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   PID: Synchronet 3.21a-Linux master/123f2d28a Jul 12 2025 GCC 12.2.0   
   TID: SBBSecho 3.28-Linux master/123f2d28a Jul 12 2025 GCC 12.2.0   
   BBSID: CAPCITY2   
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   FORMAT: flowed   
   ACUS11 KWNS 181449   
   SWOMCD   
   SPC MCD 181448=20   
   MNZ000-SDZ000-NDZ000-181945-   
      
   Mesoscale Discussion 0027   
   NWS Storm Prediction Center Norman OK   
   0848 AM CST Sun Jan 18 2026   
      
   Areas affected...Eastern North Dakota...northeast South   
   Dakota...northwest Minnesota   
      
   Concerning...Blizzard=20   
      
   Valid 181448Z - 181945Z   
      
   SUMMARY...Ground blizzard conditions are expected to become more   
   widespread through late morning/early afternoon across eastern North   
   Dakota, northwest Minnesota, and far northeast South Dakota.   
      
   DISCUSSION...14z surface observations show northerly winds beginning   
   to increase to 25-35 mph across northeast ND and far northwest MN as   
   a very cold (-5 to 5 F) air mass begins to push southward into the   
   Red River Valley of the North. Based on current wind speeds,   
   temperatures, and the condition of the existing snow pack (per NORSC   
   analyses), blowing  snow model output suggests that visibility   
   reductions to 1/4 mile or less should become increasingly common,   
   especially in open country. This is supported by recent web/plow   
   cams across the region that depict somewhat reduced visibility   
   within towns/sheltered areas but significant reductions in open   
   country. Reflectivity data from upstream radars in southern Manitoba   
   are also depicting light reflectivity streamers often indicative of   
   plumes of blowing snow which likely correlate with the most   
   significant visibility reductions.=20   
      
   These conditions should become more widespread through the late   
   morning and early afternoon as the arctic air mass continues to   
   surge south - especially as wind speeds increase into the 30-35 mph   
   range, which should correlate with scattered to widespread ground   
   blizzard conditions per blowing snow model output. Similar wind   
   speeds were observed yesterday and resulted in sustained 1/4 to 1/2   
   mile visibility reductions, so confidence is high in ground blizzard   
   impacts, even into areas immediately south of the existing snow   
   pack.   
      
   ..Moore.. 01/18/2026   
      
   ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj=   
   g!_X82anjh_nioytL-QSc7a9e0hRnLmzUyhU2JqhR5VKrGH6RuXk-cvhgdpZb_TjTMQsDCV9Nn4=   
   Sxm2ZJMoKrpqX2-rEM$  for graphic product...   
      
   ATTN...WFO...MPX...FGF...ABR...BIS...   
      
   LAT...LON   49030012 49079652 48979623 45859548 45419566 45229614   
               45139680 45139734 45389788 48450071 48850087 49030070   
               49030012=20   
      
      
   =3D =3D =3D   
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   --- SBBSecho 3.28-Linux   
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