Heat bursts are rare but I think they warrant being aware of. I’ll link a video below of what people did to survive the ones they experienced.
Non youtube link(attempt):
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Click https://duckduckgo.com/?q=youtube+satan's+storm+texas+swegle+studios&ia=web
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Click video tab at top, then the thumbnail with Yellow text. This should give you the watch here option
Youtube link:
Humidity plays a big role. You can still cool down at 52 C if the air isn’t very humid (that is, when the wet bulb temperature is low enough). Wet bulb temperature is a particularly useful metric because it incorporates evaporative cooling in it. Sadly most thermometers can’t measure it.