When Storms Meant Judgment: Witchcraft and Maritime Fear in the 17th Century
When modern travelers think about crossing the Atlantic, they imagine airports, flight times, and weather forecasts. But for people living in the seventeenth century, a voyage across the ocean was something entirely different.
Passengers boarded wooden vessels for journeys that could last six to ten weeks. They slept in crowded quarters, ate rationed food, and watched the horizon for storms that could appear without warning.
And when storms did appear, they were rarely understood as natural events.
They were signs.
Storms Were Theological Events
In the early modern world, weather was rarely neutral. Religious belief shaped how people interpreted the natural environment, and storms were often understood through biblical precedent.
Stories from scripture reinforced this worldview.
In the Book of Jonah, a storm threatens a ship carrying the prophet Jonah after he attempts to flee from God’s command. The crew eventually determines that Jonah’s disobedience has caused the storm and throws him into the sea to calm the waters.
In the Gospel of Mark, Christ stills a storm on the Sea of Galilee, demonstrating divine authority over wind and waves.
These stories reinforced the idea that storms were not random. They were moral events connected to divine will.
This belief appears directly in the 1662 Book of Common Prayer, which includes specific prayers “to be used at sea.” One prayer begins:
“O most powerful and glorious Lord God, at whose command the winds blow and lift up the waves of the sea, and who stillest the rage thereof…”
The language assumes something fundamental: that wind and waves respond to divine authority.
If storms were sent by God, then people living through them often believed that someone must have provoked them.
The “Protestant Wind”
The connection between weather and divine intervention became especially visible during the defeat of the Spanish Armada in 1588.
After English forces scattered the Spanish fleet, storms drove many Spanish ships onto rocky coastlines. Protestant pamphlets quickly interpreted the event as divine intervention.
The storms became known as the “Protestant Wind.”
In this interpretation, God had intervened to defend Protestant England from Catholic invasion.
The idea reinforced a broader cultural belief: storms could express divine judgment.
Ships as “Little Commonwealths”
Life aboard seventeenth-century ships operated within a strict hierarchy.
The captain commanded the vessel. Officers enforced discipline. Sailors obeyed orders.
Many historians describe ships of this period as “little commonwealths afloat.”
Order was essential. A single mistake during a storm could destroy a mast or sink a vessel.
Because survival depended on obedience, captains were granted extraordinary authority.
Unlike courts on land, ships had no jury system. There was no formal appeals process. Discipline had to be immediate and decisive.
The law did not disappear at sea. It adapted.
And that adaptation allowed captains wide discretion in moments of crisis.
Witchcraft and the Sea
Belief in witchcraft also shaped how storms were interpreted.
In 1597, King James VI of Scotland published Daemonologie, a treatise on witchcraft that described how witches could allegedly raise storms and tempests.
James wrote that witches could:
“raise storms and tempests in the air, either upon sea or land.”
Because the king himself endorsed this belief, it circulated widely through sermons, legal proceedings, and popular culture.
By the time English ships were regularly crossing the Atlantic, the idea that storms could be conjured by witches was widely accepted.
A storm did not need proof of supernatural cause.
It only needed suspicion.
Why Women Were Often Accused
Women aboard ships occupied a unique and vulnerable position.
Sailors had defined roles within the vessel’s hierarchy. Officers commanded crews. Merchants managed cargo.
Even indentured servants had contracts tying them to labor.
Women often had no equivalent place within this structure.
They were passengers rather than participants in the ship’s labor system.
When storms threatened survival, suspicion often focused on those outside the ship’s hierarchy.
Women traveling without husbands or kin had few defenders.
Their reputations, which might have been protected by community networks on land, did not easily travel across the ocean.
Without parish records, neighbors, or family testimony, a woman’s identity could quickly collapse into rumor.
Fear and Restoration
When storms passed, people aboard ships often interpreted the calm as confirmation that the correct action had been taken.
If someone had been accused and removed (whether through punishment, abandonment, or execution) the calm sea seemed to validate the decision.
In this way, maritime justice often functioned less as legal procedure and more as restoration.
Order had been disrupted.
Someone had been blamed.
And once the sea quieted, the explanation felt complete.
The Women History Almost Forgot
Katherine Grady’s execution at sea was not an isolated moment.
Another woman, Elizabeth Richardson, was executed aboard a Maryland-bound vessel only a few years earlier.
These cases reveal how early modern belief systems, maritime authority, and fear could combine in ways that made violence appear rational to those living through it.
The ocean preserved the ships that carried these stories but it rarely preserved the women themselves.
Sources for Blog
Rediker, Marcus. Between the Devil and the Deep Blue Sea: Merchant Seamen, Pirates and the Anglo-American Maritime World. Cambridge University Press, 1987.
Religious worldview and storms
The Church of England. The Book of Common Prayer, 1662. “Prayers to be Used at Sea.”
The Holy Bible. Passages including Jonah 1 and Mark 4:35–41.
Storm interpretation and the Protestant Wind
Loades, David. The Tudor Navy: An Administrative, Political and Military History. Aldershot: Scolar Press, 1992.
Parker, Geoffrey. The Grand Strategy of Philip II. Yale University Press, 1998.
Witchcraft beliefs
James VI and I. Daemonologie. Edinburgh, 1597.
Sharpe, James. Instruments of Darkness: Witchcraft in Early Modern England. University of Pennsylvania Press, 1996.
Maritime authority and shipboard discipline
Rodger, N.A.M. The Safeguard of the Sea: A Naval History of Britain 660–1649. Norton, 1997.
Rediker, Marcus. Between the Devil and the Deep Blue Sea: Merchant Seamen, Pirates and the Anglo-American Maritime World. Cambridge University Press, 1987.
Women and vulnerability in maritime culture
Cordingly, David. Women Sailors and Sailors’ Women. Random House, 2001.
