"I wish I could believe it. But I'll never be half the warrior my father was."—Stormfur to Firestar about how good of a warrior he is Sunset, page 251
Stormkit and Stormpaw
Stormpaw became an apprentice and his mentor became his father Graystripe but he soon left. The RiverClan deputy Stonefur was his new mentor. When TigerClan formed, Tigerstar began inflicting half-clan hatred. He had Mistyfoot, Stonefur, Featherpaw and Stormpaw imprisoned. When Firestar, Graystripe and Ravenpaw came to rescue them, they saw Blackfoot murder Stonefur.
The remaining half-clan cats were later saved by Graystripe and his friends Firestar and Ravenpaw. Firestar offered to shelter them in ThunderClan and they accepted. Stormpaw's new mentor was Graystripe. He was allowed to go fight BloodClan in LionClan.
He, his sister Featherpaw, their new friends Bramblepaw and Ashpaw from ThunderClan as well as Tawnypaw attacked Bone-who killed Whitestorm, Firestar's deputy at the time -, the BloodClan deputy. The five of them together were able to kill him.
After the battle Mistyfoot was named deputy. They were able to return to RiverClan since Tigerstar had been killed by Scourge.
Stormfur became a warrior of RiverClan. Not much is known about his warrior life, except his journey to the sun drown place. Feathertail, along with Brambleclaw, Crowpaw, Squirrelpaw and Tawnypelt, are recived a prophecy saying that they must find Midnight. Though Stormfur was not part of the prophecy, he goes along with the cats on the quest to find Midnight, just to keep his sister safe. During the journey, Stormfur develops strong feelings for the ThunderClan apprentice, Squirrelpaw.
Soon, the questing cats found Midnight, who apparently was a badger. She tells them to return to the clans and lead them to a new place. After they receive her message, the cats try to return home, but run into the Tribe of Rushing Water in the mountains. They stay with them for a while. Stormfur becomes close with Brook Where Small Fish Swim, a prey-hunter. The tribe belives that Stormfur is a cat in one of their prophecies. They tell him that he must kill Sharptooth, a mountain lion.
However, Stormfur refuses and the tribe take him as prisoner. Later, the questing cats help Stormfur escape as they encounter Sharptooth. Sadly, his sister, Feathertail, killed Sharptooth but died herself. Full of sadness and grief, the cats return home.
Stormfur returns to the clans and leads them to their new home. However, they passed through the mountains, where Stormfur renuited with Brook. Since he realized he had no kin in the clans anymore, Stormfur decides to stay with the tribe and Brook. The clans are saddened but leave without him.
Stormfur and Brook join RiverClan to prove their loyalty. However, Hawkfrost attacks them and they are exiled from RiverClan. They soon join ThunderClan again and settle there.
During Outcast, two tribe cats, Talon and Night, come to ThunderClan and beg them for help, sayig that there were rouges taking over them. Stormfur and Brook are asked to come back to help them fight the rouges. They, Squirrelflight, Brambleclaw, Crowfeather, Breezepaw, Jaypaw, Lionpaw, Hollypaw, and Tawnypelt journey to the mountains. Stormfur and the clan cats fight off the rouges. After that, Stormfur and Brook were given a chance to stay with the Tribe.
Tribe of Rushing Water
Stormfur joined the Tribe of Rushing Water during the quest to the Lake territories. He became mates with Brook and remaned there till Twilight. During Starlight, Stormfur and Brook were accused of killing a cat and were exiled.
Soon, Stormfur and Brook re-joined the tribe after helping them fight off rouge cats along with some clan cats. They satyed there for the rest of their lives. He became a cave-guard. Later, the clan cats traveled back to visit the mountains and discovered that Stormfur and Brook had two kits, Pine That Clings to Rock and Lark That Sings at Dawn. Stormfur is still living in the Tribe of Rushing Water currently.
Stormfur and his mate Brook became loners after being exiled from the Tribe. However, they journeyed to the Lake territories and joined the clans for awhile.