Scorers for the Owls were Liam Davis 2, Jon Oglesby 2 and Brody Robertson.
A full report from the match can be read by clicking the link below:
Southall match report
Cleethorpes will find out their semi final opponents on Monday lunchtime.
Attention now switches back to the Toolstation NCEL Premier Division when the visitors to Bradley on Saturday 25th February will be Pickering Town. Kick off will be at 3pm