KJFK 161740Z 1618/1724 18012KT P6SM FEW030 SCT250 
  FM170100 19007KT P6SM SCT030 BKN250 
  FM170400 22007KT P6SM SCT030 BKN100 
  PROB30 1704/1708 4SM TSRA BKN030CB 
  FM171400 23012KT P6SM SCT050 
  FM172000 22017G23KT P6SM SCT050 SCT250