Administrators NorthGeorgiaWX Posted March 10 Administrators Share Posted March 10 MD 0215 CONCERNING HEAVY SNOW FOR NORTHEAST OHIO INTO WESTERN/CENTRAL PENNSYLVANIA AND WESTERN NEW YORK Mesoscale Discussion 0215 NWS Storm Prediction Center Norman OK 1113 AM CDT Sun Mar 10 2024 Areas affected...Northeast Ohio into western/central Pennsylvania and western New York Concerning...Heavy snow Valid 101613Z - 102015Z SUMMARY...Snow squall potential will persist into the early afternoon hours across northeast Ohio into western/central Pennsylvania, and western New York. DISCUSSION...Over the past few hours, a combination of broken cloud cover and low/mid-level cold air advection over the upper OH river valley and lower Great Lakes region has allowed for low-level lapse rates to steepen to 7-8 C/km. These steep lapse rates are supporting shallow convection across central to western PA with a history of producing snow squall conditions (reduced visibility to 0.25 mile at times with moderate snowfall rates and wind gusts upwards of 25-30 mph). The expectation is for this thermodynamic regime to largely remain in place through at least early afternoon before cold air advection in the 925-850 mb layer wanes later in the day. As low/mid-level destabilization continues for the next few hours, SBCAPE values should approach 250 J/kg, resulting in an intensification of precipitation/snowfall rates within convective snow showers. Recent high-res guidance suggests additional snow bands will propagate off of Lake Erie through early afternoon into northeast OH, PA, and western NY. One such band is evident in regional reflectivity across far western NY, lending confidence in this overall scenario. Consequently, the potential for snow squalls should continue for the next several hours. ..Moore.. 03/10/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...BGM...BUF...CTP...PBZ...CLE... LAT...LON 41328191 41648123 42557910 42757886 43057888 43307869 43187713 42927671 42457659 41767653 41117684 40297758 39927815 39757875 39727937 39747984 40028047 40508133 40828171 41328191 Read more View the full article Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.