Storm Prediction Center issues Mesoscale Discussion #606 concerning SEVERE THUNDERSTORM WATCH 188...189 [Most Prob: Tornado: 85-115 MPH, Hail: 1.00-1.75 IN, Gust: 55-70 MPH]619
ACUS11 KWNS 292028
SWOMCD
SPC MCD 292027
OHZ000-KYZ000-INZ000-ILZ000-292230-
Mesoscale Discussion 0606
NWS Storm Prediction Center Norman OK
0327 PM CDT Tue Apr 29 2025
Areas affected...southern IL/IN into southwest OH.
Concerning...Severe Thunderstorm Watch 188...189...
Valid 292027Z - 292230Z
The severe weather threat for Severe Thunderstorm Watch 188, 189
continues.
SUMMARY...Strong to severe thunderstorms producing damaging wind
gusts will move from southern Illinois into southern Indiana the
next 1-2 hours. Additional severe risk may redevelop into southwest
Ohio this evening.
DISCUSSION...A mature MCS continues to move from southern IL into
southern IN this afternoon. This activity has sporadically produced
damaging gusts and isolated hail over the last couple of hours, with
a couple areas of line-embedded rotation also noted. These storms
should maintain intensity as it moves east across a moderately
unstable airmass with steepening low-level lapse rates continuing to
support damaging wind potential across Severe Thunderstorm Watch
189.
By evening, this MCS is expected to approach southwest OH and Severe
Thunderstorm Watch 188. The airmass across this area has shown signs
of recovery from a midday cluster of severe storms now approaching
western PA. Temperatures have rebounded into the mid/upper 70s with
dewpoints in the mid/upper 60s. This area could support a continued
severe risk into this evening. As such, watch clearance has not been
recommended as redevelopment of new convection is possible.
Likewise, the cluster moving into southern IN also may approach this
area in the next 2-3 hours.
..Leitman.. 04/29/2025
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...ILN...LMK...IND...PAH...ILX...
LAT...LON 39028811 39978441 39828393 39468362 39168363 38878409
38558476 37958663 37678822 37808866 38618855 39028811
MOST PROBABLE PEAK TORNADO INTENSITY...85-115 MPH
MOST PROBABLE PEAK WIND GUST...55-70 MPH
MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN
Source:
Storm Prediction Center issues Mesoscale Discussion #606 concerning SEVERE THUNDERSTORM WATCH 188...189 [Most Prob: Tornado: 85-115 MPH, Hail: 1.00-1.75 IN, Gust: 55-70 MPH]---------------
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