High winds are continuing to batter the area this morning and several trees have fallen, resulting in some road closures.
There have been reports of trees down in Grove Mill Lane, Nascot Wood Road and Leggatts Way, Watford.
Trees have also fallen at junction of Highfield Way and Berry Lane and in Riverside Drive, Rickmansworth.
London Midland is running a replacement bus service between Watford Junction and St Albans Abbey due to an obstruction on the line.
There are also reports of a bridge in Little Oxhey Lane being closed.