June 9, 2025

Storm Prediction Center Mesoscale Discussion 893

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Mesoscale Discussion 893
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   Mesoscale Discussion 0893
   NWS Storm Prediction Center Norman OK
   0804 PM CDT Mon May 19 2025

   Areas affected...Parts of northwest Arkansas

   Concerning...Tornado Watch 297...

   Valid 200104Z - 200230Z

   The severe weather threat for Tornado Watch 297 continues.

   SUMMARY...The risk of tornadoes (some possibly strong) and damaging
   winds continues spreading eastward across parts of northwest
   Arkansas.

   DISCUSSION...A north/south-oriented MCS is tracking eastward across
   northwest Arkansas. Around 50 kt of 0-6 km shear (per area VWP data)
   is oriented oblique to the gust front of this system, which is
   supporting the maintenance of several deeper/embedded rotating
   updrafts -- aided by moderately unstable surface-based inflow (see
   LZK 00Z sounding). These embedded supercell/mesovortex structures
   will continue to pose a tornado risk (some possibly strong) with
   eastward extent -- given ample low-level streamwise vorticity (300
   m2/s2 0-1km SRH sampled by LZK VWP). Damaging winds will also remain
   possible, especially in the vicinity of any
   supercells/mesovorticies.

   ..Weinman.. 05/20/2025

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

   ATTN...WFO...LZK...TSA...

   LAT...LON   35079464 35849415 36379397 36449353 36449321 36309276
               36059257 35209298 34949338 34909436 35079464 

   MOST PROBABLE PEAK TORNADO INTENSITY...120-150 MPH
   MOST PROBABLE PEAK WIND GUST...75-90 MPH
   MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN


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2025-05-20 01:42:03