Well, forecasting is a bit of an art and a science. I have been sold a few pups.
The worst two were both runway condition reports and frozen deposits. One was Civvi, the other was Mil. Both were totally incorrect, as I discovered after landing!
OTOH, over 40 years of flying I generally found that both Met and ATC gave a top service and I thank all those involved for their hard work.
OAP