Who have my players pissed off?

[Heliomance]

Again, my players keep out.

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So I sent my players on a sidequest to go kill a couple of Wendigos in Faerie. This they did, rather more easily than I was expecting, due to making the knowledge checks to know that they needed fire. All well and good. During the process of killing them, though, they managed to set a forest on fire. In Faerie.
Well, I declared that some minutes later, it started snowing, rapidly building up into a blizzard. This put out the fire, and the PCs managed to escape back to the Real World, but someone made it start snowing. Someone is responsible for that part of Faerie, and is somewhat annoyed at the PCs.

In my setting, while Faerie doesn't correspond exactly to the real world, there is a fairly strong correlation, and the local areas of Faerie inspired local mythology. This happened somewhere between Detroit and North Dakota. Who or what is there around there that is powerful enough to start the blizzard, cares about the area enough to put out the fire, and how proactive would they be about hunting the PCs down?

[Serpentine]

This is set in the real world, right? All that I can think of is a god (but I don't really know Native American mythology). What are deities like in your game? Could they be retooled as fey/spirit-types? Or could it be a representative of one?
...also what's the game?

[Tyrmatt]

Depending on how serious you want this to be, the Wintersmith of the Pratchett book of the same name could be refluffed into a similar vengeful personification of the elements. The wendigos could be his favoured children for their ability to endure his harshest winters.

I also recall something about Wendigo Lords existing in D&D. Perhaps a veritable king of the Wendigos who is also a super-powered wendigo could be good?

http://en.wikipedia.org/wiki/Abenaki_mythology mentions an eagle spirit that makes it snow when it flaps its wings over an area.

More details on the system would be appreciated though.

[Heliomance]

3.5 homebrew, real world where all myths are true. Deities for the most part are as they are in their respective mythologies, and generally rule the part of Faerie that corresponds to the area in which their mythology held sway. I was thinking something less powerful than a god, because if a god gets on their case they are royally boned.

Okay, Googling "Psônen" produces a bunch of pages, about half of which have just the name and no info, and the other half have the exact same line from Wikipedia. Why is there no info on this thing?

[Starbuck_II]

Gohone is a god of Iroquis who is the spirit of winter.

GA-OH is the wind giant: he has a giant bear, Moose, and Fawn companion. He could have caused the blizzard.

[Amphetryon]

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Make him a Spirit Shaman or Druid, perhaps drawing some inspiration from Anishinabek culture, as that's somewhat geographically accurate.

[Serpentine]

I was sort of thinking Supernatural-style gods, butcheh, I thought that might be a problem.
Wellp, I'm out. Consider looking at Inuit mythology, though, perhaps.

[Zherog]

The Detroit area has an urban legend/myth about a creature named Nain Rouge (French for Red Dwarf). Here's the Wikipedia page, and here's a 3.5/d20 Modern version I wrote for Kobold Quarterly's webiste. Updating to be pure 3.5 would be as simple as dropping "damage threshold, replacing the Improved Damage Threshold feat, and changing the Knowledge (arcane lore) skill to either Knowledge (arcana) or Knowledge (nature).

Nain Rouge would work for you if you were looking for something to harass and prank the PCs rather than outright hunting them down.

[Project_Mayhem]

Use Ithaqua

[Jack Zander]

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Make him a Spirit Shaman or Druid, perhaps drawing some inpsiration from Anishinabek culture, as that's somewhat geographically accurate.

This. Oh God, 100 times this.

[zephyrkinetic]

You could have a group of good-ol'-crunchy-granola Hippie pagans. I'm sure there's some covens or circles or whatever in the midwest whose names you could use. They saw the forest fire, lit some incense, invoked Neptune, whatever.

[Telonius]

Sounds to me like they're clearly dealing with the Witch of November.

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The ship was the pride of the American side
Coming back from some mill in Wisconsin
As the big freighters go it was bigger than most
With a crew and the Captain well seasoned.

Concluding some terms with a couple of steel firms
When they left fully loaded for Cleveland
And later that night when the ships bell rang
Could it be the North Wind they'd been feeling.

The wind in the wires made a tattletale sound
And a wave broke over the railing
And every man knew, as the Captain did, too,
T'was the witch of November come stealing.

The dawn came late and the breakfast had to wait
When the gales of November came slashing
When afternoon came it was freezing rain
In the face of a hurricane West Wind

[Iferus]

There is a man in icelandic mythology that would do this. I don't know if the saga can be found on the internet, but it is called Bard the Snowfell God.

[blackjack217]

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this just this