SCVMM - By implementing the PROtip, how to clear its corresponding alert in SCOM

environment for SCOM powershell:
"$ScomServer='FQDN of ScomServer'
add-pssnapin 'Microsoft.EnterpriseManagement.OperationsManager.Client';
set-location 'OperationsManagerMonitoring::';
new-managementGroupConnection -ConnectionString:$ScomServer;"