1. Unregistered

    Unregistered Guest

    hi
    i am hoping to film contrails in the next couple of weeks in central london
    there don't seem to be any all of a sudden!!
  2. Mick West

    Mick West Administrator Staff Member

    I'm not aware of a specific contrail forecast for the UK.
  3. Jay Reynolds

    Jay Reynolds Senior Member

    Wait for an approaching front with associated cirrus clouds. Those are the conditions most suitable for the abundant upper air moisture necessary for persistent contrail formation.
    You could ask an RAF veteran from WWII, he will probably be able to feel the right conditions coming on in his bones.

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