"Jon O'Rourke" wrote in message
...
"Graham P Davis" wrote in message
...
Jack ) wrote:

You must be mistaken, Jack. A spokesman (for BAA?) on Radio 5 Breakfast
this
morning that the problems are due to dense fog - dense? - at Heathrow and
that it's unprecedented for it to last so long at this time of year. Of
course that means all the long-lasting freezing fogs that I remember
occurring at this time of year must also be a figment of my imagination.

--
Graham Davis
Bracknell

It's at least somewhat unusual to have fog warnings out over a period of
days without interval for Heathrow.

Nobody at Heathrow, myself included can ever remember such a continuous
period of Low Visibility Procedures (which drives the reduction in
movements) Its not the denseness per se, but conditions of cloud below 200ft
and Runway Visual Ranges of Less than 600m. I can remember several days of
24-36hours but we were into the fourth day of these conditions - came out at
06Z this morning with some SC around.

Phil