Some storm related questions:

[Kristoffer O]

Spontaneous rains and storms have the same effects as spells IIRC. They appear more often if you have growth and turmoil respectively.

Storm and mist are not cumulative IIRC, but I'm not 100 on this.

Edit: Rain in a cold province is snow.

[llamabeast]

Storm and mist are cumulative on precision, I've used it to good effect before against a horde of Abysian fire mages. They couldn't hit a thing!

[Jazzepi]

llamabeast said:
Storm and mist are cumulative on precision, I've used it to good effect before against a horde of Abysian fire mages. They couldn't hit a thing!

I've tested this. They are cumulative. Mist + Storm = 1/4 percision for the archers. It's good stuff.

Jazzepi

[sum1lost]

One last question that is only vaguely related-

Astral fires - does it affect fire-immune troops? And, is it dampered by rain/storms?