Severe Storm Outlook Narrative (AC)
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ACUS11 KWNS 290819
SWOMCD
SPC MCD 290818
ILZ000-IAZ000-MOZ000-290945-
Mesoscale Discussion 1832
NWS Storm Prediction Center Norman OK
0318 AM CDT Tue Jul 29 2025
Areas affected...southeast IA and northwest IL
Concerning...Severe Thunderstorm Watch 555...
Valid 290818Z - 290945Z
The severe weather threat for Severe Thunderstorm Watch 555
continues.
SUMMARY...Sporadic severe gusts should finally diminish before dawn,
but may linger beyond the 09Z expiration of WW 555. A local
extension in time/area is possible, with an additional WW issuance
remaining unlikely.
DISCUSSION...After a flurry of measured severe gusts and wind damage
with a bow across northeast to east-central IA, overall MCS
structure has weakened again upon approach to southeast IA. It seems
unlikely that another bow evolution producing a coherent severe
swath will occur again as the western portion of the line has become
oriented west/east. With a lack of low-level mass response ahead of
the cluster, but still ample buoyancy to the IA/MO/IL border area,
strong to sporadic severe gusts will remain possible but should
diminish over the next couple hours.
..Grams/Hart.. 07/29/2025
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...LOT...ILX...DVN...DMX...
LAT...LON 42289086 41728955 41318931 41018934 40758952 40428995
40379046 40409172 40669197 41339228 41519152 42289086
MOST PROBABLE PEAK WIND GUST...55-70 MPH