Storm Prediction Center Mesoscale Discussion 581

   Mesoscale Discussion 0581
   NWS Storm Prediction Center Norman OK
   0847 PM CDT Sun Apr 27 2025

   Areas affected...Parts of northwest/north-central Nebraska

   Concerning...Tornado Watch 178...

   Valid 280147Z - 280245Z

   The severe weather threat for Tornado Watch 178 continues.

   SUMMARY...The supercell tornado risk continues across portions of
   northwest into north-central Nebraska.

   DISCUSSION...Several long-lived right-moving supercells have merged
   into a supercell cluster over the last hour over Cherry County
   Nebraska. The LNX VWP depicts a 50-kt low-level jet overspreading
   backed surface winds -- yielding a large clockwise-curved hodograph
   (280 m2/s2 0-500m SRH). This wind profile, combined with rich
   boundary-layer moisture (lower 60s dewpoints) will continue to
   support a supercell tornado threat with northeastward extent over at
   least the next hour.

   ..Weinman.. 04/28/2025

   ...Please see www.spc.noaa.gov for graphic product...

   ATTN...WFO...LBF...UNR...

   LAT...LON   42050144 42270173 42510173 42970120 43060071 42850038
               42480026 42120069 42030114 42050144 

   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