West Yorkshire has been rumoured to be joining Tier 3 for around 2 weeks now, although it does seem as though it's more likely than not it will be within days. According to local media reports, Leeds hospitals are at 98% capacity although it's not clear if that includes all beds, ICU beds or assigned Covid beds
The dire situation in Leeds hospitals, which are now almost full, is understood to be the main driver for wanting to place the county under the strictest measures
www.leeds-live.co.uk
I really doubt Tier 3 restrictions will last just 28 days unfortunately, unless Tier 4 is implemented. It's going to be a long, tough winter