US Mesoscale Discussions

Storm Prediction Center Mesoscale Discussion 866

Mesoscale Discussion 866
< Previous MD
MD 866 graphic

   Mesoscale Discussion 0866
   NWS Storm Prediction Center Norman OK
   0408 AM CDT Tue May 21 2024

   Areas affected...southeastern Nebraska

   Concerning...Severe Thunderstorm Watch 274...

   Valid 210908Z - 211115Z

   The severe weather threat for Severe Thunderstorm Watch 274

   SUMMARY...Local severe risk continues across the southeastern
   quarter of Nebraska.

   DISCUSSION...Thunderstorms continue across a sizable portion of
   southeastern Nebraska at this time, with the strongest convection in
   a roughly north-south band crossing the Howard/Hall/Kearney/Franklin
   County vicinity.  This convection is ongoing either side of the
   primary surface baroclinic zone, near the nose of a 60-kt
   south-southwesterly low-level jet.

   Downstream from this eastward-moving band of storms, around 1500
   J/kg mixed-layer CAPE is indicated by RAP-based objective analysis
   on the warm side of the front.  This -- along with lift provided by
   the surface front and aforementioned low-level jet -- should allow
   storms to persist over the next couple of hours, with a couple of
   wind gusts to near severe levels still possible, along with marginal

   ..Goss.. 05/21/2024

   ...Please see for graphic product...


   LAT...LON   39909896 40599885 41449792 42059632 41079567 40409581

Top/All Mesoscale Discussions/Forecast Products/Home

Source link