Storm Prediction Center Mesoscale Discussion 2235

   Mesoscale Discussion 2235
   NWS Storm Prediction Center Norman OK
   0530 AM CST Thu Nov 27 2025

   Areas affected...Parts of central Upper MI into northern Lower MI

   Concerning...Heavy snow 

   Valid 271130Z - 271630Z

   SUMMARY...Heavy lake-effect snow bands will continue through the
   morning. Snow rates may approach or exceed 1-2 inches per hour on a
   localized basis.

   DISCUSSION...Cold cyclonic flow associated with a deep low over
   western Quebec has generated several lake-effect snow bands over the
   Great Lakes region. In particular, multiple snow bands are affecting
   northern Lower MI this morning, with some apparent upstream
   connection to bands across central Upper MI that are emanating from
   Lake Superior. The KAPX and KMQT VWPs depict little change to the
   low-level wind field over the last several hours, and guidance
   generally suggests this northwesterly flow regime will remain
   relatively unchanged through the remainder of the morning. This
   should allow ongoing bands to persist, while some cooling aloft
   (with 700 mb temperatures dropping to near/below -20 C) may
   gradually increase snow-to-liquid ratios with time. Snow rates of
   1-2 inches/hour (locally greater) will be possible within these
   bands, especially if a dominant single band can develop. Wind gusts
   of 30-45 mph combined with the locally heavy snow rates will result
   in significant visibility reductions in and near the strongest
   bands.

   ..Dean.. 11/27/2025

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

   ATTN...WFO...APX...MQT...

   LAT...LON   46488655 46088599 45348492 44758394 44358393 44148417
               44248498 45268623 46238709 46538710 46488655