All three Treasure Coast school districts have canceled classes two days before Subtropical Storm Nicole could potentially threaten the Treasure Coast. 

Indian River, St. Lucie and Martin county school districts all will close Wednesday and Thursday, the districts said in statements Monday afternoon.

All district operations, athletics and activities also are canceled. Schools and offices in all three counties already were scheduled to be closed Friday for Veterans Day. 

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School districts plan to begin storm preparation Tuesday by installing shutters on facilities and removing debris that could become projectiles during the storm. 

Indian River County schools plan to open three storm shelters at 7 a.m. Wednesday: Treasure Coast Elementary for special-needs residents, the Freshman Learning Center for the general population and the Freshman Learning Center 800 wing as a pet-friendly shelter.