A serious weather-alert for "very strong wind" has been issued for Dorset.
The warning is valid from Friday from 12:00 to 18:00 on Saturday.
The Met Office said storms will become widespread later on Friday with many inland locations that see wind of 50 mph or 60 mph.
Wind gusts up to 70 mph are probably exposed to the west or southwest around some coasts.
Some travel disruptions are also expected, along with short-term losses and large waves along the coast.
The wind will be accompanied by heavy showers all Friday.
The Chief Forecaster said: "These winds will lead to large waves affecting the coasts and the possibility of waves over some coastal routes, especially in the west and south of the warning zone. In addition, heavy rain tires moving eastwards will on Friday, in particular, constitute an additional danger. "
Yesterday a yellow weather-alert was issued by the Met Office, which until today was valid at 9.00 am.
Winds of 50 to 60 mph were predicted with gusts of 70 mph predicted along the coast.