Second timed session due to take place this evening
Qualifying for this year's TT is scheduled to continue tonight, but Ronaldsway Met Office says today's weather conditions could have an impact.
In last night's first timed session, Dean Harrison set the pace with a lap in excess of 133mph, with Ryan and Callum Crowe fastest in the sidecars.
The Mountain Road is due to begin to close from 4.45pm, with the whole course closed at 6pm.
The Superbike and Superstock bikes are set to run from 6.30pm, with the Supersports and Supertwins out at 7.20pm and the Sidecars at 8.10pm.
But Senior Meteorologist Kirsty Pendlebury warns the wet and cloudy conditions may not clear in time:
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