All 12 Uses

tempest
in
The Mark of Athena
(Auto-generated)

Piper knew what he was doing, but he'd succeeded in summoning Tempest only three times since they'd met the storm spirit at the Wolf House last winter.†
p. 120.3 *
"Tempest," Jason said, grinning broadly.†
p. 121.8
Piper had never been comfortable with Tempest.†
p. 122.1
Tempest raced down the road with Blackjack soaring overhead.†
p. 122.2
Tempest turned so quickly, Piper almost fell off.†
p. 122.6
"Lord Bacchus!" she interrupted, slipping off Tempest's back.†
p. 124.7
Piper stumbled back from Tempest.†
p. 129.9
Jason and Percy charged each other, but Tempest and Blackjack balked long enough for Piper to leap out of the way.†
p. 131.1
The horses pulled away from each other—Tempest thundering in protest, Blackjack flapping his wings.†
p. 131.6
Blackjack cantered away as Tempest reared in confusion.†
p. 132.1
Tempest was nowhere to be seen.†
p. 134.9
Tempest and Anion also hadn't shown themselves.†
p. 354.2

Definitions:

(1) (tempest)
a violent commotion or disturbance -- especially a violent storm or emotional outburst

The expression tempest in a teapot describes people as being upset over an unimportant matter.
(2) (meaning too rare to warrant focus)