Meso disco issued
https://www.spc.noaa.gov/exper/mobile/#md_page
Mesoscale Discussion 0006NWS Storm Prediction Center Norman OK1047 AM CST Sat Jan 06 2024Areas affected...Central/Southern PA...Eastern WVPanhandle...Western/Central MD...Far Northern VAConcerning...Heavy snow Valid 061647Z - 062145ZSUMMARY...Snowfall rates are expected to increase across the region over the next several hours. Rates around 1"/hr are likely across much of the area, with localized 2"/hr rate possible, particularly across south-central PA. DISCUSSION...Recent satellite imagery shows a low-amplitude shortwave trough over eastern TN, moving quickly northeastward. Regional radar imagery shows a large area of precipitation across the Mid-Atlantic and into southern portions of the Northeast, within the warm conveyor preceding this shortwave. Attendant low-level flow is forecast to strengthen over the next several hours as the shortwave continues northeastward. Additionally, the attendant surface low, which is currently over south-central NC, is expected to deepen over the next few hours as it moves northeastward across central NC and southeast VA. These factors will result in an area of strong low-level frontogenesis over VA, with associated lift focused into central/southern PA, the eastern WV Panhandle, western/central MD, and far northern VA. Most of this area is currently experiencing moderate snow, but snowfall rates are expected to increase over the next few hours as the evolution described above occurs. Rates around 1"/hr are likely across much of the area, with some areas experiencing 2"/hr, particularly south-central PA where banding appears most likely. Highest rates are expected to be centered around 20Z, with rates then likely diminishing over this area as the shortwave continues northeastward. ..Mosier.. 01/06/2024...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...PHI...CTP...LWX...PBZ...RLX...
