Emergency services were called at around 7.35pm to the Mawgan area of Helston, Cornwall, on Thursday, Devon and Cornwall Police said, and work took place on Friday to remove the tree.
“Tragically, a man aged in his 50s was located deceased within the caravan. His next of kin have been informed and are being supported by officers,” the force said.
The death is not being treated as suspicious.
Gale force winds brought trees down across Cornwall, in areas including Penryn, Falmouth, St Stephen and Porthleven, after forecasters issued a rare red warning for “dangerous, stormy” winds in the area.
Storm Goretti has caused chaos across the southwest and other parts of the UK, with about 27,000 properties still without power in the southwest as of 9am on Saturday, along with almost 2,300 in the West Midlands and about 300 in the East Midlands, according to the National Grid’s website.
Following cuts in Wales, all power has since been restored.
Yellow warnings for snow and ice continue remain in force until Sunday and National Rail has warned that disruption may be seen through the weekend across England, Wales and Scotland.
The storm brought heavy rain, snow and strong winds to much of the UK on Friday, with a low temperature of -12.3C (10F) recorded in Braemar in Scotland, the Met Office said.
Some flights were cancelled because of the storm, and footage of Heathrow Airport showed a passenger plane swaying in strong winds as it came in to land.
Forecasters have warned that melting snow and rain will increase the risk of flooding in the coming days.
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