The METAR can included SNOCLO but the normal means of communication for an airport closure due to snow is via a SNOWTAM. Others use a NOTAM as checking SNOTAMS on the AIS website requires you to click a box to include SNOWTAM's.
Strictly speaking, RMK should precede the SNOCLO in a METAR report
Yesterdays METAR for EGPE;
METAR EGPE 051820Z 05021KT 9999 8000SW VCSH FEW010 SCT020CB BKN045 02/01 Q1011 SNOCLO