Perhaps some cooling in the hat would be appropriate. GPWS will warn of gradients of terrain,with comparisons of closing speed. So a sudden change of direction may pick up the first impressions,until the computing element can decide the rate of gradual approachment to a perceived threat. It will give indications,based on it,s own programmed limits. It does not mean that pilots are not aware of,where they are. They simply record that GPWS warning came to us here. It,s a common practice to react in Gpws false warnings. Most common Practice is to do what it wants You to do,so i guess this was the case.You will be safe,then. (from the upper floors and eager reporters,too) I have had many of those,some for reminders,and most for just seeing the limits of the system. -and for pilots today, EGPWS is beyond my time in cockpits,so maybe someone would like to tell about that gadget,to ease also the minds of any interested,in here.