ACUS11 KWNS 161404 SWOMCD SPC MCD 161403 MDZ000-VAZ000-DCZ000-WVZ000-161630- Mesoscale Discussion 0269 NWS Storm Prediction Center Norman OK 0903 AM CDT Mon Mar 16 2026 Areas affected...Central Virginia into Maryland Concerning...Severe potential...Watch possible Valid 161403Z - 161630Z Probability of Watch Issuance...60 percent SUMMARY...The severe weather threat will increase through the morning. DISCUSSION...Low-level moisture advection and cooling mid-level temperatures will continue to destabilize Virginia into Maryland this morning. Limited capping evident on the RNK and IAD 12Z RAOBs has resulted in scattered warm sector development ahead of the primary squall line. These messy-mode storms will continue to limit heating, but may have some severe threat as above mentioned destabilization continues within a strong wind profile. Low-level shear, already strong at 12Z, will continue to strengthen through the day. Therefore, any stronger/deeper updrafts could have some tornado threat late this morning into the early afternoon. The primary threat still appears to be the wind/embedded tornado threat later this afternoon as the secondary mid-level jet streak ejects east of the Appalachians and wind fields strengthen rapidly. However, even this threat is contingent on the evolution of these morning storms. A tornado watch will likely be needed at some point, potentially by later this morning if the morning storms start to show more organization/structure. ..Bentley/Thompson.. 03/16/2026 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...PHI...AKQ...LWX...RNK... LAT...LON 37357914 37957944 38687939 39507874 39677817 39637606 38697616 37687651 36797746 36587878 37357914 MOST PROBABLE PEAK TORNADO INTENSITY...100-130 MPH MOST PROBABLE PEAK WIND GUST...65-80 MPH MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN