Aviation Digital Data Service (ADDS)

Output produced by METARs form (0314 UTC 18 August 2017)
found at http://www.aviationweather.gov/adds/metars/
 
KPHL 172353Z 1800/1906 19008KT P6SM SCT120 
     FM180300 19008KT P6SM VCTS BKN040CB 
     FM180900 19008KT P6SM BKN050 
     PROB30 1809/1813 4SM -TSRA OVC025CB 
     FM181300 20007KT 6SM -SHRA VCTS OVC060CB 
     FM181600 20006KT 5SM -SHRA OVC080 
     PROB30 1816/1819 4SM TS OVC025CB 
     FM181900 20009KT 6SM SHRA VCTS OVC130CB 
     FM190000 18005KT P6SM BKN070 
     PROB30 1903/1905 4SM -TSRA OVC040CB