$GSPmsgHash{$date} = {
    $alertLv,
    $src,
    $srcD,
    $probD,
    $days_between,
}

##</code><code>##

$GSPmsgHash{$date} = {
    alert_level    => $alertLv,
    source         => $src,
    source_detail  => $srcD,
    problem_detail => $probD,
    days_between   => $days_between,
}

##</code><code>##

my $alert_level = $GSPmsgHash{$date}->{alert_level};