Glass fell several storeys from the top of the Lloyds Banking Group building as high winds began to batter Calderdale.
One of the building's iconic glass panels is thought to have smashed because of the pressure of the high winds.
St John's Lane, a back street that runs behind the building from Trinity Road, has been temporarily closed, with glass shattered across the street.
Winds of up to 70mph have been forecast along with a yellow weather warning in some parts of Yorkshire, with Halifax having faced gales of around 20mph today.
There have been issues across the country, with a woman in Edinburgh having been hospitalised after having been struck by a roof slate this morning.
A spokesperson from Calderdale Council, who assisted with the clean-up, said:
“We were contacted by the Police who requested the closure of a road following wind damage to the Lloyds Banking Group building.
“The road will remain closed until Lloyds’ building managers have carried out a full safety inspection of the premises.”
Winds are due to subside as we enter the evening, with high speeds of just 11mph expected tomorrow.