
MD 0082 CONCERNING HEAVY SNOW FOR PARTS OF THE MID-ATLANTIC
Mesoscale Discussion 0082 NWS Storm Prediction Center Norman OK 0149 PM CST Tue Feb 11 2025 Areas affected...parts of the Mid-Atlantic Concerning...Heavy snow Valid 111949Z - 112345Z SUMMARY...A band of heavy snow developing across the Mid-Atlantic region will be capable of moderate to heavy snowfall rates upwards of 1-2 inches per hour. Similar bands and snowfall rates will be possible through early evening. DISCUSSION...Regional radar imagery shows an organized precipitation/snow band developing from west-central VA into the Chesapeake Bay area. Recent snowfall reports from central VA and surface observations reporting visibility reductions between 0.25 to 0.5 mile suggest moderate to heavy snowfall rates are ongoing. This band is largely being driven by a combination of strong warm-air advection and frontogenesis within the 925-700 mb layer and may persist for another hour or two given the strength of forcing for ascent. Additional banding is possible heading into the late afternoon hours as a weak mid-level impulse - and the primary precipitation shield - migrates into the region and to the north/northeast into northern MD and DE. Recent guidance suggests heavy snow potential will likely peak across the Chesapeake Bay area during the 21-00 UTC period. Although surface temperatures across this region remain near/above freezing, dewpoints in the 20s suggest that temperatures will likely fall to below freezing due to low-level evaporative cooling associated with the onset of precipitation, which should support heavier snowfall rates later this afternoon. ..Moore.. 02/11/2025 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...PHI...AKQ...LWX... LAT...LON 39697503 39597727 39497808 39297861 39027876 38647871 38157822 37727772 37477737 37357681 37327624 37597546 37947527 38287504 38927472 39397424 39607435 39667473 39697503