That is some planning unless it's the same aircraft we almost had earlier in the week with a defect.
If it's that bad then we maybe likely to see either more BA aircraft or possibly other airlines from our friends at BRS
Forecast for LHR
181704Z 1818/1924 15007KT 9999 FEW010 SCT025 BECMG 1819/1822 8000 BECMG 1900/1903 3000 BR MIFG BECMG 1903/1906 0300 FG VV/// BECMG 1910/1913 3000 BR SCT002 TEMPO 1914/1924 5000 HZ TEMPO 1918/1924 BKN005=