"Phil Layton" wrote in message
...
EGLL 040950Z VRB03KT 0300 R09L/0550 R09R/0400 FG VV/// 02/00 Q1033 TEMPO
0800 BKN002
EGLL 040920Z 09003KT 6000 FEW002 02/M00 Q1034 BECMG 4000 BR BKN004
EGLL 040850Z VRB02KT 8000 NSC 01/M01 Q1034 TEMPO 4000 BR BKN005

One of those days when the fog comes when everybody thinks it won't!

Well forecasted on the KK/SS TAFs - LL nearly!

Phil

From what I remember from the data I saw yesterday it looked like an area of
low stratus would advect in/develop to give fog at elevated stations but
mist/very low stratus looked more likely at Heathrow.

Notice the long TAF issued at 2230Z did have a risk of fog but it didn't
make it into the short TAFS

TAF EGLL 032241Z 040606 VRB05KT 3000 BR NSC
BECMG 0811 BKN005 TEMPO 1106 1400 -DZ BKN002
PROB40 TEMPO 1117 6000 NSW SCT008 PROB40 TEMPO 1706 0700 FG BKN000=

Jon.