WxWatcher007 Posted February 3 Share Posted February 3 Mesoscale Discussion 0130 NWS Storm Prediction Center Norman OK 0939 PM CST Thu Feb 02 2023 Areas affected...Northern into central PA...central NY...VT...and western NH Concerning...Snow Squall Valid 030339Z - 030745Z SUMMARY...Snow squalls could continue spreading east-southeastward across parts of the Northeast during the next few hours. Rapid visibility reductions in bursts of heavy snow are possible. DISCUSSION...Latest mosaic radar imagery shows a well-organized snow squall moving east-southeastward at around 30-40 kt across parts of central NY. This band is generally focused along the leading edge of a southeastward-advancing arctic cold front, which is expected to continue overspreading parts of the Northeast during the next few hours. Regional VWP data depicts 50 kt of west-southwesterly flow in the lowest 3 km, which combined with strong/focused forcing for ascent and pockets of conditionally unstable boundary-layer conditions preceding the snow squall, should support its maintenance with eastward extent. The primary limiting factor continues to be somewhat dry low-level conditions, though it appears that the aforementioned factors are generally compensating for this. Therefore, the potential for rapid visibility reductions in bursts of heavy snow should continue spreading east-southeastward across the Northeast during the next few hours before a gradual decrease in intensity/organization. 1 Link to comment Share on other sites More sharing options...
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