MD 0130 CONCERNING SNOW SQUALL FOR NORTHERN INTO CENTRAL PA…CENTRAL NY…VT…AND WESTERN NH
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. ..Weinman.. 02/03/2023 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...GYX...BOX...BTV...ALY...BGM...BUF...CTP...PBZ... CLE... LAT...LON 40907812 41077889 41447959 41837965 42877646 43357540 44127417 45067300 45127224 45187108 44417100 43857138 42817255 41807486 41177670 40907812