Aviation Digital Data Service (ADDS)

Output produced by METARs form (0158 UTC 18 October 2017)
found at http://aviationweather.gov/adds/metars/
 
EGLL 180150Z AUTO 05003KT 9999 BKN026 OVC030 12/09 Q1014 NOSIG
TAF EGLL 172250Z 1800/1906 04005KT 9999 SCT040 
     PROB40 
     TEMPO 1800/1806 8000 -RA 
     BECMG 1806/1809 7000 -RA BKN012 
     BECMG 1809/1812 BKN007 
     PROB40 
     TEMPO 1809/1816 3000 RADZ BR BKN004 
     TEMPO 1818/1822 9999 NSW SCT012 
     PROB40 
     TEMPO 1822/1906 2500 BR BKN003