A yellow weather warning has been issued across Greater Manchester, with potential disruptions expected for travel, including flights and public transport. The Met Office has issued the warning for fog, which is expected to cause delays and cancellations, particularly during Thursday evening and night. The fog is predicted to become more widespread and dense, with visibility falling below 100 meters in some areas. This warning covers a wide range of areas in Greater Manchester, including Bury, Bolton, Wigan, Manchester, Trafford, Salford, and parts of Tameside. The fog is expected to thin and lift into low cloud late at night or early Friday morning. To avoid delays, drivers are advised to check road conditions, leave extra journey time, and ensure their fog lights are functional. Public transport and flights may also be impacted, so travelers are encouraged to stay updated and follow travel company advice.