With just over 48 hours to go until an unclaimed £12m prize is due to expire, The Lord Mayor of Birmingham, Councillor Mike Leddy, started a special countdown clock outside the Library of Birmingham.
The clock was started to add urgency to the plea for Ladywood residents to check their tickets.
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Fog patches and extensive low cloud at first will steadily lift and clear.
A murky start with mist and fog then gradually clearing, although some eastern coastal districts may remain cloudier.
Isolated showers should die out through the evening to leave a dry remainder of the night.