Thanks! I am glad you like it. I, too, think non-combat random encounters are a fantastic way to inject little bits of flavor and story into the game. Even little things like "You think you catch a glimpse of a unicorn" or "You come upon the ruins of an old fortress -- no dungeon or monsters, just some crumbling walls and mossy flagstones." Interesting weather would be perfect for tables like this.

I've been using the table above to very good effect (my players' first reaction to the tornadoes was to wonder whether enemy spellcasters had conjured them to kill the PCs). However, I was driving around yesterday and came up with an alternate idea, which wound up looking something like this:

Weather in the Dessarin Valley
1d6:
1 Pleasant. 2+ days in a row: Eerily calm; no breeze, no chirping insects, no birds singing or squirrels scampering. (Next time you get a 2 or higher on this table, use the "2+ days in a row" result: the Eerily Calm days always predict disaster.)
2 Several minor tremors throughout the day. 2+ days in a row: Earthquakes.
3 Pouring rain. 2+ days in a row: Rain storm; torrential flooding.
4 Sunny, hot, and dry (or humid, if it rained yesterday) 2+ days in a row: Wildfires.
5 Cold and windy. 2+ days in a row: Snow, ice, or hail storm.
6 Overcast, with rumbles of thunder and strikes of lightning. 2+ days in a row: Tornado.

Worsening: If facing the same hazard multiple days in a row, the DM secretly increases all check and save DCs by 2 for each day after the first. "Eerily Calm" days count towards the number of days for whatever hazard comes after them, so a string of Eerily Calm days in a row means you are eventually going to get hit with a real doozy...

I might try this table later in the campaign as it has a slightly higher chance of extreme weather.

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