The Clerk of the Course has confirmed this evening's qualifying session has been cancelled.
Despite earlier optimism with improving weather conditions the decision has been taken to cancel them altogether.
A revised schedule for tomorrow will be issued shortly, and the roads will remain open as usual.
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One of the Island's largest local authorities is looking for a new clerk.
School meals meat bought locally, but may not be Manx
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Manx Care staff suspensions cost £110,000, says minister
Health and Social Care Minister Claire Christian says 15 members of Manx Care staff have been suspended in the last four years, at a cost of around £110,000.
Commissioners worried about speed cameras on new 20mph signs
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Formula One Classic TT cancelled
MGP organisers say Friday's race schedule has been tweaked after delays to today's action on the Mountain Course.
Course due to close at 6pm, say police
Police say roads around the Mountain Course are due to close at 6pm for racing.
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Racing delayed again, with schedule update "imminent"
Race organisers say there's a further delay to today's racing.
