The new rules being put to good use at Heathrow this morning..

EGLL 040920Z 31001KT 3500 1500W BR BKN040 06/05 Q1029 NOSIG
EGLL 040850Z 28001KT 3500 1500W BR FEW000 BKN042 06/05 Q1029 TEMPO 1200
EGLL 040820Z 27002KT 3500 1200W R27L/P1500 R27R/P1500 BCFG BR FEW000 SCT025
BKN042 05/05 Q1029 NOSIG
EGLL 040750Z 28003KT 3500 0800W BCFG BR FEW000 BKN038 05/05 Q1029 TEMPO 2000
BR
EGLL 040720Z 28003KT 3000 0800W BCFG BR FEW000 SCT002 BKN038 05/05 Q1028
TEMPO 1200 BKN002
EGLL 040650Z 28004KT 4300 2000W BR FEW003 BKN038 05/05 Q1028 TEMPO 1500
BKN003
EGLL 040620Z 27004KT 4700 2300SW BR FEW003 BKN038 05/05 Q1028 TEMPO 1200
BKN002

Prevailing vis strangely not evident in many other obs, most puzzling,
*cough*.

Jon.