WWUS20 KWNS 162258 SEL6 SPC WW 162258 DCZ000-MDZ000-NYZ000-PAZ000-VAZ000-WVZ000-CWZ000-170000- URGENT - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WATCH - NUMBER 686 NWS STORM PREDICTION CENTER NORMAN OK 658 PM EDT FRI OCT 16 2026 THE NWS STORM PREDICTION CENTER HAS CANCELLED SEVERE THUNDERSTORM WATCH NUMBER 686 ISSUED AT 125 PM EDT FOR PORTIONS OF DISTRICT OF COLUMBIA MARYLAND NEW YORK PENNSYLVANIA VIRGINIA WEST VIRGINIA COASTAL WATERS