
MD 0044 CONCERNING HEAVY SNOW FOR PORTIONS OF FAR WESTERN NEW YORK
Mesoscale Discussion 0044 NWS Storm Prediction Center Norman OK 1016 PM CST Mon Jan 20 2025 Areas affected...portions of far western New York Concerning...Heavy snow Valid 210416Z - 210815Z SUMMARY...Heavy lake-effect snow should continue into the early morning hours, with 3 inch/hour intermittent snowfall rates likely. DISCUSSION...The lake-effect snow-band has taken a more southwest-to-northeast orientation over the past hour or so, with heavy snow recently reported as far south as the Dunkirk Airport. 04Z mesoanalysis shows increased boundary-layer convergence and moistening along a northern Chautaugua to Erie County line, which will support continued heavy snowfall rates within the main band. Snowfall accumulations over very short time periods via reports suggest that near 3 inch/hour snowfall rates may be occurring with this snow band. With the 04Z mesoanalysis showing 7.5 C/km 0-3 km lapse rates present over water (where a long moisture fetch is in place), 2-3 inch/hour snowfall rates may continue into the early morning hours, as also suggested by latest high-resolution guidance consensus. ..Squitieri.. 01/21/2025 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...BUF... LAT...LON 42467965 42677916 42857882 42937844 42827827 42577845 42407890 42337923 42357944 42357954 42467965