ACUS11 KWNS 280433
SWOMCD
SPC MCD 280433=20
SDZ000-NEZ000-280600-

Mesoscale Discussion 0583
NWS Storm Prediction Center Norman OK
1133 PM CDT Sun Apr 27 2025

Areas affected...Central Plains

Concerning...Tornado Watch 178...

Valid 280433Z - 280600Z

The severe weather threat for Tornado Watch 178 continues.

SUMMARY...Severe threat continues across northern Nebraska into
southern South Dakota. WW178 will likely need to be extended beyond
05z.

DISCUSSION...Intense LLJ currently extends across western KS into
south-central SD. This feature will gradually translate east,
focusing into eastern SD by 08z. Current radar trends suggest an MCS
is maturing along the SD/NE border, and this complex should
propagate downstream along the nose of the LLJ. Long-lived supercell
-- tornadic at times -- is tracking across northeast Cherry County
NE within a favorable warm advection zone, and very strong 0-3km
SRH. Some tornado threat continues with this supercell, and any
other discrete updrafts, though a gradual evolution into a larger
complex is expected. Severe threat will continue well past 05z and
ww178 will likely be extended to account for this scenario.

..Darrow.. 04/28/2025

...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!9CAtTN9ddHX27BhEi6RkjbpvXIZxMumNzSRYr6drm6Go8JfzjffguUFEM7lPZpd580BEFt6yA= YDEawiNUlx25FYZjYY$ for graphic product...

ATTN...WFO...FSD...ABR...LBF...UNR...

LAT...LON 43110198 44229910 42989833 42010160 43110198=20

MOST PROBABLE PEAK TORNADO INTENSITY...100-130 MPH
MOST PROBABLE PEAK WIND GUST...65-80 MPH
MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN


=3D =3D =3D
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