FORECASTERS have officially classified Storm Doris as a “weather bomb” as it heads towards Rotherham.
The Met Office said the storm had “rapidly deepened” over the last 24 hours creating more violent winds.
It said wind gusts of up to 80mph could hit the borough, causing widespread travel disruption.
Damage to property and further disruption is also possible throughout the day.
An amber weather warning remains in place until around 8pm on Thursday, with the worse of the storm still to hit.
A Met Office spokesman said: “While the strongest winds look to be only short-lived, damage to structures, interruptions to power supplies and widespread disruption to travel networks are likely, with a danger of injury from flying debris. Trees are also likely to be damaged or blown over.
“Heavy rain is also likely through Thursday as well as some snow over high ground as the system clears eastwards. These may prove additional hazards.”
A weather bomb is when air flows quickly into a low pressure area, causing the air to rapidly rotate.
When the pressure increases, this becomes a ‘weather bomb’.
The science behind it says that to be considered a weather bomb, the central pressure of the storm system, must dip by 24 millibars in a 24 hour period.
Highways England advised drivers of high-sided vehicles, caravans and motorbikes to avoid using the M1 at junction 32 for the M18 and the Tinsley Viaduct at junction 34.