Flooding causes rail and roads delays in Brockenhurst
Heavy downpours left roads in Brockenhurst in the New Forest impassable and hit train services.
South West Trains said the line between Bournemouth and Brockenhurst had been shut because of flooding.
Hundreds of rail commuters suffered delays of several hours with long queues forming for replacement bus services.
BBC Radio reporter Tim Atkinson described "complete chaos" at Southampton Central station.
"The information is very unreliable and inconsistent. It's very frustrating - people don't know if they'll get home and how long they'll have to wait," he said.
South West Trains said eleven replacement buses were operating between Southampton Airport Parkway and Bournemouth.
A spokesman said stations between Brockenhurst and Bournemouth could not be served because of flooding on roads.
Elsewhere in the New Forest, the B3055 Sway Road was closed in both directions between The Rise junction and the Pitmore Lane junction.
Brookley Road in the village was said to be impassable at the Burley Road junction.
Castle Hill Lane in Burley was also blocked northbound near the Ringwood Road junction due to a fallen tree.
Sharon Dibden, of Brockenhurst Church, said: "It's come into the church garden at the bottom; it's up to about knee height across the road.
"We had to cancel Holy Mass this morning. It's the first time I've ever known a service to be cancelled."
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Morebus said its services to Brockenhurst College were suffered delays as buses were having to divert onto the A35 to avoid the floodwater.
Police have urged drivers not to risk driving through floodwaters.