METAR CYHM 180500Z 17006KT 12SM SCT160 18/16 A3001 RMK AC4 SLP162 DENSITY ALT 1300FT
TAF CYHM 172342Z 1800/1824 17007KT P6SM SCT040 BKN250 
  TEMPO 1800/1802 BKN040 BKN250 
  FM180200 10007KT P6SM SCT020 BKN040 
  TEMPO 1802/1806 4SM -SHRA BKN008 OVC020 
  PROB30 1802/1805 VRB15G25KT 2SM TSRA BR BKN006 OVC030CB 
  FM180600 08006KT P6SM BKN180 
  PROB30 1806/1808 1SM BR 
  FM180800 08006KT 1SM BR BKN008 
  PROB30 1808/1811 1/2SM FG VV002 
  FM181100 21007KT P6SM BKN180 
  BECMG 1814/1816 22015G25KT 
  FM181800 22017G27KT P6SM FEW040 
  BECMG 1821/1823 20010G22KT RMK NXT FCST BY 180600Z
METAR CYSN 180100Z 18007KT 15SM OVC250 21/16 A2999 RMK CI8 LAST STFD OBS/NXT 181100Z SLP157 DENSITY ALT 1100FT
TAF CYSN 171940Z 1720/1801 21010KT P6SM FEW030 SCT240 RMK NXT FCST BY 181300Z