It looks like Global 24 radio is back on the air, although I have always had trouble here in the UK getting any decent reception. Their schedule (limited) for this weekend is as follows:
March 21, 2015
Saturday 2200 UTC on 11825 kHz – The Rock Pile
Saturday 2300 UTC on 11825 kHz – The Rock Pile
March 22, 2015
Sunday 0000 UTC on 11825 kHz – News > RAIN Report
Sunday 0100 UTC on 11825 kHz – Travel with Rick Steves Radio Show
I shall try the late evening Saturday broadcasts and see if the signal is any better.