Storm Prediction Center Mesoscale Discussion 2023

   Mesoscale Discussion 2023
   NWS Storm Prediction Center Norman OK
   0124 AM CDT Tue Aug 18 2026

   Areas affected...portions of central and eastern Nebraska

   Concerning...Severe Thunderstorm Watch 594...

   Valid 180624Z - 180730Z

   The severe weather threat for Severe Thunderstorm Watch 594
   continues.

   SUMMARY...An isolated severe wind and hail threat is likely to
   continue after the scheduled 07z/2 am CDT expiration of Severe
   Thunderstorm Watch 594, and a local extension in time and area may
   be needed for portions of the discussion area.

   DISCUSSION...A compact cluster of strong/severe storms continues
   over portions central NE at 0615z, with a recent report of a
   measured 79 mph gust at Grand Island, NE. This cluster continues to
   move southeast at 50 mph, and a severe wind risk will likely
   continue through 07-08z given a favorable near-term downstream
   environment. Thus a local extension in time and/or area may be
   needed to cover this threat.

   As low-level warm advection strengthens farther west, new
   thunderstorm development is anticipated over central/south-central
   NE within a steep mid-level lapse rate environment and modestly
   strong mid-level flow. A localized wind and hail threat is expected
   with this new development into the early morning hours, however the
   overall coverage is expected to remain such that a new watch is not
   currently expected.

   ..Bunting/Mosier.. 08/18/2026

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

   ATTN...WFO...OAX...GID...LBF...

   LAT...LON   40969856 41239741 41169713 40569701 40239714 40109838
               40129925 40149984 40380015 40600037 40840037 41470021
               41559957 40969856 

   MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 90 MPH
   MOST PROBABLE PEAK WIND GUST...65-80 MPH
   MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN