PARTS OF MO/IL
CONCERNING...SEVERE THUNDERSTORM WATCH 559...560...561...
VALID 300628Z - 300830Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 559, 560,
561 CONTINUES.
SUMMARY...STRONG TO SPORADIC SEVERE GUSTS WILL REMAIN POSSIBLE
THROUGH SUNRISE ACROSS MUCH OF SOUTHERN TO EASTERN IOWA AND ADJACENT
PORTIONS OF MISSOURI AND ILLINOIS. THE MORE CONCENTRATED THREAT IS
ANTICIPATED OVER SOUTH-CENTRAL IOWA WHERE WW 561 WAS RECENTLY
COORDINATED.
DISCUSSION...TWO CLUSTERS OF STRONG TO LOCALLY SEVERE STORMS ARE
ONGOING, A LEAD ONE OVER EAST-CENTRAL IA AND A BROADER ARC ACROSS
WEST-CENTRAL TO SOUTHWEST IA. A MEASURED GUST OF 58 MPH WAS REPORTED
LAST HOUR AT KMIW AND SPORADIC GUSTS OF 50-70 MPH WILL BE POSSIBLE
WITH THE LEAD CLUSTER AS IT MOVES EAST AT AROUND 30 MPH IN EASTERN
IA. GREATER ORGANIZATIONAL CHARACTER WITH A MORE PRONOUNCED COLD
POOL ACCOMPANIES THE NORTH-NORTHEAST TO SOUTHWEST ORIENTED QLCS IN
WESTERN IA. WHILE THE NORTHERN EXTENT WILL PROGRESS ATOP THE LEAD
CLUSTER'S OUTFLOW, AMPLE BUOYANCY TO ITS SOUTH WITH MID TO UPPER 70S
SURFACE DEW POINTS SHOULD FOSTER MAINLY STRONG WITH SPORADIC SEVERE
GUSTS AS IT MOVES EAST-SOUTHEAST AT AROUND 30 MPH THROUGH DAYBREAK.
..GRAMS.. 07/30/2025
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT
ATTN...WFO...DVN...DMX...EAX...OAX...
LAT...LON 42329467 42139385 41779315 41859276 42219246 42569189
42579087 42339020 41589016 40629086 40499147 40349219
40309377 40319470 40339543 40459572 40679567 41259503
41599472 42329467
MOST PROBABLE PEAK WIND GUST...55-70 MPH
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