I love peoples daily schedules in this game lol. Once I had to find Arngir (the greybeard that talks to you) and he was meditating in a shaft of light. I love how in Whiterun people go to eat at the Bannered Mare in the evening. Wulfgar's shouts are really cool, though they terrified me at first. Though he was attacking me for trespassing lol.
Haha yeah, I was trying to find out wtf was causing all that shouting so I ended up using the Detect Life Shout, and lo and behold, he was up on the tower shouting at the wind
I'm not sure if it's him or not, but if you use Storm Call when he's up there, he'll shout and the storm will end up disappearing fairly quickly. Clear Skies, maybe?