Mesoscale Discussion 0217
   NWS Storm Prediction Center Norman OK
   1140 AM CDT Fri Mar 20 2020

   Areas affected...Eastern OH...Western PA...Northern WV Panhandle

   Concerning...Severe potential...Watch unlikely 

   Valid 201640Z - 201845Z

   Probability of Watch Issuance...20 percent

   SUMMARY...Isolated damaging wind gusts are possible across eastern
   OH, western PA, and the northern WV Panhandle over the next few
   hours.

   DISCUSSION...Current surface analysis places the front from far
   western Lake Ontario southwestward into southwest IN. Gradually
   strengthening updrafts have been noted over the past half hour
   within the line segments along and just ahead of the front across
   OH. This modest increase in storm strength is coincident with minor
   increases in low-level moisture and instability. This overall trend
   of gradually increasing storm strength is anticipated over the next
   hour or two as the storms move across eastern OH and into western
   PA. Limited instability will likely temper the overall severe threat
   (as evidenced by the lack of lightning thus far). However, given the
   strong deep-layer shear already in place (supported by 850 mb wind
   of 50-60 kt and 500 mb winds from 90-100 kt), strong downdrafts
   capable of damaging wind gusts are occasionally possible.

   ..Mosier/Thompson.. 03/20/2020

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

   ATTN...WFO...BUF...CTP...PBZ...RLX...CLE...ILN...

   LAT...LON   41788064 42077934 41667817 40057926 39368146 39698365
               41788064