"Due to operational requirements during this week's extreme weather, trams on Victoria Street will be replaced by buses from first service Thursday 16 to last service Friday 17 January.
Trams replacement buses will operate to the normal service frequency. However, they may not arrive at the scheduled time. The tramways suggests you allow extra time for your journey."
Yes, it is a shade warm in town today (44.C), so the cross suburban services have been sacrificed for the city services.
Keep cool, keep safe from under the AC and the wires.