Sometimes you want to know what the weather is like in-game, whether solely for flavor or because it’s relevant to the party’s hex-crawl. Can they see their enemies amid the downpour? Will muddy ground impede their movement? Did they bring cold-weather gear? Could they get caught in a flash flood?
For a long time, I’ve been rolling a couple of six-siders to figure out what the weather’s like. Now I’ve formalized my system in order to pass the savings on to you, the consumer.
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Modifiers: -1 to -3 in winter, +1 to +3 in summer
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Modifiers: -1 in dry season, +1 to +3 in wet season
0-1: Clear skies
4: Light (drizzle / flurry / haze)
5: Moderate (rain / snow / fog)
6-8: Heavy (thunderstorm / blizzard)
9: To The Max (hurricane / tornadoes)