She is called by many names, but to sailors of Lake Erie, she is known as the Storm Hag. The creature is a sea witch, an evil Jenny Greenteeth who summoned …

She lurks below the surface of the lake, her lithe form forever swimming through the weeds and the mire. Pale and green of skin, her yellow eyes shine luminously in the dark, and her thin long arms wrap themselves around the unwary, while foul-green pointed teeth sink into soft flesh and sharp nails at the end of long bony fingers stroke you into the deepest sleep there is. She is called by many names, but to sailors of Lake Erie, she is known as the Storm Hag. 

The creature is a sea witch, an evil Jenny Greenteeth who summoned the storms and pulled shipwrecked sailors down into her evil embrace to live with her forever at the bottom of the lake. Sometimes she waits until the calm right after the storm to attack. When the sailors relax their guard, lulled into thinking that the danger had passed with the storm, the Storm Hag bursts forth from the dark waters of the lake, spewing forth lightening and wind like venom. And the ship will vanish – never to be seen again.

Across the northern parts of Ireland and Scotland people sometimes whisper of a terrifying spirit that can sometimes be seen before a big storm hits, the one they call the Storm Hag, or the Cailleach. She is known as the queen of winter, and her destructive power is most often witnessed at the end of winter, when her power is fading.

The people of Mullet in county Mayo still speak of an evening on January the 5th in 1839, when before their horrified eyes they saw the ocean waves seem to swell upwards, until they assumed the magnitude of a great mountain!

From its summit the spirit of the wind, the Sea Hag suddenly arose, lifting a towering and warped figure to the very clouds which veiled its head. Two gigantic arms waved wildly on either side, and at their extremities were hands of blue and green fire, flashing like lightning, while the face of a frightful ogre was visible in the column, luminous through the evening gloom.

When the clouds turn gray and the winds pick up into a howl, wise travelers pray that the cause is only a natural tempest and the foul weather is not connected with a storm hag. Storm hags are hateful creatures, and strangely, their hate is one of the few things that brings them pleasure.

In Scotland the Cailleach is known as the storm hag. While the Cailleach presence can be felt throughout the entire year she is most active as she ushers in the Autumn Equinox and is the dark crone of the winter.

In Scotland, a group of hags, known as The Cailleachan (The Storm Hags) are seen as personifications of the elemental powers of nature, especially in a destructive aspect. They are said to be particularly active in raising the windstorms of spring, during the period known as A Chailleach.

She summons storms and attacks in the calm after the weather passes, bursting out of the water with lightning spitting out of her mouth and powerful winds at her call. 

gnarled crones with shriveled orange skin, tangled gray hair, and eyes that burn like hot coals. They see visions of the future in their dreams, and their dark magic allows them to influence the dreams of others, sending messages or inflicting nightmares with a touch. – Eberron: Rising from the Last War