Curious as to why the BSC-ISIs had tripped last night, I used the awesome "plot last WD trip" feature on the ISI watchdog screens. They had tripped at the following times:
ETMY: Jul 26 2013 06:02:08 PDT (Jul 26 2013 13:02:08 UTC, 1058878944)
ITMY: Jul 26 2013 06:02:10 PDT (Jul 26 2013 13:02:10 UTC, 1058878946)
BS:   Jul 25 2013 18:52:17 PDT (Jul 26 2013 01:52:17 UTC, 1058838753)

The HAM-ISIs and all HEPIs survived the night.