Aviation Digital Data Service (ADDS)

Output produced by METARs form (1312 UTC 21 May 2018)
found at http://aviationweather.gov/adds/metars/
 
KHUM 211128Z 2112/2212 VRB03KT P6SM SCT020 
     FM211700 07004KT P6SM VCTS FEW030CB SCT100 
     FM212100 12005KT P6SM FEW045 SCT100 
     PROB30 2121/2124 4SM TSRA BKN035CB BKN045 
     FM220100 18004KT P6SM FEW025 SCT110