Listen up - when you hear Strider's emergency warning and notice those red skies, you've got maybe 2-3 minutes to find shelter (this happens because the Zone's energy is building up to dangerous levels). Any solid building works, like houses with intact walls or those underground bunkers marked on your map, and here's something interesting - some players actually map out shelter locations while exploring, which is pretty smart since you never know when an emission will hit.

The radiation waves during these events are no joke, they'll absolutely wreck you if you're caught outside or in damaged buildings, so once you're inside stay put until Strider gives the all-clear signal. When you're out exploring, try to keep mental notes of safe spots (especially those underground areas, since they're always reliable), and remember that emissions are actually the Zone purging itself of excess energy, which is why they're so deadly. If you hear that warning while in the middle of something important, drop everything and run - no loot is worth getting caught in the open during an emission storm.