Aviation Digital Data Service (ADDS)

Output produced by METARs form (0849 UTC 18 August 2017)
found at http://aviationweather.gov/adds/metars/
 
EGLL 180820Z AUTO 24013KT 9999 FEW019 17/13 Q1011 NOSIG
TAF EGLL 180504Z 1806/1912 23010KT 9999 SCT035 
     TEMPO 1811/1819 25015G27KT 7000 SHRA 
     PROB30 
     TEMPO 1811/1817 4000 +SHRA 
     PROB30 
     TEMPO 1822/1901 7000 SHRA