Mesoscale Discussion 0154
   NWS Storm Prediction Center Norman OK
   0456 AM CST Sat Feb 19 2022

   Areas affected...Portions of eastern OH...the northern WV
   Panhandle...western/central PA...and western/central NY

   Concerning...Snow Squall 

   Valid 191056Z - 191600Z

   SUMMARY...Snow squalls will move quickly eastward this morning.
   Moderate to heavy snow will combine with strong/gusty winds to
   greatly reduce visibilities within the squalls. This will likely
   lead to brief blizzard conditions and hazardous travel for 30-60
   minutes in any given location as the snow squalls move through.

   DISCUSSION...10Z surface analysis shows an arctic front extending
   southward from a surface low from southern Ontario to Lake Erie and
   northern OH. Strong low-level convergence along the front and
   pronounced ascent associated with a 90-100+ kt mid-level jet streak
   have encouraged the renewed development of a low-topped, broken band
   of convective snow that is generally collocated with the arctic
   front. Recent radar reflectivity loops from KCLE/KBUF indicate these
   snow squalls are moving quickly eastward around 35-40 kt.

   Current expectations are for the cold front and accompanying snow
   squalls to begin impacting parts of northeastern OH, northwestern
   PA, and western NY over the next couple of hours (through 13Z/8 AM
   EST), and continuing eastward across more of western/central PA and
   western/central NY through 16Z/11 AM EST. Low-level frontogenesis,
   steepening low-level lapse rates, and the forcing of the front
   itself should support a brief period (30-60 minutes) of moderate to
   heavy snow as the squalls move through any given location. Strong
   winds will also accompany the frontal passage, with frequent gusts
   of 25-40 mph being observed in southern Ontario. These gusts will
   likely lead to rapid reductions in visibility as the moderate to
   heavy snow occurs within the snow squalls, resulting in brief
   blizzard conditions and rather hazardous travel through much of the
   morning commute.

   ..Gleason.. 02/19/2022

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

   ATTN...WFO...BTV...ALY...BGM...BUF...CTP...PBZ...CLE...

   LAT...LON   39747955 39828084 40178134 40558171 41158207 41508215
               41528169 41788136 41998062 42188010 42467950 42707903
               43257907 43367872 43427808 43307759 43347718 43377684
               43587636 43837625 44037635 44217636 44447587 44937524
               45057484 44977460 44807455 44517462 43657500 42607592
               41197766 40397860 39747955