Tanis is sensitive to nature

Tanis felt a growing sense of urgency. He could see no end to the storm clouds massing to the north. Autumn storms were rare, especially ones with this ferocity. The wind was bitter, too, and it seemed odd that the storm came out of the north, when they generally swept east, across the Plains. Sensitive to the ways of nature, the strange weather upset Tanis nearly as much as Raistlin’s fallen stars.

Excerpt From Dragons of Autumn Twilight, pg 118
Margaret Weis & Tracy Hickman