Aviation Digital Data Service (ADDS)

Output produced by METARs form (1956 UTC 21 October 2014)
found at http://aviationweather.gov/adds/metars/
 
KBTV 211725Z 2118/2218 VRB03KT 6SM -SHRA BR OVC035 
     TEMPO 2118/2121 5SM -SHRA BR OVC025 
     FM212100 36006KT P6SM VCSH OVC025