Twenty reasons to leave city right now

1. Riots
2. Coup
3. Demonic infestation
4. Plague of serial killers
5. Tomorrow 100 random people will be sacrificed to the local deity
6. Pestilence
7. Famine
8. Enemy army is 1-3 days away
9. Prophecy says that city will be destroyed tomorrow
10. They think that you are wanted criminal (s)
11. Monsters emerging from the sewers
12. Early signs of the earthquake
13. Fire
14. Flood (great in cities in the middle of the desert)
15. Wrath of gods
16. Mass hallucinations of unknown cause
17. Mass madness
18. Dead are rising from the graves
19. Almost everyone can feel imminent magical disaster
20. Roll twice and mix the effects!