WWUS20 KWNS 220342 SEL4 SPC WW 220341 INZ000-OHZ000-220500- SVR STRM WTCH 664 NWS SPC 1041P WED JUL 21 2004 THE NWS SPC HAS CANCELLED SVR STRM WTCH 664 ISSUED AT 635P FOR PORTIONS OF C AND NE IN EXTREME NW OH THOMPSON WWWW